Overview

overview

10

Static

static

469c039087...66.exe

windows7_x64

10

469c039087...66.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    132s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    18/03/2022, 11:42

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General

  • Target
    469c039087902ef19c2bb75bb3977566.exe
  • Size 279KB
  • Sample220318-nt2ershgem
  • SHA256 5beb4712e57b09d06bfe429f49f3c4a2d4460238bb971912b89133f6bf2df184
  • MD5 SHA1 SHA512
Score
10/10
defaultdiscoveryspywarestealersuricata

Malware Config

Extracted

Family

  • arkei

Botnet

  • Default

C2

  • http://coin-file-file-19.com/tratata.php

Signatures

  • Arkei 2 IoCs
  • suricata: ET MALWARE Win32/Arkei Stealer CnC Checkin (GET)

    suricata: ET MALWARE Win32/Arkei Stealer CnC Checkin (GET)

    suricata
  • suricata: ET MALWARE Win32/Arkei Stealer CnC Checkin (POST)

    suricata: ET MALWARE Win32/Arkei Stealer CnC Checkin (POST)

    suricata
  • suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

    suricata: ET MALWARE Win32/Vidar Variant/Mars Stealer CnC Exfil

    suricata
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\469c039087902ef19c2bb75bb3977566.exe
    "C:\Users\Admin\AppData\Local\Temp\469c039087902ef19c2bb75bb3977566.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:2692
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\469c039087902ef19c2bb75bb3977566.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • Delays execution with timeout.exe
        PID:428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2692 -s 1676
      2⤵
      • Program crash
      PID:2740
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2692 -ip 2692
    1⤵
      PID:2416

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2692-130-0x00000000005AC000-0x00000000005BF000-memory.dmp
          Download

          memory/2692-131-0x00000000005AC000-0x00000000005BF000-memory.dmp
          Download

          memory/2692-132-0x00000000004B0000-0x00000000004CF000-memory.dmp
          Download

          memory/2692-133-0x0000000000400000-0x0000000000477000-memory.dmp
          Download