Analysis

  • max time kernel
    179s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 07:38

General

  • Target

    217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0.exe

  • Size

    490KB

  • MD5

    c97acce7fba9ef377caae5bdd63da38b

  • SHA1

    fa3b805cb35a8316968d0fe3ba25cd7503ccc29e

  • SHA256

    217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0

  • SHA512

    029c35aba208cf6acf6597f20345b3ac18362ec5c1f7f38ba0bf4bad9d4141833b0d9a0232e40b4b718d5db6a2b647085562ea27652090e5f1e9668a38cba46c

  • SSDEEP

    12288:FQxMWFxidBbJJjbesgg0oWB7OpbDH9adTl2aR42/vaq+8JG6:WMWFxid5TjFHdadTl2aOQCq+8JG6

Score
9/10

Malware Config

Signatures

  • NirSoft MailPassView 1 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 1 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0.exe
    "C:\Users\Admin\AppData\Local\Temp\217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4376
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "hhpmuvALLl" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\RkUBJybLMK\pSjjATwLkf.exe.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "hhpmuvALLl" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\RkUBJybLMK\pSjjATwLkf.exe.lnk"
        3⤵
        • Adds Run key to start application
        PID:5048
    • C:\Users\Admin\AppData\Local\Temp\217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0.exe
      "C:\Users\Admin\AppData\Local\Temp\217578d645084dfcde759d1d722faca1656383f359c77107e2470d538a3a4df0.exe"
      2⤵
        PID:2820

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1920-134-0x0000000000000000-mapping.dmp

    • memory/2820-135-0x0000000000000000-mapping.dmp

    • memory/2820-136-0x0000000000400000-0x000000000048C000-memory.dmp

      Filesize

      560KB

    • memory/2820-139-0x0000000074CE0000-0x0000000075291000-memory.dmp

      Filesize

      5.7MB

    • memory/2820-140-0x0000000074CE0000-0x0000000075291000-memory.dmp

      Filesize

      5.7MB

    • memory/4376-132-0x0000000074CE0000-0x0000000075291000-memory.dmp

      Filesize

      5.7MB

    • memory/4376-133-0x0000000074CE0000-0x0000000075291000-memory.dmp

      Filesize

      5.7MB

    • memory/4376-137-0x0000000074CE0000-0x0000000075291000-memory.dmp

      Filesize

      5.7MB

    • memory/5048-138-0x0000000000000000-mapping.dmp