Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/12/2022, 14:56

General

  • Target

    5a8072f4488147bda3c87c9c2edff02de9761a0551d6aa63f4e898b9d3670fe7.exe

  • Size

    224KB

  • MD5

    c4110fad0df9364cd040f46dac9a80f7

  • SHA1

    e64d74347e5d46a935d85c41854e65ef2f499bde

  • SHA256

    5a8072f4488147bda3c87c9c2edff02de9761a0551d6aa63f4e898b9d3670fe7

  • SHA512

    9885a1749f6c7de4d4306c29525c2f95b66f4022664b0a857b2a765efac54c36a198654c2081443ead74fda1a92b489fd9463be5cb5e6e5876a42ce5f401c595

  • SSDEEP

    3072:ph4tkkJG7QZk5Q+RQKRQwRQqBlmZYu9EQOjI8b4brm+8RN9my4Y3qf3w1alepaWJ:12K2w2kmZ7qHbNwy/Ig1WepBvp

Score
8/10

Malware Config

Signatures

  • Sets file execution options in registry 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a8072f4488147bda3c87c9c2edff02de9761a0551d6aa63f4e898b9d3670fe7.exe
    "C:\Users\Admin\AppData\Local\Temp\5a8072f4488147bda3c87c9c2edff02de9761a0551d6aa63f4e898b9d3670fe7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Users\Admin\AppData\Local\Temp\5a8072f4488147bda3c87c9c2edff02de9761a0551d6aa63f4e898b9d3670fe7.exe
      2⤵
      • Sets file execution options in registry
      • Checks computer location settings
      • Checks for any installed AV software in registry
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3412
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x188503F3" /TR "C:\ProgramData\winsys0\ehqcibmit.exe" /RL HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:2236
      • C:\Windows\SysWOW64\WerFault.exe
        "C:\Windows\SysWOW64\WerFault.exe"
        3⤵
          PID:1528

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1528-143-0x0000000073FD0000-0x00000000740A0000-memory.dmp

      Filesize

      832KB

    • memory/1528-146-0x0000000073FD0000-0x00000000740A0000-memory.dmp

      Filesize

      832KB

    • memory/1528-147-0x0000000073FD0000-0x00000000740A0000-memory.dmp

      Filesize

      832KB

    • memory/3412-135-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3412-137-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3412-139-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3412-140-0x00000000005A0000-0x00000000005EB000-memory.dmp

      Filesize

      300KB

    • memory/3412-142-0x00000000006E0000-0x00000000006E9000-memory.dmp

      Filesize

      36KB

    • memory/3412-145-0x00000000005A0000-0x00000000005EB000-memory.dmp

      Filesize

      300KB