Analysis

  • max time kernel
    140s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-07-2022 22:42

General

  • Target

    8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe

  • Size

    220KB

  • MD5

    6f479074761ed9fcd8eab62e378dd861

  • SHA1

    8dfbcabb2c4c5c7aeaf13849c142073b14ed7c45

  • SHA256

    8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178

  • SHA512

    171dfb6f9fabbdc794cf070e37e37900c985c5c7c1cd34fb944ffae18d552d1e0da58531b64a681d76c1d60d27552ad08220c633beb8e1a52a58ea9d070c7946

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Program crash 1 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
    "C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe:Zone.Identifier"
      2⤵
      • NTFS ADS
      PID:2868
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:4508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 464
          3⤵
          • Program crash
          PID:1472
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4508 -ip 4508
      1⤵
        PID:3328

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1996-136-0x0000000006910000-0x0000000006EB4000-memory.dmp

        Filesize

        5.6MB

      • memory/1996-131-0x00000000057B0000-0x00000000057D2000-memory.dmp

        Filesize

        136KB

      • memory/1996-132-0x0000000005900000-0x0000000005992000-memory.dmp

        Filesize

        584KB

      • memory/1996-133-0x00000000057E0000-0x0000000005802000-memory.dmp

        Filesize

        136KB

      • memory/1996-134-0x00000000059A0000-0x0000000005A06000-memory.dmp

        Filesize

        408KB

      • memory/1996-130-0x0000000000E70000-0x0000000000EAC000-memory.dmp

        Filesize

        240KB

      • memory/1996-137-0x0000000006EC0000-0x0000000007082000-memory.dmp

        Filesize

        1.8MB

      • memory/1996-138-0x0000000006810000-0x00000000068AC000-memory.dmp

        Filesize

        624KB

      • memory/2868-135-0x0000000000000000-mapping.dmp

      • memory/4508-139-0x0000000000000000-mapping.dmp

      • memory/4508-141-0x0000000000480000-0x0000000000492000-memory.dmp

        Filesize

        72KB

      • memory/4508-144-0x0000000000480000-0x0000000000492000-memory.dmp

        Filesize

        72KB

      • memory/4508-147-0x0000000000480000-0x0000000000492000-memory.dmp

        Filesize

        72KB