Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/02/2023, 14:59

General

  • Target

    file.exe

  • Size

    109KB

  • MD5

    3fce78722810e0401bbcc3e4a34f7968

  • SHA1

    94a9a29b18b11c638d2afaa354ba4e977275554d

  • SHA256

    45cfdf58e57165604dac0d03c127f143c3474fe41d2f3c7e11397775ddef198d

  • SHA512

    8f63b89798886c9f350aaafeb9650a923d953c6991f203bea5f27abdc223d43aa6314a9356bd781f3dfa87d83388b6d3c616ad5e6b68e66ccaad7a05147d3dd1

  • SSDEEP

    1536:Xtl+apfNkYJTrgdiPluOcN6IBVQqqTxJHWe2zm4uz5dh3Hkq4/T6dcE19gLIMLme:T/pf9ttcQIToHWef4u136E/gLIML8Y

Score
7/10

Malware Config

Signatures

  • 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4904
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 2164
      2⤵
      • Program crash
      PID:3188
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 5004 -ip 5004
    1⤵
      PID:1100

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4904-141-0x0000000005C00000-0x0000000005C66000-memory.dmp

      Filesize

      408KB

    • memory/4904-138-0x0000000002D30000-0x0000000002D66000-memory.dmp

      Filesize

      216KB

    • memory/4904-139-0x0000000005440000-0x0000000005A68000-memory.dmp

      Filesize

      6.2MB

    • memory/4904-140-0x0000000005AE0000-0x0000000005B46000-memory.dmp

      Filesize

      408KB

    • memory/4904-142-0x00000000062B0000-0x00000000062CE000-memory.dmp

      Filesize

      120KB

    • memory/4904-143-0x0000000007B10000-0x000000000818A000-memory.dmp

      Filesize

      6.5MB

    • memory/4904-144-0x00000000067B0000-0x00000000067CA000-memory.dmp

      Filesize

      104KB

    • memory/5004-133-0x00000000056D0000-0x0000000005C74000-memory.dmp

      Filesize

      5.6MB

    • memory/5004-134-0x0000000005120000-0x00000000051B2000-memory.dmp

      Filesize

      584KB

    • memory/5004-135-0x0000000005220000-0x000000000522A000-memory.dmp

      Filesize

      40KB

    • memory/5004-136-0x0000000006C30000-0x0000000006C52000-memory.dmp

      Filesize

      136KB

    • memory/5004-132-0x00000000006D0000-0x00000000006F0000-memory.dmp

      Filesize

      128KB