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Analysis

  • max time kernel
    179s
  • max time network
    214s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2022, 22:59

General

  • Target

    1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb.exe

  • Size

    499KB

  • MD5

    4d9bfe9335af7c620e1fdc6a57a2417f

  • SHA1

    a233274ecaa4ed9cb2cb0a7e5f2f0d1bb9cff093

  • SHA256

    1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb

  • SHA512

    93d2d456bfc978c196f6a29de682b02d276463dc139ceab9855c05b8dd2205f6d6844e21acc6cd9f3ca9bc6b7a59d78eb6b0d8aa81fc8cb779884a077972a800

  • SSDEEP

    6144:QpiZV0gyN8X+VtBG/37c2aLQEM/8ER0u+GIIIIIIIhIIIIIIIIIIIIIIIUk:QpY0gyN8uDBGJ2QNvm5k

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 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
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb.exe
    "C:\Users\Admin\AppData\Local\Temp\1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1080
    • C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe
      "C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1224

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe

    Filesize

    499KB

    MD5

    4d9bfe9335af7c620e1fdc6a57a2417f

    SHA1

    a233274ecaa4ed9cb2cb0a7e5f2f0d1bb9cff093

    SHA256

    1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb

    SHA512

    93d2d456bfc978c196f6a29de682b02d276463dc139ceab9855c05b8dd2205f6d6844e21acc6cd9f3ca9bc6b7a59d78eb6b0d8aa81fc8cb779884a077972a800

  • C:\Users\Admin\AppData\Roaming\steamwebhelper2\steamwebhelper.exe

    Filesize

    499KB

    MD5

    4d9bfe9335af7c620e1fdc6a57a2417f

    SHA1

    a233274ecaa4ed9cb2cb0a7e5f2f0d1bb9cff093

    SHA256

    1003bd98a8bd98815d1c57dc91c68e7f844901bbce8fa5dfb858fb488707a4bb

    SHA512

    93d2d456bfc978c196f6a29de682b02d276463dc139ceab9855c05b8dd2205f6d6844e21acc6cd9f3ca9bc6b7a59d78eb6b0d8aa81fc8cb779884a077972a800

  • memory/1080-132-0x0000000000420000-0x00000000004A2000-memory.dmp

    Filesize

    520KB

  • memory/1080-133-0x0000000005910000-0x0000000005EB4000-memory.dmp

    Filesize

    5.6MB

  • memory/1080-134-0x0000000005440000-0x00000000054D2000-memory.dmp

    Filesize

    584KB

  • memory/1080-135-0x00000000055F0000-0x00000000055FA000-memory.dmp

    Filesize

    40KB