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Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2023, 04:21

General

  • Target

    b76c2a73e579c3631b5d4671a4cfc4f4.exe

  • Size

    34KB

  • MD5

    b76c2a73e579c3631b5d4671a4cfc4f4

  • SHA1

    863d99be05416fbad97b9755574b5fceaa86c89f

  • SHA256

    c31708aacbc8384784cd80c899d40ab84315381f64c41c8b1fe5d53911a6f1d8

  • SHA512

    bba2f6268bae744b8ddfe3326ad6ec49cab034817f2f5cb5b2617617e0b92db221807f08f728588dcff62128144256eb306aed9d580c084320a085c2901e8da3

  • SSDEEP

    768:KJLjkGoQ1/COVXQpq/S+tNjv3fwKUOYBXNb5d:KxgGoQ1/zWpR+Di9F5d

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b76c2a73e579c3631b5d4671a4cfc4f4.exe
    "C:\Users\Admin\AppData\Local\Temp\b76c2a73e579c3631b5d4671a4cfc4f4.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Users\Admin\AppData\Roaming\loader.exe
      "C:\Users\Admin\AppData\Roaming\loader.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\loader.exe

    Filesize

    10KB

    MD5

    7eaaa0cf450dcca42997720f1947922a

    SHA1

    8f7766ec27a05f710e07ffe77876c81cba110d23

    SHA256

    79e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea

    SHA512

    b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660

  • C:\Users\Admin\AppData\Roaming\loader.exe

    Filesize

    10KB

    MD5

    7eaaa0cf450dcca42997720f1947922a

    SHA1

    8f7766ec27a05f710e07ffe77876c81cba110d23

    SHA256

    79e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea

    SHA512

    b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660

  • C:\Users\Admin\AppData\Roaming\loader.exe

    Filesize

    10KB

    MD5

    7eaaa0cf450dcca42997720f1947922a

    SHA1

    8f7766ec27a05f710e07ffe77876c81cba110d23

    SHA256

    79e717e6e868a25dcdac5277609a7be1cae6fedb5740cbb333ce2c2b604c42ea

    SHA512

    b45c1568c742c82b3ff5d5f973e5e19deb26ed2152409f1b922460d711b045c0cd4d9a4b18665df69e64559f2a74c0df828fdb9253a6395189ad841ef6130660

  • memory/116-146-0x0000000000010000-0x0000000000018000-memory.dmp

    Filesize

    32KB

  • memory/116-147-0x00000000007A0000-0x00000000007BA000-memory.dmp

    Filesize

    104KB

  • memory/116-148-0x00000000007D0000-0x00000000007E0000-memory.dmp

    Filesize

    64KB

  • memory/116-149-0x00000000007D0000-0x00000000007E0000-memory.dmp

    Filesize

    64KB

  • memory/1716-133-0x0000000000650000-0x000000000065E000-memory.dmp

    Filesize

    56KB