Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    03/06/2024, 07:45

General

  • Target

    2024-06-03_c5b05103f199c47dfd8fa58ff609d129_cryptolocker.exe

  • Size

    39KB

  • MD5

    c5b05103f199c47dfd8fa58ff609d129

  • SHA1

    1480994d1e47308a803313a43215b3fb4df81253

  • SHA256

    ba7c74af0dad09ae4ba8e7a35f537ec3d7e6ace2d4a36127c722c10911e6d862

  • SHA512

    e099a3bca148812b98d262e3462fbeb84442105d1cf2eb1fc8ec4b9ad0231c9275f99ab86ee5ca8e62d4796652c2ad50726df6b3fe4f8d69e20b05cbf7476797

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenUDq6:ZzFbxmLPWQMOtEvwDpjLe16

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-03_c5b05103f199c47dfd8fa58ff609d129_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-03_c5b05103f199c47dfd8fa58ff609d129_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    39KB

    MD5

    961aed16554f5802ae9959e3fc2db61f

    SHA1

    5574b9f315d567a030ce6874a4f6b85ec5b95d50

    SHA256

    689552e1523914932f20d780a702a0401efd97420432420f6ba3f6d819dbcfd5

    SHA512

    f84adbe8d795b269c80afe2ff5a803eed0a5209e24b0da3e8640b5f93a66e7acc7d8bcbdd24d5934c1806696584309da5debdf1f0725f49735adfca28f089afc

  • memory/1008-0-0x0000000000230000-0x0000000000233000-memory.dmp

    Filesize

    12KB

  • memory/1008-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1008-2-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/1008-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1984-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1984-16-0x0000000000230000-0x00000000002B0000-memory.dmp

    Filesize

    512KB

  • memory/1984-18-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/1984-25-0x0000000000230000-0x00000000002B0000-memory.dmp

    Filesize

    512KB