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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/01/2024, 01:29

General

  • Target

    2024-01-25_688c63508a1a98d7ad4b131251613ff4_cryptolocker.exe

  • Size

    38KB

  • MD5

    688c63508a1a98d7ad4b131251613ff4

  • SHA1

    f02ff2facb3f86254d29c5d9522f0a52d661cb68

  • SHA256

    d9dbdde376caa5535945321a0b0a1dc9af082166b0165422a58c1564a4458f9f

  • SHA512

    39d37d3f425c3a7c1744d02de5fdda53f611e1c654afe5acb73b2884e84e213ba238c49c9c80fda021883ae3330a7c395df8a7162d13b294dbfb20f0eaf9ebfb

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpj66BLtldJQB2:i5nkFGMOtEvwDpjn/JQ8

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-01-25_688c63508a1a98d7ad4b131251613ff4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_688c63508a1a98d7ad4b131251613ff4_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2780

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    99846a3d595bf7fa3c91de7840bbca78

    SHA1

    87a6a929565f416fb141bd7d77a9db62bb115e9b

    SHA256

    c1b80fba9d84795ee095096a8dae7000c536c5f619199c55acc594ffcfe4166a

    SHA512

    ee4409ef22557e15f3deca0c2079c4d03ca5d5d2f3b0069a6c3a4ddbd0b864a3ec61af1716a88fa131843a1a1ae2f9fe40c50cb130ad0a27f595d61a0b25a8cc

  • memory/2460-8-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2460-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2460-1-0x0000000000380000-0x0000000000386000-memory.dmp

    Filesize

    24KB

  • memory/2460-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2780-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2780-18-0x0000000000390000-0x0000000000396000-memory.dmp

    Filesize

    24KB

  • memory/2780-25-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2780-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB