Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    19/02/2024, 21:44

General

  • Target

    2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe

  • Size

    38KB

  • MD5

    8be39f9fbba0598426070ef2440a9eed

  • SHA1

    ff0e91607bc2ca054f37cc385013e0276efa2fbf

  • SHA256

    bfe60b0313a53a7df41b6aa15c9fc694b62c8e5691296b37575f9ccf35508145

  • SHA512

    51bc0f3ede02f9793ed04a3e76f222edb2e11059354bf4c0e2d2527d9d71b2f3d5752a8e25dddf2ae07eb9cd0637200afd82bba5912d95e435aa1f9da5e3c597

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpj66BLtldJQgY:i5nkFGMOtEvwDpjn/JQgY

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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\2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-19_8be39f9fbba0598426070ef2440a9eed_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    be82f9631a2e0b4ec210ff7e927f536d

    SHA1

    a53f15ea4580ed27af7270c10ae3dc2faa52acd2

    SHA256

    bded07402d598e81c07fa46703882ed5b5c6dd792601a1ce5d075602f7204f5e

    SHA512

    54f27b2135541e351a41de4a31605b1c9e25e62200df486bec0bfe22731f5d30382ae932b41a81839e2c77b23db5af2d6be6c487f5c6855bd159a5cc07e46d5f

  • memory/2536-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2536-18-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2536-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2916-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2916-2-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/2916-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2916-14-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB