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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    24/01/2024, 04:42

General

  • Target

    2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe

  • Size

    38KB

  • MD5

    5786ecd4209f408cc88f091e46f8e9bc

  • SHA1

    0f0bed354c391a74fd789db5c28a787c6a65bb2b

  • SHA256

    4ee6b60582fa255596cc51887bd68557371e08ae68dbed62b8a41b951ff538b2

  • SHA512

    e27690b1fc2ade70d73cbe952ddbdb6eacb1c07132e63c3e290ab07c5713921bf90fafb41ef3c437d915b05f24b6cdc4dfe8250cfc67b1fcbd305d32835086ce

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqhMxyqf:6j+1NMOtEvwDpjrfX

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 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\2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-24_5786ecd4209f408cc88f091e46f8e9bc_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    39KB

    MD5

    4e260b4744bf517f218405318ff296ad

    SHA1

    1f7f6cf6b51b31b657d3da756141fee4f5cf7b52

    SHA256

    44c1e42fb831fd44c996f07d2426cfd86c481fde246fe0a947077701aba247cc

    SHA512

    383ba0af01459cc54932eaba5cffa1b01bd20b2ad6f9ad1e1c239fd4431dde446df09478d6bcb94fe10a330f5504e546a94ce1e7a3cfd2f17ded88db96d30fca

  • memory/2364-1-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2364-0-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2364-3-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/2364-2-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/2364-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3000-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3000-18-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/3000-25-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB