Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/01/2024, 20:31

General

  • Target

    2024-01-28_7b618fe40e5a5a4970d47d96e97e06c1_cryptolocker.exe

  • Size

    104KB

  • MD5

    7b618fe40e5a5a4970d47d96e97e06c1

  • SHA1

    ab2fd5a4868c6fab70a90eb91ae50317de2a57fb

  • SHA256

    c69b5379d3b9aa80fe171060f03d36bbc7feeb03358e1a3cd4474061fb3c3d86

  • SHA512

    11c2b1687c3515428cd04b130277f3dbbe8489d7c29fdf378131d2454747b9d4547005169977ab366c9d62f6ce66b664794f99cef9997d8e7c9584656c357f9e

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWjy9g:xj+VGMOtEvwDpjubwQEIikug

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\2024-01-28_7b618fe40e5a5a4970d47d96e97e06c1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-28_7b618fe40e5a5a4970d47d96e97e06c1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    104KB

    MD5

    3a4fa04b74ab8966fe859071fa3b78dc

    SHA1

    bb8300f9eed6d9143166cedf8b9818f6b5cab89c

    SHA256

    7cd8b67abfe2543f32ba78bd691e6edc54cbf4b40a5d1f5782b5f8e7e5715bc6

    SHA512

    3b24a0d98839f577422cf07b79cc2b28ee142d7e2b51ad466b0bf76b31469b3c48a45f6a18d529d7fde630d43313a8a0cc31c87d096fd50df6b1191c3aaaae3a

  • memory/2132-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2132-1-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/2132-2-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2132-3-0x0000000000330000-0x0000000000336000-memory.dmp

    Filesize

    24KB

  • memory/2132-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2132-16-0x00000000025C0000-0x00000000025D0000-memory.dmp

    Filesize

    64KB

  • memory/2132-27-0x00000000025C0000-0x00000000025D0000-memory.dmp

    Filesize

    64KB

  • memory/2364-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2364-19-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/2364-21-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2364-28-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB