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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2024, 13:31

General

  • Target

    2024-01-29_c963a5e8369b978b3cef6ee39e67fa5e_cryptolocker.exe

  • Size

    40KB

  • MD5

    c963a5e8369b978b3cef6ee39e67fa5e

  • SHA1

    153bc7b81847a716008b76df2217c2b51b41b2ad

  • SHA256

    aad7795af4a9c0c9aed5b5fc616a4583f835227f2614d1c376cf911e68f822db

  • SHA512

    c2462e0250256c1cae62f8f7a472a647a2f27c7ec638df6c6b0d7e4ccf4a38867c14b5383a5fbb99a0fdb56f66541af8cdd7d59f8c0f0e8d9a9d537fa62d5a47

  • SSDEEP

    384:e/4wODQkzonAYsju5N/surDQtOOtEvwDpjqIGROqS/Wcz0BVFHxMiBA:79inqyNR/QtOOtEvwDpjBKcmfxMii

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 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\2024-01-29_c963a5e8369b978b3cef6ee39e67fa5e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-29_c963a5e8369b978b3cef6ee39e67fa5e_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2836

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    3a6ae01beb1284dd4f60c3da1ca6d311

    SHA1

    332b6c2f1e1499ed5aed248bbbc8364a1a1de002

    SHA256

    adb50b502e2275ec3f44d76ab4aa35f0ab394f5a4fcbf0444e629b9922f4fa27

    SHA512

    2d691f88f48b4e45f324b631baffcef5cf349a4b3ba86c33e50aa8b4f09255c8897a92c0781e0612c5ed16cb796a9a010bf676edd740a6be95bed7325a1d6af4

  • memory/2024-1-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2024-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2024-2-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB

  • memory/2024-4-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2024-16-0x0000000001DC0000-0x0000000001DCF000-memory.dmp

    Filesize

    60KB

  • memory/2024-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2836-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2836-19-0x00000000003F0000-0x00000000003F6000-memory.dmp

    Filesize

    24KB

  • memory/2836-21-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB