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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 16:23

General

  • Target

    2024-01-26_17afd1ee2b81165502ead44310fdd5e0_cryptolocker.exe

  • Size

    41KB

  • MD5

    17afd1ee2b81165502ead44310fdd5e0

  • SHA1

    395edbe186524e8d56cc210b13be27f0151f705c

  • SHA256

    85965502480f30e30bd3249728b4ccb68bded4545cb3dc404a48ac4dda00b157

  • SHA512

    16da1a312664d3ef14086ac3dd444cf3316db064e7ea128c66e94de5017f74908f72f2565da1a3f8ce1ebc0d095a9ea442644b8ee788c78e4456aa6c43871301

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3Kx1:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xk

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-26_17afd1ee2b81165502ead44310fdd5e0_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-26_17afd1ee2b81165502ead44310fdd5e0_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    bab68ca0dde996dedfdf4a39cc68a00a

    SHA1

    43fd6a712cd9bc46b4502f36793a60303f75d912

    SHA256

    ff3feb6305a719862d8991c4b168cdc639ed24e0bcebd2153d96c87c4bab5eb5

    SHA512

    4aba399066357711dc9be1d7b1ae42baf3f6e10af5dfaed08a5b1a6b22c1d38a444cf6d3b3623a7187190f64f4fc2523295627437c68bd38f8a1aa60c76676dc

  • memory/2908-0-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2908-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2908-1-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB