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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25/05/2024, 20:09

General

  • Target

    2024-05-25_311a843c152f46615ddc8aeff4836ce9_cryptolocker.exe

  • Size

    52KB

  • MD5

    311a843c152f46615ddc8aeff4836ce9

  • SHA1

    08eef5f13e66db5035f45c59512162f6d3046193

  • SHA256

    989da34b64eea87c2295d8b3b87ad6300bfc7daf9c646721ee8240517eb801a6

  • SHA512

    7621b0321bded4a909c974a9c602fa7e781ae87a61543d221ed56b29cbcde51b27f6128d0f33f07d68a8b50303941cb3d5e5375b6ce2fdcd3ae3d7e9a2c86f2b

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CS4Gj3:bgGYcA/53GAA6y37Q6dI+d5QGT

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-25_311a843c152f46615ddc8aeff4836ce9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-25_311a843c152f46615ddc8aeff4836ce9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    53KB

    MD5

    b9311143b6b71f062e218aa787e903be

    SHA1

    78c2ca50013318601d1436858a50fdd4acc34cc9

    SHA256

    1a5ad04bacc0111658f9302879d9882f6f09772ad898bc25c5de7fdcd41ce977

    SHA512

    b62e3aec4eeb8adef5e0e874c917c1fd2a1c9de094f268b84a08084fc546772ce7bc83d170b73e4bd7b71e71c4a595314cabdad7ad452d6e629ecf14070d146b

  • memory/2316-1-0x0000000002D00000-0x0000000002D06000-memory.dmp

    Filesize

    24KB

  • memory/2316-8-0x0000000000780000-0x0000000000786000-memory.dmp

    Filesize

    24KB

  • memory/2316-0-0x0000000000780000-0x0000000000786000-memory.dmp

    Filesize

    24KB

  • memory/2480-15-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB

  • memory/2480-22-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB