Analysis

  • max time kernel
    141s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    23/01/2024, 09:56

General

  • Target

    2024-01-23_e9dd4ee54ea4ab333143ffb0a7f5d131_cryptolocker.exe

  • Size

    38KB

  • MD5

    e9dd4ee54ea4ab333143ffb0a7f5d131

  • SHA1

    ba234149f2c412c7760d926b1571284a02db10e0

  • SHA256

    826737508d991da820d8fc076e3960aa219b6ebf071095274bf8e754a4729f29

  • SHA512

    4ef49de7f4b71deab8e1eebc24cc0c8773fcf3cd4ed595829eb4134850f19b3473cdcdce2ddfd9a7fc4c87713fea50f5129cf8f01c97472a8b1ec8ab6df22c18

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRYn:m5nkFNMOtEvwDpjG8hhXyn

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-01-23_e9dd4ee54ea4ab333143ffb0a7f5d131_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-23_e9dd4ee54ea4ab333143ffb0a7f5d131_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    e2eb19f1cc3367e8f2dd38c785c7c217

    SHA1

    d1248eef6b116388d78fa482ec174ad04c9296b1

    SHA256

    c4ac221f8b3225521a71048c29fcbe5f1cb23b01453fc43a956a28eaea4ec396

    SHA512

    87884007b2253b76ab430f86731ddea581ebba3e6e257b0503156d477612cd8f0e89521f56a42817a4615d08e2f231faaf678bfb6faf3b0872f739b88b5fc9c1

  • memory/2228-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2228-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2228-3-0x0000000000200000-0x0000000000206000-memory.dmp

    Filesize

    24KB

  • memory/2228-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

    Filesize

    24KB

  • memory/2228-13-0x0000000001F20000-0x0000000001F2E000-memory.dmp

    Filesize

    56KB

  • memory/2228-15-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2720-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/2720-19-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2720-24-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2720-27-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB