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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 20:05

General

  • Target

    2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe

  • Size

    75KB

  • MD5

    bc0e5e60a5c00404f13de8803b0afdfe

  • SHA1

    2b06af060b32d99d66ebf437ca4b9fde6e82a060

  • SHA256

    74c84fd48eb2753f57b18f4fe6187cc14ca22e64ce0b93e26cac6c4e8961f9be

  • SHA512

    b057030dd61230854a99d63e95b1cc8eefe79f7d8dfaf68322cd39eeb79888be1cb401bd2883afecfe5b9318607907cbbfadd1e6ff1a50b7a842bc4a7f121876

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9Vq:C4Q2c94OtEvwDpj4H8zV

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_bc0e5e60a5c00404f13de8803b0afdfe_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    45a2247700efb44573e8008752baf19c

    SHA1

    600047775734039ba32556e435db08df779c3295

    SHA256

    cd176511933a9cdb1dcbe430f07f91e63dbfe5767e275948715a6ef26073a1d5

    SHA512

    744e44d85e4af3044d6ccec9627f69c02c1391f023360891e1097a24765d5d96b7d00f889ce6b32754ac187981702741d161543c60d44888ca3a933d6b9b83f0

  • memory/1712-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1712-1-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1712-3-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1712-2-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1712-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3004-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3004-19-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB

  • memory/3004-26-0x0000000000420000-0x0000000000426000-memory.dmp

    Filesize

    24KB

  • memory/3004-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB