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Analysis

  • max time kernel
    149s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 21:57

General

  • Target

    2024-04-17_cafa1b722bfc9c0eadc65c74c8b257c7_cryptolocker.exe

  • Size

    65KB

  • MD5

    cafa1b722bfc9c0eadc65c74c8b257c7

  • SHA1

    bb398c31ef863c493ab86d598506716dc105bcfd

  • SHA256

    dbdc678e85a82abe7ba952b49c4762481a3131a44f2098a47021fda7657f1009

  • SHA512

    9b7c457f8a6da3d8275968bfa6e574c916427080223359d897c9ca0b7357e4826ccd2af1fac9e01acbb0a395912bce81a2c733748d9cf7fcf0b2f4b8d9b15455

  • SSDEEP

    768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5kJ7AK2R:zj+soPSMOtEvwDpj4kpmeLmQlAlR

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 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\2024-04-17_cafa1b722bfc9c0eadc65c74c8b257c7_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-17_cafa1b722bfc9c0eadc65c74c8b257c7_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2980

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    65KB

    MD5

    f8981b8d63e0b03988109f0678c0b87e

    SHA1

    6e1f2d025bdbe0671087f90ca8a9027025170a48

    SHA256

    705fe0bebe159caf63a8ae6d4b4f264e87a38a04ee77cf70cbe86fb08660b5d8

    SHA512

    0eee3246c14bce8c02d15f9d18ac372a542a9544d224739d550ba3ab4b44e38547522071fe6fd8de3fb8f45c45c2be6383a0e52756847aa5144a65cd39306f67

  • memory/1800-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1800-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1800-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1800-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1800-15-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1800-13-0x0000000000580000-0x0000000000590000-memory.dmp

    Filesize

    64KB

  • memory/2980-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2980-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2980-19-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/2980-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB