Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    08-05-2024 15:25

General

  • Target

    2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe

  • Size

    89KB

  • MD5

    8480381a9564ae7c0cbdda15b7182cfe

  • SHA1

    cb25d78cf85d567cc78feab5616ebb93d4d4c2c3

  • SHA256

    bce0547ab83f04674510b345c2ba86efc6a59e784b23b595df1c74dcbecf8730

  • SHA512

    4404f79d11c5b23e2c430e223fb724f8991dd97836fa506885b8bd23d71f48d61227fb2d4af844ab8d47254a301f3397450d1794547e41d0165e555530ee5224

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMy8tyblb:zCsanOtEvwDpjM

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\2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-08_8480381a9564ae7c0cbdda15b7182cfe_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1600
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    17399e809fd60fe6541bf2d5a911a58f

    SHA1

    3c0311b7a5b571d6f7ebce7ca5f20762fa5ef2b6

    SHA256

    2f1e28145d0ca49846f8d3a07e0af38d649f8b156e0820ed6ae15bcdff09e735

    SHA512

    cbfad79204e11384cad6e6263b4442f4fa8ae302a4576d655a0722649d647a8b3c69fd60e250d520b8e498b9ff53d915cee2b961d13f4e9be7bac4e09be3140d

  • memory/1600-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1600-1-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1600-2-0x0000000000350000-0x0000000000356000-memory.dmp

    Filesize

    24KB

  • memory/1600-9-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1600-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1600-12-0x0000000002840000-0x0000000002850000-memory.dmp

    Filesize

    64KB

  • memory/2084-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/2084-26-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2084-19-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/2084-27-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB