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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/02/2024, 03:38

General

  • Target

    2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe

  • Size

    41KB

  • MD5

    cdfcf68d64c019709076d0e9ccda99c8

  • SHA1

    26303e66e88130a9e5cc231488cfd25df6cbef38

  • SHA256

    f7b62d160827281ac84f5e5c75ec377a352d48a7bbd9ca9c4bd44e8595c3b22f

  • SHA512

    cec20524ff1f19f2c43d23ea7db84a9fbe17f021d370fbbe18230c4ab182a545977d353f78a08448e911fde4ae1514be40902ba5eabd155077b697bf2eebaf7f

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen754XcwxbFqJzRv:bxNrC7kYo1Fxf3s05rwxbFS9

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-23_cdfcf68d64c019709076d0e9ccda99c8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3696
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      PID:1760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    97f0e7ab4041621ae38c2eabf5551223

    SHA1

    976fa1ce8099fc51d76e3bb6e70aefa9778b18c4

    SHA256

    ca62420a41db1edbd19ac9de1b85ab086d14556013f099c9e338e8db2478734e

    SHA512

    af7f346ce238256d81e5ae9267a57ba23a19f7177655b48db9c54d199f356ff47c59b0654a8ae03a8a7369c96b9ac376543d49f7335f7adef602ee06298f6a74

  • memory/1760-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/1760-23-0x0000000002020000-0x0000000002026000-memory.dmp

    Filesize

    24KB

  • memory/3696-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/3696-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/3696-2-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB