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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/02/2024, 17:55

General

  • Target

    2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe

  • Size

    102KB

  • MD5

    932647fa968bed1ad446a5477b57b056

  • SHA1

    bd36fea153e41332ce1af1ad4e072f86bd04fca6

  • SHA256

    903575b4fd53a1dc493d01314c7648eeaf17fbaaf6bda146cf423c4a6baef532

  • SHA512

    cbccc5387e05dee0bf2433a32de94ae8421a78a9074f7682b7091eef243c80102a63a56d4f83cae9ff550993197ef7136f046a8e549d917d844762f456bd93bc

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJHlv/k2NMb5:xj+VGMOtEvwDpjubwQEIiVmkxv/m5

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-18_932647fa968bed1ad446a5477b57b056_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    102KB

    MD5

    e77b66212bf81307fe6ea703d0473536

    SHA1

    6731b3daead9cc86be227a6abfaed3595bf29d6d

    SHA256

    c9a6adb38af0588004abbe66591d5a0dd635be9dd9b61705eb0c826989f4f0e6

    SHA512

    180461ffd29c48dd451f01388c9490e187cee9082f057cd817edc77f65e615a44f1de2084dfafdf1ff95524b0a5783c5bee97cec41b9dc3aea793846a51cf403

  • memory/640-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/640-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/640-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/640-3-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/640-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3812-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/3812-20-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3812-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB