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Analysis

  • max time kernel
    148s
  • 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
    20/02/2024, 05:52

General

  • Target

    2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe

  • Size

    76KB

  • MD5

    6fc5eccc3c6483934f067f892655b093

  • SHA1

    c81edaed33e5705e13cc75295a7bc8707fdd0a3c

  • SHA256

    f800fcd49a40999384cfd205c4552a90a418e8ad626e90b3100438926a1fd1c2

  • SHA512

    473958b523ab26175de09a785b5f456ef7a6b392c29d5f2fb4a2dad483c45191f8b80a693e5e7e3a86aa5b51dc68cac50209420cb4ff676e42bbdf735423fb43

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KuA5A:ZVxkGOtEvwDpjcaf

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\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-20_6fc5eccc3c6483934f067f892655b093_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4460
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4280

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    76KB

    MD5

    dae138536d7de9857e2cc487e4135bb6

    SHA1

    080e2c8776332bd77005f31857a96c42af1f4f7d

    SHA256

    c7b9bad52a4550881df0bf3ccde8c75524a7de469b6a50cd561b4e557e5c65e9

    SHA512

    165418a025cfde61ea83891b1de4f44265209396617a88dd46012c7a3b74adad845b320a1b6c333f24ea2d1f419986f3538e14b92a0d52f9e7e02a8efcbe101c

  • memory/4280-18-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4280-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4280-22-0x0000000000570000-0x0000000000576000-memory.dmp

    Filesize

    24KB

  • memory/4280-27-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4460-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4460-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4460-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/4460-3-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/4460-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB