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Analysis

  • max time kernel
    122s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2024, 04:27

General

  • Target

    2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe

  • Size

    63KB

  • MD5

    0a9f55e398b19890686f3bbfac179185

  • SHA1

    dc6eda0206d00e9248065ceaec07eb52a433ab4f

  • SHA256

    17a5c5c9b2436b591a708a417a08f779a6478a4933c1711fc9c96daa57e4c302

  • SHA512

    17be0d0bfebcf9b2ebdae5aa6fbdd6460a3b415b5f62745df0387a6d92f33dfdba819b4d46dcb7887ca41387451287927ec95645a9fcfd490c96a5d3b079a51b

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVV:ZVxkGOtEvwDpjcawv

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 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\2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1448
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:2564

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    6c8ab1d43580c8f2ae90f04441526c00

    SHA1

    279f2954b53e0d70dc1e4e9927eeaa8ef28eda97

    SHA256

    8ab31256a0e90f81a0ffd32b21d95c0b74c599760dfd0c07ce0a75561b148c5f

    SHA512

    c82debbd8e76bb28b7bfc4c1f642299a66c2edc840ea9b1d24cb139258987410e24216ae0bd5a7eb81b71ea9ba740af7d2f115d6b74bd86c017bfe3499574e29

  • memory/1448-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1448-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/1448-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/1448-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/1448-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2564-17-0x00000000004F0000-0x00000000004F3000-memory.dmp

    Filesize

    12KB

  • memory/2564-22-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2564-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB