Analysis

  • max time kernel
    138s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 19:45

General

  • Target

    2024-05-23_f1e5b2025a0aba614bcd0f1fd726d4b6_cryptolocker.exe

  • Size

    67KB

  • MD5

    f1e5b2025a0aba614bcd0f1fd726d4b6

  • SHA1

    1cf9920b03a4c0b484b0e20c5804836ea32316a2

  • SHA256

    07e772d11e86fa19cdbd24a2208435270231d54bf729235450006210b379b0f6

  • SHA512

    864653a9796d44db39e6c8765890ad8ce0c0f1f757ba0f583643564b6bef1fce6ec020c90880f8ad8681de90fcda96f29b0b978418b99630da7e77223c62ce0f

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyePE:TCjsIOtEvwDpj5HE/OUHnSMYu

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 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\2024-05-23_f1e5b2025a0aba614bcd0f1fd726d4b6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-23_f1e5b2025a0aba614bcd0f1fd726d4b6_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1316
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    5a8550930e53e33680a3e8a596c4d390

    SHA1

    5b50432b808f467ec084bd22ea310b9525c4d9a2

    SHA256

    cb22b5709af744b2a8e538a5be3fd4677121d2c91a6aa0b76706bdc928cfecae

    SHA512

    3ec8016616c7fc208269f6121ef701667b57bd9b13ad9741aa36085a0a66a0323866dca7ac98b2bb28d7b02c0d611540d50d7c9fd30d19bf916e50a0acd5e74e

  • memory/1316-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1316-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1316-2-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/1316-9-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1316-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1412-19-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/1412-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/1412-26-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB