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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/03/2024, 12:48

General

  • Target

    2024-03-25_7e39dc4026906543a589eec03e03e842_cryptolocker.exe

  • Size

    34KB

  • MD5

    7e39dc4026906543a589eec03e03e842

  • SHA1

    34f36cf123cf45eb5b735ac58ad3a6308f14541e

  • SHA256

    763eb1caca66418946b7a073d36c2582369be78e176bd97a7246bfec29889125

  • SHA512

    916119a04f0c60f7df66f341ba01abc074e8a79900f3d3599f068e929901107e074573c4922692fa0eb3f7397c8c5c5897866708bebecc24c76ef8408ee82a02

  • SSDEEP

    384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3qE4kbg8:b7o/2n1TCraU6GD1a4Xt9bRU6zAx

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\2024-03-25_7e39dc4026906543a589eec03e03e842_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-25_7e39dc4026906543a589eec03e03e842_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:432
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      PID:2120

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    34KB

    MD5

    e3ddf393c3fc0fcac6795de0713a99ee

    SHA1

    e806593d9cd8ccb436c80228d11a4194a3bd9e8b

    SHA256

    49a43e6a12ed6cf65a81c190e5e5bf1cf8f749a61b09c2020b54a52b1c1a1143

    SHA512

    efa92e2764728a8da78e67f3524ed1e36d1532140a308bde8eb233fdb59262e2756bbe77d2093e7ae83514c42e7f9a86c6d43e5d494544bc528ea997c295fbf5

  • memory/432-0-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/432-1-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/432-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2120-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB