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Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/02/2024, 19:28

General

  • Target

    2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe

  • Size

    52KB

  • MD5

    21776d01863746356ed49886706dbe24

  • SHA1

    68c183c06b4255ad7a1d03d2c32a752f5da0d5f4

  • SHA256

    1a18a891e8d7d2b5e6f51c4eba25a3ab78a4e688f85aecfeb84392b3c589da16

  • SHA512

    e940a1cfe4e14aa7383e47ea0a4496faeb0a7ffb0874a17bbeefe73941cf5ed2af52876012e6bf0c27bcb79cf7e369a8132a85dfad86ab610b6cd69bda532c3b

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdO5Sk:ZVxkGOtEvwDpjcr

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\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-22_21776d01863746356ed49886706dbe24_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4380
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    52KB

    MD5

    997b9211eb6a6ddaa9458bc49a3bfe1f

    SHA1

    d22ecf3edc976a7b3a477164314e5503e8215e95

    SHA256

    87530047ffad3b2f53373f337026710d2200e82b60fc652d876970dbe304bc2f

    SHA512

    7f3312f9c2685c7cc8d030340bca2a78a8c4cbb057aa320ab9f8f91bf11bc5090d419e11ab0a6740c95ee11254f09aa53c44b29e44b754651459030e7bec9d38

  • memory/3612-19-0x0000000000440000-0x0000000000480000-memory.dmp

    Filesize

    256KB

  • memory/3612-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/3612-22-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/3612-27-0x0000000000440000-0x0000000000480000-memory.dmp

    Filesize

    256KB

  • memory/4380-0-0x00000000004D0000-0x00000000004D3000-memory.dmp

    Filesize

    12KB

  • memory/4380-1-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/4380-2-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB

  • memory/4380-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

    Filesize

    24KB

  • memory/4380-17-0x00000000004D0000-0x00000000004D3000-memory.dmp

    Filesize

    12KB