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Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/07/2024, 04:24

General

  • Target

    2024-07-23_3e901f3032cbdcfec662334babe5ed9d_cryptolocker.exe

  • Size

    61KB

  • MD5

    3e901f3032cbdcfec662334babe5ed9d

  • SHA1

    d43fe4b1ffa943e7c16df322c4d3a943e242afea

  • SHA256

    a4f41a2a0de2d1a36cae77cb9e173d08b55a3021bc722e4d051cd2c850639042

  • SHA512

    7595aec18b9fa8420f832142c262ee5cc2dbe74fd94de1800532e37908b0e74a1661062e71b23e301381a5a25ae352f57f682bd747d21e4df23e5028f68d2c72

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMw:TCjsIOtEvwDpj5HE/OUHnSMX

Score
7/10

Malware Config

Signatures

  • 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-23_3e901f3032cbdcfec662334babe5ed9d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-23_3e901f3032cbdcfec662334babe5ed9d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3680
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    61KB

    MD5

    e3c977b6796b95a5686743732e2931f4

    SHA1

    3d48290e391c08a01f4dc271809e522fae307dfa

    SHA256

    1fe66ce79f639a4d8b8cbe8502077c8d62f47a48e7b9649aeb30ac38fb364654

    SHA512

    e39f092194c9c8adcfe0d99491d69f73f45ca4def044927ab021b9f7ae210ea5fd9d55659c5ceed153f0f7c12a8d66e1064f6b666fd7b5bb5ef12ef755828e94

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3508-19-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3508-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3508-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3680-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3680-1-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/3680-2-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB

  • memory/3680-3-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/3680-16-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB