Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 03:31

General

  • Target

    2024-11-20_80cb402bc1c9bfeaf716158b8a85d605_cryptolocker.exe

  • Size

    72KB

  • MD5

    80cb402bc1c9bfeaf716158b8a85d605

  • SHA1

    b30bae29e97722f78a6ce6e1dc2de92045761306

  • SHA256

    6ec83db60c56545e231bd412f10effbfd088b1224cd1751ba136b06a2ebce57e

  • SHA512

    36d99ce04a28a322fed2ead123a7ae0bb4ca924b86ea7f579681cdb89981021bc3d02698b0815d405364b6e43aec74529235798e20ad386d2d5650f00f0abbd5

  • SSDEEP

    1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9o:C4Q2c94OtEvwDpj4H8z5

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
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-20_80cb402bc1c9bfeaf716158b8a85d605_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_80cb402bc1c9bfeaf716158b8a85d605_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3916
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    72KB

    MD5

    720cb0a4df3af7bdac90e8d0a1777ba5

    SHA1

    4d66d8417bdd8dbb517d902bdf5fe8c2754f7399

    SHA256

    f45c971c89af26a9fd8d838fc8207587332483e14296a00a685566efbabbe83f

    SHA512

    7e22a0b0d0b96678467e4bba3cf93b37586e58678238ccdebfb390c2a9c0f83404b83f40b4b27996f028bfad11a2cf7b9ae673acf25459794a68fcff0396b7b5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2104-19-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/2104-20-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/2104-49-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3916-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3916-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3916-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/3916-3-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/3916-16-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB