Analysis

  • max time kernel
    134s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 01:45

General

  • Target

    2024-08-25_1629da29b746da257d5ead8cc6cfe330_cryptolocker.exe

  • Size

    77KB

  • MD5

    1629da29b746da257d5ead8cc6cfe330

  • SHA1

    b827cb10eb962a7d43f32b3f813bac882b75a34d

  • SHA256

    bc8b14e1518951365be990597990ec209d9b1c9fd605b899ccb805ed8c43a795

  • SHA512

    b9edcebf0c944db1e50ffb298da0afe27711431ff97ec1bc5a0782a290b069de7b79840899d5632202dd4b2d4bd2d210fbffe8d9b6c5f9303705bd596bf5bd48

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUS:ZVxkGOtEvwDpjcaO

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).

  • 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\2024-08-25_1629da29b746da257d5ead8cc6cfe330_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_1629da29b746da257d5ead8cc6cfe330_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3288
    • 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:4420

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    78KB

    MD5

    872e28c9b5cd0a68486744093f91ef59

    SHA1

    3ae3a36865396fcc69345bc3525ad093cb35f131

    SHA256

    a3e452e35d70093e32b4e4af86bb800cda574349b2a1bc732cec570788b74791

    SHA512

    1afbef1a9a8a672d652c1d3ced57c090fac228a202c5ba5dd7694d78a9fbb761e184f9fadfb8719356bad67bc916b8a1a462ba8721aa893559b2a4f42843f0c5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3288-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3288-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3288-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3288-3-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/3288-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4420-19-0x0000000001F80000-0x0000000001F86000-memory.dmp

    Filesize

    24KB

  • memory/4420-25-0x0000000001F60000-0x0000000001F66000-memory.dmp

    Filesize

    24KB