Analysis

  • max time kernel
    131s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-10-2024 08:09

General

  • Target

    2024-10-31_ead71cc39b9da89b211f21635df5743f_cryptolocker.exe

  • Size

    63KB

  • MD5

    ead71cc39b9da89b211f21635df5743f

  • SHA1

    41385b0551dc5f624537b194740de324fac58c76

  • SHA256

    fefc609d1bbc9db698deaa466aef8fee9e0c827d2ae3b49f6d0337a5d563233c

  • SHA512

    11976d376903fe9dc531ef635eaee38d54676e042eb57c52383d0e453ed04a36f90b580dd5d7184165ff203a09c3f6619449f6e7f1effcc6dd019ac45185031a

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMNuSA:TCjsIOtEvwDpj5HE/OUHnSMZn

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\2024-10-31_ead71cc39b9da89b211f21635df5743f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_ead71cc39b9da89b211f21635df5743f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3092
    • 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:216

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    091abf53e0ce92883384c7e28994be84

    SHA1

    e65cb77f55239d0fb409633f5aa380ed2a4e1f73

    SHA256

    b8df5189b3415cef3ddc166fdf83d3577f703d357321152eebf74ad3b2237dd1

    SHA512

    4a41c168ab252bc9e02f76b9d7706949b4df97ebe9d9db5f5f75414d4b2b84d827834b86a13d98c3df63fe5176c2516d76866df834e1937578a5f5c07cf6b78d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/216-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/216-19-0x0000000002100000-0x0000000002106000-memory.dmp

    Filesize

    24KB

  • memory/216-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3092-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3092-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3092-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/3092-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3092-18-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB