Analysis

  • max time kernel
    147s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2024 03:37

General

  • Target

    2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe

  • Size

    96KB

  • MD5

    9147a34077978e757b205f07da6cf9b8

  • SHA1

    b00d08481dab46643e5796fd863749e620641b92

  • SHA256

    1ca27f6d165efb699ff1bf744eb05c9ee1f7406e88aa1b77f0eeb91110bfc408

  • SHA512

    b3f2c34e59f4df5754b628ae75e989fc6a97bb505e5701dd0d2e26ca1582e16631dc1ce4697ea21daca2d36e82ac9f7d55c89a44c04f6f0e87d7b80e2b99463f

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRDjgx/kO+:zCsanOtEvwDpjB8

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\2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_9147a34077978e757b205f07da6cf9b8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1992
    • 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:4796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    96KB

    MD5

    631569866c7b822bf2b261b371dc5330

    SHA1

    b940af585d81f48fb18416579f947c38825e7c2d

    SHA256

    9695ff385ebec5fa33f358a1c665d5965b344b9b346ab26ecd3f48022606859b

    SHA512

    4b10793d10858c397b8bf6aa58a33c12c91779f47f8cafb2c1121242545c95652b5664aab9e397ff574a54729bf22827e7a8b069a725d1d03853b41d82955fdc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1992-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/1992-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1992-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/1992-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/1992-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4796-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/4796-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4796-46-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB