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
    10/11/2024, 06:54

General

  • Target

    2024-11-10_f41e7fdc67c790ad153b34139919681a_cryptolocker.exe

  • Size

    96KB

  • MD5

    f41e7fdc67c790ad153b34139919681a

  • SHA1

    cf057b5bc50d1dd42c7da435867d34e966cd8416

  • SHA256

    648c3627d2187bdcf2995c98cd147b2640783aa61860526c09691f93da570541

  • SHA512

    7183104f1da570fed5084cbdb9c316d0133db8f90893f66be3dfcdfbdd8bddba566c285aff565afa7f01e94f38750951bc29f856b44e8da825be6503028c1e8b

  • SSDEEP

    1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp0+Yq:AnBdOOtEvwDpj6z4

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-10_f41e7fdc67c790ad153b34139919681a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-10_f41e7fdc67c790ad153b34139919681a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    97KB

    MD5

    0dbdc511560bf70aa445cd75c509a997

    SHA1

    b759fa5ee54fc7ef034ff05ccce828a6665d3c48

    SHA256

    cc5c1ac4f7c56ba731d60edf4cebea65978b6e7cda224765916622bdd96d546a

    SHA512

    080c0e0fee2b316a346d73129baeeb44c16ffc85719c36748e91bad781388f1bb07f4b48c077102d1422a198cdf24d100a21f4a7dc6d4c0edf3b3c8e027915a1

  • memory/2424-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2424-1-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/2424-2-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/2424-3-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/2424-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4828-20-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/4828-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4828-27-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB