Analysis

  • max time kernel
    148s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/01/2024, 05:58

General

  • Target

    2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe

  • Size

    71KB

  • MD5

    9f48f2bc9be2bc4625e6246739baaaa5

  • SHA1

    aa459208da17450b0c57bb90401506d1c527b1b8

  • SHA256

    d5aca94dba5eb185a202b48731d97d4179c77fcd16846111fd93f226b5c3570a

  • SHA512

    eaf6daa7507aa4e83212819a21ab9bc177dcbf5c027ce20f3eebec0c170fea13a694a9493c1150ea636f5b89bd54774d3cc1d404701846725bd7705f84c65b79

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx16:X6a+SOtEvwDpjBZYvQd26

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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_9f48f2bc9be2bc4625e6246739baaaa5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3272

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2656-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

          Filesize

          24KB

        • memory/2656-1-0x0000000000830000-0x0000000000836000-memory.dmp

          Filesize

          24KB

        • memory/2656-0-0x0000000000830000-0x0000000000836000-memory.dmp

          Filesize

          24KB

        • memory/3272-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/3272-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB