Analysis

  • max time kernel
    153s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 12:16

General

  • Target

    2024-01-06_c6a98db9ae78bc264e96e041ec09e2b5_cryptolocker.exe

  • Size

    38KB

  • MD5

    c6a98db9ae78bc264e96e041ec09e2b5

  • SHA1

    0d997f866ecb3635207b6114e91a192754f7d6dd

  • SHA256

    242fb968e738eb2561cb78f3272a50a5f9ba2fd4d3f38115a6f68a5aa08a3195

  • SHA512

    a897e8ba31dd9c47470954063286942a36a0e5df97b54a533d2670f59b6dbf5658d8c75fa61c81caff4a982cc28ae6057a0b32b2a4d39971101bb9cd4b6e5430

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDDw3sCu5uwSpo:bgGYcA/53GADw8CvS

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\2024-01-06_c6a98db9ae78bc264e96e041ec09e2b5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-06_c6a98db9ae78bc264e96e041ec09e2b5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4732
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    fcab4932f19a53ab0f9236efcf51a0ea

    SHA1

    a060172aa9533ed6c4de4cc59e898cfd4b68854a

    SHA256

    717841cabbbe00d0a2b78cf7d29eda26c62e0df7c608e6d0eb613b8ed956bbcb

    SHA512

    e2852494f6effcdaa29099db116b8c9bad9ba9bbef4bd4fd7e779e721aca37540eec93f64dc62813d7791d2887f6c85472a65f65d8fcc0b87ab53d2409ae649d

  • memory/2996-17-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

    Filesize

    24KB

  • memory/2996-18-0x0000000002000000-0x0000000002006000-memory.dmp

    Filesize

    24KB

  • memory/4732-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/4732-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/4732-2-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB