Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/08/2024, 03:21

General

  • Target

    2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe

  • Size

    38KB

  • MD5

    287c48d0448a967cdaf0c4edeb780803

  • SHA1

    20c25c5f831d14ef9097545879a05098ebf24850

  • SHA256

    d1f1ccdc3bbd845f7dd7ed7eba189849081d37092f905a03521d3bf850b655ae

  • SHA512

    e055ea0fccfb453ada051b53ca50c84c7af39abc553be737d38df1640cde0e44d6085cf7691bcf3dec17862f5504a04ec3d7711712ef6df3231351f937421807

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITH:qDdFJy3QMOtEvwDpjjWMl7TH

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 5 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\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-07_287c48d0448a967cdaf0c4edeb780803_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4064
    • 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:4720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    38KB

    MD5

    469b31f8ebfb1326efe1acf76f665948

    SHA1

    6c27ed78721fc2992532e782eb930609db49aeec

    SHA256

    48561ac36b577673a0f8cc1bfabdc92aa893f776ae60d70d32a607cc0cc5041f

    SHA512

    e771cb16c51c779a4ea9c2ff9855ab1744f5a97b6d1855c565f1aa31cf02ee4128c98910f09c152bb6a07e1be0d516c659c92da3c5fdaa2413826cf3ba636a58

  • memory/4064-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4064-2-0x0000000000800000-0x0000000000806000-memory.dmp

    Filesize

    24KB

  • memory/4064-1-0x0000000000800000-0x0000000000806000-memory.dmp

    Filesize

    24KB

  • memory/4064-3-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

  • memory/4064-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4720-21-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4720-27-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4720-19-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4720-28-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB