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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
    06/10/2024, 03:04

General

  • Target

    2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe

  • Size

    75KB

  • MD5

    fc36e9c9de3fb0bea5e0e8c5294eb01d

  • SHA1

    fb3c4aac2a3540a233b15c5827c54d67e43a941e

  • SHA256

    e635554ed2acb52e5aee78057ab523b96533776455bf69487f14c5fc12039ccb

  • SHA512

    584f83169c9d499fd736b46c056452a395782a508c5263863a092c901cd7de1e83ab0b38e096f3fb6054118cc9479ec7e3863a8f259d687c0dd51d23af4dc53b

  • SSDEEP

    768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsrx:u6QFElP6n+gWMOtEvwDpjJGYQbrx

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).

  • 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\2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_fc36e9c9de3fb0bea5e0e8c5294eb01d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4444
    • 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:4484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    589d075818a545e52544447c9bfd18d4

    SHA1

    71514935a2593c4e4ac3e0be16e85dcf3d725728

    SHA256

    37c6973ec39fc9bfbb03728c450019478ed13e3bd92aca8f27ec0173a8aac96b

    SHA512

    f4be3b966d660d592ae839a99b43366e28c29e382e9f0b53e9e45e8a66e9cbabf6c83b898995518d7dff87a5e0491c4e90050f0881428046e79045953cfa1e92

  • memory/4444-0-0x00000000020C0000-0x00000000020C6000-memory.dmp

    Filesize

    24KB

  • memory/4444-1-0x00000000020C0000-0x00000000020C6000-memory.dmp

    Filesize

    24KB

  • memory/4444-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

    Filesize

    24KB

  • memory/4484-18-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4484-17-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB