Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-01-2024 05:52

General

  • Target

    2024-01-09_3494c087245d07fca8f6947fb7bf17dc_cryptolocker.exe

  • Size

    58KB

  • MD5

    3494c087245d07fca8f6947fb7bf17dc

  • SHA1

    de2e0673a33e955d0c62b24bee23cc11e04bdf03

  • SHA256

    c20a664508176ebe3cd548bc8accd3ada30d8e0e8e48374707c3bbb2a1613fe2

  • SHA512

    78867db9770b181864d813960b038adb137acd2f336bb77fab337c81bcb250855d65b6ac2a423a25f4def0e25460b47f754c42e839607fd81007756ddc9699b4

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjyaLccVCbmMF:V6a+pOtEvwDpjvm

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_3494c087245d07fca8f6947fb7bf17dc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_3494c087245d07fca8f6947fb7bf17dc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4948
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3632

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    58KB

    MD5

    65038a89024974ab37958a4b72bc4a8a

    SHA1

    1bc40535c6c25a0090b79d67230c0232bd7e14ba

    SHA256

    6f6e0bee785a2bb83173a64e1a2bc5d4aff9d35f025d6216c72676c6af9d8903

    SHA512

    1c4dfff0e5fc081d64f28723ae5061ac06a2648e75274a60e6eb5686e8c40b153d639fcecfb3e49dc92f9732921e0782a96397a4a4681bc6d34ca4a70bdf7ffb

  • memory/4948-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4948-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/4948-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB