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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/10/2024, 03:33

General

  • Target

    2024-10-14_5ea815ac1756fa403f7698078b25b7e7_cryptolocker.exe

  • Size

    81KB

  • MD5

    5ea815ac1756fa403f7698078b25b7e7

  • SHA1

    ec8e60e94d57c5ef2510e2e8a268bacb994a61f5

  • SHA256

    6150501ef9710928f296e8a812c2c850cd5c55846536bccbb6c1901aee864875

  • SHA512

    ca8154595faed44545d9ac2d70f75e10637997ecb998a318e00390573c1dd1369069c03f0e820c1f87a1f5016cd63a46115d0de76ccaf090c1eacec5a0f3b339

  • SSDEEP

    1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUOA+YSafiPuqds:T6a+rdOOtEvwDpjNc9

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 4 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\2024-10-14_5ea815ac1756fa403f7698078b25b7e7_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-14_5ea815ac1756fa403f7698078b25b7e7_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4716
    • 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:1440

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    81KB

    MD5

    d3d4e35b044da7ac255bf898eda58071

    SHA1

    a4f17bcee6a702fcb8f86b48d87ee4a49004be2e

    SHA256

    72996c7f332196cb0b8bcf7086eb643e2128f2e3c81da23de54eba6566c6e6d7

    SHA512

    8e9bf6286492a37efe5bfb758503bf374b544d03c0ced1e2bbcd449d7112ee484b18e410966b369a5806cab74c2b5b090d49b9cb2fe342daf5514e52688016e8

  • memory/1440-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1440-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1440-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4716-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4716-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/4716-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/4716-3-0x0000000000540000-0x0000000000546000-memory.dmp

    Filesize

    24KB

  • memory/4716-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB