Analysis

  • max time kernel
    310s
  • max time network
    405s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-11-2022 15:05

General

  • Target

    bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe

  • Size

    238KB

  • MD5

    440d7a7357b48507cbf9857064638dfd

  • SHA1

    fbf4d41cc343cb260d0c320ade3c1271959d6eba

  • SHA256

    bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3

  • SHA512

    ee709aa46f4506aa1ce26d0edcdbf9241749ed154e1a8ab2976b691f95469c8cdef168d59ad27773506e433debb0a28550f113f6bb5b7e1e12c994fcd2aa875c

  • SSDEEP

    3072:zTZ5rlD8r5Yg3g7xnyfKUze1zF9Olhc7tmtpsJpQuTejgu3nypr/7Rioqz5HKd/z:zTyYg3AnySQcWlqi1ERio6q2U

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    IRj3SceatjDfweW/qMMw7g==

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/p8Be8nNX

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Windows Update.exe

  • main_folder

    UserProfile

  • pin_spread

    false

  • sub_folder

    \Windows\

  • usb_spread

    false

Signatures

  • LimeRAT

    Simple yet powerful RAT for Windows machines written in .NET.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
    "C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe
      "C:\Users\Admin\AppData\Local\Temp\bf5ef36eb0ab0ecb25d80207e730177d07961df7b8266167074ddbc3baf5bcb3.exe"
      2⤵
        PID:4480

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2312-132-0x0000000000500000-0x0000000000542000-memory.dmp

      Filesize

      264KB

    • memory/4480-134-0x0000000000400000-0x000000000040C000-memory.dmp

      Filesize

      48KB

    • memory/4480-135-0x0000000005370000-0x000000000540C000-memory.dmp

      Filesize

      624KB

    • memory/4480-136-0x0000000005410000-0x0000000005476000-memory.dmp

      Filesize

      408KB