Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-06-2024 07:39

General

  • Target

    89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe

  • Size

    28KB

  • MD5

    89c668f0c43d38409f518621725f71c5

  • SHA1

    4b6b055e362cc3563b9dabac32af9ae5e0a97bb0

  • SHA256

    ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281

  • SHA512

    65c5d20ec7726a165a8a772b5f0c016c12cb34f96bb5f9026eed9b04d8e82c270d347095efbfd4e67be96269efa78494abc3cadd7678b22e56dfcd8b9a7436cd

  • SSDEEP

    384:7B+Sbj6NKcy4506XbAHDM/VqDhBXsk6IvDKNrCeJE3WNgMNyHVfRUfswQro3lc1C:lpcy4G6XbwDZBXsBG45N1yHp7amuj

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    yes

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/LzVZn2Aw

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Windows Security Health Service.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \WindowsSecurityHealthService\

  • usb_spread

    false

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/LzVZn2Aw

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\89c668f0c43d38409f518621725f71c5_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:4108
    • C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe
      "C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4368

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\WindowsSecurityHealthService\Windows Security Health Service.exe

    Filesize

    28KB

    MD5

    89c668f0c43d38409f518621725f71c5

    SHA1

    4b6b055e362cc3563b9dabac32af9ae5e0a97bb0

    SHA256

    ec344326d43881d1fbf9fe5d63519fb3d8f345e966da5e417682763e37f75281

    SHA512

    65c5d20ec7726a165a8a772b5f0c016c12cb34f96bb5f9026eed9b04d8e82c270d347095efbfd4e67be96269efa78494abc3cadd7678b22e56dfcd8b9a7436cd

  • memory/3256-0-0x000000007453E000-0x000000007453F000-memory.dmp

    Filesize

    4KB

  • memory/3256-1-0x0000000000C50000-0x0000000000C5C000-memory.dmp

    Filesize

    48KB

  • memory/3256-2-0x0000000005630000-0x00000000056CC000-memory.dmp

    Filesize

    624KB

  • memory/3256-3-0x0000000005590000-0x00000000055F6000-memory.dmp

    Filesize

    408KB

  • memory/3256-4-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/3256-5-0x00000000062A0000-0x0000000006844000-memory.dmp

    Filesize

    5.6MB

  • memory/3256-15-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4368-16-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4368-17-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4368-18-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB

  • memory/4368-19-0x0000000074530000-0x0000000074CE0000-memory.dmp

    Filesize

    7.7MB