Analysis

  • max time kernel
    138s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2024 19:44

General

  • Target

    a3e1ee0eaca1c17b5c1956bd09d198b0_JaffaCakes118.exe

  • Size

    332KB

  • MD5

    a3e1ee0eaca1c17b5c1956bd09d198b0

  • SHA1

    840f647a39d9d520441ebc4d8f58e215fbcafcd3

  • SHA256

    98bd317536a3897e12a06396535593e6df8d2bef351f0f4e4f248e71c26cbbc7

  • SHA512

    189bbf227ef0886d2a2154f9effa76882024ba5a21f2fbdcbb90dce28473e77a216e9a0a509c221c7add03be36f835819fc710128fe03d5f828638702294f59e

  • SSDEEP

    6144:rP0d79h8N+c8ruZNX0d8vHDOCELIu/Q7gQQBjsj6tD4IA4T1qR:ro9CF+SNXUAHkP/SPQBjsrm1

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

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/p8Be8nNX

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3e1ee0eaca1c17b5c1956bd09d198b0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a3e1ee0eaca1c17b5c1956bd09d198b0_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2064
    • C:\Users\Admin\AppData\Local\Temp\a3e1ee0eaca1c17b5c1956bd09d198b0_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\a3e1ee0eaca1c17b5c1956bd09d198b0_JaffaCakes118.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\Windows\Windows Update.exe'"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2740
      • C:\Users\Admin\Windows\Windows Update.exe
        "C:\Users\Admin\Windows\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2776
        • C:\Users\Admin\Windows\Windows Update.exe
          "C:\Users\Admin\Windows\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\Windows\Windows Update.exe

    Filesize

    332KB

    MD5

    a3e1ee0eaca1c17b5c1956bd09d198b0

    SHA1

    840f647a39d9d520441ebc4d8f58e215fbcafcd3

    SHA256

    98bd317536a3897e12a06396535593e6df8d2bef351f0f4e4f248e71c26cbbc7

    SHA512

    189bbf227ef0886d2a2154f9effa76882024ba5a21f2fbdcbb90dce28473e77a216e9a0a509c221c7add03be36f835819fc710128fe03d5f828638702294f59e

  • memory/2036-39-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2064-21-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2064-1-0x0000000000130000-0x000000000018A000-memory.dmp

    Filesize

    360KB

  • memory/2064-2-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2064-4-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2064-3-0x00000000002B0000-0x00000000002B8000-memory.dmp

    Filesize

    32KB

  • memory/2064-0-0x0000000073FAE000-0x0000000073FAF000-memory.dmp

    Filesize

    4KB

  • memory/2160-15-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-18-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-22-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2160-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2160-9-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-7-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-5-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-24-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2160-20-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-14-0x0000000000090000-0x000000000009C000-memory.dmp

    Filesize

    48KB

  • memory/2160-48-0x0000000073FA0000-0x000000007468E000-memory.dmp

    Filesize

    6.9MB

  • memory/2776-31-0x0000000000290000-0x00000000002EA000-memory.dmp

    Filesize

    360KB