Analysis

  • max time kernel
    130s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2024, 15:12

General

  • Target
    7e599c6aa3e49cbe46990cf8fd8803cb30e2255a2f21d6a1287e7ee4a2ff9fc3.exe
  • Size 28KB
  • Sample240419-slhd5sfe39
  • SHA256 7e599c6aa3e49cbe46990cf8fd8803cb30e2255a2f21d6a1287e7ee4a2ff9fc3
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • limerat

Attributes
  • aes_key

    NKHUB

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/K6zz3eth

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    svchost.exe

  • main_folder

    Temp

  • pin_spread

    false

  • sub_folder

    \OdlaçddApdad\

  • usb_spread

    true

Extracted

Family
  • limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/K6zz3eth

  • 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 1 IoCs
  • Loads dropped DLL 2 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 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7e599c6aa3e49cbe46990cf8fd8803cb30e2255a2f21d6a1287e7ee4a2ff9fc3.exe
    "C:\Users\Admin\AppData\Local\Temp\7e599c6aa3e49cbe46990cf8fd8803cb30e2255a2f21d6a1287e7ee4a2ff9fc3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\OdlaçddApdad\svchost.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:2568
    • C:\Users\Admin\AppData\Local\Temp\OdlaçddApdad\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\OdlaçddApdad\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2748

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        svchost.exe

        • Path \Users\Admin\AppData\Local\Temp\OdlaçddApdad\svchost.exe
        • Size 28KB
        • SHA256 7e599c6aa3e49cbe46990cf8fd8803cb30e2255a2f21d6a1287e7ee4a2ff9fc3
        • MD5 SHA1 SHA512 SSDEEP

        memory/756-0-0x00000000000D0000-0x00000000000DC000-memory.dmp

        memory/756-1-0x0000000074820000-0x0000000074F0E000-memory.dmp

        memory/756-2-0x0000000000130000-0x000000000013C000-memory.dmp

        memory/756-4-0x0000000004A60000-0x0000000004AA0000-memory.dmp

        memory/756-15-0x0000000074820000-0x0000000074F0E000-memory.dmp

        memory/2748-16-0x0000000074820000-0x0000000074F0E000-memory.dmp

        memory/2748-14-0x0000000000E50000-0x0000000000E5C000-memory.dmp

        memory/2748-17-0x00000000009E0000-0x0000000000A20000-memory.dmp

        memory/2748-18-0x0000000074820000-0x0000000074F0E000-memory.dmp