Analysis

  • max time kernel
    144s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    04/06/2022, 13:15

General

  • Target
    102c40347d336ac6d2a49d957243d25040b6970fd54c0fb9e424c491317ce282.exe
  • Size 477KB
  • Sample220604-qg979aggc6
  • SHA256 102c40347d336ac6d2a49d957243d25040b6970fd54c0fb9e424c491317ce282
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Family
  • limerat

Wallets
  • 1JBKLGyE6AnRGvk92A8x3m8qmXfh3fcEty

Attributes
  • aes_key

    nulled

  • antivm

    true

  • c2_url

    https://pastebin.com/raw/cXuQ0V20

  • delay

    33

  • download_payload

    false

  • install

    false

  • install_name

    Winservices.exe

  • main_folder

    AppData

  • pin_spread

    false

  • sub_folder

    \Services\

  • usb_spread

    true

Signatures

  • LimeRAT

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

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops startup file 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\102c40347d336ac6d2a49d957243d25040b6970fd54c0fb9e424c491317ce282.exe
    "C:\Users\Admin\AppData\Local\Temp\102c40347d336ac6d2a49d957243d25040b6970fd54c0fb9e424c491317ce282.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetThreadContext
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4904
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Maps connected drives based on registry
      • Suspicious use of AdjustPrivilegeToken
      PID:5056

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/4904-130-0x0000000000150000-0x000000000026B000-memory.dmp

        memory/4904-136-0x0000000000150000-0x000000000026B000-memory.dmp

        memory/5056-132-0x0000000000400000-0x000000000040C000-memory.dmp

        memory/5056-137-0x0000000074ED0000-0x0000000075481000-memory.dmp

        memory/5056-138-0x0000000073760000-0x0000000074260000-memory.dmp

        memory/5056-139-0x0000000072FB0000-0x0000000073758000-memory.dmp

        memory/5056-140-0x0000000074ED0000-0x0000000075481000-memory.dmp