Analysis

  • max time kernel
    148s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-05-2024 01:35

General

  • Target

    a7b1c2a715bb2f2a6358825f341bcd9e3db00164f44afae1a1e8538ebfdf3a9f.exe

  • Size

    126KB

  • MD5

    08bae97aa3ca7a364e6bbe2aa6e8b8b6

  • SHA1

    f6b7179fa8cc6a3b062c8c7b5a914c5b8f6e0312

  • SHA256

    a7b1c2a715bb2f2a6358825f341bcd9e3db00164f44afae1a1e8538ebfdf3a9f

  • SHA512

    ba47cc9c514627386f1f4d202b46ef182ec332db6183f4e8f5474bd13e491d91a5f7a7ee272d1d647f98ae55e553a60229100ba645c60c2e5c87b973aaf5c5a1

  • SSDEEP

    3072:uewtvfrOPCNBz65/M6If+3Js+3JFkKeTn:RaqCxBt25

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    Jesus

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/6bPeUTd1

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Plugin.exe

  • main_folder

    Temp

  • pin_spread

    false

  • sub_folder

    \System\

  • usb_spread

    true

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/6bPeUTd1

  • 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 3 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 behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7b1c2a715bb2f2a6358825f341bcd9e3db00164f44afae1a1e8538ebfdf3a9f.exe
    "C:\Users\Admin\AppData\Local\Temp\a7b1c2a715bb2f2a6358825f341bcd9e3db00164f44afae1a1e8538ebfdf3a9f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc ONLOGON /RL HIGHEST /tn LimeRAT-Admin /tr "'C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe'"
      2⤵
      • Creates scheduled task(s)
      PID:2296
    • C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe
      "C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\System\Plugin.exe

    Filesize

    126KB

    MD5

    08bae97aa3ca7a364e6bbe2aa6e8b8b6

    SHA1

    f6b7179fa8cc6a3b062c8c7b5a914c5b8f6e0312

    SHA256

    a7b1c2a715bb2f2a6358825f341bcd9e3db00164f44afae1a1e8538ebfdf3a9f

    SHA512

    ba47cc9c514627386f1f4d202b46ef182ec332db6183f4e8f5474bd13e491d91a5f7a7ee272d1d647f98ae55e553a60229100ba645c60c2e5c87b973aaf5c5a1

  • memory/744-17-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/744-15-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/744-18-0x0000000007470000-0x0000000007502000-memory.dmp

    Filesize

    584KB

  • memory/744-19-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/744-20-0x00000000073D0000-0x00000000073EE000-memory.dmp

    Filesize

    120KB

  • memory/744-21-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/5024-2-0x0000000005300000-0x000000000539C000-memory.dmp

    Filesize

    624KB

  • memory/5024-3-0x00000000053C0000-0x0000000005426000-memory.dmp

    Filesize

    408KB

  • memory/5024-4-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/5024-5-0x00000000060C0000-0x0000000006664000-memory.dmp

    Filesize

    5.6MB

  • memory/5024-1-0x0000000000950000-0x0000000000976000-memory.dmp

    Filesize

    152KB

  • memory/5024-16-0x0000000074730000-0x0000000074EE0000-memory.dmp

    Filesize

    7.7MB

  • memory/5024-0-0x000000007473E000-0x000000007473F000-memory.dmp

    Filesize

    4KB