Analysis

  • max time kernel
    135s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 21:30

General

  • Target

    a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe

  • Size

    209KB

  • MD5

    8f2b5ea332e3ccce22b109de0cfe4fd7

  • SHA1

    8938199f8346c6a27a106bfae658017613d7f935

  • SHA256

    a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf

  • SHA512

    f1b04d1c264255deedc5f627b13279589b7ac06685ebfd1c90f670b8bbda450a1faab796fc3226180c790c0891eab0e286d2c533bfd252ed795b63e3086a0383

  • SSDEEP

    3072:v2gawntv0gTmsqBSNAVk2ThBmbIenFqeWnKpAAKg6HvF:uFsvFCsqoNI/+FunKpAA6

Score
10/10

Malware Config

Extracted

Family

limerat

Attributes
  • aes_key

    IRj3SceatjDfweW/qMMw7g==

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/Pzx225ZB

  • delay

    3

  • download_payload

    false

  • install

    true

  • install_name

    Audio Realtek Driver.exe

  • main_folder

    AppData

  • pin_spread

    true

  • sub_folder

    \Audio Realtek Driver\

  • usb_spread

    false

Signatures

  • LimeRAT

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe
    "C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:972
    • C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe
      "C:\Users\Admin\AppData\Local\Temp\a14a7db2cd820a22051c2fc7e7fde1742a3a229629def61199fd35eec1807edf.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 396
        3⤵
        • Suspicious behavior: GetForegroundWindowSpam
        PID:592

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/592-66-0x0000000000000000-mapping.dmp

  • memory/972-54-0x0000000075701000-0x0000000075703000-memory.dmp

    Filesize

    8KB

  • memory/972-67-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB

  • memory/1172-55-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-56-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-58-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-59-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-60-0x0000000000408D8E-mapping.dmp

  • memory/1172-62-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-64-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1172-69-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB

  • memory/1172-70-0x00000000741F0000-0x000000007479B000-memory.dmp

    Filesize

    5.7MB