Analysis

  • max time kernel
    172s
  • max time network
    34s
  • 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

    3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198.exe

  • Size

    147KB

  • MD5

    a33390dc8b84abe30014c46d0f9353cc

  • SHA1

    efbd6b925d943a5973d508acafbe8d5e1a3a9818

  • SHA256

    3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198

  • SHA512

    15f40830c7847475fe959553bd375c66a994369fb01bed0e983e0b0c8ebe710963b232331bbad90aa384e5e184a5df92711ad8c91edf1880672c7428890e6b81

  • SSDEEP

    3072:I3QT8B4Sv0tElYY28Ts2gawnHv28ifsPUAbGdZd:nTsx08PFYvS

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\3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198.exe
    "C:\Users\Admin\AppData\Local\Temp\3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1068
    • C:\Users\Admin\AppData\Local\Temp\3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198.exe
      "C:\Users\Admin\AppData\Local\Temp\3d604bb259762a9bd3e000cdb0519abc1f852cdca1fe558f49733373f3e23198.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 392
        3⤵
        • Suspicious behavior: GetForegroundWindowSpam
        PID:1184

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1068-54-0x0000000074FA1000-0x0000000074FA3000-memory.dmp

    Filesize

    8KB

  • memory/1068-67-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB

  • memory/1104-58-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-59-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-56-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-55-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-60-0x0000000000408D8E-mapping.dmp

  • memory/1104-62-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-64-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/1104-69-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB

  • memory/1104-70-0x0000000073FA0000-0x000000007454B000-memory.dmp

    Filesize

    5.7MB

  • memory/1184-66-0x0000000000000000-mapping.dmp