Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/01/2024, 08:06

General

  • Target

    83e3af085f7c7d7432d4affbadc75982.exe

  • Size

    787KB

  • MD5

    83e3af085f7c7d7432d4affbadc75982

  • SHA1

    3e0565a829e1b511937ee7763f9f6f96e87cbcf8

  • SHA256

    a47e2fbaf6db3a9a1a410813ec99c958d84edd389437caadbadfb6debc25d758

  • SHA512

    a25bcd0c1f50c2bf3b287299ae150ad972af5db5beeb3322d2b9f50bc88c340c7ee97298d12963cccce5c7c1963ee76720954e5f92c25002f586a6b8301daed3

  • SSDEEP

    24576:SeC88ES/d3YK64JEWmSC3SU9IwT4zgr1:uuK64JrzC3SU9Is4g1

Score
10/10

Malware Config

Extracted

Family

limerat

Wallets

bc1q5746qkzdr628cmq4swa02lpu2mk69t0pdxdgzs

Attributes
  • aes_key

    Wealth1000$

  • antivm

    false

  • c2_url

    https://pastebin.com/raw/LF04hVta

  • delay

    3

  • download_payload

    false

  • install

    false

  • install_name

    Wservices.exe

  • main_folder

    Temp

  • pin_spread

    false

  • sub_folder

    \

  • usb_spread

    true

Extracted

Family

limerat

Attributes
  • antivm

    false

  • c2_url

    https://pastebin.com/raw/LF04hVta

  • download_payload

    false

  • install

    false

  • pin_spread

    false

  • usb_spread

    false

Signatures

  • LimeRAT

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

  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83e3af085f7c7d7432d4affbadc75982.exe
    "C:\Users\Admin\AppData\Local\Temp\83e3af085f7c7d7432d4affbadc75982.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Users\Admin\AppData\Local\Temp\83e3af085f7c7d7432d4affbadc75982.exe
      "C:\Users\Admin\AppData\Local\Temp\83e3af085f7c7d7432d4affbadc75982.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1320

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\83e3af085f7c7d7432d4affbadc75982.exe.log

          Filesize

          1KB

          MD5

          17573558c4e714f606f997e5157afaac

          SHA1

          13e16e9415ceef429aaf124139671ebeca09ed23

          SHA256

          c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

          SHA512

          f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

        • memory/1320-13-0x0000000000400000-0x000000000040C000-memory.dmp

          Filesize

          48KB

        • memory/1320-21-0x00000000059D0000-0x00000000059E0000-memory.dmp

          Filesize

          64KB

        • memory/1320-20-0x0000000074D30000-0x00000000754E0000-memory.dmp

          Filesize

          7.7MB

        • memory/1320-18-0x0000000005850000-0x00000000058B6000-memory.dmp

          Filesize

          408KB

        • memory/1320-19-0x00000000059D0000-0x00000000059E0000-memory.dmp

          Filesize

          64KB

        • memory/1320-16-0x0000000074D30000-0x00000000754E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4888-10-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/4888-7-0x0000000004E30000-0x0000000004E86000-memory.dmp

          Filesize

          344KB

        • memory/4888-9-0x0000000074D30000-0x00000000754E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4888-0-0x0000000000070000-0x000000000013C000-memory.dmp

          Filesize

          816KB

        • memory/4888-11-0x0000000006640000-0x0000000006696000-memory.dmp

          Filesize

          344KB

        • memory/4888-12-0x00000000066B0000-0x00000000066BE000-memory.dmp

          Filesize

          56KB

        • memory/4888-6-0x0000000004B20000-0x0000000004B2A000-memory.dmp

          Filesize

          40KB

        • memory/4888-8-0x0000000005120000-0x0000000005132000-memory.dmp

          Filesize

          72KB

        • memory/4888-17-0x0000000074D30000-0x00000000754E0000-memory.dmp

          Filesize

          7.7MB

        • memory/4888-5-0x0000000004DC0000-0x0000000004DD0000-memory.dmp

          Filesize

          64KB

        • memory/4888-4-0x0000000004BF0000-0x0000000004C82000-memory.dmp

          Filesize

          584KB

        • memory/4888-3-0x00000000051A0000-0x0000000005744000-memory.dmp

          Filesize

          5.6MB

        • memory/4888-2-0x0000000004B50000-0x0000000004BEC000-memory.dmp

          Filesize

          624KB

        • memory/4888-1-0x0000000074D30000-0x00000000754E0000-memory.dmp

          Filesize

          7.7MB