Analysis

  • max time kernel
    211s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    22-07-2024 05:16

General

  • Target

    fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674.exe

  • Size

    5.2MB

  • MD5

    0891d36dd26059e8a74ada84fd9885e5

  • SHA1

    743f9e888626f1313ef387e4fe4d16c86f092ef9

  • SHA256

    fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674

  • SHA512

    874bf077b0878deefae6542d48057aa4291bbb73747da90d24e7b8721c96a83768dd6a9dcc1dd4b00200185a50a4066f3cffd0c09e042863ba0396ac56297782

  • SSDEEP

    98304:zKWiKUEpu5K2BgXs3eR6xH/KtnojpHXrD8Xs91Ae7Vfy2R1:zKWiKU+AGXuocUnojRXrD8Xs9V7ly2j

Malware Config

Extracted

Family

vidar

Version

10.5

Botnet

3a901b2c4dd248059af72250cf07aba7

C2

https://t.me/s41l0

https://steamcommunity.com/profiles/76561199743486170

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 YaBrowser/24.6.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674.exe
    "C:\Users\Admin\AppData\Local\Temp\fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:4564
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1600
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BGHJEBKJEGHJ" & exit
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:5004
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 10
            4⤵
            • Delays execution with timeout.exe
            PID:1824

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1600-68-0x0000000000400000-0x0000000000640000-memory.dmp

      Filesize

      2.2MB

    • memory/1600-123-0x0000000000400000-0x0000000000640000-memory.dmp

      Filesize

      2.2MB

    • memory/1600-88-0x0000000000400000-0x0000000000640000-memory.dmp

      Filesize

      2.2MB

    • memory/1600-73-0x0000000000400000-0x0000000000640000-memory.dmp

      Filesize

      2.2MB

    • memory/1600-70-0x0000000000400000-0x0000000000640000-memory.dmp

      Filesize

      2.2MB

    • memory/5044-48-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-44-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-14-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-5-0x00000000054C0000-0x00000000055EA000-memory.dmp

      Filesize

      1.2MB

    • memory/5044-67-0x0000000073E50000-0x000000007453E000-memory.dmp

      Filesize

      6.9MB

    • memory/5044-4-0x0000000005340000-0x00000000054C0000-memory.dmp

      Filesize

      1.5MB

    • memory/5044-66-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-64-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-62-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-72-0x0000000073E50000-0x000000007453E000-memory.dmp

      Filesize

      6.9MB

    • memory/5044-60-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-3-0x0000000073E50000-0x000000007453E000-memory.dmp

      Filesize

      6.9MB

    • memory/5044-58-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-56-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-54-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-52-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-50-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-0-0x0000000073E5E000-0x0000000073E5F000-memory.dmp

      Filesize

      4KB

    • memory/5044-46-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-6-0x0000000002B40000-0x0000000002B5C000-memory.dmp

      Filesize

      112KB

    • memory/5044-42-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-40-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-38-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-36-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-34-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-22-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-20-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-18-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-16-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-10-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-32-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-30-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-28-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-26-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-24-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-7-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-12-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-8-0x0000000002B40000-0x0000000002B55000-memory.dmp

      Filesize

      84KB

    • memory/5044-2-0x00000000052A0000-0x000000000533C000-memory.dmp

      Filesize

      624KB

    • memory/5044-1-0x0000000000450000-0x0000000000984000-memory.dmp

      Filesize

      5.2MB