Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240709-en
  • resource tags

    arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-07-2024 19:05

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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674.exe
    "C:\Users\Admin\AppData\Local\Temp\fa41bf610e2af66a75a73cb1d348aecc9a275756710c05be99220bbddbd34674.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:412
    • 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:2968
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\FIIJJKKFHIEH" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2656
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:1384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/412-46-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-44-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-2-0x0000000005F50000-0x0000000005FEC000-memory.dmp

    Filesize

    624KB

  • memory/412-38-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-4-0x0000000005FF0000-0x0000000006170000-memory.dmp

    Filesize

    1.5MB

  • memory/412-5-0x0000000006170000-0x000000000629A000-memory.dmp

    Filesize

    1.2MB

  • memory/412-6-0x0000000005E00000-0x0000000005E1C000-memory.dmp

    Filesize

    112KB

  • memory/412-56-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-66-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-36-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-8-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-12-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-71-0x0000000074A00000-0x00000000751B1000-memory.dmp

    Filesize

    7.7MB

  • memory/412-64-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-62-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-60-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-58-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-34-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-52-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-50-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-40-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-73-0x0000000074A00000-0x00000000751B1000-memory.dmp

    Filesize

    7.7MB

  • memory/412-3-0x0000000074A00000-0x00000000751B1000-memory.dmp

    Filesize

    7.7MB

  • memory/412-16-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-54-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-28-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-22-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-20-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-18-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-14-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-10-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-7-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-48-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

    Filesize

    4KB

  • memory/412-1-0x0000000000FF0000-0x0000000001524000-memory.dmp

    Filesize

    5.2MB

  • memory/412-42-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-32-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-30-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-26-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/412-24-0x0000000005E00000-0x0000000005E15000-memory.dmp

    Filesize

    84KB

  • memory/2968-87-0x0000000000400000-0x0000000000640000-memory.dmp

    Filesize

    2.2MB

  • memory/2968-72-0x0000000000400000-0x0000000000640000-memory.dmp

    Filesize

    2.2MB

  • memory/2968-69-0x0000000000400000-0x0000000000640000-memory.dmp

    Filesize

    2.2MB

  • memory/2968-67-0x0000000000400000-0x0000000000640000-memory.dmp

    Filesize

    2.2MB

  • memory/2968-135-0x0000000000400000-0x0000000000640000-memory.dmp

    Filesize

    2.2MB