Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 11:07

General

  • Target
    file.exe
  • Size 238KB
  • Sample240329-m7zbwsfd6s
  • SHA256 f714adc256ed7b0d48a50c9b10d0db1d6285541801e720569c86fceeba072697
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Family
  • vidar

C2
  • https://steamcommunity.com/profiles/76561199658817715

  • https://t.me/sa9ok

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 3 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1184
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4320
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4320 -s 2256
          3⤵
          • Program crash
          PID:3292
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 868
        2⤵
        • Program crash
        PID:4420
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1184 -ip 1184
      1⤵
        PID:2220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4320 -ip 4320
        1⤵
          PID:4888

        Network

              MITRE ATT&CK Matrix

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              memory/1184-0-0x0000000000520000-0x000000000055E000-memory.dmp

              memory/1184-1-0x0000000074FF0000-0x00000000757A0000-memory.dmp

              memory/1184-10-0x00000000029C0000-0x00000000049C0000-memory.dmp

              memory/1184-14-0x0000000074FF0000-0x00000000757A0000-memory.dmp

              memory/4320-4-0x0000000000400000-0x0000000000648000-memory.dmp

              memory/4320-7-0x0000000000400000-0x0000000000648000-memory.dmp

              memory/4320-9-0x0000000000400000-0x0000000000648000-memory.dmp