Analysis

  • max time kernel
    144s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/03/2024, 01:00

General

  • Target

    059f83868e7063b70bb6a36a7a9a618a4b3887c4dce94cc713d400e45b2337b5.exe

  • Size

    234KB

  • MD5

    436bd90a95f5ff01c7c05c83935a3c31

  • SHA1

    1389f2152a7107952b12e547078eee5ed8ad9839

  • SHA256

    059f83868e7063b70bb6a36a7a9a618a4b3887c4dce94cc713d400e45b2337b5

  • SHA512

    2d26c6a202f973d5f1d71b9f8ef0af348082c1429034e374473663cc965f23e72844ea0c560fe57dc03e2cbca8eef2a411989aac2ee8e47e95fa5bd7199525db

  • SSDEEP

    6144:cwhV2xyQSlM/KsQRz7/ssEZATM8YSU1sIAQ:cwD2t/bQ52wQ

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.

  • Detects Windows executables referencing non-Windows User-Agents 3 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\059f83868e7063b70bb6a36a7a9a618a4b3887c4dce94cc713d400e45b2337b5.exe
    "C:\Users\Admin\AppData\Local\Temp\059f83868e7063b70bb6a36a7a9a618a4b3887c4dce94cc713d400e45b2337b5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2332
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:2124
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2124 -s 2340
            3⤵
            • Program crash
            PID:996
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 880
          2⤵
          • Program crash
          PID:2792
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1556 -ip 1556
        1⤵
          PID:3048
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2124 -ip 2124
          1⤵
            PID:1156

          Network

                MITRE ATT&CK Matrix

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • memory/1556-0-0x0000000074F50000-0x0000000075700000-memory.dmp

                  Filesize

                  7.7MB

                • memory/1556-1-0x0000000000D90000-0x0000000000DCC000-memory.dmp

                  Filesize

                  240KB

                • memory/1556-10-0x0000000003220000-0x0000000005220000-memory.dmp

                  Filesize

                  32.0MB

                • memory/1556-14-0x0000000074F50000-0x0000000075700000-memory.dmp

                  Filesize

                  7.7MB

                • memory/2124-4-0x0000000000400000-0x0000000000648000-memory.dmp

                  Filesize

                  2.3MB

                • memory/2124-7-0x0000000000400000-0x0000000000648000-memory.dmp

                  Filesize

                  2.3MB

                • memory/2124-9-0x0000000000400000-0x0000000000648000-memory.dmp

                  Filesize

                  2.3MB