Analysis

  • max time kernel
    92s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • submitted
    11/09/2022, 06:45

General

  • Target
    400566d192aca40edf56b858214ed0b9.exe
  • Size 608KB
  • Sample220911-hh292abbc2
  • SHA256 9e5c7ec1fd704ef7fa6463ed839875ddc039f276bf8e0f866f228e275b349454
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 54.2

Botnet
  • 1438

C2
  • https://t.me/tigogames

  • https://ioc.exchange/@tiagoa26

Attributes
  • profile_id

    1438

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Loads dropped DLL 2 IoCs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\400566d192aca40edf56b858214ed0b9.exe
    "C:\Users\Admin\AppData\Local\Temp\400566d192aca40edf56b858214ed0b9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4392
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3728
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im AppLaunch.exe /f & timeout /t 6 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe" & del C:\PrograData\*.dll & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1304
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im AppLaunch.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4160
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:3228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3728 -ip 3728
    1⤵
      PID:4204

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          mozglue.dll

          • Path C:\ProgramData\mozglue.dll
          • Size 133KB
          • SHA256 3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd
          • MD5 SHA1 SHA512 SSDEEP

          nss3.dll

          • Path C:\ProgramData\nss3.dll
          • Size 1.2MB
          • SHA256 e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78
          • MD5 SHA1 SHA512 SSDEEP

          memory/3728-133-0x0000000000400000-0x000000000045D000-memory.dmp

          memory/3728-139-0x0000000000400000-0x000000000045D000-memory.dmp

          memory/3728-140-0x0000000060900000-0x0000000060992000-memory.dmp