Analysis

  • max time kernel
    61s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2023 20:02

General

  • Target

    tmp.exe

  • Size

    409KB

  • MD5

    24604438f2cb5fcbda87b9fe3f817bcb

  • SHA1

    fe61f3c2824ea356df33eba858d5abed8f46ef82

  • SHA256

    9a61e776585dc88a15e548278caead09cdb871d4f4fac962cf14f0d43eca9c25

  • SHA512

    179fbb54aa9f3f87ff56c2521354a846d67115e691f2c9821dca92ed01b0492334ced528b33d3062d9a5575fa3ae0e1a12f2cf89150d380234af3921edcb7f9d

  • SSDEEP

    6144:YtojTSy7+iRLF+NkKloo39+Te9Oy4BXZ/lZX02oNawWk/mrFy27UoZkCDqUFh:bSAM/99+Te9nWzZXcp/GF7UyDqUFh

Malware Config

Extracted

Family

vidar

Version

3

Botnet

2548f166286a0b36dbfd9f8a1ac09311

C2

https://t.me/zaskullz

https://steamcommunity.com/profiles/76561199486572327

http://135.181.87.234:80

Attributes
  • profile_id_v2

    2548f166286a0b36dbfd9f8a1ac09311

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:1300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 340
          3⤵
          • Program crash
          PID:3656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1300 -ip 1300
      1⤵
        PID:1368

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1300-135-0x0000000000520000-0x0000000000591000-memory.dmp

        Filesize

        452KB

      • memory/1300-138-0x0000000000520000-0x0000000000591000-memory.dmp

        Filesize

        452KB

      • memory/1300-141-0x0000000000520000-0x0000000000591000-memory.dmp

        Filesize

        452KB

      • memory/2348-133-0x0000000000800000-0x000000000086C000-memory.dmp

        Filesize

        432KB

      • memory/2348-142-0x0000000005250000-0x0000000005260000-memory.dmp

        Filesize

        64KB

      • memory/2348-143-0x0000000005250000-0x0000000005260000-memory.dmp

        Filesize

        64KB