Analysis

  • max time kernel
    93s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2024 01:23

General

  • Target

    4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe

  • Size

    214KB

  • MD5

    44ec00c94ceb935df7244cb692fec9b8

  • SHA1

    aad96da95feeadd4cbe7f504a055fa1896c7414c

  • SHA256

    4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a

  • SHA512

    0adc31bc898bcf2ff3057b9cfb67a65bfc127c3849ad64133c273a45bde4901b4667790e5a59b959a711f0ddf5aa71a89ebc6285f41e0f5b921d59f07be52497

  • SSDEEP

    6144:pnkd9Rk0WB3H38DwMXHQg/Z9ScXJ+xovgnkBBG:uHiLcDwMXw8ZscXJ+xoonkBB

Score
10/10

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199662282318

https://t.me/t8jmhl

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 OPR/108.0.0.0

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 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe
    "C:\Users\Admin\AppData\Local\Temp\4379e1290aa5d36cc98722935afab5764ba64d61e9f0615b5395c2a22c75d80a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 2068
          3⤵
          • Program crash
          PID:2536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4964 -ip 4964
      1⤵
        PID:3968

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2480-0-0x00000000001C0000-0x00000000001FC000-memory.dmp

        Filesize

        240KB

      • memory/2480-1-0x0000000074E90000-0x0000000075640000-memory.dmp

        Filesize

        7.7MB

      • memory/2480-11-0x0000000002680000-0x0000000004680000-memory.dmp

        Filesize

        32.0MB

      • memory/2480-12-0x0000000074E90000-0x0000000075640000-memory.dmp

        Filesize

        7.7MB

      • memory/4964-4-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/4964-7-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB

      • memory/4964-10-0x0000000000400000-0x0000000000648000-memory.dmp

        Filesize

        2.3MB