Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-02-2024 11:03

General

  • Target

    Sft_Extra.exe

  • Size

    1.1MB

  • MD5

    f975a2d83d63a473fa2fc5206b66bb79

  • SHA1

    e49d21f112ab27ae0953aff30ae122440cf164b9

  • SHA256

    6a2d3876003f6c68f824df4f0033564d8c230716908ba2e6c06ea1dd6d5f98e8

  • SHA512

    4af4ce56bf131432d488ed112f8858c1e1392d013c6ac0603f2fd70ed513091e35854c0f678efeab7fa9a551517c6b9698f40a92729112de4b852fa3c0c69d64

  • SSDEEP

    12288:IbCylcTVPbi7vT1K7n6HpVkg8KHIo5u0K1VmMxEnbuvuY2jTU+LHMA+nk2oG1ts:4lcTVPbikTMkg8KH/mmMxnvfphx8

Malware Config

Extracted

Family

vidar

Version

7.8

Botnet

11517b89b590a0507ebc843bd239d1e5

C2

https://t.me/karl3on

https://steamcommunity.com/profiles/76561199637071579

Attributes
  • profile_id_v2

    11517b89b590a0507ebc843bd239d1e5

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Signatures

  • Detect Vidar Stealer 2 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sft_Extra.exe
    "C:\Users\Admin\AppData\Local\Temp\Sft_Extra.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Windows\SysWOW64\more.com
      C:\Windows\SysWOW64\more.com
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Users\Admin\AppData\Local\Temp\Zima.pif
        C:\Users\Admin\AppData\Local\Temp\Zima.pif
        3⤵
        • Loads dropped DLL
        PID:4908
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 1996
          4⤵
          • Program crash
          PID:664
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4908 -ip 4908
    1⤵
      PID:3152

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\1781c000

      Filesize

      1.2MB

      MD5

      b5d4f45735350d0b9659ef38d280aea6

      SHA1

      334ed12a6bd8a7a14b31a714fa6b1508ef666329

      SHA256

      1663db0a9637532c61c821a72897f086187856498666365762bb1d55ad348949

      SHA512

      31e6d6a2d71c2704432b9063557d3b92a730b37239f79d0036be7a3268799066ab7f43ab70535c78ba23db4dce006bda7ec6c9ac7dc694e3c925512526bcbbb8

    • C:\Users\Admin\AppData\Local\Temp\Zima.pif

      Filesize

      332KB

      MD5

      578b84dffcdde848e5726fb87f7795fc

      SHA1

      54e40becf54cbf4a1c30558140febc872e14ee6b

      SHA256

      3af13cc9a44cd8ac077ae3d1b8a00625e5e288c51d6d797231b2de4a1aba87fd

      SHA512

      0d73f2ef0664d273f096fd17a0d4a7c73adbaf1551a041cb7802a9bd6d69c04121c561e57b8dfdd7a415899568baf832cb44307d4024d053049b976cc870e5e3

    • memory/2172-8-0x00007FFDC7E90000-0x00007FFDC8085000-memory.dmp

      Filesize

      2.0MB

    • memory/2172-10-0x0000000075A80000-0x0000000075BFB000-memory.dmp

      Filesize

      1.5MB

    • memory/2172-12-0x0000000075A80000-0x0000000075BFB000-memory.dmp

      Filesize

      1.5MB

    • memory/2172-14-0x0000000075A80000-0x0000000075BFB000-memory.dmp

      Filesize

      1.5MB

    • memory/4888-0-0x00007FFDB8F10000-0x00007FFDB9082000-memory.dmp

      Filesize

      1.4MB

    • memory/4888-4-0x00007FFDB8F10000-0x00007FFDB9082000-memory.dmp

      Filesize

      1.4MB

    • memory/4888-5-0x00007FFDB8F10000-0x00007FFDB9082000-memory.dmp

      Filesize

      1.4MB

    • memory/4908-18-0x00007FFDC7E90000-0x00007FFDC8085000-memory.dmp

      Filesize

      2.0MB

    • memory/4908-21-0x0000000000860000-0x0000000000AA6000-memory.dmp

      Filesize

      2.3MB

    • memory/4908-22-0x0000000000860000-0x0000000000AA6000-memory.dmp

      Filesize

      2.3MB