Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2024 13:05

General

  • Target

    afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5.exe

  • Size

    277KB

  • MD5

    8dae8b6a6be6e3527183594d1c26a2d3

  • SHA1

    b87e40cee60869a36e79c88c8a3a34baf0bc4889

  • SHA256

    afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5

  • SHA512

    0bf065700db647efba39a13a58242a595907e6c11885575cf0bdad9e23ab40583c8a6535464e46d75d075e20d88b7a6305a761df9da787fdc8728483dd48f96e

  • SSDEEP

    6144:GtcSsUDC2OZuhYRQqPY3x/OKV/LYZsTZgzENh+a1:TSsUO2cuhY1m/VYZsI

Malware Config

Extracted

Family

vidar

Version

8.6

Botnet

5739ef2bbcd39fcd59c5746bfe4238c5

C2

https://steamcommunity.com/profiles/76561199658817715

https://t.me/sa9ok

Attributes
  • profile_id_v2

    5739ef2bbcd39fcd59c5746bfe4238c5

  • 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 5 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5.exe
    "C:\Users\Admin\AppData\Local\Temp\afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\AppData\Local\Temp\afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5.exe
      "C:\Users\Admin\AppData\Local\Temp\afce72cd3bc717c784962083066e3ede2b0aaadbe0908ec7360096c923774fa5.exe"
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3068 -s 1452
        3⤵
        • Program crash
        PID:2444

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar1A7A.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2240-5-0x0000000000230000-0x0000000000261000-memory.dmp
    Filesize

    196KB

  • memory/2240-6-0x0000000000990000-0x0000000000A90000-memory.dmp
    Filesize

    1024KB

  • memory/2240-49-0x0000000000990000-0x0000000000A90000-memory.dmp
    Filesize

    1024KB

  • memory/3068-3-0x0000000000400000-0x0000000000644000-memory.dmp
    Filesize

    2.3MB

  • memory/3068-7-0x0000000000400000-0x0000000000644000-memory.dmp
    Filesize

    2.3MB

  • memory/3068-8-0x0000000000400000-0x0000000000644000-memory.dmp
    Filesize

    2.3MB

  • memory/3068-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/3068-47-0x0000000000400000-0x0000000000644000-memory.dmp
    Filesize

    2.3MB