General

  • Target

    Unlock_Tool_v2.5.3.exe.zip

  • Size

    776KB

  • Sample

    241108-zyqdvazelr

  • MD5

    1c205ef0f9090e173774baf6cc16db41

  • SHA1

    ddcd1dcdad8318174bcdb42bf63e7fd81e9dfb29

  • SHA256

    d9968e713bc0c0236ce95464f670b18fe5f61b218f0360efb3b6c84f1751a80c

  • SHA512

    004f0bdf5d7678028269eba66ee092f1819802337336b774a500c238778e15d6588b008cc21890c8150347df2f14ed81a2799ba345b9402aced02ae5129e40cc

  • SSDEEP

    12288:4BThI5spy/QJeBV6QVbIhm6PGVd7I2VsvkHxh2DzarHc1tiLXCYoO0C9K:4BaWy/NBvEE6+DI9/P1t/YoO0C9K

Malware Config

Extracted

Family

vidar

C2

https://t.me/gos90t

https://steamcommunity.com/profiles/76561199800374635

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Targets

    • Target

      Unlock_Tool_v2.5.3.exe.bin

    • Size

      1014KB

    • MD5

      f42bf5672f267e2c91ab15cf5e62a65b

    • SHA1

      91a7fe6ae7b7d65f1d5fd0331e5a5114e00774ba

    • SHA256

      47f4e44456ec5a1e8cd427c76bfbe12285ecf5e4e6b0d0e20114527c5948f1cd

    • SHA512

      2f76684191aa3e186db40d30a606cb0118995e80014ed5f2a2551b9e09ecf82d560fdf7837f5216ae5b51c062b7668dab7770562dd932aee9c4dd879ffdf014a

    • SSDEEP

      12288:A4tEnhbou8tI4N1dM16AO9pRL/y7NEoGYW7p9nOmeymPOtanSX3XxPWxQ1MFMHwF:BtBDay3Gho1fkdQT6mdb9eEnuvr7v

    • Detect Vidar Stealer

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Downloads MZ/PE file

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks