General

  • Target

    65bfd78363839d560d5e3943a28f5f25f9efaba57cbe5d596b5ed25ccad7bdd6

  • Size

    1.6MB

  • Sample

    240702-ay1gdatblr

  • MD5

    a2b9ec66fd86910e1d9bc50db2aa45be

  • SHA1

    0f885b952cc5f6d0275cceefc662a3371eb95b3f

  • SHA256

    65bfd78363839d560d5e3943a28f5f25f9efaba57cbe5d596b5ed25ccad7bdd6

  • SHA512

    a1ac591cfa85d35f9ad5163738f2b425b651a0c641eac9f4ad2414cbc69c2f7e0c4419c533131a88c4667f721f9ce6d9f67deaf8f8ad43b39440ee3cde4cec1b

  • SSDEEP

    24576:T16dvdD4B0+lFJU2MZQti1u8LnsDJY6WpEYGYPORL4UjqmiIS5BxxK:T1Km2OG21tuuIeNHYGY0LzjsJxK

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      65bfd78363839d560d5e3943a28f5f25f9efaba57cbe5d596b5ed25ccad7bdd6

    • Size

      1.6MB

    • MD5

      a2b9ec66fd86910e1d9bc50db2aa45be

    • SHA1

      0f885b952cc5f6d0275cceefc662a3371eb95b3f

    • SHA256

      65bfd78363839d560d5e3943a28f5f25f9efaba57cbe5d596b5ed25ccad7bdd6

    • SHA512

      a1ac591cfa85d35f9ad5163738f2b425b651a0c641eac9f4ad2414cbc69c2f7e0c4419c533131a88c4667f721f9ce6d9f67deaf8f8ad43b39440ee3cde4cec1b

    • SSDEEP

      24576:T16dvdD4B0+lFJU2MZQti1u8LnsDJY6WpEYGYPORL4UjqmiIS5BxxK:T1Km2OG21tuuIeNHYGY0LzjsJxK

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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.

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks