General

  • Target

    d9190469c573e6676954aa8e2cc75f6636476ddbd6272a79190cd070ffaa7a5d

  • Size

    2.2MB

  • Sample

    240701-hyyxjsyfkg

  • MD5

    8599b45ef6eb3efbeec6ad797225867d

  • SHA1

    1e7c09c58256e54b912a4bd4bf61c0551db7232a

  • SHA256

    d9190469c573e6676954aa8e2cc75f6636476ddbd6272a79190cd070ffaa7a5d

  • SHA512

    d63714f894e6a9e96a097545f77d9641953ffdb06c34c43dcba7ca1ba24e28c78a50cfb3c097481e2a1bee90a4253d141ae11a719eb95adfd6286bd5ad8fc30e

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXncU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPT21tuuIeNHYGY0LzjsJxK

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

      d9190469c573e6676954aa8e2cc75f6636476ddbd6272a79190cd070ffaa7a5d

    • Size

      2.2MB

    • MD5

      8599b45ef6eb3efbeec6ad797225867d

    • SHA1

      1e7c09c58256e54b912a4bd4bf61c0551db7232a

    • SHA256

      d9190469c573e6676954aa8e2cc75f6636476ddbd6272a79190cd070ffaa7a5d

    • SHA512

      d63714f894e6a9e96a097545f77d9641953ffdb06c34c43dcba7ca1ba24e28c78a50cfb3c097481e2a1bee90a4253d141ae11a719eb95adfd6286bd5ad8fc30e

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXncU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPT21tuuIeNHYGY0LzjsJxK

    • 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