General

  • Target

    1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a

  • Size

    2.2MB

  • Sample

    240701-bb74davanr

  • MD5

    d12105d3018a3dc2e473fa1904c5fc45

  • SHA1

    358a14db2bd9fda6c6dffda424a5311fa21d6f6f

  • SHA256

    1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a

  • SHA512

    4a860530ac59a87ed5f5b00f14366ed2431d081aa97e4af56909af0990bc64b6af3d2fc003cd2d946242b183207b05e9d0b333cf85ef1e15ebd965813a67efbb

  • SSDEEP

    24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX3pU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPG21tuuIeNHYGY0LzjsJxK

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

      1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a

    • Size

      2.2MB

    • MD5

      d12105d3018a3dc2e473fa1904c5fc45

    • SHA1

      358a14db2bd9fda6c6dffda424a5311fa21d6f6f

    • SHA256

      1d9a4b30d701d760496889db13feea1ceab8fee605bedec3960b4bffa7d2044a

    • SHA512

      4a860530ac59a87ed5f5b00f14366ed2431d081aa97e4af56909af0990bc64b6af3d2fc003cd2d946242b183207b05e9d0b333cf85ef1e15ebd965813a67efbb

    • SSDEEP

      24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgX3pU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPG21tuuIeNHYGY0LzjsJxK

    • 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