General

  • Target

    3126a3b54875a1ec03175d65d9d149c7cb19c6bcd79546454ecd911914335066

  • Size

    2.7MB

  • Sample

    220324-s7fgnsfgam

  • MD5

    b9e5e995024fe62b794d64f9a9fa4c4b

  • SHA1

    37f08df51635d37df59129d5fef58acd82b5cee2

  • SHA256

    3126a3b54875a1ec03175d65d9d149c7cb19c6bcd79546454ecd911914335066

  • SHA512

    1b42289de9f7c2d3b9312965d19dfc6bb9a1bca9332d06ee6c5d79e915228c6e37f5e4e1bf5ae4579bad51808cee9e8224ee94a684dc0125223571580adc1291

Malware Config

Extracted

Family

vidar

Version

11.3

Botnet

231

C2

http://tonetm.com/

Attributes
  • profile_id

    231

Targets

    • Target

      3126a3b54875a1ec03175d65d9d149c7cb19c6bcd79546454ecd911914335066

    • Size

      2.7MB

    • MD5

      b9e5e995024fe62b794d64f9a9fa4c4b

    • SHA1

      37f08df51635d37df59129d5fef58acd82b5cee2

    • SHA256

      3126a3b54875a1ec03175d65d9d149c7cb19c6bcd79546454ecd911914335066

    • SHA512

      1b42289de9f7c2d3b9312965d19dfc6bb9a1bca9332d06ee6c5d79e915228c6e37f5e4e1bf5ae4579bad51808cee9e8224ee94a684dc0125223571580adc1291

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    • Vidar Stealer

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • Checks installed software on the system

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks