General

  • Target

    a4983faa6bc1743bd7607fc5f8204694e6852af052a2bb8db7af6e24fe71267a

  • Size

    4.3MB

  • Sample

    220724-v5ll1schdn

  • MD5

    c8659d50dd2e24fb509377114355aa36

  • SHA1

    0a3d5ba3e3cb94c89c2007c68ba11ba97674c67a

  • SHA256

    a4983faa6bc1743bd7607fc5f8204694e6852af052a2bb8db7af6e24fe71267a

  • SHA512

    3ff3d3aee31f76f3bee725740b803331439602b92791e6aea5f62dcf112689caab262f4a8d7bee45c0f70ff4ccc6d29a24802d8705e8032c17fd26a54a790d5a

Malware Config

Extracted

Family

vidar

Version

9.9

Botnet

231

C2

http://rapidbtcinvest.com/

Attributes
  • profile_id

    231

Targets

    • Target

      a4983faa6bc1743bd7607fc5f8204694e6852af052a2bb8db7af6e24fe71267a

    • Size

      4.3MB

    • MD5

      c8659d50dd2e24fb509377114355aa36

    • SHA1

      0a3d5ba3e3cb94c89c2007c68ba11ba97674c67a

    • SHA256

      a4983faa6bc1743bd7607fc5f8204694e6852af052a2bb8db7af6e24fe71267a

    • SHA512

      3ff3d3aee31f76f3bee725740b803331439602b92791e6aea5f62dcf112689caab262f4a8d7bee45c0f70ff4ccc6d29a24802d8705e8032c17fd26a54a790d5a

    • 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.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

4
T1005

Tasks