General

  • Target

    a6c9e5b7bac981bd1da33de2934dfad66ba32916effd52ad57a77b349984119b

  • Size

    4.3MB

  • Sample

    220625-gx9f8abcb8

  • MD5

    13f3a3c79ceee161c26f0b6b81cb27fb

  • SHA1

    fa6823c3588f1b857a4b4adbcba0877be712dc5f

  • SHA256

    a6c9e5b7bac981bd1da33de2934dfad66ba32916effd52ad57a77b349984119b

  • SHA512

    efd0d198b6f70f41c02976f39ac9a02b207132a27903cccafb764dd99700aff5537ac75738c7d8ca7b4a37f4c3b4df3f959beef60b9b133132a72ccc55247b4c

Malware Config

Extracted

Family

vidar

Version

9.9

Botnet

231

C2

http://rapidbtcinvest.com/

Attributes
  • profile_id

    231

Targets

    • Target

      a6c9e5b7bac981bd1da33de2934dfad66ba32916effd52ad57a77b349984119b

    • Size

      4.3MB

    • MD5

      13f3a3c79ceee161c26f0b6b81cb27fb

    • SHA1

      fa6823c3588f1b857a4b4adbcba0877be712dc5f

    • SHA256

      a6c9e5b7bac981bd1da33de2934dfad66ba32916effd52ad57a77b349984119b

    • SHA512

      efd0d198b6f70f41c02976f39ac9a02b207132a27903cccafb764dd99700aff5537ac75738c7d8ca7b4a37f4c3b4df3f959beef60b9b133132a72ccc55247b4c

    • 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