General

  • Target

    1b8e1993faa7d88c32a3cfba4af8db01b2ca57c7588b65bfe4bba68c74204c92

  • Size

    4.2MB

  • Sample

    220607-wzm4bscbej

  • MD5

    aea7ce7cdb122cb3592a9cf011497f37

  • SHA1

    356631e8716e7e2e5007270d036d769e7765fbba

  • SHA256

    1b8e1993faa7d88c32a3cfba4af8db01b2ca57c7588b65bfe4bba68c74204c92

  • SHA512

    d1a83cc4c14cf50f07ad97bba1518000c748788d3d3cd2ec4686f2639ff4f2e31c75e74472571e257f93615bb537391799976a55cb7ff26ee175fc78f88a623e

Malware Config

Extracted

Family

vidar

Version

9.9

Botnet

231

C2

http://rapidbtcinvest.com/

Attributes
  • profile_id

    231

Targets

    • Target

      1b8e1993faa7d88c32a3cfba4af8db01b2ca57c7588b65bfe4bba68c74204c92

    • Size

      4.2MB

    • MD5

      aea7ce7cdb122cb3592a9cf011497f37

    • SHA1

      356631e8716e7e2e5007270d036d769e7765fbba

    • SHA256

      1b8e1993faa7d88c32a3cfba4af8db01b2ca57c7588b65bfe4bba68c74204c92

    • SHA512

      d1a83cc4c14cf50f07ad97bba1518000c748788d3d3cd2ec4686f2639ff4f2e31c75e74472571e257f93615bb537391799976a55cb7ff26ee175fc78f88a623e

    • 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