General

  • Target

    2716e1c86f3a9c1a4f84eadba40a8b6e80c7ee1fd1a39729c7351b7f85232b7f

  • Size

    4.3MB

  • Sample

    220616-grckasechl

  • MD5

    52bb850d63e79db32342238cb2277bc8

  • SHA1

    233fbda8e5e7506aa57253f40f66b2b5ea99642b

  • SHA256

    2716e1c86f3a9c1a4f84eadba40a8b6e80c7ee1fd1a39729c7351b7f85232b7f

  • SHA512

    9da46e25517815b6d586f899e9374b53826799b89b988af44137c19cec5ea2b9a65b79e99cffa093471e1c5bedecc580b10f1a2824940cb79b9241a0c2f57a0c

Malware Config

Extracted

Family

vidar

Version

10.1

Botnet

231

C2

http://tribecaflatstore.com/

Attributes
  • profile_id

    231

Targets

    • Target

      2716e1c86f3a9c1a4f84eadba40a8b6e80c7ee1fd1a39729c7351b7f85232b7f

    • Size

      4.3MB

    • MD5

      52bb850d63e79db32342238cb2277bc8

    • SHA1

      233fbda8e5e7506aa57253f40f66b2b5ea99642b

    • SHA256

      2716e1c86f3a9c1a4f84eadba40a8b6e80c7ee1fd1a39729c7351b7f85232b7f

    • SHA512

      9da46e25517815b6d586f899e9374b53826799b89b988af44137c19cec5ea2b9a65b79e99cffa093471e1c5bedecc580b10f1a2824940cb79b9241a0c2f57a0c

    • 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