General

  • Target

    c921deff990ad768d6a52d1be8bc6672c463917194df4b9e1d6cfabcdc2b23a8

  • Size

    728KB

  • Sample

    211016-fxtkbscedm

  • MD5

    642193295f94dc3de2a911377a7de238

  • SHA1

    09dd593f8a4b2ead980f2906a7d03727b4651c85

  • SHA256

    c921deff990ad768d6a52d1be8bc6672c463917194df4b9e1d6cfabcdc2b23a8

  • SHA512

    d23dd86d6b56e7d3c0ee6bbc595a688caee4d5c6d388c1905098b0362b6dfbade6ff64df6a198c594ca611ddc4780de6b13340b4f78295425d5c256b9c02f287

Malware Config

Extracted

Family

vidar

Version

41.4

Botnet

1008

C2

https://mas.to/@sslam

Attributes
  • profile_id

    1008

Targets

    • Target

      c921deff990ad768d6a52d1be8bc6672c463917194df4b9e1d6cfabcdc2b23a8

    • Size

      728KB

    • MD5

      642193295f94dc3de2a911377a7de238

    • SHA1

      09dd593f8a4b2ead980f2906a7d03727b4651c85

    • SHA256

      c921deff990ad768d6a52d1be8bc6672c463917194df4b9e1d6cfabcdc2b23a8

    • SHA512

      d23dd86d6b56e7d3c0ee6bbc595a688caee4d5c6d388c1905098b0362b6dfbade6ff64df6a198c594ca611ddc4780de6b13340b4f78295425d5c256b9c02f287

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • Vidar Stealer

    • Downloads MZ/PE file

    • Loads dropped DLL

    • 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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks