General

  • Target

    44bcd2fec39f93c4968df77703a28eb4ab000e8fc9ea0f5d0e0c17e0c3b5e9bb

  • Size

    770KB

  • Sample

    210721-w1h1n859bj

  • MD5

    ce324913d753bb835c2caaeaf4cd39dc

  • SHA1

    7f29f8eaaebc3da820004ec81aa1223e67087698

  • SHA256

    44bcd2fec39f93c4968df77703a28eb4ab000e8fc9ea0f5d0e0c17e0c3b5e9bb

  • SHA512

    e2311ab499cb66b9b31431b0eb0c87d3bfc955a043d0c250ff38a7df2693d589b74a36f8910d88e4a706ec6716346a0c021e28280ae807cf2d5606453a430e24

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      44bcd2fec39f93c4968df77703a28eb4ab000e8fc9ea0f5d0e0c17e0c3b5e9bb

    • Size

      770KB

    • MD5

      ce324913d753bb835c2caaeaf4cd39dc

    • SHA1

      7f29f8eaaebc3da820004ec81aa1223e67087698

    • SHA256

      44bcd2fec39f93c4968df77703a28eb4ab000e8fc9ea0f5d0e0c17e0c3b5e9bb

    • SHA512

      e2311ab499cb66b9b31431b0eb0c87d3bfc955a043d0c250ff38a7df2693d589b74a36f8910d88e4a706ec6716346a0c021e28280ae807cf2d5606453a430e24

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • 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

    • Adds Run key to start application

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

2
T1112

Install Root Certificate

1
T1130

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