General

  • Target

    d4753f60ae5d5ceb1187c16338b1c4e47aeef2543b119b8e3efd3cfeb5201c59

  • Size

    717KB

  • Sample

    210722-54qj332chn

  • MD5

    df5fd44b827d88cdeb891aaf1cac8558

  • SHA1

    4ef18e3278e98ea7bf1ed963e6f0d22b694526de

  • SHA256

    d4753f60ae5d5ceb1187c16338b1c4e47aeef2543b119b8e3efd3cfeb5201c59

  • SHA512

    af5ab0b4b983b6001eb8555a48f79854a7daa653685fb337ecfb0f70c18f71219a3a9795dfb834248c8c6d3a7cfd4f8bfc65b97593c9eaa6b3b0c71587b032ac

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

517

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    517

Targets

    • Target

      d4753f60ae5d5ceb1187c16338b1c4e47aeef2543b119b8e3efd3cfeb5201c59

    • Size

      717KB

    • MD5

      df5fd44b827d88cdeb891aaf1cac8558

    • SHA1

      4ef18e3278e98ea7bf1ed963e6f0d22b694526de

    • SHA256

      d4753f60ae5d5ceb1187c16338b1c4e47aeef2543b119b8e3efd3cfeb5201c59

    • SHA512

      af5ab0b4b983b6001eb8555a48f79854a7daa653685fb337ecfb0f70c18f71219a3a9795dfb834248c8c6d3a7cfd4f8bfc65b97593c9eaa6b3b0c71587b032ac

    • 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