General

  • Target

    Setup.exe

  • Size

    40.0MB

  • Sample

    240629-qxxl4a1gnp

  • MD5

    36408e074e73dd9c328bfbddebe68c3e

  • SHA1

    883d5d71e3adba2962eb84f42b5687dde8f1a442

  • SHA256

    8c984d1cd3cdcfa53d735568c02ec35e0b7104da679442c275329e0748423d38

  • SHA512

    99bec46233b4361b22e3b51a999b00c03052b6ddd7c035b80a65f5c08a3b81473c68be8d39a0415d2ea8966565e94a35b623e3ab8dc6a1ea6abc5c17e4910333

  • SSDEEP

    98304:F9sgNLBXKolKOUnOqoDJA669v/XH5bPGroIk:F6gdTMrKJAJlJzD

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Targets

    • Target

      Setup.exe

    • Size

      40.0MB

    • MD5

      36408e074e73dd9c328bfbddebe68c3e

    • SHA1

      883d5d71e3adba2962eb84f42b5687dde8f1a442

    • SHA256

      8c984d1cd3cdcfa53d735568c02ec35e0b7104da679442c275329e0748423d38

    • SHA512

      99bec46233b4361b22e3b51a999b00c03052b6ddd7c035b80a65f5c08a3b81473c68be8d39a0415d2ea8966565e94a35b623e3ab8dc6a1ea6abc5c17e4910333

    • SSDEEP

      98304:F9sgNLBXKolKOUnOqoDJA669v/XH5bPGroIk:F6gdTMrKJAJlJzD

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks