General

  • Target

    fab171c028be8cdb8f69811d7dcb5a47916cdad0e201cefb6e2c0af0b644b9a8

  • Size

    1.8MB

  • Sample

    220524-bk6xnsbda2

  • MD5

    36595ee8e63227373eca92b8d2a1328e

  • SHA1

    6daf19a3e6c13fa4b7b768a3b1c2b314ed5e2858

  • SHA256

    fab171c028be8cdb8f69811d7dcb5a47916cdad0e201cefb6e2c0af0b644b9a8

  • SHA512

    ce01571059affb9d325b9aea3b7064042e599157e145fb8e79a3a09b769027ebfa91b8669fb050c859d783e095a05162cfc0c92dbe626c45c351a8d22e8e4827

Malware Config

Extracted

Family

vidar

Version

13.8

Botnet

223

C2

http://cafalife.com/

Attributes
  • profile_id

    223

Targets

    • Target

      fab171c028be8cdb8f69811d7dcb5a47916cdad0e201cefb6e2c0af0b644b9a8

    • Size

      1.8MB

    • MD5

      36595ee8e63227373eca92b8d2a1328e

    • SHA1

      6daf19a3e6c13fa4b7b768a3b1c2b314ed5e2858

    • SHA256

      fab171c028be8cdb8f69811d7dcb5a47916cdad0e201cefb6e2c0af0b644b9a8

    • SHA512

      ce01571059affb9d325b9aea3b7064042e599157e145fb8e79a3a09b769027ebfa91b8669fb050c859d783e095a05162cfc0c92dbe626c45c351a8d22e8e4827

    • 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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • 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.

    • Checks whether UAC is enabled

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks