General

  • Target

    4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094

  • Size

    1.9MB

  • Sample

    220720-wfggfaeafp

  • MD5

    8bc1427b468c1d55db19c890800d9958

  • SHA1

    7a7af4c4690afd3850ee4fba61331f2a15dcb7a3

  • SHA256

    4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094

  • SHA512

    962ca67727de9781f754e05299b93896089b42c57f31dd2b73ed6494f7bec71e3a8af5c1fd5d02c2fd08053843f99f64f57648a399a64e286bc39cced52639ba

Malware Config

Extracted

Family

vidar

Version

14

Botnet

223

C2

http://klegrandlichgrum.com/

Attributes
  • profile_id

    223

Targets

    • Target

      4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094

    • Size

      1.9MB

    • MD5

      8bc1427b468c1d55db19c890800d9958

    • SHA1

      7a7af4c4690afd3850ee4fba61331f2a15dcb7a3

    • SHA256

      4e5c53c658bf541302395ab74b46437927d8e625d8560597fe06c03a041d0094

    • SHA512

      962ca67727de9781f754e05299b93896089b42c57f31dd2b73ed6494f7bec71e3a8af5c1fd5d02c2fd08053843f99f64f57648a399a64e286bc39cced52639ba

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • 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