General

  • Target

    ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a

  • Size

    2.5MB

  • Sample

    220630-w29p4shff2

  • MD5

    8b18d8fa4c4ac43666384fc4f6dae808

  • SHA1

    88f5eab1250abe436a2f1d38c8912722ed153e95

  • SHA256

    ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a

  • SHA512

    ae86fb730a53aa0c1f83a6ded454c99588d7740c2425359ef21721c2214246e31de2ef13ffdb74b547b7e56a04db1f37e0d24580628e0e04dfd9c26fa47e389c

Malware Config

Extracted

Family

vidar

Version

35.8

Botnet

781

C2

http://mine2021.com/

Attributes
  • profile_id

    781

Targets

    • Target

      ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a

    • Size

      2.5MB

    • MD5

      8b18d8fa4c4ac43666384fc4f6dae808

    • SHA1

      88f5eab1250abe436a2f1d38c8912722ed153e95

    • SHA256

      ad20637da178238530a18a616ecf1fb1c80c57a52bce5eddf5c370ba0c9a690a

    • SHA512

      ae86fb730a53aa0c1f83a6ded454c99588d7740c2425359ef21721c2214246e31de2ef13ffdb74b547b7e56a04db1f37e0d24580628e0e04dfd9c26fa47e389c

    • 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.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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

1
T1497

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks