General

  • Target

    SecuriteInfo.com.Variant.Razy.666259.18937.228

  • Size

    3.1MB

  • Sample

    201109-4t5kk8yx6a

  • MD5

    058685ba83428d4295949d9fb64cbfd9

  • SHA1

    91e49d21e5abc910f857e9a3e20bb692e2c45e7b

  • SHA256

    2587f1479965f71d98a3f9ead9b9ae00fd71cb0efd00ce8843da9a8c443d0af9

  • SHA512

    96371bd66aef20f744bb4294b9bc5447e962688eae19e55523e0e7c5ea50b3e4229deea0cdf5eb0f09f2e58e2fb39168fd90bbefd642a96d254ddf49c15335ed

Malware Config

Targets

    • Target

      SecuriteInfo.com.Variant.Razy.666259.18937.228

    • Size

      3.1MB

    • MD5

      058685ba83428d4295949d9fb64cbfd9

    • SHA1

      91e49d21e5abc910f857e9a3e20bb692e2c45e7b

    • SHA256

      2587f1479965f71d98a3f9ead9b9ae00fd71cb0efd00ce8843da9a8c443d0af9

    • SHA512

      96371bd66aef20f744bb4294b9bc5447e962688eae19e55523e0e7c5ea50b3e4229deea0cdf5eb0f09f2e58e2fb39168fd90bbefd642a96d254ddf49c15335ed

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

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

    • Checks BIOS information in registry

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

    • 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

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks