General

  • Target

    SecuriteInfo.com.Variant.Razy.654349.25703.22875

  • Size

    2.8MB

  • Sample

    201109-nzlmwk1kdx

  • MD5

    fd2f07014182ca8bb18ca2925bd3199e

  • SHA1

    2ebb4a508116d2b9c92a8acd59f8f5fa4475cb58

  • SHA256

    8f70770156516548bed55e29b19f1dc0a5ef6409a77e3b3e784c08ff86539022

  • SHA512

    f1ee75602c22205953bb0bbd29d6bd9c64a1ef5325a0045be87a179cd50ca0a944bbfb4110f31cd11800b3ee6de3e1f6b287fccad60876819e92915f7a3e3d93

Malware Config

Targets

    • Target

      SecuriteInfo.com.Variant.Razy.654349.25703.22875

    • Size

      2.8MB

    • MD5

      fd2f07014182ca8bb18ca2925bd3199e

    • SHA1

      2ebb4a508116d2b9c92a8acd59f8f5fa4475cb58

    • SHA256

      8f70770156516548bed55e29b19f1dc0a5ef6409a77e3b3e784c08ff86539022

    • SHA512

      f1ee75602c22205953bb0bbd29d6bd9c64a1ef5325a0045be87a179cd50ca0a944bbfb4110f31cd11800b3ee6de3e1f6b287fccad60876819e92915f7a3e3d93

    • 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