General

  • Target

    SecuriteInfo.com.Variant.Razy.666259.23910.2558

  • Size

    3.0MB

  • Sample

    201109-ydsgthzk42

  • MD5

    f51ea0bf84ed5e1ffd4e44508e572990

  • SHA1

    c9979a8615456cb649a0effea5f962955209ba2b

  • SHA256

    cafafc019f410ecf18ae5f44a816e77e790e90a4720e5801b051113c0caa37bb

  • SHA512

    7d39ce5ec3eecd8373a801f8047a686f4643992c3a8abdd81f649b37636dc491a186485230e3368ed64530e4901e18152cf8fb1d9f82b55abe545a50d043d42c

Malware Config

Targets

    • Target

      SecuriteInfo.com.Variant.Razy.666259.23910.2558

    • Size

      3.0MB

    • MD5

      f51ea0bf84ed5e1ffd4e44508e572990

    • SHA1

      c9979a8615456cb649a0effea5f962955209ba2b

    • SHA256

      cafafc019f410ecf18ae5f44a816e77e790e90a4720e5801b051113c0caa37bb

    • SHA512

      7d39ce5ec3eecd8373a801f8047a686f4643992c3a8abdd81f649b37636dc491a186485230e3368ed64530e4901e18152cf8fb1d9f82b55abe545a50d043d42c

    • 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