General

  • Target

    5bfb17b59da836cf0a67bf7f2340e4f70f89e578bbd14d3803291b48e5bdd814

  • Size

    2.5MB

  • Sample

    220724-ycws3aebck

  • MD5

    67ddce39f9afaa319bce36983848047b

  • SHA1

    11cbd9e43c8f4132831042f2ef4e48a842619bec

  • SHA256

    5bfb17b59da836cf0a67bf7f2340e4f70f89e578bbd14d3803291b48e5bdd814

  • SHA512

    4765068dcc329acb91f373736f71b8200eb5178ca84c7e855dd34fc635d54cc291cfdf0d2af1045643e2c6ce15e0f20cd10cf7724dbba5e10a221e7220a8d814

Malware Config

Extracted

Family

vidar

Version

10.8

Botnet

223

C2

http://idgent.top/

Attributes
  • profile_id

    223

Targets

    • Target

      5bfb17b59da836cf0a67bf7f2340e4f70f89e578bbd14d3803291b48e5bdd814

    • Size

      2.5MB

    • MD5

      67ddce39f9afaa319bce36983848047b

    • SHA1

      11cbd9e43c8f4132831042f2ef4e48a842619bec

    • SHA256

      5bfb17b59da836cf0a67bf7f2340e4f70f89e578bbd14d3803291b48e5bdd814

    • SHA512

      4765068dcc329acb91f373736f71b8200eb5178ca84c7e855dd34fc635d54cc291cfdf0d2af1045643e2c6ce15e0f20cd10cf7724dbba5e10a221e7220a8d814

    • 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.

    • 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