General

  • Target

    GTA5 Mod Menu.rar

  • Size

    6.3MB

  • Sample

    230406-rb4c7afc4z

  • MD5

    e15d331f28c82934f7e110662a991394

  • SHA1

    e62af9bada7ac419f87954a2bfb2ac78bf208dc6

  • SHA256

    bf4cf1798ba35624c5f589e3cb81f752b35262fc7c6458082a7b0d44ba6510dc

  • SHA512

    f3f1c27cf9375b18f451e655de1ff977f356d14bdf2a51c25f1550ff6b40237d04123af504c1ebb8ebae8560f9dd5023b598b239eefaf52cda5a7bf0b1167f73

  • SSDEEP

    98304:mb+0HsZOyGvEthQYd6Nev+WJjcrnNRYvGXSxx/3tFomYEtEt6BjfA6HL1cY9k5K:mbJHEtGCvXQrnNROWwdFomNttBTYs

Malware Config

Extracted

Family

vidar

Version

3.3

Botnet

49bd1304650cc9c7f3f131428d9e16c2

C2

https://steamcommunity.com/profiles/76561199492257783

https://t.me/justsometg

Attributes
  • profile_id_v2

    49bd1304650cc9c7f3f131428d9e16c2

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

Targets

    • Target

      Setup.exe

    • Size

      1023.0MB

    • MD5

      20435727abd593f6db2379c748289799

    • SHA1

      12db6bce4173a977c0ad4de36a16f152dbcf5e49

    • SHA256

      0f28b51ca82edd77e6d7f3626c8b66e6f04f6dfe48ff594f77ec6746a3c91968

    • SHA512

      df5bc6ec08ac446b4add78cf9d657c2d7339d1cc69ca34f5c0b1881da05f6c8001791367299bdb1429f79aba626bdc110dfe50de6f1348155de5cc28f7752c78

    • SSDEEP

      196608:4+hMmu0Vro/dFqg4cF3VjgY7lEGpDltGgC891SWAo0G:41m3OMEljl7lPftGgPuDr

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • 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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Impair Defenses

1
T1562

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

3
T1005

Impact

Service Stop

1
T1489

Tasks