Resubmissions

09/05/2024, 18:25

240509-w2nsmsbc5610

09/05/2024, 08:53

240509-ks9szahf2w10

09/05/2024, 08:52

240509-ks3pnace251

08/05/2024, 09:27

240508-le3m6sdf7t10

07/05/2024, 10:53

240507-my8tzach4v5

05/05/2024, 15:20

240505-sqqlbadg5s5

04/05/2024, 12:20

240504-phv92sgf2410

04/05/2024, 12:17

240504-pf52gage4910

03/05/2024, 11:11

240503-naq5pafb2910

30/04/2024, 17:26

240430-v1anysbf4y7

General

  • Target
    https://github.com
  • Sample240509-w2nsmsbc56

Malware Config

Extracted

Family
  • vidar

Version
  • 9.2

Botnet
  • 90055089a554b801602b3ac265dc570c

C2
  • https://steamcommunity.com/profiles/76561199677575543

  • https://t.me/snsb82

Attributes
  • profile_id_v2

    90055089a554b801602b3ac265dc570c

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0

Targets

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detect Vidar Stealer

    • Detect ZGRat V1

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Nirsoft

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Maps connected drives based on registry

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks