Resubmissions

24-01-2022 18:12

220124-ws75xsgcf6 1

14-01-2022 15:34

220114-szqyfahceq 10

08-01-2022 19:45

220108-ygvfssdbh9 10

08-01-2022 19:45

220108-ygvfssdbh8 10

08-01-2022 19:34

220108-x95xkadbh3 8

07-01-2022 14:28

220107-rsy5sscda4 10

06-01-2022 19:07

220106-xszdfsbee2 10

General

  • Target

    https://youtube.com

  • Sample

    220108-ygvfssdbh9

Malware Config

Targets

    • Target

      https://youtube.com

    • Detected pubg phishing page

    • Modifies system executable filetype association

    • Registers COM server for autorun

    • Blocklisted process makes network request

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Windows Firewall

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • 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

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

New Service

1
T1050

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

New Service

1
T1050

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

4
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

6
T1012

System Information Discovery

7
T1082

Security Software Discovery

1
T1063

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Collection

Data from Local System

1
T1005

Tasks