TrojanSpy.Win64.MOCKBIT.A

November 23, 2023
 Analysis by: Raighen Sanchez
 ALIASES:

Win64:TrojanX-gen [Trj] (AVAST)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

174,080 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

20 Nov 2023

Payload:

Collects system information, Connects to URLs/IPs, Steals information

Arrival Details

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Information Theft

This Trojan Spy gathers the following data:

  • Hostname
  • Username
  • System Date and Time
  • Timezone Settings → checks if timezone is operating in daylight date
  • Processor Information
  • OS Architecture
  • System Language

Other Details

This Trojan Spy connects to the following website to send and receive information:

  • https://{BLOCKED}.{BLOCKED}.{BLOCKED}.174

It does the following:

  • It retrieves the system language by checking the keyboard layout using keyboard.ini
  • It continuously tries to establish a TCP connection with the mentioned IP address.

However, as of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.836.02

FIRST VSAPI PATTERN DATE:

23 Nov 2023

VSAPI OPR PATTERN File:

18.837.00

VSAPI OPR PATTERN Date:

24 Nov 2023

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 2

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win64.MOCKBIT.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check the following Trend Micro Support pages for more information:


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