Analysis by: Francesca Villasanta
 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted: No

  • 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.

  TECHNICAL DETAILS

File Size: 1,022,976 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 05 Jun 2023
Payload: Drops files, Steals information, Creates files

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.

Installation

This Trojan Spy drops the following files:

  • {Malware Path}\error.txt ← Logs the error encountered

Information Theft

This Trojan Spy gathers the following data:

  • Browser data (Google Chrome, Microsoft Edge, Opera, Brave, Firefox):
    • Profiles
    • Login Data
    • Network Cookies
    • Local Extension Settings
  • Browser data for each profile from Google Chrome, Microsoft Edge, Opera, Brave:
    • Name
    • Database
    • Cookies
    • Folder
    • Extensions
  • Browser profile data from Mozilla Firefox:
    • Certificates
    • Cookies
    • Keys
    • Login data
  • Maachine SID, GUID, and Key
  • The following can also be gathered depending on the settings in the configuration file:
    • Cryptocurrency browser wallet extension
    • Browse for specific files
    • Browse for files that contains certain strings in their filename
    • Browse for specific folders
    • Browse for files based on a max size setting

Stolen Information

The stolen information is saved in the following file:

  • {Host IP}.json.xz

Other Details

This Trojan Spy does the following:

  • It requires the following files to proceed to its routine:
    • {Malware Path}\remote_config.json ← configuration file
    • {Malware Path}\{"target" file name specified in remote_config.json} ← list of targeted hosts
  • It connects to the list of targeted hosts via SMB share.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 18.496.05
FIRST VSAPI PATTERN DATE: 08 Jun 2023
VSAPI OPR PATTERN File: 18.497.00
VSAPI OPR PATTERN Date: 09 Jun 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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.  
  • {Malware Path}\error.txt
  • {Malware Path}\{Host IP}.json.xz

Step 4

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win64.CONFLOAD.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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