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TrojanSpy.MSIL.NEGASTEAL.RJAHSPE

April 06, 2023
 Analysis by: Charles Adrian Marty
 ALIASES:

Trojan:MSIL/AgentTesla.MBCB!MTB (MICROSOFT)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 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.

It gathers certain information on the affected computer.

  TECHNICAL DETAILS

File Size:

884,736 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

03 Apr 2023

Payload:

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

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 adds the following processes:

  • {Malware Filepath}\{Malware Filename}.exe

Information Theft

This Trojan Spy gathers the following information on the affected computer:

  • Time
  • Username
  • Computer Name
  • OS Fullname
  • CPU Information
  • RAM Information
  • IP Address

It gathers the following data:

  • Credentials from the following web browsers:
    • 360 Chrome
    • 7Star
    • Amigo
    • Blackhawk
    • Brave
    • Cent
    • Chedot
    • ChromePlus
    • Chromium
    • Citrio
    • CocCoc
    • Comodo Dragon
    • Cool Novo
    • Coowon
    • Cyberfox
    • Elements
    • Epic Privacy
    • Falkon
    • Firefox
    • Flock
    • Google Chrome
    • Icecat
    • IceDragon
    • Iridium
    • K-Meleon
    • Kometa
    • Liebao
    • Microsoft Edge
    • Opera
    • Orbitum
    • Pale Moon
    • QIP Surf
    • QQ Browser
    • Safari
    • SeaMonkey
    • Sleipnir 6
    • Sputnik
    • Torch
    • UCBrowser
    • Uran
    • Vivaldi
    • Waterfox
    • Yandex

  • Credentials from the following applications:
    • cftp
    • CoreFTP
    • FileZilla
    • FlashFXP
    • FTP Commander
    • FTP Commander Deluxe
    • FTPGetter
    • FTP Navigator
    • SmartFTP
    • WinSCP
    • NordVPN
    • OpenVPN
    • Private Internet Access
    • TigerVNC
    • TightVNC
    • UltraVNC
    • WinVNC3
    • WinVNC4
    • Apple
    • Microsoft
    • Internet Downloader Manager
    • JDownloader
    • MySQL Workbench
    • SQLite
    • Discord Canary
    • Discord PTB
    • Trillian
    • Psi
    • Psi+
    • Eudora
    • Becky!
    • ClawsMail
    • eM Client
    • Foxmail
    • IncrediMail
    • MailBird
    • Opera Mail
    • Outlook
    • PocoMail
    • PostBox
    • The Bat!
    • Thunderbird
    • Windows Mail App

  • Credentials from the following vaults:
    • Windows Secure Note
    • Windows Web Password Credential
    • Windows Credential Picker Protector
    • Web Credentials
    • Windows Credentials
    • Windows Domain Certificate Credential
    • Windows Domain Password Credential
    • Windows Extended Credential

Stolen Information

This Trojan Spy sends the data it gathers to the following email addresses via SMTP:

  • Host: us2.smtp.{BLOCKED}stbox.com
    Email: {BLOCKED}elzen@toponions.com
    Password: @DdvZql6

Other Details

This Trojan Spy connects to the following URL(s) to get the affected system's IP address:

  • api.{BLOCKED}y.org

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

18.366.02

FIRST VSAPI PATTERN DATE:

06 Apr 2023

VSAPI OPR PATTERN File:

18.367.00

VSAPI OPR PATTERN Date:

07 Apr 2023

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

     
    • TROJ.Win32.TRX.XXPE50FFF067

Step 2

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 3

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 4

Identify and terminate files detected as TrojanSpy.MSIL.NEGASTEAL.RJAHSPE

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 5

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.MSIL.NEGASTEAL.RJAHSPE. 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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