TrojanSpy.MSIL.NEGASTEAL.RJAHSHX

 Analysis by: Khristian Joseph Morales

 ALIASES:

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

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

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 terminates itself if it detects it is being run in a virtual environment.

  TECHNICAL DETAILS

File Size:

1,095,168 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

31 Mar 2022

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:

  • powershell Add-MpPreference -ExclusionPath "{Malware File Path}\{Malware Filename}.exe"
  • {Malware File Path}\{Malware Filename}.exe

It injects codes into the following process(es):

  • {Malware File Path}\{Malware Filename}.exe

Information Theft

This Trojan Spy gathers the following data:

  • Current Time
  • Username
  • Computer Name
  • OS Fullname
  • CPU Information
  • RAM Information
  • IP Address
  • Browser cookies
  • Credentials from the following applications:
    • 360Chrome
    • 7Star
    • Amigo
    • Blackhawk
    • Brave
    • Cent
    • Chedot
    • Chrome
    • Chromium
    • Citrio
    • Coccoc
    • Comodo Dragon
    • Coolnovo
    • Coowon
    • Cyberfox
    • Elements
    • Epic Privacy
    • Falkon
    • Firefox
    • Flock
    • Icecat
    • IceDragon
    • Internet Explorer
    • Iridium
    • K-Meleon
    • Kometa
    • Liebao
    • Microsoft Edge
    • Opera
    • Orbitum
    • PaleMoon
    • QIP Surf
    • QQBrowser
    • SeaMonkey
    • Sleipnir 6
    • Sputnik
    • Torch
    • UCBrowser
    • Uran
    • Vivaldi
    • Waterfox
    • Yandex
    • FTPCommander
    • FTPGetter
    • FileZilla
    • WinSock
    • FTP Navigator
    • SmartFTP
    • CoreFTP
    • WinSCP
    • RealVNC4.x
    • RealVNC3.x
    • TightVNC
    • TigerVNC
    • UltraVNC
    • MySQL Workbench
    • FlashFXP
    • MailBird
    • IncrediMail
    • PocoMail
    • eM Client
    • PostBox
    • TheBat!
    • ThunderBird
    • ClawsMail
    • Opera Mail
    • Eudora
    • Becky!
    • Foxmail
    • Outlook
    • NordVPN
    • OpenVPN
    • PIA VPN
    • Trillian
    • Psi
    • Psi+
    • Apple
    • Microsoft
    • Internet Download Manager
  • 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: smtp.{BLOCKED}bana.com
    Email: {BLOCKED}h@{BLOCKED}bana.com
    Password: drohDpW7

Other Details

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

  • https://api.{BLOCKED}y.org

It terminates itself if it detects it is being run in a virtual environment.

It checks if the following virtual machine- or sandbox-related registry keys are present in the affected system:

HKEY_LOCAL_MACHINE\SOFTWARE\Oracle\
VirtualBox Guest Additions

HKEY_LOCAL_MACHINE\SOFTWARE\VMware, Inc.\
VMware Tools

It checks if the following virtual machine- or sandbox-related registry entries are present in the affected system:

HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\
Scsi\Scsi Port 0\Scsi Bus 0\
Target Id 0\Logical Unit Id 0
Identifier = {String}

HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\
Scsi\Scsi Port 1\Scsi Bus 0\
Target Id 0\Logical Unit Id 0
Identifier = {String}

HKEY_LOCAL_MACHINE\HARDWARE\DEVICEMAP\
Scsi\Scsi Port 2\Scsi Bus 0\
Target Id 0\Logical Unit Id 0
Identifier = {String}

HKEY_LOCAL_MACHINE\HARDWARE\Description\
System
SystemBiosVersion = {String}

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Disk\Enum
0 = {String}

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\
0000
DriverDesc = {String}

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\
0000\Settings
Device Description = {String}

HKEY_LOCAL_MACHINE\HARDWARE\Description\
System
VideoBiosVersion = VIRTUALBOX

It uses Windows Management Instrumentation (WMI) to do the following:

  • It queries Video controller and check for the following string
    • VM Additions S3 Trio32/64
    • S3 Trio32/64
    • VirtualBox Graphics Adapter
    • VMware SVGA II
    • VMWARE

NOTES:

The registry data {String} above can contain any of the following:

  • VMWARE
  • VBOX
  • QEMU

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

17.476.06

FIRST VSAPI PATTERN DATE:

31 Mar 2022

VSAPI OPR PATTERN File:

17.477.00

VSAPI OPR PATTERN Date:

01 Apr 2022

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:

     
    • Ransom.Win32.TRX.XXPE50FFF055

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.RJAHSHX

[ 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.RJAHSHX. 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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