Analysis by: Arianne Grace Dela Cruz
ALIASES:

Trojan:MSIL/Cryptor (MICROSOFT); HEUR:Trojan-Spy.MSIL.Noon.gen (KASPERSKY)

 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

Infection Channel: Dropped by other malware

This Trojan Spy may be dropped by other malware.

It executes commands from a remote malicious user, effectively compromising the affected system.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size: 1,297,408 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 11 Aug 2021
Payload: Connects to URLs/IPs, Steals information

Arrival Details

This Trojan Spy may be dropped by the following malware:

Installation

This Trojan Spy adds the following processes:

  • {Malware Directory}\{Malware Filename}
  • powershell.exe Add-MpPreference -ExclusionPath {Malware Directory}\{Malware Filename}

It injects codes into the following process(es):

  • spawned {Malware Directory}\{Malware Filename}

Backdoor Routine

This Trojan Spy executes the following commands from a remote malicious user:

  • Download - downloads a file to specified path
  • DownloadAndEx - downloads a file to specified path then execute it
  • OpenLink - opens a specific link in the browser
  • Cmd - execute commands via cmd

Download Routine

This Trojan Spy connects to the following URL(s) to download its configuration file:

  • https://{BLOCKED}.{BLOCKED}.213.135:30058

Information Theft

This Trojan Spy gathers the following data:

  • Gathers the following system information:
    • Username
    • Hardware ID
    • Keyboard Layout
    • Screen Resolution
    • Operating System
    • GPU Information
    • CPU Information
    • IP Address
    • Country
    • City
    • ZipCode
    • System Language
    • System Timezone
  • Gathers information from:
    • Browsers:
      • Chrome Based Browsers
      • Gecko Based Browsers
    • FTP Clients:
      • FileZilla
    • Messaging Applications:
      • Telegram
    • VPN:
      • NordVPN
      • OpenVPN
      • ProtonVPN
    • Wallets:
      • Armory
      • Atomic
      • Coinomi
      • Electrum
      • Ethereum
      • Exodus
      • Guarda
      • Jaxx
      • Data from wallet.dat
    • Others:
      • Steam
      • Discord
  • Browser Extensions:
    • Autofill data
    • Browser data (Login information, cookies) relating to the following wallets:
      • YoroiWallet
      • Tronlink
      • NiftyWallet
      • Metamask
      • MathWallet
      • Coinbase
      • BinanceChain
      • BraveWallet
      • GuardaWallet
      • EqualWallet
      • JaxxxLiberty
      • BitAppWallet
      • iWallet
      • Wombat
      • AtomicWallet
      • MewCx
      • GuildWallet
      • SaturnWallet
      • RoninWallet
  • Gathers the following data depending on the configurations received:
    • Browser profile (Login information, Cookies)
    • Ftp Connections (Login information)
    • Game Chat Files (Application information)
    • Game Launcher Files (Application information)
    • Installed Browsers Information
    • Message Client Files (Application information)
    • Installed Software
    • Security Software

Other Details

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

  • https://api.ip.sb/geoip
  • https://ipinfo.io/ip
  • https://api.ipify.org

It connects to the following website to send and receive information:

  • {BLOCKED}.{BLOCKED}.213.135:30058

It does the following:

  • It can avoid certain countries and IP addresses depending on the configuration received.

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 16.950.05
FIRST VSAPI PATTERN DATE: 06 Sep 2021
VSAPI OPR PATTERN File: 16.951.00
VSAPI OPR PATTERN Date: 07 Sep 2021

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.XXPE50FFF047

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.REDLINESTEALER.N

[ 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.REDLINESTEALER.N. 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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