TrojanSpy.MSIL.ERAWXI.A

 Analysis by: Karen Ivy Titiwa

 ALIASES:

Gen:Variant.Ursu.718268 (BITDEFENDER); Trojan.MSIL.Vmprotect(IKARUS)

 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. It deletes the initially executed copy of itself.

  TECHNICAL DETAILS

File Size:

298,500 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

09 Apr 2020

Payload:

Drops files, Connects to URLs/IPs, Deletes 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 copies of itself into the affected system:

  • %AppDataLocal%\Microsoft\Windows\{malware name}.exe

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It modifies file attributes to make files hidden.

Information Theft

This Trojan Spy gathers the following data:

  • Credentials from the following applications:
    • Google Chrome
    • Yandex Browser
    • 360Chrome
    • Comodo Dragon
    • ChromePlus
    • Chromium
    • Torch
    • Brave-Browser
    • Iridium
    • 7Star
    • Amigo
    • CentBrowser
    • Chedot
    • CocCoc Browser
    • Elements Browser
    • Epic Privacy Browser
    • Kometa
    • Orbitum
    • Sputnik
    • Uran
    • Vivaldi
    • Citrio
    • Coowon
    • Liebao
    • QIP Surf
    • Microsoft Edge
  • Cookies stored from the following application:
    • RobloxPlayerBeta
  • Retrieves stored discord token

It stores collected data in the following file(s):

  • %AppDataLocal%\{random file name}.txt

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It captures screenshots of the victim’s machines and saves it to an image file named:

  • %AppDataLocal%\{filename}.png

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other Details

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

  • https://{BLOCKED}dapp.com/api/webhooks/697478639528312882/4AJ-0gAW3RhIKgUR03B9-lBlI6COhx9ogYtbreWYDQEdw_kiMWzmwM0OYVNcmytCgDfX

It drops the following file(s)/component(s):

  • %User Profile%\Documents\IDF.txt

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It does the following:

  • It does not perform its intended routine if the following service are running:
    • QEMU-GA
    • VBoxService

It deletes the initially executed copy of itself.

It deletes the following files to remove its traces in the system:

  • %AppDataLocal%\{random file name}.txt

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.794.03

FIRST VSAPI PATTERN DATE:

09 Apr 2020

VSAPI OPR PATTERN File:

15.795.00

VSAPI OPR PATTERN Date:

10 Apr 2020

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.XXPE50FFF034

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.ERAWXI.A

[ 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

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.
  • %User Profile%\Documents\IDF.txt
  • %AppDataLocal%\{random file name}.txt
  • %AppDataLocal%\{filename}.png
  • %AppDataLocal%\Microsoft\Windows\{malware name}.exe

Step 6

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