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TSPY_INFOSTEAL.TIDAOBV

July 24, 2018
 Analysis by: Augusto II Remillano
 ALIASES:

Trojan.MSIL.Crypt (Ikarus)

 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:

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 deletes itself after execution.

  TECHNICAL DETAILS

File Size:

416,768 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

02 Jul 2018

Payload:

Connects to URLs/IPs, Drops files, Steals information

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 folders:

  • %User Temp%\1Mo

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It drops the following files:

  • %User Temp%\1Mo\api-ms-win-core-console-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-datetime-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-debug-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-errorhandling-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-file-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-file-l1-2-0.dll
  • %User Temp%\1Mo\api-ms-win-core-file-l2-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-handle-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-heap-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-interlocked-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-libraryloader-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-localization-l1-2-0.dll
  • %User Temp%\1Mo\api-ms-win-core-memory-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-namedpipe-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-processenvironment-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-processthreads-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-processthreads-l1-1-1.dll
  • %User Temp%\1Mo\api-ms-win-core-profile-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-rtlsupport-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-string-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-synch-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-synch-l1-2-0.dll
  • %User Temp%\1Mo\api-ms-win-core-sysinfo-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-timezone-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-core-util-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-conio-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-convert-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-environment-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-filesystem-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-heap-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-locale-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-math-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-multibyte-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-private-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-process-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-runtime-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-stdio-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-string-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-time-l1-1-0.dll
  • %User Temp%\1Mo\api-ms-win-crt-utility-l1-1-0.dll
  • %User Temp%\1Mo\freebl3.dll
  • %User Temp%\1Mo\mozglue.dll
  • %User Temp%\1Mo\msvcp140.dll
  • %User Temp%\1Mo\nss3.dll
  • %User Temp%\1Mo\nssdbm3.dll
  • %User Temp%\1Mo\softokn3.dll
  • %User Temp%\1Mo\ucrtbase.dll
  • %User Temp%\1Mo\vcruntime140.dll
  • %Application Data%\tasklogon.exe
  • %User Temp%\1.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

It drops and executes the following files:

  • %User Temp%\{malware filename}.exe

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Information Theft

This Trojan Spy gathers the following data:

  • Memory Size
  • User name of active user
  • Admin status of active user
  • Hardware ID of affected machine
  • Windows Version

It gathers the following account information from any of the mentioned File Transfer Protocol (FTP) clients or file manager software:

  • FileZilla

It attempts to steal stored email credentials from the following:

  • Microsoft Outlook

It attempts to get stored information such as user names, passwords, and hostnames from the following browsers:

  • 360Browser
  • 7Star
  • Amigo
  • Brave
  • Bromium
  • CentBrowser
  • Chedot
  • Chromium
  • CocCoc
  • Comodo
  • Cyberfox
  • Elements Browser
  • Epic Privacy Browser
  • Go!
  • Google Chrome
  • Kometa
  • Mozilla Firefox
  • Mustang
  • Nichrome
  • Opera
  • Orbitum
  • Pale Moon
  • QIP Surf
  • RockMelt
  • Secure Browser
  • Sputnik
  • Subha
  • Superbird
  • TorBro
  • Torch
  • Uran
  • Vivaldi
  • Waterfox
  • Yandex
  • Internet Explorer / Microsoft Edge

Stolen Information

This Trojan Spy sends the gathered information via HTTP POST to the following URL:

  • http://{BLOCKED].{BLOCKED}.17.211/activation.php?key={encrypted stolen info}
  • http://{BLOCKED}n.ml/index.php

Other Details

This Trojan Spy does the following:

  • Creates a scheduled task named "DirectXComponentLibrary" to execute %Application Data%\tasklogon.exe every hour.
  • It connects to the following URL to download an updated copy of its dropped file:
    • http://{BLOCKED}.{BLOCKED}.17.211/files/1.exe
  • It attempts to gather information from the following instant messenger clients:
    • Pidgin
    • Psi+
  • It also attempts to gather cookies from the said browsers.

It deletes itself after execution.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.388.04

FIRST VSAPI PATTERN DATE:

18 Jul 2018

VSAPI OPR PATTERN File:

14.389.00

VSAPI OPR PATTERN Date:

19 Jul 2018

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 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

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.  
  • %User Temp%\1Mo

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.
  • %Application Data%\tasklogon.exe
  • %User Temp%\1.exe

Step 6

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_INFOSTEAL.TIDAOBV. 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 this Knowledge Base page for more information.

Step 7

Deleting Scheduled Tasks

The following {Task Name} - {Task to be run} listed should be used in the steps identified below:

  • DirectXComponentLibrary - %appdata%\tasklogon.exe

For Windows 2000, Windows XP, and Windows Server 2003:

  1. Open the Windows Scheduled Tasks. Click Start>Programs>Accessories>
    System Tools>Scheduled Tasks.
  2. Locate each {Task Name} values listed above in the Name column.
  3. Right-click on the said file(s) with the aforementioned value.
  4. Click on Properties. In the Run field, check for the listed {Task to be run}.
  5. If the strings match the list above, delete the task.

For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

  1. Open the Windows Task Scheduler. To do this:
    • On Windows Vista, Windows 7, and Windows Server 2008, click Start, type taskschd.msc in the Search input field, then press Enter.
    • On Windows 8, Windows 8.1, and Windows Server 2012, right-click on the lower left corner of the screen, click Run, type taskschd.msc, then press Enter.
  2. In the left panel, click Task Scheduler Library.
  3. In the upper-middle panel, locate each {Task Name} values listed above in the Name column.
  4. In the lower-middle panel, click the Actions tab. In the Details column, check for the {Task to be run} string.
  5. If the said string is found, delete the task.

Step 8

Scan your computer with your Trend Micro product to delete files detected as TSPY_INFOSTEAL.TIDAOBV. 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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