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W2KM_HANCITOR.YYSXA

November 29, 2016
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Spammed via email

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

It connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible. It gathers information and reports it to its servers.

  TECHNICAL DETAILS

File Size:

143,910 bytes

File Type:

DOC

Memory Resident:

Yes

Initial Samples Received Date:

07 Nov 2016

Payload:

Connects to URLs/IPs, Steals information

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Installation

This Trojan injects codes into the following process(es):

  • explorer.exe

Other Details

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

  • api.{BLOCKED}y.org

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

  • {BLOCKED}ransit.ru/ls5/gate.php
  • {BLOCKED}taleft.ru/ls5/gate.php
  • {BLOCKED}grolhem.com/ls5/gate.php

    Using ip {BLOCKED}.{BLOCKED}.149.178 and port 80

It does the following:

  • It contains a message that entices customer to enable macro.
  • It is capable of downloading and executing file on the affected system. As a result, behavior of the downloaded file is exhibited on the affected system.

However, as of this writing, the said sites are inaccessible.

This is the Trend Micro detection for Microsoft Word documents that are compromised through the insertion of a malicious macro.

It gathers the following information and reports it to its servers:

  • OS Version
  • IP Address
  • Machine GUID

    The information are posted to the server in the following format: GUID={machine guid}&BUILD=&INFO={info}&IP={IP address}&TYPE=1&WIN={OS version}

  SOLUTION

Minimum Scan Engine:

9.800

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

Restart in normal mode and scan your computer with your Trend Micro product for files detected as W2KM_HANCITOR.YYSXA. 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.


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