Analysis by: Pearl Charlaine Espejo

ALIASES:

Trojan-Downloader.BAT.Agent.mt (Kaspersky); Trojan-Downloader.BAT.Agent (Ikarus); Trojan.Win32.Downloader.mt (Baidu-International)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan 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: 552,015 bytes
File Type: EXE
Initial Samples Received Date: 01 May 2015

Arrival Details

This Trojan 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 drops and executes the following files:

  • %User Temp%\wget.exe
  • %User Temp%\get.bat
  • %User Temp%\25.08.2014.doc

(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.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}loads.file-attachments.ru/loads/setup_updates.exe
  • http://{BLOCKED}loads.file-attachments.ru/loads/install_flashplayer_aih.exe
  • http://{BLOCKED}s.{BLOCKED}min-ru.ru/updater.php

It deletes itself after execution.