Analysis by: Anthony Joe Melgarejo
ALIASES:

Troj/DwnLdr-MSW (Sophos), Trojan-Downloader.Win32.Banload.aafez (Kaspersky), Win32/TrojanDownloader.Banload.WHT (ESET)

 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.

  TECHNICAL DETAILS

File Size: 3,691,008 bytes
File Type: EXE
Initial Samples Received Date: 18 Aug 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 the following files:

  • %System Root%\EGTZQSSI\XXX90000.ZAQ
  • %System Root%\B5S.dat

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other System Modifications

This Trojan adds the following registry entries as part of its installation routine:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Associations
LowRiskFileTypes = ".exe;"

Other Details

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

  • http://checkip.dyndns.org
  • http://ip-api.com/json/

It connects to the following possibly malicious URL:

  • http://www.{BLOCKED}d.com/download/qyoYRcOuce/EDUARDO103.NX0