Analysis by: Anthony Joe Melgarejo
 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

Tamaño del archivo 355,840 bytes
Tipo de archivo EXE
Fecha de recepción de las muestras iniciales 28 Dec 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 copies of itself into the affected system and executes them:

  • %System Root%\{random folder name}\{random file name 1}.exe
  • %System Root%\{random folder name}\{random file name 2}.exe
  • %System Root%\{random folder name}\{random file name 3}.exe

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

It creates the following folders:

  • %System Root%\{random folder name}
  • %Windows%\{random folder name}

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

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{value name} = "%System Root%\{random folder name}\{random file name 1}.exe"

Dropping Routine

This Trojan drops the following files:

  • %System Root%\{random folder name}\{random file name 4}
  • %System Root%\{random folder name}\{random file name 5}
  • %System Root%\{random folder name}\{random file name 6}
  • %Windows%\{random folder name}\{random file name 2}

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

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}character.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}ngbicycle.net/index.php
  • http://{BLOCKED}ngbridge.net/index.php
  • http://{BLOCKED}ngexcept.net/index.php
  • http://{BLOCKED}ngwhose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}character.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}character.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}gbicycle.net/index.php
  • http://{BLOCKED}gbridge.net/index.php
  • http://{BLOCKED}gexcept.net/index.php
  • http://{BLOCKED}gwhose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}character.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}icycle.net/index.php
  • http://{BLOCKED}ridge.net/index.php
  • http://{BLOCKED}xcept.net/index.php
  • http://{BLOCKED}hose.net/index.php
  • http://{BLOCKED}ntbicycle.net/index.php
  • http://{BLOCKED}ntbridge.net/index.php
  • http://{BLOCKED}ntexcept.net/index.php
  • http://{BLOCKED}ntwagon.net/index.php
  • http://{BLOCKED}ntwhose.net/index.php
  • http://{BLOCKED}ebicycle.net/index.php
  • http://{BLOCKED}ebridge.net/index.php
  • http://{BLOCKED}eexcept.net/index.php
  • http://{BLOCKED}ewagon.net/index.php
  • http://{BLOCKED}ewagon.net/index.php
  • http://{BLOCKED}ewhose.net/index.php
  • http://{BLOCKED}ebicycle.net/index.php
  • http://{BLOCKED}eboard.net/index.php
  • http://{BLOCKED}ebridge.net/index.php
  • http://{BLOCKED}echaracter.net/index.php
  • http://{BLOCKED}eenter.net/index.php
  • http://{BLOCKED}eexcept.net/index.php
  • http://{BLOCKED}eladder.net/index.php
  • http://{BLOCKED}ewhose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}bicycle.net/index.php
  • http://{BLOCKED}board.net/index.php
  • http://{BLOCKED}bridge.net/index.php
  • http://{BLOCKED}character.net/index.php
  • http://{BLOCKED}enter.net/index.php
  • http://{BLOCKED}except.net/index.php
  • http://{BLOCKED}ladder.net/index.php
  • http://{BLOCKED}whose.net/index.php
  • http://{BLOCKED}icycle.net/index.php
  • http://{BLOCKED}oard.net/index.php
  • http://{BLOCKED}ridge.net/index.php
  • http://{BLOCKED}haracter.net/index.php
  • http://{BLOCKED}nter.net/index.php
  • http://{BLOCKED}xcept.net/index.php
  • http://{BLOCKED}adder.net/index.php
  • http://{BLOCKED}hose.net/index.php
  • http://{BLOCKED}icycle.net/index.php
  • http://{BLOCKED}ridge.net/index.php
  • http://{BLOCKED}xcept.net/index.php
  • http://{BLOCKED}hose.net/index.php
  • http://{BLOCKED}thbicycle.net/index.php
  • http://{BLOCKED}thboard.net/index.php
  • http://{BLOCKED}thbridge.net/index.php
  • http://{BLOCKED}thcharacter.net/index.php
  • http://{BLOCKED}thenter.net/index.php
  • http://{BLOCKED}thexcept.net/index.php
  • http://{BLOCKED}thladder.net/index.php
  • http://{BLOCKED}thwhose.net/index.php

NOTES:

The variable {value name} may be any of the following:

  • Cache Level Desktop Encrypting SPP
  • Debugger Connectivity Multimedia RPC Coordinator
  • Desktop AutoConnect Installer Link
  • Drive Auto Visual TPM Process
  • Networking Time Provider
  • Port Color Workstation Keying
  • Problem Health UserMode Key Redirector
  • Provider Mapper Management Application
  • Receiver Base Cryptographic ActiveX Task
  • Reporting Modules Driver Protocol
  • SNMP Control Device Intelligent DHCP
  • Solutions Firewall PC Adapter Scheduler
  • Tablet Server Logs Link Procedure