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TSPY_TRICKBOT.AUTR

September 20, 2017
 Analysis by: Johnlery Triunfante
 ALIASES:

Trojan.Win32.Trickster.apx (KASPERSKY); Trojan.Trickybot (SYMANTEC)

 PLATFORM:

Windows

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

  • Threat Type: Trojan Spy

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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.

  TECHNICAL DETAILS

File Size:

483,328 bytes

File Type:

EXE

Initial Samples Received Date:

19 Sep 2017

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 drops the following copies of itself into the affected system and executes them:

  • %Application Data%\winapp\{malware name}.exe

(Note: %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 the following files:

  • %Application Data%\winapp\client_id
  • %Application Data%\winapp\config.conf
  • %Application Data%\winapp\group_tag
  • %Application Data%\winapp\Modules\injectDll32
  • %Application Data%\winapp\Modules\systeminfo32
  • %Application Data%\winapp\Modules\injectDll32_configs\dinj
  • %Application Data%\winapp\Modules\injectDll32_configs\dpost
  • %Application Data%\winapp\Modules\injectDll32_configs\sinj

(Note: %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 creates the following folders:

  • %Application Data%\winapp
  • %Application Data%\winapp\Modules
  • %Application Data%\winapp\Modules\injectDll32_configs

(Note: %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.)

Other Details

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

  • www.myexternalip.com

It connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.216.33
  • {BLOCKED}.{BLOCKED}.122.83
  • {BLOCKED}.{BLOCKED}.99.16
  • {BLOCKED}.{BLOCKED}.146.156