TrojanSpy.Win32.TRICKBOT.DLL

 Analysis by: Karen Ivy Titiwa

 ALIASES:

Trojan.GenericKD.42683317 (BITDEFENDER); Trojan-Banker.Win32.Cridex.jkr (KASPERSKY)

 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.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

882,176 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

02 Mar 2020

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.

Information Theft

This Trojan Spy gathers the following data:

  • Credentials depending on the following Operating system:
    • Windows Vista
    • Windows 2000
    • Windows Server 2003
    • Windows XP
    • Windows 7
    • Windows 8
    • Windows 8.1
    • Windows 10
    • Windows Server 2008 R2
    • Windows Server 2008
    • Windows Server 2012 R2
    • Windows Server 2012
    • Windows 10 Server
  • OS Information:
    • Name
    • Caption
    • Version
    • Architecture
  • Memory Information:
    • Total Physical Memory
    • Available Physical Memory
  • System Information:
    • User Name
    • Computer Name
    • Last Boot up Time
  • Network Information:
      Uses the following commands:
    • cmd.exe /c ipconfig /all
    • cmd.exe /c net config workstation
    • cmd.exe /c net view /all
    • cmd.exe /c net view /all /domain
    • cmd.exe /c nltest /domain_trusts
    • cmd.exe /c nltest /domain_trusts /all_trusts
  • Others:
    • Site Name
    • Domain Name
    • Forest Name
    • Domain Controller

Other Details

This Trojan Spy connects to the following website to send and receive information:

  • {BLOCKED}.{BLOCKED}.193:443
  • {BLOCKED}.{BLOCKED}.202.120:443
  • {BLOCKED}.{BLOCKED}.96.43:443
  • {BLOCKED}.{BLOCKED}.13.2:449
  • {BLOCKED}.{BLOCKED}.173.186:449
  • {BLOCKED}.{BLOCKED}.104.139:449
  • {BLOCKED}.{BLOCKED}.28.146:449
  • {BLOCKED}.{BLOCKED}.157.42:449
  • {BLOCKED}.{BLOCKED}8.224:449
  • {BLOCKED}.{BLOCKED}1.38:449
  • {BLOCKED}.{BLOCKED}.235.36:449
  • {BLOCKED}.{BLOCKED}.85.103:449
  • {BLOCKED}.{BLOCKED}.134.18:449
  • {BLOCKED}.{BLOCKED}.150.23:449
  • {BLOCKED}.{BLOCKED}.253.190:449
  • {BLOCKED}.{BLOCKED}.121.99:449
  • {BLOCKED}.{BLOCKED}3.71:449
  • {BLOCKED}.{BLOCKED}.165.75:449
  • {BLOCKED}.{BLOCKED}.19.18:449
  • {BLOCKED}.{BLOCKED}15.114:449
  • {BLOCKED}.{BLOCKED}.216.177:449
  • {BLOCKED}.{BLOCKED}.142.238:449
  • {BLOCKED}.{BLOCKED}.91.240:449
  • {BLOCKED}.{BLOCKED}.207.202:449
  • {BLOCKED}.{BLOCKED}.253.164:447
  • {BLOCKED}.{BLOCKED}96.108:447
  • {BLOCKED}.{BLOCKED}.196:447
  • {BLOCKED}.{BLOCKED}96.152:447
  • {BLOCKED}.{BLOCKED}0.163:447
  • {BLOCKED}.{BLOCKED}.197:447
  • {BLOCKED}.{BLOCKED}02.248:447
  • {BLOCKED}.{BLOCKED}164.191:447
  • {BLOCKED}.{BLOCKED}218.32:447
  • {BLOCKED}.{BLOCKED}9.26:447
  • {BLOCKED}.{BLOCKED}116.181:447
  • {BLOCKED}.{BLOCKED}43.49:447
  • {BLOCKED}.{BLOCKED}144.7:447
  • {BLOCKED}.{BLOCKED}92.45:447

It does the following:

  • It is installed as a scheduled task by other malware.
  • It requires other components to run properly.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.718.04

FIRST VSAPI PATTERN DATE:

02 Mar 2020

VSAPI OPR PATTERN File:

15.719.00

VSAPI OPR PATTERN Date:

03 Mar 2020

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

     
    • Troj.Win32.TRX.XXPE50FFF034

Step 2

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.

Step 3

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 4

Identify and terminate files detected as TrojanSpy.Win32.TRICKBOT.DLL

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 5

Deleting Scheduled Tasks

The following {Task Name} - {Task to be run} listed should be used in the steps identified below:

  • Task Name: Windows Direct tools
  • Task to be run: %System%\rundll32.exe %Application Data%\DirectTools\{dll name}.com InitLibraryInitLibrary

For Windows 2000, Windows XP, and Windows Server 2003:

  1. Open the Windows Scheduled Tasks. Click Start>Programs>Accessories>
    System Tools>Scheduled Tasks.
  2. Locate each {Task Name} values listed above in the Name column.
  3. Right-click on the said file(s) with the aforementioned value.
  4. Click on Properties. In the Run field, check for the listed {Task to be run}.
  5. If the strings match the list above, delete the task.

For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:

  1. Open the Windows Task Scheduler. To do this:
    • On Windows Vista, Windows 7, and Windows Server 2008, click Start, type taskschd.msc in the Search input field, then press Enter.
    • On Windows 8, Windows 8.1, and Windows Server 2012, right-click on the lower left corner of the screen, click Run, type taskschd.msc, then press Enter.
  2. In the left panel, click Task Scheduler Library.
  3. In the upper-middle panel, locate each {Task Name} values listed above in the Name column.
  4. In the lower-middle panel, click the Actions tab. In the Details column, check for the {Task to be run} string.
  5. If the said string is found, delete the task.

Step 6

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win32.TRICKBOT.DLL. 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 the following Trend Micro Support pages for more information:


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