arrow_back
search
close

TrojanSpy.Win64.CNYSSTEAL.A

April 24, 2024
 Analysis by: Melvin Jhun Palbusa
 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

Infection Channel:

Downloaded from the Internet, Dropped by other malware

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:

156,544 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

07 Apr 2024

Payload:

Collects system information, Connects to URLs/IPs

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 terminates itself if it finds the following processes in the affected system's memory:

  • ollydbg.exe
  • ida.exe
  • ida64.exe
  • idag.exe
  • idag64.exe
  • idaw.exe
  • idaw64.exe
  • idaq.exe
  • idaq64.exe
  • idau.exe
  • idau64.exe
  • scylla.exe
  • scylla_x64.exe
  • scylla_x86.exe
  • protection_id.exe
  • x64dbg.exe
  • x32dbg.exe
  • windbg.exe
  • reshaker.exe
  • ImportREC.exe
  • IMMUNUTYDEBUGGER.EXE
  • devenv.exe
  • Procmon.exe
  • Procmon64.exe
  • Import reconstructor
  • Process Monitor - Sysinternals
  • Zeta Debugger
  • Rock Debugger
  • ObsidianGUI
  • WinDbgFrameClass
  • idawindows

Information Theft

This Trojan Spy gathers the following data:

  • System UID

Stolen Information

This Trojan Spy sends the gathered information via HTTP POST to the following URL:

  • {BLOCKED}heduler.com /r3diRecT/redirector/proxy.php
  • {BLOCKED}.{BLOCKED}.{BLOCKED}.120

Other Details

This Trojan Spy does the following:

  • Enumerates files/folders in %System Root%\User's:
    • Downloads
    • Desktop
    • Documents
  • It gathers files with the following extension and copies them to %Application Data%\OneDrive:
    • .doc
    • .docx
    • .xls
    • .clsx
    • .ppt
    • .pptx
    • .pdf
    • .zip
  • It replace the following extensions with corresponding values:
    • .doc - X367
    • .docx - X946
    • .xls - X142
    • .clsx - X375
    • .ppt - X593
    • .pptx - X842
    • .pdf - X567
    • .zip - X052

(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

19.298.02

FIRST VSAPI PATTERN DATE:

24 Apr 2024

VSAPI OPR PATTERN File:

19.299.00

VSAPI OPR PATTERN Date:

25 Apr 2024

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.XXPE50FFF079

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

Scan your computer with your Trend Micro product to delete files detected as TrojanSpy.Win64.CNYSSTEAL.A. 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:


Did this description help? Tell us how we did.