Analysis by: Melvin Jhun Palbusa
 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware

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: 20,043 bytes
File Type: PS1
Memory Resident: No
Initial Samples Received Date: 18 Apr 2024
Payload: Connects to URLs/IPs

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.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • https://{BLOCKED}ket.org/!api/2.0/snippets/nikkerkhan/5qkMXX/c193c8cd66ad1405f4a0ebc7293d71d0f287eb98/files/all.txt
  • https://{BLOCKED}many.blogspot.com/////////atom.xml
  • https://{BLOCKED}nch.blogspot.com////////////////atom.xml
  • https://{BLOCKED}p.blogspot.com///////////////////////atom.xml
  • https://{BLOCKED}00.blogspot.com///////////////////////////////////atom.xml
  • https://{BLOCKED}00.blogspot.com////////////////////////////atom.xml
  • https://{BLOCKED}cket.org/!api/2.0/snippets/lulimpishtum/5qqAE4/bdbf961cc542d6b65210ef2d8d96065b926463eb/files/snippet.txt
  • https://{BLOCKED}ket.org/!api/2.0/snippets/lulimpishtum/aqqApa/ae9f1bacccbf90b8221f755a259d1cddb270c79b/files/file

Other Details

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

  • https://{BLOCKED}ig.me/ip

It does the following:

  • It connects to the following URL to get the machine's country code:
    • https://{BLOCKED}o.io/{Machine IP Address}/country
  • It compares the machine's country code to the following country code and connects to corresponding URL:
    • DE(Germany)
      • https://{BLOCKED}many.blogspot.com/////////atom.xml
    • FR(France)
      • https://{BLOCKED}nch.blogspot.com////////////////atom.xml
    • US(America)
      • https://{BLOCKED}p.blogspot.com///////////////////////atom.xml
    • IT(Italy)
      • https://{BLOCKED}0.blogspot.com///////////////////////////////////atom.xml
    • Others
      • https://{BLOCKED}00.blogspot.com////////////////////////////atom.xml
  • Deletes itself after execution

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 19.314.03
FIRST VSAPI PATTERN DATE: 02 May 2024
VSAPI OPR PATTERN File: 19.315.00
VSAPI OPR PATTERN Date: 03 May 2024

Step 1

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 2

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 3

Scan your computer with your Trend Micro product to delete files detected as Trojan.PS1.XWORM.AA. 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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