Analysis by: Raighen Sanchez
ALIASES:

Trojan:Win64/Malgent!MSR (MICROSOFT)

 PLATFORM:

Windows

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

  • Threat Type: Ransomware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

This Ransomware 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. However, as of this writing, the said sites are inaccessible.

It encrypts files with specific file extensions.

  TECHNICAL DETAILS

File Size: 5,208,296 bytes
File Type: EXE
Initial Samples Received Date: 25 Feb 2025
Payload: Connects to URLs/IPs, Collects system information, Encrypts files, Terminates processes

Arrival Details

This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Process Termination

This Ransomware terminates the following processes if found running in the affected system's memory:

  • taskmgr.exe
  • processhacker.exe
  • regedit.exe
  • code.exe
  • excel.exe
  • powerpnt.exe
  • winword.exe
  • msaccess.exe
  • mspub.exe
  • msedge.exe
  • virtualboxvm.exe
  • virtualbox.exe
  • chrome.exe
  • cs2.exe
  • steam.exe
  • postgres.exe
  • mysqlworkbench.exe
  • outlook.exe
  • mysqld.exe
  • windowsterminal.exe
  • powershell.exe
  • cmd.exe
  • sublime_text.exe
  • microsoft.photos.exe
  • photosapp.exe

Download Routine

This Ransomware connects to the following URL(s) to download its configuration file:

  • https://{BLOCKED}hub.com/repos/billdev1/abbt/contents/content/config.json

Information Theft

This Ransomware gathers the following data:

  • IP Address
  • OS Version
  • List of Installed Anti-Virus
  • Username
  • Hostname
  • MAC Address
  • Geolocation Data

Other Details

This Ransomware connects to the following website to send and receive information:

  • postgres://postgres.{BLOCKED}yzuktawicaurhu:@aws-0-us-west-1.pooler.supabase.com:5432/postgres

However, as of this writing, the said sites are inaccessible.

Ransomware Routine

This Ransomware encrypts files with the following extensions:

  • ~$
  • .src
  • .ico
  • .cur
  • .theme
  • .themepack
  • .bat
  • .com
  • .cmd
  • .cpl
  • .prf
  • .icls
  • .idx
  • .mod
  • .pyd
  • .vhdx
  • ._pth
  • .hta
  • .mp3
  • .CHK
  • .pickle
  • .pif
  • .url
  • .ogg
  • .tmp
  • .dat
  • .exe
  • .lnk
  • .win
  • .vscdb
  • .bin
  • .cab
  • .inf
  • .lib
  • .tcl
  • .cat
  • .so
  • .msi
  • .vpk
  • .vc
  • .cur
  • .ini
  • .bik
  • .sfx
  • .xnb
  • .ttf
  • .otf
  • .woff
  • .woff2
  • .vfont
  • .resource
  • .N2PK
  • .log
  • .pkg
  • .desktop
  • .dll
  • .pkr
  • .arc
  • .sig
  • .bk2
  • .arz
  • .swf
  • .qt
  • .wma
  • .mp2
  • .vdf
  • .pdb
  • .nfo
  • .whl
  • .mui
  • .srm
  • .smc
  • .dic
  • .lock
  • .pyc
  • .TAG
  • .locale
  • .store
  • .sdi
  • .library-ms
  • .acf
  • .po
  • .mo

It avoids encrypting files with the following strings in their file name:

  • ntuser.dat
  • ntuser.ini
  • iconcache.db
  • Thumbs.db
  • .DS_Store

It avoids encrypting files found in the following folders:

  • Searches
  • AppData
  • $RECYCLE.BIN
  • System Volume Information
  • windows.old
  • steamapps
  • perflogs
  • ansel
  • tmp
  • node_modules
  • cache
  • vendor
  • target
  • Mozilla
  • venv
  • env
  • Chrome
  • google-chrome
  • pypoetry
  • vimfiles
  • viminfo
  • site-packages
  • scoop
  • go

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 19.924.04
FIRST VSAPI PATTERN DATE: 25 Feb 2025
VSAPI OPR PATTERN File: 19.925.00
VSAPI OPR PATTERN Date: 26 Feb 2025

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.XXPE50FFF093

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 Ransom.Win64.ALBABAT.THBBEBE. 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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