Ransom.PS1.NEDIB.THCBIBD
PwrSh:Agent-AV [Ransom] (AVAST)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
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 encrypts files found in specific folders. It drops files as ransom note.
TECHNICAL DETAILS
10,033 bytes
PS1
No
21 Mar 2024
Displays graphics/image, Encrypts files, Drops files, Connects to URLs/IPs, Collects system information, Steals information
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.
Installation
This Ransomware adds the following processes:
- "%System%\NOTEPAD.EXE" %Desktop%\README.txt
(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Ransomware changes the desktop wallpaper by modifying the following registry entries:
HKEY_CURRENT_USER\control panel\desktop
wallpaper = %Temp%\photo.jpg
Information Theft
This Ransomware gathers the following data:
- satellite:IP
- IP address
- bust_in_silhouette: User Information
- Language
- Current date and time
- User Name
- Computer Name
- shield: Antivirus
- Installed antivirus software
- computer: Hardware
- Display resolution
- OS version
- OS build
- Manufacturer
- Model
- CPU name
- GPU name
- RAM
- UUID
- MAC address
- Uptime
- floppy_disk: Disk
- All disk information
Other Details
This Ransomware encrypts files with the following extensions:
- .7z
- .docx
- .gif
- .gz
- .ini
- .jpg
- .psd
- .png
- .rtf
- .txt
- .zip
- .accd
- .avi
- .csv
- .doc
- .jpeg
- .midi
- .mov
- .mp3
- .mp4
- .mpeg
- .mpeg2
- .mpeg3
- .mpg
- .ogg
- .ppt
- .xls
It does the following:
- It deletes all shadow copies on the system.
- It attempts to download from this URL to use as wallpaper
- https://{BLOCKED}fshore.cat/HrD5nI4Z.cat → %Temp%\photo.jpg
Ransomware Routine
This Ransomware encrypts files found in the following folders:
- %Downloads%
It appends the following extension to the file name of the encrypted files:
- .biden
It drops the following file(s) as ransom note:
- %Desktop%\README.txt
SOLUTION
9.800
19.246.03
29 Mar 2024
19.247.00
30 Mar 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
Reset your Desktop properties
Step 3
Restore encrypted files from backup.
Step 4
Scan your computer with your Trend Micro product to delete files detected as Ransom.PS1.NEDIB.THCBIBD. 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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