Ransom.Win64.RAZR.THIODBD
Trojan-Ransom.FileCrypter (IKARUS)
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 connects to certain websites to send and receive information.
It encrypts files found in specific folders. It drops files as ransom note.
TECHNICAL DETAILS
19,968 bytes
EXE
No
04 Sep 2024
Connects to URLs/IPs, Encrypts files
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:
- {Malware File Path}\{Malware File Name} → when not ran with administrator privileges
Other Details
This Ransomware connects to the following website to send and receive information:
- https://{BLOCKED}honanywhere.com/c2/receiver
It encrypts files with the following extensions:
- .7z
- .aac
- .accdb
- .adt
- .aiff
- .avi
- .bak
- .bat
- .bmp
- .c
- .cfg
- .cmd
- .conf
- .contact
- .cpp
- .css
- .dat
- .db
- .doc
- .docx
- .eml
- .exe
- .flac
- .gif
- .gz
- .htm
- .html
- .ics
- .ini
- .iso
- .java
- .jpeg
- .jpg
- .js
- .json
- .log
- .m3u
- .m4a
- .mdb
- .mkv
- .mod
- .mov
- .mp3
- .mp4
- .mpa
- .msg
- .mzv
- .odp
- .ods
- .odt
- .ost
- .png
- .pps
- .ppsm
- .ppt
- .pptx
- .ps1
- .psd1
- .psm1
- .pst
- .py
- .ram
- .rar
- .rtf
- .sh
- .sql
- .sqlite
- .svg
- .tar
- .tif
- .tiff
- .txt
- .vdi
- .vhd
- .vmdk
- .wav
- .wmv
- .xht
- .xla
- .xls
- .xlsx
- .xltm
- .xml
- .yaml
- .yml
- .zip
It does the following:
- When not run with administrator privileges:
- It will run another instance of itself with administrator privileges then exit.
- It sends its generated victim ID, encryption key, and initialization vector to its C&C server.
Ransomware Routine
This Ransomware encrypts files found in the following folders:
- C:\
- %Desktop%
- %User Profile%\Documents
- %User Profile%\Downloads
- %User Profile%\Music
- %User Profile%\Pictures
- %User Profile%\Videos
(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).. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It appends the following extension to the file name of the encrypted files:
- .raz
It drops the following file(s) as ransom note:
- {Traversed Directory}\README.txt
SOLUTION
9.800
19.572.02
05 Sep 2024
19.573.00
06 Sep 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:
- Ransom.Win32.TRX.XXPE50FFF084
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
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 4
Search and delete this file
- {Traversed Directory}\README.txt
Step 5
Scan your computer with your Trend Micro product to delete files detected as Ransom.Win64.RAZR.THIODBD. 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:
Step 6
Restore encrypted files from backup.
Did this description help? Tell us how we did.