RANSOM_WANNAPEACE.THDBOAH
HEUR:Trojan.Win32.Generic (Kaspersky), Generic.Ransom.Wannapeace.ADB62E51 (BitDefender), Ransom-RsSIRIA!48C8A7B12F28 (NAI)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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 with specific file extensions. It encrypts files found in specific folders.
TECHNICAL DETAILS
1,600,000 bytes
EXE
No
20 Apr 2018
Encrypts files, , Connects to URLs/IPs
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 drops the following files:
- {Current Directory of Malware}\RansSIRIA.exe
- {Current Directory of Malware}\RsSIRIA.exe.Config
Other System Modifications
This Ransomware modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
Name = {Malware File Name}.exe
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\DOMStorage\horacerta.com.br
(Default) = 24
Other Details
This Ransomware connects to the following URL(s) to get the affected system's IP address:
- www.{BLOCKED}ool.com
It connects to the following website to send and receive information:
- http://{BLOCKED}707.{BLOCKED}/
It connects to the following time servers to determine the current date:
- http://www.{BLOCKED}rta.com.br/
It does the following:
- It displays the following fake Word loading screen upon execution:
- It does not proceed to its encryption routine if the current system is not located in Brazil
- It connects to the following website upon successful encryption:
- https://{BLOCKED}/qNxDFP
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .123
- .3dm
- .3ds
- .3g2
- .3gp
- .602
- .7z
- .ARC
- .PAQ
- .accdb
- .ai
- .asc
- .asf
- .asm
- .asp
- .avi
- .backup
- .bak
- .bat
- .bmp
- .brd
- .bz2
- .c
- .cgm
- .class
- .cmd
- .cpp
- .crt
- .cs
- .csr
- .csv
- .db
- .db2
- .db3
- .dbc
- .dbf
- .dch
- .der
- .dif
- .dip
- .djvu
- .doc
- .docb
- .docm
- .docx
- .dot
- .dotm
- .dotx
- .dwg
- .edb
- .eml
- .fla
- .flv
- .frm
- .gdb
- .gif
- .gpg
- .gz
- .h
- .hwp
- .ib
- .ibd
- .itdb
- .jar
- .java
- .jpeg
- .jpg
- .js
- .jsp
- .key
- .lay
- .lay6
- .ldf
- .lnk
- .m3u
- .m4u
- .max
- .mdb
- .mdf
- .mht
- .mid
- .mkv
- .mml
- .mov
- .mp3
- .mp4
- .mpeg
- .mpg
- .msg
- .myd
- .myi
- .ndf
- .nef
- .odb
- .odg
- .odp
- .ods
- .odt
- .onetoc2
- .ost
- .otg
- .otp
- .ots
- .ott
- .p12
- .pas
- .pem
- .pfx
- .php
- .pl
- .png
- .pot
- .potm
- .potx
- .ppam
- .pps
- .ppsm
- .ppsx
- .ppt
- .pptm
- .pptx
- .ps1
- .psd
- .pst
- .py
- .rar
- .raw
- .rb
- .rtf
- .sch
- .scx
- .sdf
- .sh
- .sldm
- .sldx
- .slk
- .sln
- .snt
- .sql
- .sqlite
- .sqlite3
- .sqlitedb
- .stc
- .std
- .sti
- .stw
- .suo
- .svg
- .swf
- .sxc
- .sxd
- .sxi
- .sxm
- .sxw
- .tar
- .tbk
- .tgz
- .tif
- .tiff
- .txt
- .uop
- .uot
- .vb
- .vcd
- .vdi
- .vmdk
- .vmx
- .vob
- .vsd
- .vsdx
- .wav
- .wb2
- .wdb
- .wk1
- .wks
- .wma
- .wmv
- .xlc
- .xld
- .xlm
- .xls
- .xlsb
- .xlsm
- .xlsx
- .xlt
- .xltm
- .xltx
- .xlw
- .zip
It encrypts files found in the following folders:
- %Windows%
- %Program Files%
- %ProgramData%
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %ProgramData% is the Program Data folder, where it usually is C:\Program Files in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
SOLUTION
9.850
14.202.04
19 Apr 2018
14.203.00
20 Apr 2018
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 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
Restore this modified registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
- Name = {Malware File Name}.exe
- Name = {Malware File Name}.exe
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\DOMStorage\horacerta.com.br
- (Default) = 24
- (Default) = 24
Step 4
Identify and terminate files detected as RANSOM_WANNAPEACE.THDBOAH
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 5
Search and delete this file
- {Current Directory of Malware}\RansSIRIA.exe
- {Current Directory of Malware}\RsSIRIA.exe.Config
Step 6
Scan your computer with your Trend Micro product to delete files detected as RANSOM_WANNAPEACE.THDBOAH. 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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