Ransom.MSIL.BALLISTIC.A
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
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 with specific file extensions. It drops files as ransom note.
TECHNICAL DETAILS
59,392 bytes
EXE
No
18 Apr 2020
Displays message/message boxes, 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 drops and executes the following files:
- {Malware path}\del.bat ? deletes all .exe and .bat file in the current directory (including itself and the malware file).
Other System Modifications
This Ransomware adds the following registry entries:
HKLM\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = 1
Other Details
This Ransomware does the following:
- it encrypts files found on all drives however it will only encrypt files from %System Root% in the following directories:
- %User Profile%\Desktop
- %User Profile%\Links
- %User Profile%\Contacts
- %User Profile%\Documents
- %User Profile%\Downloads
- %User Profile%\Pictures
- %User Profile%\Music
- %User Profile%\OneDrive
- %User Profile%\Saved Games
- %User Profile%\Favorites
- %User Profile%\Searches
- %User Profile%\Videos
(Note: %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).)
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .gif
- .groups
- .hdd
- .hpp
- .log
- .m2ts
- .m4p
- .mkv
- .mpeg
- .ndf
- .nvram
- .ogg
- .ost
- .pab
- .pdb
- .pif
- .png
- .qed
- .qcow
- .qcow2
- .rvt
- .st7
- .stm
- .vbox
- .vdi
- .vhd
- .vhdx
- .vmdk
- .vmsd
- .vmx
- .vmxf
- .3fr
- .3pr
- .ab4
- .accde
- .accdr
- .accdt
- .ach
- .acr
- .adb
- .ads
- .agdl
- .ait
- .apj
- .asm
- .awg
- .back
- .backup
- .backupdb
- .bay
- .bdb
- .bgt
- .bik
- .bpw
- .cdr3
- .cdr4
- .cdr5
- .cdr6
- .cdrw
- .ce1
- .ce2
- .cib
- .craw
- .crw
- .csh
- .csl
- .db_journal
- .dc2
- .dcs
- .ddoc
- .ddrw
- .der
- .des
- .dgc
- .djvu
- .dng
- .drf
- .dxg
- .eml
- .erbsql
- .erf
- .exf
- .ffd
- .fh
- .fhd
- .gray
- .grey
- .gry
- .hbk
- .ibd
- .ibz
- .iiq
- .incpas
- .jpe
- .kc2
- .kdbx
- .kdc
- .kpdx
- .lua
- .mdc
- .mef
- .mfw
- .mmw
- .mny
- .mrw
- .myd
- .ndd
- .nef
- .nk2
- .nop
- .nrw
- .ns2
- .ns3
- .ns4
- .nwb
- .nx2
- .nxl
- .nyf
- .odb
- .odf
- .odg
- .odm
- .orf
- .otg
- .oth
- .otp
- .ots
- .ott
- .p12
- .p7b
- .p7c
- .pdd
- .pem
- .plus_muhd
- .plc
- .pot
- .pptx
- .psafe3
- .py
- .qba
- .qbr
- .qbw
- .qbx
- .qby
- .raf
- .rat
- .raw
- .rdb
- .rwl
- .rwz
- .s3db
- .sd0
- .sda
- .sdf
- .sqlite
- .sqlite3
- .sqlitedb
- .sr2
- .srf
- .srw
- .st5
- .st8
- .std
- .sti
- .stw
- .stx
- .sxd
- .sxg
- .sxi
- .sxm
- .tex
- .wallet
- .wb2
- .wpd
- .x11
- .x3f
- .xis
- .ycbcra
- .yuv
- .contact
- .dbx
- .doc
- .docx
- .jnt
- .jpg
- .msg
- .oab
- .ods
- .pps
- .ppsm
- .ppt
- .pptm
- .prf
- .pst
- .rar
- .rtf
- .txt
- .wab
- .xls
- .xlsx
- .xml
- .zip
- .1cd
- .3ds
- .3g2
- .3gp
- .7z
- .7zip
- .accdb
- .aoi
- .asf
- .asp
- .aspx
- .asx
- .avi
- .bak
- .cer
- .cfg
- .class
- .config
- .css
- .csv
- .db
- .dds
- .dwg
- .dxf
- .flf
- .flv
- .html
- .idx
- .js
- .key
- .kwm
- .laccdb
- .ldf
- .lit
- .m3u
- .mbx
- .md
- .exe
- .mdf
- .mid
- .mlb
- .mov
- .mp3
- .mp4
- .mpg
- .obj
- .odt
- .pages
- .EXE
- .php
- .psd
- .pwm
- .rm
- .safe
- .sav
- .save
- .sql
- .srt
- .swf
- .thm
- .vob
- .wav
- .wma
- .wmv
- .xlsb,3dm
- .aac
- .ai
- .arw
- .c
- .cdr
- .cls
- .cpi
- .cpp
- .cs
- .db3
- .docm
- .dot
- .dotm
- .dotx
- .drw
- .dxb
- .eps
- .fla
- .flac
- .fxg
- .java
- .m
- .m4v
- .max
- .mdb
- .pcd
- .pct
- .pl
- .potm
- .potx
- .ppam
- .ppsm
- .ppsx
- .pptm
- .ps
- .r3d
- .rw2
- .sldm
- .sldx
- .svg
- .tga
- .wps
- .xla
- .xlam
- .xlm
- .xlr
- .xlsm
- .xlt
- .xltm
- .xltx
- .xlw
- .act
- .adp
- .al
- .bkp
- .blend
- .cdf
- .cdx
- .cgm
- .cr2
- .crt
- .dac
- .dbf
- .dcr
- .ddd
- .design
- .dtd
- .fdb
- .fff
- .fpx
- .h
- .iif
- .indd
- .jpeg
- .mos
- .nd
- .nsd
- .nsf
- .nsg
- .nsh
- .odc
- .odp
- .oil
- .pas
- .pat
- .pef
- .pfx
- .ptx
- .qbb
- .qbm
- .sas7bdat
- .say
- .st4
- .st6
- .stc
- .sxc
- .sxw
- .tlg
- .wad
- .xlk
- .aiff
- .bin
- .bmp
- .cmt
- .dat
- .dit
- .edb
- .flvv
- .mid
- .wma
- .flv
- .mkv
- .mov
- .avi
- .asf
- .mpeg
- .vob
- .mpg
- .wmv
- .fla
- .swf
- .wav
- .qcow2
- .vdi
- .vmdk
- .vmx
- .gpg
- .aes
- .ARC
- .PAQ
- .tar
- .bz2
- .tbk
- .bak
- .tar
- .tgz
- .rar
- .zip
- .djv
- .djvu
- .svg
- .bmp
- .png
- .gif
- .raw
- .cgm
- .jpeg
- .jpg
- .tif
- .tiff
- .NEF
- .psd
- .cmd
- .bat
- .class
- .jar
- .java
- .asp
- .brd
- .sch
- .dch
- .dip
- .vbs
- .asm
- .pas
- .cpp
- .php
- .ldf
- .mdf
- .ibd
- .MYI
- .MYD
- .frm
- .odb
- .dbf
- .mdb
- .sql
- .SQLITEDB
- .SQLITE3
- .asc
- .lay6
- .lay
- .ms11
- .sldm
- .sldx
- .ppsm
- .ppsx
- .ppam
- .docb
- .mml
- .sxm
- .otg
- .odg
- .uop
- .potx
- .potm
- .pptx
- .pptm
- .std
- .sxd
- .pot
- .pps
- .sti
- .sxi
- .otp
- .odp
- .wks
- .xltx
- .xltm
- .xlsx
- .xlsm
- .xlsb
- .slk
- .xlw
- .xlt
- .xlm
- .xlc
- .dif
- .stc
- .sxc
- .ots
- .ods
- .hwp
- .dotm
- .dotx
- .docm
- .docx
- .DOT
- .max
- .xml
- .txt
- .CSV
- .uot
- .RTF
- .XLS
- .PPT
- .stw
- .sxw
- .ott
- .odt
- .DOC
- .pem
- .csr
- .crt
- .keywallet
- .dat
It appends the following extension to the file name of the encrypted files:
- .SARS-CoV-2
It drops the following file(s) as ransom note:
- {Encrypted Directory}\RECOVER MY ENCRYPTED FILES.TXT
It leaves text files that serve as ransom notes containing the following text:
SOLUTION
9.850
15.812.05
18 Apr 2020
15.813.00
19 Apr 2020
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.XXPE50FFF034
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
Restart in Safe Mode
Step 5
Delete this 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\Windows\CurrentVersion\Policies\System
- EnableLUA = 1
- EnableLUA = 1
Step 6
Search and delete this file
- {Encrypted Directory}\RECOVER MY ENCRYPTED FILES.TXT
Step 7
Restore encrypted files from backup.
Step 8
Scan your computer with your Trend Micro product to delete files detected as Ransom.MSIL.BALLISTIC.A. 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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