Ransom.Linux.GONNACRY.A

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 requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

It encrypts files with specific file extensions.

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.

Other System Modifications

This Ransomware sets the system's desktop wallpaper to the following image:

Other Details

This Ransomware does the following:

• It is able to run itself in the startup using the following methods:
  • Creating a daemon of itself at ~/.config/autostart
  • Creating an autostart service of its daemon using systemctl
  • Creating an autostart file for its daemon at /etc/profile, ~/.bash_profile, ~/.bash_login, ~/.profile, ~/.bashrc
  • Creating a crontab for its daemon
• It runs its decryptor as a subprocess using the following commands:
  • gnome-terminal --command .{Decryptor path}
  • xfce4-terminal --command=.{Decryptor path}

It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.

Ransomware Routine

This Ransomware encrypts files with the following extensions:

• .doc
• .docx
• .xls
• .xlsx
• .ppt
• .pptx
• .pst
• .ost
• .msg
• .eml
• .vsd
• .vsdx
• .txt
• .csv
• .rtf
• .wks
• .wk1
• .pdf
• .dwg
• .onetoc2
• .snt
• .jpeg
• .jpg
• .docb
• .docm
• .dot
• .dotm
• .dotx
• .xlsm
• .xlsb
• .xlw
• .xlt
• .xlm
• .xlc
• .xltx
• .xltm
• .pptm
• .pot
• .pps
• .ppsm
• .ppsx
• .ppam
• .potx
• .potm
• .edb
• .hwp
• .602
• .sxi
• .sti
• .sldx
• .sldm
• .vdi
• .vmdk
• .vmx
• .gpg
• .aes
• .arc
• .paq
• .bz2
• .tbk
• .bak
• .tar
• .tgz
• .gz
• .7z
• .rar
• .zip
• .backup
• .iso
• .vcd
• .bmp
• .png
• .gif
• .raw
• .cgm
• .tif
• .tiff
• .nef
• .psd
• .ai
• .svg
• .djvu
• .m4u
• .m3u
• .mid
• .wma
• .flv
• .3g2
• .mkv
• .3gp
• .mp4
• .mov
• .avi
• .asf
• .mpeg
• .vob
• .mpg
• .wmv
• .fla
• .swf
• .wav
• .mp3
• .sh
• .class
• .jar
• .java
• .rb
• .asp
• .php
• .jsp
• .brd
• .sch
• .dch
• .dip
• .pl
• .vb
• .vbs
• .ps1
• .bat
• .cmd
• .js
• .asm
• .h
• .pas
• .cpp
• .c
• .cs
• .suo
• .sln
• .ldf
• .mdf
• .ibd
• .myi
• .myd
• .frm
• .odb
• .dbf
• .db
• .mdb
• .accdb
• .sql
• .sqlitedb
• .sqlite3
• .asc
• .lay6
• .lay
• .mml
• .sxm
• .otg
• .odg
• .uop
• .std
• .sxd
• .otp
• .odp
• .wb2
• .slk
• .dif
• .stc
• .sxc
• .ots
• .ods
• .3dm
• .max
• .3ds
• .uot
• .stw
• .sxw
• .ott
• .odt
• .pem
• .p12
• .csr
• .crt
• .key
• .pfx
• .der

It appends the following extension to the file name of the encrypted files:

• .GNNCRY