Type
File Name
Location
Avaddon was first discovered in June 2020 in enterprise cloud environments. Avaddon is found in environments with a number of different names, including Avaddon Doxware, etc. For a full list of all names, please see below.
Name
Avaddon
First Seen
June 2020
Avaddon is known to target specific file types. Below are all known file types that Avaddon is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Avaddon updates the last modified date of the file it targets.
Some ransomware will change or append a suffix to the end of the file after they are encrypted, including changing the extension of a file. Here are some of the possible suffixes that Avaddon ransomware is known to change.
Suffixes
.avdn, /.[A-Ea-e0-9]{10}$/
Not all ransomware leaves a note. However, some ransomware leaves the infected party instructions on what the user should do to get rid of the ransomware, or satisfy the ransom. This often involves transferring money, often bitcoin or another cryptocurrency to a designated wallet.
Below are the type(s) of notes, content, and typical locations where Elastio has found ransom notes from Avaddon.
Type File Name Location file readme.html EveryFolder file 1_readme.html RootDiscs, Desktop file /^[A-Za-z0-9]{2,8}_readme_?.txt$/ EveryFolder file /^[A-Za-z0-9]{2,8}-readme_?.html$/ EveryFolder screenshot Desktop
These are the names of the executables that contain the undetonated ransomware payload for Avaddon.
Executables
sava.bin, software.exe, Avaddon_09_06_2020_1054KB.exe, file.exe, program.exe, executable.exe, old.exe, sava.exe, jpr.exe, old.bin, img05960602020-jpg.scr, temp27472466.exe, 5737263.exe, vget.exe, vnget.exe, 5203508738.exe, 646246465.exe, 647274456.exe, 6247427.exe, 237502353.exe, taskhost.exe, wtava_1.exe, tava_1.exe, tava.exe, wtava.exe, tspm.exe, 4939394.exe, 7865336.exe, 75365357.exe, temp377346.exe, 05750050.exe, 5893938.exe, 58839304.exe, bit4bc0.tmp, lkx999.exe, senddebuglog, SendDebugLog.exe, 1.exe, QkpxnTb.exe, BUIRansomSample.exe, rdp.exe, rdp.bin.exe, Avaddon.exe, exe_PPHK.exe
Ransomware often links to external pages such as payment pages, telegram contacts, etc. Below are some of the URLs Elastio has found to be associated with Avaddon.
External Pages
