Type
File Name
Location
Puld was first discovered in June 2025 in enterprise cloud environments.
Name
Puld
First Seen
June 2025
Puld is known to target specific file types. Below are all known file types that Puld is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. Puld 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 Puld ransomware is known to change.
Suffixes
.Puld39
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 Puld.
Type File Name Location file How_to_back_files.html EveryFolder
These are the names of the executables that contain the undetonated ransomware payload for Puld.
Executables
PuId39.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 Puld.
External Pages
