Type
File Name
Location
GandCrab-5 was first discovered in September 2018 in enterprise cloud environments.
Name
GandCrab-5
First Seen
September 2018
GandCrab-5 is known to target specific file types. Below are all known file types that GandCrab-5 is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. GandCrab-5 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 GandCrab-5 ransomware is known to change.
Suffixes
/.[A-Z]{5}$/, /.[A-Z]{5,10}$/
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 GandCrab-5.
Type File Name Location file /^[A-Z]{5}-DECRYPT.html$/ EveryFolder file /^[A-Z]{5,10}-DECRYPT.txt$/ EveryFolder file /^[A-Z]{5,10}-MANUAL.txt$/ EveryFolder
These are the names of the executables that contain the undetonated ransomware payload for GandCrab-5.
Executables
GandCrab.exe, gancrab-sample.bin, GandCrab.bin, grandcrab.bin, penis.exe, GandCrab Ransomware.exe, GandCrabRansomware.exe, gft.exe, myfile.exe, gandcrab.bin, gandcrab.exe, GandCrab 5.exe, o.bin, o.exe, 203961046629696.exe, Involve.exe, график замены водосчетчиков.scr, Резюме.scr, счет за Аренду за сентябрь.scr, Товарные накладные.scr, Protection, Protection.exe, GandCrab v5.1.exe, data.bin_refresh1, UCBCV4DG.exe, Emergencyexitmap.pdf[1].bin, Emergencyexitmap.exe, ELP977AS.exe, 53I58WVY.exe, GandCrab5.2.bin, menu demarrage – raccourci, Menu Demarrage – Raccourci, 11111.exe, GandCrab v5.2.exe, youwin.exe, SopCast.exe, Crack_Extreme_Sample_Converter.exe, CRACK_SWEET_MIDI_PLAYER.EXE, GstarCAD_64bit.exe, Crack_ABBYY_FineReader.exe, Crack_Flip_PDF_Professional.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 GandCrab-5.
External Pages
