Ransomware Research
About WannaCash
WannaCash
WannaCash was first discovered in March 2019 in enterprise cloud environments. WannaCash is found in environments with a number of different names, including WannaCash NextGen, WannaCash 2.0, etc. For a full list of all names, please see below.
| Name | WannaCash |
|---|---|
| AKA |
|
| First Seen | March 2019 |
Targeting
Behavior of WannaCash
WannaCash is known to target specific file types. Below are all known file types that WannaCash is known to infect.
In some cases, ransomware will update the modified date, when it encrypts files. WannaCash updates the last modified date of the file it targets.
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Characteristics of WannaCash
Here are some of the unique characteristics that are helpful to know about WannaCash.
Suffixes
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 WannaCash ransomware is known to change.
| Suffixes | .wannacash, .punisher, .happy new year |
|---|
Prefixes
Some ransomware will change or prepend a prefix to the beginning of the file after they are encrypted. Here are some of the possible prefixes found at the front of a filename that WannaCash ransomware is known to have.
| Prefixes | encrypted(, Файл зашифрован |
|---|
Ransomware Notes
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 WannaCash.
| Type | file |
|---|---|
| File Name | как расшифровать файлы.txt |
| Location | UserFolders, Temp |
| Type | file |
|---|---|
| File Name | Contribution.txt |
| Location |
Executables
These are the names of the executables that contain the undetonated ransomware payload for WannaCash.
| Executables | Ключи_активации_на_365.exe, Ключи активации на 365.exe, Ключи активации на 365 дней.exe, Ключи активации на 365 дней-2010.exe, dobro, hostsss.exe, eset keys [до 06.06.2020].exe, egui.exe, EGUIS.EXE, Ключи для ESET[all versions] на 365 дней.exe, ESETNOD.exe, egui.exe, eguis_upx.exe, Ключи активации на год_.exe |
|---|
External Pages
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 WannaCash.
| External Pages |
|
|---|
How Elastio can help
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