wannacry

General

Target

https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/WannaCry.exe
Sample

240419-rmrhrsfd4z

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Targets

- Target
  
  https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/WannaCry.exe
Score

10^/10

wannacry adware discovery evasion persistence ransomware spyware stealer worm
- Adds autorun key to be loaded by Explorer.exe on startup
  persistence
- Modifies WinLogon for persistence
  persistence
- Modifies firewall policy service
  evasion
- Modifies security service
  evasion
- Wannacry
  WannaCry is a ransomware cryptoworm.
  ransomware worm wannacry
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Downloads MZ/PE file
- Manipulates Digital Signatures
  Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
- Modifies Installed Components in the registry
  persistence
- Registers new Print Monitor
  persistence
- Sets file execution options in registry
  persistence
- Drops startup file
- Executes dropped EXE
- Modifies system executable filetype association
  persistence
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Installs/modifies Browser Helper Object
  BHOs are DLL modules which act as plugins for Internet Explorer.
  stealer adware
- Legitimate hosting services abused for malware hosting/C2
- Maps connected drives based on registry
  Disk information is often read in order to detect sandboxing environments.
- Modifies WinLogon
  persistence
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
behavioral1