wannacry

General

Target

https://www.avast.com/en-gb/avast-one
Sample

240417-rk2wqach4y

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\Ransomwares\@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: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �

Wallets

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

- Target
  
  https://www.avast.com/en-gb/avast-one
Score

10^/10

wannacry bootkit discovery evasion persistence ransomware spyware stealer trojan upx worm
- Modifies WinLogon for persistence
  persistence
- Suspicious use of NtCreateProcessExOtherParentProcess
- 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
- Drops file in Drivers directory
- Sets service image path in registry
  persistence
- Uses Session Manager for persistence
  Creates Session Manager registry key to run executable early in system boot.
  persistence
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Modifies file permissions
  discovery
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Registers COM server for autorun
  persistence
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Windows security modification
  evasion trojan
- Adds Run key to start application
  persistence
- Blocklisted process makes network request
- Checks for any installed AV software in registry
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
behavioral1