badrabbit

General

Target

https://github.com/
Sample

220822-de16cacfe3

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/
Score

10^/10

badrabbit mimikatz wannacry evasion persistence ransomware spyware stealer worm
- BadRabbit
  Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
  ransomware badrabbit
- Deletes NTFS Change Journal
  The USN change journal is a persistent log of all changes made to local files used by Windows Server systems.
  ransomware
- Mimikatz
  mimikatz is an open source tool to dump credentials on Windows.
  mimikatz
- Wannacry
  WannaCry is a ransomware cryptoworm.
  ransomware worm wannacry
- Clears Windows event logs
  evasion ransomware
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- mimikatz is an open source tool to dump credentials on Windows
- Blocklisted process makes network request
- Disables Task Manager via registry modification
  evasion
- Downloads MZ/PE file
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Drops startup file
- Loads dropped DLL
- 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
- 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
- Sets desktop wallpaper using registry
  ransomware
behavioral1