badrabbit

General

Target

https://www.google.com/search?q=how+to+download+a+windows+10+iso&rlz=1C1GCEA_enUS1102US1102&oq=how+to+download+a+windows+&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBwgAEAAYgAQyBwgBEAAYgAQyBwgCEAAYgAQyBggDEEUYOTIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDc4NjZqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
Sample

240417-rsxa7sdd6x

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

Extracted

Family

revengerat

Botnet

Guest

C2

0.tcp.ngrok.io:19521

Mutex

RV_MUTEX

Targets

- Target
  
  https://www.google.com/search?q=how+to+download+a+windows+10+iso&rlz=1C1GCEA_enUS1102US1102&oq=how+to+download+a+windows+&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBwgAEAAYgAQyBwgBEAAYgAQyBwgCEAAYgAQyBggDEEUYOTIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDc4NjZqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
Score

10^/10

badrabbit mimikatz revengerat wannacry guest bootkit persistence ransomware spyware stealer trojan worm
- BadRabbit
  Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
  ransomware badrabbit
- Mimikatz
  mimikatz is an open source tool to dump credentials on Windows.
  mimikatz
- RevengeRAT
  Remote-access trojan with a wide range of capabilities.
  trojan revengerat
- Wannacry
  WannaCry is a ransomware cryptoworm.
  ransomware worm wannacry
- RevengeRat Executable
  stealer
- mimikatz is an open source tool to dump credentials on Windows
- Blocklisted process makes network request
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Uses the VBS compiler for execution
- Adds Run key to start application
  persistence
- 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
- Sets desktop wallpaper using registry
  ransomware
- Suspicious use of SetThreadContext
behavioral1