wannacry

General

Target

yfga_game.exe
Size

11.4MB
Sample

240715-k7prcasanb
MD5

27898b47c1e25ba48514280dfca6a482
SHA1

904e0b30228e0d8cb1a752d709d5d0b89750dc12
SHA256

1e4974e00bbd6069f82e8d0bf067bcadabdbc400f99e16f41689cde1ca5a93a4
SHA512

0045a3250d893df491820323486e750af6b25278b0c74fc132e02bbe7c1a8643b7fdc09d3a418edb8c720fdc7411f6c8aba378b08439beb0590bdefaf80bced5
SSDEEP

196608:x27Ud581jWusNrPGC0ePjqHbUjHicQskqPe1Cxcxk3ZAEUadzR8yc4ghr3j:I7Ud58tWhTr0eqgDiDjqG1Fxk3mEUadC

Score

10^/10

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\yfga_game_3ba8381d-3340-4ab5-a11f-c1c3cbc814c2\@[email protected]

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn Next, please find an application file named "@[email protected]". 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

- Target
  
  yfga_game.exe
- Size
  
  11.4MB
- MD5
  
  27898b47c1e25ba48514280dfca6a482
- SHA1
  
  904e0b30228e0d8cb1a752d709d5d0b89750dc12
- SHA256
  
  1e4974e00bbd6069f82e8d0bf067bcadabdbc400f99e16f41689cde1ca5a93a4
- SHA512
  
  0045a3250d893df491820323486e750af6b25278b0c74fc132e02bbe7c1a8643b7fdc09d3a418edb8c720fdc7411f6c8aba378b08439beb0590bdefaf80bced5
- SSDEEP
  
  196608:x27Ud581jWusNrPGC0ePjqHbUjHicQskqPe1Cxcxk3ZAEUadzR8yc4ghr3j:I7Ud58tWhTr0eqgDiDjqG1Fxk3mEUadC
Score

10^/10

wannacry aspackv2 defense_evasion discovery evasion exploit persistence ransomware spyware stealer upx worm
- Modifies visiblity of hidden/system files in Explorer
  evasion
- Wannacry
  WannaCry is a ransomware cryptoworm.
  ransomware worm wannacry
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Disables Task Manager via registry modification
  evasion
- Drops file in Drivers directory
- Manipulates Digital Signatures
  Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.
- Possible privilege escalation attempt
  exploit
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- 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
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- 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
- Drops desktop.ini file(s)
- File and Directory Permissions Modification: Windows File and Directory Permissions Modification
  defense_evasion
- Drops file in System32 directory
- Sets desktop wallpaper using registry
  ransomware
behavioral1 behavioral2