buran

General

Target

1121.exe
Size

250KB
Sample

211207-zb5v1sfgf2
MD5

0aa3df1d2561f93d4d083c18a8c87ba2
SHA1

3d38a3b4a0ac1fd5d654dcef12cc5e9f839d2887
SHA256

03c409dda5cccf65e3402743fdbdeeb2247caa83b74ecb9ee4f547bf371fd6bb
SHA512

4181796c8f8b5aa4ec3d2c362e8fb2e473af11d7200abd34b5b022293041e9fa7cf4e6a4e00bf057481e86899115487c55f68d47cc23d8444e166ed063900536

Score

10^/10

Malware Config

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note

!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Reserved email: [email protected] Reserved email: [email protected] Your personal ID: 17B-6BE-2BB Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Emails

[email protected]

Extracted

Path

C:\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT

Family

buran

Ransom Note

!!! ALL YOUR FILES ARE ENCRYPTED !!! All your files, documents, photos, databases and other important files are encrypted. You are not able to decrypt it by yourself! The only method of recovering files is to purchase an unique private key. Only we can give you this key and only we can recover your files. To be sure we have the decryptor and it works you can send an email: [email protected] and decrypt one file for free. But this file should be of not valuable! Do you really want to restore your files? Write to email: [email protected] Reserved email: [email protected] Reserved email: [email protected] Your personal ID: 19E-BC8-F53 Attention! * Do not rename encrypted files. * Do not try to decrypt your data using third party software, it may cause permanent data loss. * Decryption of your files with the help of third parties may cause increased price (they add their fee to our) or you can become a victim of a scam.

Emails

[email protected]

Targets

- Target
  
  1121.exe
- Size
  
  250KB
- MD5
  
  0aa3df1d2561f93d4d083c18a8c87ba2
- SHA1
  
  3d38a3b4a0ac1fd5d654dcef12cc5e9f839d2887
- SHA256
  
  03c409dda5cccf65e3402743fdbdeeb2247caa83b74ecb9ee4f547bf371fd6bb
- SHA512
  
  4181796c8f8b5aa4ec3d2c362e8fb2e473af11d7200abd34b5b022293041e9fa7cf4e6a4e00bf057481e86899115487c55f68d47cc23d8444e166ed063900536
Score

10^/10

buran persistence ransomware
- Buran
  Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
  ransomware buran
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- Loads dropped DLL
- 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
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory
behavioral1 behavioral2