buran

General

Target

b1f01d82c1006f6c93769f9b25b065b49885942768c26b626aa905746d475ccc
Size

300KB
Sample

210831-kbp8pcg6rj
MD5

6be7a1642428f7e47a813e0cc6d481a9
SHA1

f0a20871c899c09222b2857fa8b87ae7699b056a
SHA256

b1f01d82c1006f6c93769f9b25b065b49885942768c26b626aa905746d475ccc
SHA512

f76af12336fb8e1b8a0a19eab77ad6e71a6f7f5c59f3b080b8485d23a38c12338d63f238c935b8ac93593204be30d2edce11469ffa5591bf734c9e801afe1188

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. PAY FAST 500$=0.013 btc or the price will increase tomorrow bitcoin address bc1qqxnp9z0ff8x852dyflp5r9r6rzse8jl5hzmqz8 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? [email protected] TELEGRAM @ payfast290 Your personal ID: 7B3-0F7-D11 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.

Extracted

Family

smokeloader

Version

2020

C2

http://readinglistforaugust1.xyz/

http://readinglistforaugust2.xyz/

http://readinglistforaugust3.xyz/

http://readinglistforaugust4.xyz/

http://readinglistforaugust5.xyz/

http://readinglistforaugust6.xyz/

http://readinglistforaugust7.xyz/

http://readinglistforaugust8.xyz/

http://readinglistforaugust9.xyz/

http://readinglistforaugust10.xyz/

http://readinglistforaugust1.site/

http://readinglistforaugust2.site/

http://readinglistforaugust3.site/

http://readinglistforaugust4.site/

http://readinglistforaugust5.site/

http://readinglistforaugust6.site/

http://readinglistforaugust7.site/

http://readinglistforaugust8.site/

http://readinglistforaugust9.site/

http://readinglistforaugust10.site/

rc4.i32

Targets

- Target
  
  b1f01d82c1006f6c93769f9b25b065b49885942768c26b626aa905746d475ccc
- Size
  
  300KB
- MD5
  
  6be7a1642428f7e47a813e0cc6d481a9
- SHA1
  
  f0a20871c899c09222b2857fa8b87ae7699b056a
- SHA256
  
  b1f01d82c1006f6c93769f9b25b065b49885942768c26b626aa905746d475ccc
- SHA512
  
  f76af12336fb8e1b8a0a19eab77ad6e71a6f7f5c59f3b080b8485d23a38c12338d63f238c935b8ac93593204be30d2edce11469ffa5591bf734c9e801afe1188
Score

10^/10

buran smokeloader backdoor discovery evasion persistence ransomware spyware stealer themida trojan
- Buran
  Ransomware-as-a-service based on the VegaLocker family first identified in 2019.
  ransomware buran
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
  evasion
- Downloads MZ/PE file
- Executes dropped EXE
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Deletes itself
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Themida packer
  Detects Themida, an advanced Windows software protection system.
  themida
- Accesses cryptocurrency files/wallets, possible credential harvesting
  spyware
- 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
- Checks whether UAC is enabled
  evasion trojan
- 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
behavioral1