buran

General

Target

2abd335516a4a9e4fb06c9d8ed05bf9c7a22fc6ae4c05a583ca2aadf34fca524
Size

271KB
Sample

210831-jarrky4kr2
MD5

2ac2d205677f7511bfcf371574a65bad
SHA1

0ca6c3949b40989649411bdde8a9b162b2f11ae3
SHA256

2abd335516a4a9e4fb06c9d8ed05bf9c7a22fc6ae4c05a583ca2aadf34fca524
SHA512

f82b77d0ee1defce0852a59b9050ef9316d9ad180d3cfcb09e045187dff40d5ac7acbdba53c9f930f80edba19395eabc96534d90a18dd4e44673326dbd266434

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: 166-96C-5A1 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
  
  2abd335516a4a9e4fb06c9d8ed05bf9c7a22fc6ae4c05a583ca2aadf34fca524
- Size
  
  271KB
- MD5
  
  2ac2d205677f7511bfcf371574a65bad
- SHA1
  
  0ca6c3949b40989649411bdde8a9b162b2f11ae3
- SHA256
  
  2abd335516a4a9e4fb06c9d8ed05bf9c7a22fc6ae4c05a583ca2aadf34fca524
- SHA512
  
  f82b77d0ee1defce0852a59b9050ef9316d9ad180d3cfcb09e045187dff40d5ac7acbdba53c9f930f80edba19395eabc96534d90a18dd4e44673326dbd266434
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
- Executes dropped EXE
- Modifies extensions of user files
  Ransomware generally changes the extension on encrypted files.
  ransomware
- 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