cryptolocker

General

Target

https://www.virustotal.com/gui/home/url
Sample

250323-bp9t5avyfw

Score

10^/10

Malware Config

Extracted

Path

C:\Users\README_HOW_TO_UNLOCK.TXT

Ransom Note

YOUR FILE HAS BEEN LOCKED In order to unlock your files, follow the instructions bellow: 1. Download and install Tor Browser 2. After a successful installation, run Tor Browser and wait for its initialization. 3. Type in the address bar: http://zvnvp2rhe3ljwf2m.onion 4. Follow the instructions on the site.

URLs

http://zvnvp2rhe3ljwf2m.onion

Targets

- Target
  
  https://www.virustotal.com/gui/home/url
Score

10^/10

cryptolocker defense_evasion discovery execution impact persistence ransomware upx
- CryptoLocker
  Ransomware family with multiple variants.
  ransomware cryptolocker
- Cryptolocker family
  cryptolocker
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Renames multiple (63) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Downloads MZ/PE file
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Adds Run key to start application
  persistence
- Legitimate hosting services abused for malware hosting/C2
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
behavioral1