cryptolocker

General

Target

http://roblox
Sample

250206-qdp3xavrgs

Score

10^/10

Malware Config

Targets

- Target
  
  http://roblox
Score

10^/10

cryptolocker dharma credential_access defense_evasion discovery execution impact persistence ransomware spyware stealer
- CryptoLocker
  Ransomware family with multiple variants.
  ransomware cryptolocker
- Cryptolocker family
  cryptolocker
- Dharma
  Dharma is a ransomware that uses security software installation to hide malicious activities.
  ransomware dharma
- Dharma family
  dharma
- Modifies WinLogon for persistence
  persistence
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Renames multiple (556) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Disables RegEdit via registry modification
  defense_evasion
- Disables Task Manager via registry modification
  defense_evasion
- Downloads MZ/PE file
- Manipulates Digital Signatures
  Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
- Credentials from Password Stores: Windows Credential Manager
  Suspicious access to Credentials History.
  credential_access stealer
- Drops startup file
- Executes dropped EXE
- Impair Defenses: Safe Mode Boot
  defense_evasion
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Adds Run key to start application
  persistence
- Drops desktop.ini file(s)
- Legitimate hosting services abused for malware hosting/C2
- Modifies WinLogon
  persistence
- Drops file in System32 directory
behavioral1