cryptolocker | hxxp://example[.]com | Triage

Sharing

General

Target

http://example.com
Sample

240324-vj3y6sge9y

Score

10^/10

cryptolocker evasion persistence ransomware spyware stealer trojan

Malware Config

Targets

- Target
  
  http://example.com
Score

10^/10

cryptolocker evasion persistence ransomware spyware stealer trojan
- CryptoLocker
  Ransomware family with multiple variants.
  ransomware cryptolocker
- Modifies visibility of file extensions in Explorer
  evasion
- UAC bypass
  evasion trojan
- Renames multiple (83) 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
- 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
- Legitimate hosting services abused for malware hosting/C2
behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Abuse Elevation Control Mechanism

Bypass User Account Control

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

Bypass User Account Control

Hide Artifacts

Hidden Files and Directories

Impair Defenses

Disable or Modify Tools

Modify Registry

Credential Access

Unsecured Credentials

Credentials In Files

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Web Service

Exfiltration

Impact

Tasks

static1

urlscan1

behavioral1

cryptolockerevasionpersistenceransomwarespywarestealertrojan