FrozenCell

FrozenCell is the mobile component of a family of surveillanceware, with a corresponding desktop component known as KasperAgent and Micropsia.[1]

ID: S0577
Type: MALWARE
Platforms: Android
Version: 1.0
Created: 17 February 2021
Last Modified: 19 April 2021

Techniques Used

Domain ID Name Use
Mobile T1532 Archive Collected Data

FrozenCell has compressed and encrypted data before exfiltration using password protected .7z archives.[1]

Mobile T1429 Audio Capture

FrozenCell has recorded calls.[1]

Mobile T1533 Data from Local System

FrozenCell has retrieved device images for exfiltration.[1]

Mobile T1407 Download New Code at Runtime

FrozenCell has downloaded and installed additional applications.[1]

Mobile T1420 File and Directory Discovery

FrozenCell has searched for pdf, doc, docx, ppt, pptx, xls, and xlsx file types for exfiltration.[1]

Mobile T1430 Location Tracking

FrozenCell has used an online cell tower geolocation service to track targets.[1]

Mobile T1655 .001 Masquerading: Match Legitimate Name or Location

FrozenCell has masqueraded as fake updates to chat applications such as Facebook, WhatsApp, Messenger, LINE, and LoveChat, as well as apps targeting Middle Eastern demographics.[1]

Mobile T1636 .004 Protected User Data: SMS Messages

FrozenCell has read SMS messages for exfiltration.[1]

Mobile T1409 Stored Application Data

FrozenCell has retrieved account information for other applications.[1]

Mobile T1426 System Information Discovery

FrozenCell has gathered the device manufacturer, model, and serial number.[1]

Mobile T1422 System Network Configuration Discovery

FrozenCell has collected phone metadata such as cell location, mobile country code (MCC), and mobile network code (MNC).[1]

References