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TECHNIQUES
PRE-ATT&CK
Priority Definition Planning
Priority Definition Direction
Target Selection
Technical Information Gathering
People Information Gathering
Organizational Information Gathering
Technical Weakness Identification
People Weakness Identification
Organizational Weakness Identification
Adversary OPSEC
Establish & Maintain Infrastructure
Persona Development
Build Capabilities
Test Capabilities
Stage Capabilities
Enterprise
Initial Access
Phishing
Supply Chain Compromise
Valid Accounts
Execution
Command and Scripting Interpreter
Inter-Process Communication
Scheduled Task/Job
System Services
User Execution
Persistence
Account Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create Account
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Office Application Startup
Pre-OS Boot
Scheduled Task/Job
Server Software Component
Traffic Signaling
Valid Accounts
Privilege Escalation
Abuse Elevation Control Mechanism
Access Token Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Process Injection
Scheduled Task/Job
Valid Accounts
Defense Evasion
Abuse Elevation Control Mechanism
Access Token Manipulation
Execution Guardrails
File and Directory Permissions Modification
Hide Artifacts
Hijack Execution Flow
Impair Defenses
Indicator Removal on Host
Masquerading
Modify Authentication Process
Modify Cloud Compute Infrastructure
Obfuscated Files or Information
Pre-OS Boot
Process Injection
Signed Binary Proxy Execution
Signed Script Proxy Execution
Subvert Trust Controls
Traffic Signaling
Trusted Developer Utilities Proxy Execution
Use Alternate Authentication Material
Valid Accounts
Virtualization/Sandbox Evasion
Credential Access
Brute Force
Credentials from Password Stores
Input Capture
Man-in-the-Middle
Modify Authentication Process
OS Credential Dumping
Steal or Forge Kerberos Tickets
Unsecured Credentials
Discovery
Account Discovery
Permission Groups Discovery
Software Discovery
Virtualization/Sandbox Evasion
Lateral Movement
Remote Service Session Hijacking
Remote Services
Use Alternate Authentication Material
Collection
Archive Collected Data
Data from Information Repositories
Data Staged
Email Collection
Input Capture
Man-in-the-Middle
Command and Control
Application Layer Protocol
Data Encoding
Data Obfuscation
Dynamic Resolution
Encrypted Channel
Proxy
Traffic Signaling
Web Service
Exfiltration
Exfiltration Over Alternative Protocol
Exfiltration Over Other Network Medium
Exfiltration Over Physical Medium
Exfiltration Over Web Service
Impact
Data Manipulation
Defacement
Disk Wipe
Endpoint Denial of Service
Network Denial of Service
Mobile
Initial Access
Execution
Persistence
Privilege Escalation
Defense Evasion
Credential Access
Discovery
Lateral Movement
Collection
Command and Control
Exfiltration
Impact
Network Effects
Remote Service Effects
  1. Home
  2. Techniques
  3. Mobile
  4. Access Calendar Entries

Access Calendar Entries

An adversary could call standard operating system APIs from a malicious application to gather calendar entry data, or with escalated privileges could directly access files containing calendar data.

ID: T1435
Sub-techniques:  No sub-techniques
Tactic Type: Post-Adversary Device Access
Tactic: Collection
Platforms: Android, iOS
MTC ID: APP-13
Version: 1.0
Created: 25 October 2017
Last Modified: 17 October 2018

Procedure Examples

Name Description
Exodus

Exodus Two can exfiltrate calendar events.[4]

FlexiSpy

FlexiSpy can collect the device calendars.[1]
Monokle

Monokle can retrieve calendar event information including the event name, when and where it is taking place, and the description.[5]

Pegasus for Android

Pegasus for Android accesses calendar entries.[2]
Stealth Mango

Stealth Mango uploads calendar events and reminders.[3]

Mitigations

Mitigation Description
Application Vetting

On Android, accessing device calendar data requires that the app hold the READ_CALENDAR permission. Apps that request this permission could be closely scrutinized to ensure that the request is appropriate. On iOS, the app vetting process can determine whether apps access device calendar data, with extra scrutiny applied to any that do so.

Detection

On both Android (6.0 and up) and iOS, the user can view which applications have permission to access calendar information through the device settings screen, and the user can choose to revoke the permissions.

References

  1. Actis B. (2017, April 22). FlexSpy Application Analysis. Retrieved September 4, 2019.
  2. Mike Murray. (2017, April 3). Pegasus for Android: the other side of the story emerges. Retrieved April 16, 2017.
  3. Lookout. (n.d.). Stealth Mango & Tangelo. Retrieved September 27, 2018.
  1. Security Without Borders. (2019, March 29). Exodus: New Android Spyware Made in Italy. Retrieved September 3, 2019.
  2. Bauer A., Kumar A., Hebeisen C., et al. (2019, July). Monokle: The Mobile Surveillance Tooling of the Special Technology Center. Retrieved September 4, 2019.