t1636-001-calendar-entries

name	T1636.001_calendar-entries
description	Adversaries may utilize standard operating system APIs to gather calendar entry data.
category	information-gathering
version	18.1
author	cyberstrike-official
tags	["mitre-attack","mobile","t1636.001","collection","android","ios","sub-technique"]
technique_id	T1636.001
tactic	collection
all_tactics	["collection"]
platforms	["Android","iOS"]
mitre_url	https://attack.mitre.org/techniques/T1636/001
tech_stack	["android","ios"]
cwe_ids	["CWE-200"]
chains_with	["T1636","T1636.002","T1636.003","T1636.004","T1636.005"]
prerequisites	["T1636"]
severity_boost	{"T1636":"Chain with T1636 for deeper attack path","T1636.002":"Chain with T1636.002 for deeper attack path","T1636.003":"Chain with T1636.003 for deeper attack path"}

T1636.001 Calendar Entries

Sub-technique of: T1636

High-Level Description

Adversaries may utilize standard operating system APIs to gather calendar entry data. On Android, this can be accomplished using the Calendar Content Provider. On iOS, this can be accomplished using the EventKit framework.

If the device has been jailbroken or rooted, an adversary may be able to access Calendar Entries without the user’s knowledge or approval.

Kill Chain Phase

• Collection (TA0035)

Platforms: Android, iOS

What to Check

• Identify if Calendar Entries technique is applicable to target mobile environment
• Check Android devices for indicators of Calendar Entries
• Check iOS devices for indicators of Calendar Entries
• Verify mitigations are bypassed or absent (1 known mitigations)
• Assess detection coverage (1 detection strategies)

How to Test

Identify Attack Surface

Determine if the target mobile environment is susceptible to Calendar Entries by examining the target platforms (Android, iOS).

Assess Existing Defenses

Review whether mitigations for T1636.001 are in place. If defenses are absent or misconfigured, this technique may be exploitable.

Remediation Guide

M1011 User Guidance

Calendar access is an uncommonly needed permission, so users should be instructed to use extra scrutiny when granting access to their device calendar.

Detection

Detection of Calendar Entries

Risk Assessment

Finding	Severity	Impact
Calendar Entries technique applicable	Low	Collection

CWE Categories

CWE ID	Title
CWE-200	Exposure of Sensitive Information

References

• NIST Mobile Threat Catalogue