Initial Access

The initial access tactic represents the vectors adversaries use to gain an initial foothold onto a mobile device.
ID: TA0027

Techniques

Techniques: 9
ID Name Description
T1475 Deliver Malicious App via Authorized App Store

Malicious applications are a common attack vector used by adversaries to gain a presence on mobile devices. Mobile devices often are configured to allow application installation only from an authorized app store (e.g., Google Play Store or Apple App Store). An adversary may seek to place a malicious application in an authorized app store, enabling the application to be installed onto targeted devices.

T1476 Deliver Malicious App via Other Means

Malicious applications are a common attack vector used by adversaries to gain a presence on mobile devices. This technique describes installing a malicious application on targeted mobile devices without involving an authorized app store (e.g., Google Play Store or Apple App Store). Adversaries may wish to avoid placing malicious applications in an authorized app store due to increased potential risk of detection or other reasons. However, mobile devices often are configured to allow application installation only from an authorized app store which would prevent this technique from working.

T1456 Drive-by Compromise

As described by Drive-by Compromise, a drive-by compromise is when an adversary gains access to a system through a user visiting a website over the normal course of browsing. With this technique, the user's web browser is targeted for exploitation. For example, a website may contain malicious media content intended to exploit vulnerabilities in media parsers as demonstrated by the Android Stagefright vulnerability .

T1458 Exploit via Charging Station or PC

If the mobile device is connected (typically via USB) to a charging station or a PC, for example to charge the device's battery, then a compromised or malicious charging station or PC could attempt to exploit the mobile device via the connection.

T1477 Exploit via Radio Interfaces

The mobile device may be targeted for exploitation through its interface to cellular networks or other radio interfaces.

T1478 Install Insecure or Malicious Configuration

An adversary could attempt to install insecure or malicious configuration settings on the mobile device, through means such as phishing emails or text messages either directly containing the configuration settings as an attachment, or containing a web link to the configuration settings. The device user may be tricked into installing the configuration settings through social engineering techniques .

T1461 Lockscreen Bypass

An adversary with physical access to a mobile device may seek to bypass the device's lockscreen.

T1444 Repackaged Application

An adversary could download a legitimate app, disassemble it, add malicious code, and then reassemble the app. The app would appear to be the original app but contain additional malicious functionality. The adversary could then publish this app to app stores or use another delivery technique.

T1474 Supply Chain Compromise

As further described in Supply Chain Compromise, supply chain compromise is the manipulation of products or product delivery mechanisms prior to receipt by a final consumer for the purpose of data or system compromise. Somewhat related, adversaries could also identify and exploit inadvertently present vulnerabilities. In many cases, it may be difficult to be certain whether exploitable functionality is due to malicious intent or simply inadvertent mistake.