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TECHNIQUES
Enterprise
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Credential Access
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  1. Home
  2. Techniques
  3. Mobile
  4. Access Stored Application Data

Access Stored Application Data

Adversaries may access and collect application data resident on the device. Adversaries often target popular applications such as Facebook, WeChat, and Gmail.[1]

This technique requires either escalated privileges or for the targeted app to have stored the data in an insecure manner (e.g., with insecure file permissions or in an insecure location such as an external storage directory).

ID: T1409
Sub-techniques:  No sub-techniques
Tactic Type: Post-Adversary Device Access
Tactics: Collection, Credential Access
Platforms: Android, iOS
MTC ID: AUT-0
Version: 2.0
Created: 25 October 2017
Last Modified: 10 October 2019

Procedure Examples

Name Description
Desert Scorpion

Desert Scorpion can collect account information stored on the device.[2]
Exodus

Exodus Two extracts information from Facebook, Facebook Messenger, Gmail, IMO, Skype, Telegram, Viber, WhatsApp, and WeChat.[1]
FakeSpy

FakeSpy can collect account information stored on the device, as well as data in external storage.[3]
FlexiSpy

FlexiSpy uses a FileObserver object to monitor the Skype and WeChat database file and shared preferences to retrieve chat messages, account information, and profile pictures of the account owner and chat participants. FlexiSpy can also spy on popular applications, including Facebook, Hangouts, Hike, Instagram, Kik, Line, QQ, Snapchat, Telegram, Tinder, Viber, and WhatsApp.[4]
Mandrake

Mandrake can collect all accounts stored on the device.[5]
Pallas

Pallas retrieves messages and decryption keys for popular messaging applications and other accounts stored on the device.[6]
Pegasus for Android

Pegasus for Android accesses sensitive data in files, such as messages stored by the WhatsApp, Facebook, and Twitter applications. It also has the ability to access arbitrary filenames and retrieve directory listings.[7]
Pegasus for iOS

Pegasus for iOS accesses sensitive data in files, such as saving Skype calls by reading them out of the Skype database files.[8]
RCSAndroid

RCSAndroid can collect contacts and messages from popular applications, including Facebook Messenger, WhatsApp, Skype, Viber, Line, WeChat, Hangouts, Telegram, and BlackBerry Messenger.[9]
Skygofree

Skygofree has a capability to obtain files from other installed applications.[10]
SpyDealer

SpyDealer exfiltrates data from over 40 apps such as WeChat, Facebook, WhatsApp, Skype, and others.[11]
Tangelo

Tangelo accesses databases from WhatsApp, Viber, Skype, and Line.[12]

Mitigations

Mitigation Description
Application Vetting

Ensure applications do not store data in an insecure fashion, such as in unprotected external storage, without acknowledging the risk that the data can potentially be accessed or modified by other applications.
Use Recent OS Version

Most new versions of mobile operating systems include patches to newly discovered privilege escalation exploits used to root or jailbreak devices. Further, applications that target Android API level 28 or higher on Android 9.0 and above devices have a policy applied that prevents other applications from reading or writing data in their internal storage directories, regardless of file permissions.[13]

Detection

Accessing stored application data can be difficult to detect, and therefore enterprises may be better served focusing on detection at other stages of adversarial behavior.

References

  1. Security Without Borders. (2019, March 29). Exodus: New Android Spyware Made in Italy. Retrieved September 3, 2019.
  2. A. Blaich, M. Flossman. (2018, April 16). Lookout finds new surveillanceware in Google Play with ties to known threat actor targeting the Middle East. Retrieved September 11, 2020.
  3. O. Almkias. (2020, July 1). FakeSpy Masquerades as Postal Service Apps Around the World. Retrieved September 15, 2020.
  4. K. Lu. (n.d.). Deep Technical Analysis of the Spyware FlexiSpy for Android. Retrieved September 10, 2019.
  5. R. Gevers, M. Tivadar, R. Bleotu, A. M. Barbatei, et al.. (2020, May 14). Uprooting Mandrake: The Story of an Advanced Android Spyware Framework That Went Undetected for 4 Years. Retrieved July 15, 2020.
  6. Blaich, A., et al. (2018, January 18). Dark Caracal: Cyber-espionage at a Global Scale. Retrieved April 11, 2018.
  7. Mike Murray. (2017, April 3). Pegasus for Android: the other side of the story emerges. Retrieved April 16, 2017.
  1. Lookout. (2016). Technical Analysis of Pegasus Spyware. Retrieved December 12, 2016.
  2. Veo Zhang. (2015, July 21). Hacking Team RCSAndroid Spying Tool Listens to Calls; Roots Devices to Get In. Retrieved December 22, 2016.
  3. Nikita Buchka and Alexey Firsh. (2018, January 16). Skygofree: Following in the footsteps of HackingTeam. Retrieved September 24, 2018.
  4. Wenjun Hu, Cong Zheng and Zhi Xu. (2017, July 6). SpyDealer: Android Trojan Spying on More Than 40 Apps. Retrieved September 18, 2018.
  5. Lookout. (n.d.). Stealth Mango & Tangelo. Retrieved September 27, 2018.
  6. Google. (n.d.). Behavior changes: apps targeting API level 28+. Retrieved September 18, 2019.