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ATT&CK techniqueDefense Evasion (Mobile)

T1406 Obfuscated Files or Information

Defense Evasion (Mobile)Mobile

As of 2026-10-05, T1406 (Obfuscated Files or Information) appears in 25 tracked threats, first reported 2026-03-07 and most recently 2026-09-28, with linked actors including MoYu Group, APT37, Cyber Av3ngers; it most often appears alongside T1437 (Application Layer Protocol).

Tracked threats
252 critical, 21 high, 1 medium, 1 low
First seen
2026-03-07
Last seen
2026-09-28
Threat actors
4In the threats using it
Detection rules
26Blue tier and above

Data as of:

Activity timeline

T1406 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 8 reports, and 25 of the 25 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1406 Obfuscated Files or Information is catalogued by MITRE ATT&CK under the Defense Evasion (Mobile) tactic in the Mobile matrix. Threadlinqs maps 25 of 2623 tracked threats (1%) to it; by severity that is 2 critical, 21 high, 1 medium, 1 low.

Threats that use T1406 most often also use T1437 Application Layer Protocol (23 threats), T1660 Phishing (18 threats), T1426 System Information Discovery (16 threats), T1513 Screen Capture (16 threats), T1417 Input Capture (15 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

4 tracked threat actors appear in the threats that use T1406; the most frequent are MoYu Group (2), APT37 (1), Cyber Av3ngers (1), NSO Group (1).

Threat actors using it

Tracked threats

25 tracked threats use T1406.

Detection coverage

Threadlinqs maintains 26 detection rules mapped to T1406 (SPL 6, KQL 10, Sigma 10). Rule content is available to Blue tier accounts and above; this page shows counts only.

26 detection rules (SPL/KQL/Sigma) · Blue and above. Compare plans

Sub-techniques

  • T1406.001 Steganography — 1 tracked threat
  • T1406.002 Software Packing — 6 tracked threats