{
    "type": "bundle",
    "id": "bundle--68b9572e-de87-4982-ac90-2bb20aaf709a",
    "spec_version": "2.0",
    "objects": [
        {
            "type": "x-mitre-analytic",
            "id": "x-mitre-analytic--1f3c9114-ac86-4c1f-bb64-fb94d65ac78c",
            "created": "2025-10-21T15:10:28.402Z",
            "created_by_ref": "identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5",
            "revoked": false,
            "external_references": [
                {
                    "source_name": "mitre-attack",
                    "url": "https://attack.mitre.org/detectionstrategies/DET0667#AN1762",
                    "external_id": "AN1762"
                }
            ],
            "object_marking_refs": [
                "marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168"
            ],
            "modified": "2026-04-06T15:51:25.896Z",
            "name": "Analytic 1762",
            "description": "An application generates, imports, or accesses asymmetric keypairs (e.g., RSA/ECC), uses a public key to encrypt outbound data or establish encrypted sessions, and transmits resulting ciphertext in structured communication patterns. Detection correlates keypair lifecycle activity + asymmetric crypto API usage + data transformation + background execution context + network transmission, especially when inconsistent with expected application functionality.",
            "x_mitre_modified_by_ref": "identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5",
            "x_mitre_deprecated": false,
            "x_mitre_version": "1.1",
            "x_mitre_attack_spec_version": "3.3.0",
            "x_mitre_domains": [
                "mobile-attack"
            ],
            "x_mitre_platforms": [
                "Android"
            ],
            "x_mitre_log_source_references": [
                {
                    "x_mitre_data_component_ref": "x-mitre-data-component--9bde2f9d-a695-4344-bfac-f2dce13d121e",
                    "name": "MobileEDR:telemetry",
                    "channel": "App invokes asymmetric cryptographic operations (e.g., RSA/ECC keypair generation OR public key encryption OR signature operations) on outbound data buffers"
                },
                {
                    "x_mitre_data_component_ref": "x-mitre-data-component--9bde2f9d-a695-4344-bfac-f2dce13d121e",
                    "name": "MobileEDR:telemetry",
                    "channel": "Keypair generation, import, or access events (public/private key usage) occurring prior to network communication"
                },
                {
                    "x_mitre_data_component_ref": "x-mitre-data-component--2b3bfe19-d59a-460d-93bb-2f546adc2d2c",
                    "name": "MobileEDR:telemetry",
                    "channel": "App writes asymmetric-encrypted blobs or encoded ciphertext to local buffers or files prior to transmission"
                },
                {
                    "x_mitre_data_component_ref": "x-mitre-data-component--55c669d9-b42a-4cf6-a38a-07161b228ce9",
                    "name": "MobileEDR:telemetry",
                    "channel": "Asymmetric crypto operations occur while app_state=background OR device_locked=true OR no recent user interaction"
                },
                {
                    "x_mitre_data_component_ref": "x-mitre-data-component--b1e0bb80-23d4-44f2-b919-7e9c54898f43",
                    "name": "android:MDMLog",
                    "channel": "App not in approved cryptographic or secure communication category performing keypair + encryption + transmission behavior"
                }
            ],
            "x_mitre_mutable_elements": [
                {
                    "field": "TimeWindow",
                    "description": "Correlation window between keypair usage and outbound communication"
                },
                {
                    "field": "AllowedCryptoApps",
                    "description": "Apps expected to use asymmetric cryptography (e.g., secure messaging, VPN, enterprise auth apps)"
                },
                {
                    "field": "ForegroundStateRequired",
                    "description": "Whether key generation/encryption should occur only during user interaction"
                },
                {
                    "field": "KeyGenerationThreshold",
                    "description": "Frequency of keypair generation/import events considered anomalous"
                },
                {
                    "field": "PayloadSizeVariance",
                    "description": "Expected variability in payload sizes due to asymmetric encryption overhead"
                }
            ]
        }
    ]
}