Analysis
- custom tags
c2dropperexfiltrationobfuscatedotpoverlaysmsspywarestealer - max time kernel
146s - max time network
151s - platform
android-11_x64 - resource
android-x64-arm64-20260325-en - resource tags
arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20260325-enlocale:en-usos:android-11-x64system - submitted
19/08/2026, 00:58
Static task
static1
Behavioral task
behavioral1
Sample
faa774978f43368357f553a1e45a2f9465fcfa50c6c09dbf6004304db03bc641.apk
Resource
android-x64-arm64-20260325-en
General
- Target faa774978f43368357f553a1e45a2f9465fcfa50c6c09dbf6004304db03bc641.apk
- Size 1.1MB
- Sample260819-bbwekstfle
- SHA256 faa774978f43368357f553a1e45a2f9465fcfa50c6c09dbf6004304db03bc641
- MD5 3a7894158568751a1368f8c4852dfd89
- SHA1 b976946bf4b7c14ab16b9a3902b741b3667a23c8
- SHA512 edefa0bc8c259f1bd5e5d2ba371a1e45fcf4dcb3cd2a26eab1768da5f1e31e445aa6ebee48ef94a369744ee01ac928de3d1aebdbfcecf347d9dc6b26d451077e
- SSDEEP 24576:yEqHqsHBdnSjJW/PdsPLCD5Gt8iWpPWvaOLynIiUeMrG:yEQqiH8JW/Pd4LCD5G4P8LjZeMrG
- TLSH T189451242B7D9CA62E8FA27388E1B83D496207D50DF01535B7E81730D1D736C68E26FA6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
octo
-
https://64.89.163.37/ZWFlY2Q1NjdmZmI3/
-
https://46.151.182.213/ZWFlY2Q1NjdmZmI3/
-
https://a93f6d2b7SDSGx0k1m9q4r8s5v.com/ZWFlY2Q1NjdmZmI3/
-
https://h6d23bsdgsdsgsd8d7f1qk4m5x.com/ZWFlY2Q1NjdmZmI3/
-
https://5f46236sdgagjkkfhfhdxzh1k9m8s7q4x.com/ZWFlY2Q1NjdmZmI3/
-
https://34g9s7b6sdgjkkjkhjkgdsg0f6k1m8q5x.com/ZWFlY2Q1NjdmZmI3/
-
https://344d9g3sdgsgs8d1kjhjfjghdkhk7m5f2x.com/ZWFlY2Q1NjdmZmI3/
-
https://54sdf7sdskjjghgfkmdg3b6a0d1k9m8q.com/ZWFlY2Q1NjdmZmI3/
Extracted
-
octo
-
https://64.89.163.37/ZWFlY2Q1NjdmZmI3/
-
https://46.151.182.213/ZWFlY2Q1NjdmZmI3/
-
https://a93f6d2b7SDSGx0k1m9q4r8s5v.com/ZWFlY2Q1NjdmZmI3/
-
https://h6d23bsdgsdsgsd8d7f1qk4m5x.com/ZWFlY2Q1NjdmZmI3/
-
https://5f46236sdgagjkkfhfhdxzh1k9m8s7q4x.com/ZWFlY2Q1NjdmZmI3/
-
https://34g9s7b6sdgjkkjkhjkgdsg0f6k1m8q5x.com/ZWFlY2Q1NjdmZmI3/
-
https://344d9g3sdgsgs8d1kjhjfjghdkhk7m5f2x.com/ZWFlY2Q1NjdmZmI3/
-
https://54sdf7sdskjjghgfkmdg3b6a0d1k9m8q.com/ZWFlY2Q1NjdmZmI3/
Signatures
- Family: Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
- Octo payload 1 IoCs
resource yara_rule behavioral1/files/fstream-1.dat family_octo - Accessibility-driven UI automation to self-grant permissions 1 IoCs
Locates nodes in the Settings or package-installer user interface by text or view identifier and dispatches synthetic clicks. This lets the application approve its own permission dialogs, complete side-loading, and intercept attempts to reach the uninstall screen without any real user consent.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_Accessibility_AutoClick_SelfGrant - Android banker: accessibility service abuse with overlay injection 1 IoCs
DEX references AccessibilityService event hooks together with window-overlay creation and credential-capture primitives. This combination is the canonical Android banking-trojan pattern: the app reads screen content and injects fake login windows over legitimate banking apps.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_Overlay_Banker_AccessibilityAbuse - Contact harvesting with SMS self-propagation 1 IoCs
Reads the device contact list and sends messages to the retrieved numbers, the distribution mechanism behind SMS worm campaigns. The victim's own address book becomes the delivery channel, which is why these campaigns spread rapidly within a region.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_Contacts_SMS_Propagation - Notification listener abuse for OTP and message theft 1 IoCs
Binds a notification listener service and reads posted notification content, optionally dismissing notifications afterwards to hide them. This harvests one-time passcodes and private messages without ever requesting SMS permissions, which is why it has largely replaced SMS interception in modern ban
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_NotificationListener_OTP_Theft - Persistent WebSocket channel used for remote tasking 1 IoCs
Bundles a WebSocket client and opens a long-lived bidirectional connection, the transport typically used by Android remote-access tooling for live command dispatch and streaming. Suspicious when paired with surveillance capabilities rather than an obvious in-app messaging feature.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_WebSocket_C2_Channel - Runtime string decryption with reflective method dispatch 1 IoCs
Combines symmetric decryption or base64 decoding of embedded string tables with reflective class and method resolution, so sensitive API names never appear in plaintext. This defeats naive string-based detection and indicates deliberate anti-analysis engineering.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_Obfuscation_EncryptedStrings_Reflection - Silent screen capture via MediaProjection 1 IoCs
Acquires a MediaProjection session and pipes the virtual display into an image reader or encoder, enabling continuous capture of everything shown on screen including credentials and one-time codes. Combined with accessibility auto-approval this runs without further user interaction.
resource yara_rule behavioral1/files/fstream-1.dat ANDROID_MediaProjection_ScreenCapture - Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.morningriver8/cache/rppeihqw 4812 com.morningriver8 /data/user/0/com.morningriver8/cache/rppeihqw 4812 com.morningriver8 - Makes use of the framework's Accessibility service 4 TTPs 2 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.morningriver8 Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.morningriver8 - Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
- Queries the phone number (MSISDN for GSM devices) 1 TTPs
- Acquires the wake lock 1 IoCs
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.morningriver8 - Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs
Application may abuse the framework's foreground service to continue running in the foreground.
description ioc Process Framework service call android.app.IActivityManager.setServiceForeground com.morningriver8 - Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.morningriver8 - Reads information about phone network operator. 1 TTPs
- Schedules tasks to execute at a specified time 1 TTPs 1 IoCs
Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.
description ioc Process Framework service call android.app.job.IJobScheduler.schedule com.morningriver8 - Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.morningriver8
Processes
-
com.morningriver81⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
PID:4812
Network
MITRE ATT&CK Mobile v16
Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Input Injection
1Discovery
Software Discovery
1Security Software Discovery
1System Network Configuration Discovery
3Replay Monitor
Loading Replay Monitor...
Downloads
- Path /data/data/com.morningriver8/cache/oat/rppeihqw.cur.prof
- Size 2KB
- SHA256 bbddc2d2b6adec501f3ad5a1a9d917fb2c0a4a984592263f988a68ef36aba0c6
- MD5 7e57d7407ca17e6b303b762a1398c9e8
- SHA1 6c226804316fd7877a1b6d7106c7180618c3e5e6
- SHA512 e5f8f232de6a357691fb2def9788ecc2f287d25f59bd629874ebb31476a88918d536af2de809d05335845d090583314d19099df91b40551594699329481a21ae
- TLSH T1A7419D5C0530F346BEB48E2BA87192F848C23B881D27E90201AE37C90D781D353EE16A
- MD5 SHA1 SHA512 TLSH
- Path /data/data/com.morningriver8/cache/rppeihqw
- Size 1013KB
- SHA256 d9647737c30bcd6888723bd7d81192958a79cd855f5d91ba15bccd5163fa1f8e
- MD5 b582e2824a8a2cfb54265d75eee349fa
- SHA1 4cc8b644816d1e8f612f4c09e69768fc551f87d9
- SHA512 039f04fce803b4fd47b71d6c1cec282cb3d93e3e6833b2f027d6af69c4e75e21043f8927d4ac9d5c75dbc606de74ecad89f5f2694da4e8f0eb1104e389b817ea
- SSDEEP 12288:jq9WQrK4H+KIyrF7PpzNEQG5LW9e4paswbi7UOs3N2p52+gvfU3flzvkhiqfO:jxQ+SrNs26Gp52tfU3flzvkhih
- TLSH T107258ED396911FA7DE2C63387CF247542332B0862B638B0BC519DAB99C471E66FD4788
- MD5 SHA1 SHA512 SSDEEP TLSH