Analysis
- custom tags
exfiltrationotpoverlaysmsstealer - max time kernel
76s - max time network
151s - platform
android-10_x64 - resource
android-x64-20260325-en - resource tags
arch:x64arch:x86image:android-x64-20260325-enlocale:en-usos:android-10-x64system - submitted
16/08/2026, 23:51
Static task
static1
Behavioral task
behavioral1
Sample
4d3ea6e701b950516b89a4be889a31635e9f892705f34345017d323bfcd6e110.apk
Resource
android-x86-arm-20260325-en
Behavioral task
behavioral2
Sample
4d3ea6e701b950516b89a4be889a31635e9f892705f34345017d323bfcd6e110.apk
Resource
android-x64-20260325-en
Behavioral task
behavioral3
Sample
4d3ea6e701b950516b89a4be889a31635e9f892705f34345017d323bfcd6e110.apk
Resource
android-x64-arm64-20260325-en
General
- Target 4d3ea6e701b950516b89a4be889a31635e9f892705f34345017d323bfcd6e110.apk
- Size 4.0MB
- Sample260816-3wefcazvg1
- SHA256 4d3ea6e701b950516b89a4be889a31635e9f892705f34345017d323bfcd6e110
- MD5 6f049fc4e5f85d53d1aaa158412edca3
- SHA1 d23d638b224dbbdb6ace0bdc3271fc17a924007c
- SHA512 084ade2f99dbc69de0d4c84535756da2db8f894b56f610826437d80e3747de39a08508c4411f2f2cfeef05639534a13e47e2737e0033c6b881f60781d2d20fde
- SSDEEP 98304:hL881QpaMRm8T2zisTfW1IK/hf9Usl6pLsH1WyN/MR:lBQp5/T2zi2e3ZmD6WyN/MR
- TLSH T17C16222AFF9EE41AC147E275815695F3D01414AA0620F65F2B3E815C2DE7C82BB0BEDD
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: FluBot
FluBot is an android banking trojan that uses overlays.
- FluBot payload 1 IoCs
resource yara_rule behavioral2/files/fstream-1.dat family_flubot - Android SMS interception and OTP exfiltration 1 IoCs
Registers a high-priority SMS_RECEIVED receiver, parses inbound message bodies and aborts the broadcast to hide messages from the user, alongside network exfiltration primitives. This is the standard 2FA/OTP theft pattern used to complete fraudulent transactions.
resource yara_rule behavioral2/files/fstream-1.dat ANDROID_SMS_OTP_Interception - 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 behavioral2/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 behavioral2/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 behavioral2/files/fstream-1.dat ANDROID_NotificationListener_OTP_Theft -
pid Process 5034 com.tencent.mobileqq - Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.tencent.mobileqq/app_apkprotector_dex/1ZSxwFVb.k7s 5034 com.tencent.mobileqq /data/user/0/com.tencent.mobileqq/app_apkprotector_dex/1ZSxwFVb.k7s 5034 com.tencent.mobileqq - Makes use of the framework's Accessibility service 4 TTPs 3 IoCs
Retrieves information displayed on the phone screen using AccessibilityService.
description ioc Process Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId com.tencent.mobileqq Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.tencent.mobileqq Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText com.tencent.mobileqq - Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
- 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.tencent.mobileqq - Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.tencent.mobileqq android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.tencent.mobileqq - Queries information about active data network 1 TTPs 1 IoCs
description ioc Process Framework service call android.net.IConnectivityManager.getActiveNetworkInfo com.tencent.mobileqq - Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.tencent.mobileqq
Processes
-
com.tencent.mobileqq1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries information about active data network
- Uses Crypto APIs (Might try to encrypt user data)
PID:5034
Network
MITRE ATT&CK Enterprise v16
MITRE ATT&CK Mobile v16
Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Hide Artifacts
1Suppress Application Icon
1Impair Defenses
1Prevent Application Removal
1Input Injection
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path /data/data/com.tencent.mobileqq/app_apkprotector_dex/1ZSxwFVb.k7s
- Size 2.7MB
- SHA256 58d6ae1d358508675cf791bbb3de96b8d8c97bbb960bc4075f8899cf2386baf6
- MD5 3da316472c35bd207a98bfd04b4244ce
- SHA1 4bad0a3c4627a0ebf0bcaa1e327eb243ca9d449e
- SHA512 e9331106619ff5dd8670471fe989d58b35dbf976f59e4fad2c8a07247d348b3eb513d3a0d6ccbb5a7620183062d5a1c30abcc5a5a61c843abd2d5f436b3ce406
- SSDEEP 24576:ZzRfKI4jVVm8qcq778Yhrj/9dyeQRppQv3Z1RK+92lvKOP24AmKEdRvNbsQ:qIV83DoEj2Q
- TLSH T1EAD5955E4B41ED00F6644B39CDBBDA3133AB62009F4B5F6713586B796983264BE026CF
- MD5 SHA1 SHA512 SSDEEP TLSH