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Analysis
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max time kernel
43s -
max time network
130s -
platform
android_x86 -
resource
android-x86-arm-20240624-en -
resource tags
androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system -
submitted
17/11/2024, 22:02
Static task
static1
Behavioral task
behavioral1
Sample
4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604.apk
Resource
android-x86-arm-20240624-en
Behavioral task
behavioral2
Sample
4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604.apk
Resource
android-33-x64-arm64-20240910-en
General
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Target
4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604.apk
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Size
2.4MB
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MD5
f21675d780257fe04690660551c7cfbb
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SHA1
55fab5f882c431e2b4bc0bb650afc00a2325d1bc
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SHA256
4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604
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SHA512
49882c824bb882fd0d0acdf49f8bd40685b1a04626d267e6bb3a836cfa19e77259f8a3f76fd6cb9910aedf1be19b59fd34bb0dcc50e04ceb060e18d540705ecc
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SSDEEP
49152:C9ydLD6xrmfVYZ61pCcCrBVDF5yQcOdyNJG+LGCBDz8o3PcWcPnBXfy:zkxqr0cCrTWxjKk5dzTcWcPnBa
Malware Config
Extracted
octo
https://malkafaniskm.com/NzY2NDZkZmViYjZj/
https://fukiyibartiyom2.com/NzY2NDZkZmViYjZj/
https://malkafali222.com/NzY2NDZkZmViYjZj/
https://oyunbaimlisi35.com/NzY2NDZkZmViYjZj/
https://mal1fukizmirli.com/NzY2NDZkZmViYjZj/
Extracted
octo
https://malkafaniskm.com/NzY2NDZkZmViYjZj/
https://fukiyibartiyom2.com/NzY2NDZkZmViYjZj/
https://malkafali222.com/NzY2NDZkZmViYjZj/
https://oyunbaimlisi35.com/NzY2NDZkZmViYjZj/
https://mal1fukizmirli.com/NzY2NDZkZmViYjZj/
Signatures
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Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
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Octo family
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Octo payload 1 IoCs
resource yara_rule behavioral1/files/fstream-1.dat family_octo -
pid Process 4215 com.decidesmall4 -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.decidesmall4/cache/ytooyiwkr 4215 com.decidesmall4 /data/user/0/com.decidesmall4/cache/ytooyiwkr 4215 com.decidesmall4 -
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.decidesmall4 Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.decidesmall4 -
Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
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Queries the phone number (MSISDN for GSM devices) 1 TTPs
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Acquires the wake lock 1 IoCs
description ioc Process Framework service call android.os.IPowerManager.acquireWakeLock com.decidesmall4 -
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.decidesmall4 -
Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs
Application may abuse the accessibility service to prevent their removal.
ioc Process android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.decidesmall4 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.decidesmall4 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.decidesmall4 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.decidesmall4 -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.decidesmall4 -
Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
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Reads information about phone network operator. 1 TTPs
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Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs
description ioc Process Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS com.decidesmall4 -
Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs
description ioc Process Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS com.decidesmall4 -
Requests modifying system settings. 1 IoCs
description ioc Process Intent action android.settings.action.MANAGE_WRITE_SETTINGS com.decidesmall4 -
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
description ioc Process Framework service call android.app.IActivityManager.registerReceiver com.decidesmall4 -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.decidesmall4
Processes
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com.decidesmall41⤵
- Removes its main activity from the application launcher
- 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
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests accessing notifications (often used to intercept notifications before users become aware).
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Requests modifying system settings.
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4215
Network
MITRE ATT&CK Mobile v15
Persistence
Event Triggered Execution
1Broadcast Receivers
1Foreground Persistence
1Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Hide Artifacts
2Suppress Application Icon
1User Evasion
1Impair Defenses
1Prevent Application Removal
1Input Injection
1Credential Access
Access Notifications
1Input Capture
2GUI Input Capture
1Keylogging
1Discovery
Software Discovery
1Security Software Discovery
1System Network Configuration Discovery
4Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
546B
MD50a3da922a0a7d54a3e860f5fe5c46a20
SHA1c8b226b29e647950096a62ce5459663545e1839e
SHA25601dca6e38c31cbbc0b5634c9c8fdd1bfdaad7b6c9f4564db59dc44a574077c88
SHA512089d0ebe3e5f4a1e1f5511df2a49caf72dad6f01c5bc23eb32fed252c1531e2ee97f9c5173486ec6846f371f5bf11e6e3d1f56af14b68b1bcb4dd7475baa449a
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Filesize
2.3MB
MD554cf7b17aab3cd8a3a4d14975fae07ad
SHA124667586e78cb919fe0e1bf1ba818e0f857eb791
SHA256585653b3bc676b696c28c4937a1678b5a84d0bae649f3110abd8b7853425f0ed
SHA5129224a37044f3bb07c0e89317b8bd12222d807e6c968a9bff2658be8a20cdcbac911ba9453a409367fab48c4430d8f5469627488ced1f8837c4e0179a3b19ced5