Analysis
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max time kernel
149s -
max time network
151s -
platform
android-9_x86 -
resource
android-x86-arm-20240910-en -
resource tags
arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system -
submitted
25-12-2024 22:06
Static task
static1
Behavioral task
behavioral1
Sample
7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063.apk
Resource
android-33-x64-arm64-20240624-en
General
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Target
7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063.apk
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Size
2.4MB
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MD5
dd9da950467df226277f8523755e8525
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SHA1
735bc32e43c56ad75461b44db8ce652c4a6f38a5
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SHA256
7bd45c94d930aff2d02935445d928dd8cff157c0c140128031629d49f3b35063
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SHA512
96a0acd93d98252c907d3d0ac1c417ffd1a42807ec990720f956a24805ae2c3afcdb802ae7825e7f13566d3f02e08afad44f46bcec79d87d9a33a8f5172c5f9c
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SSDEEP
49152:BcS8joIt5N+gLbGoH5Z7uZnnokzndtI91AcLkQaxqMCG6HGu79B2XW0xQwcW/bX:x83b/GobuZZMpAQaxVCHXL2XWQQwcIX
Malware Config
Extracted
octo
https://tantuniayrankelle612.com/YzhkZjQwNDRkN2Uy/
https://hamsipilavuiyy6111.com/YzhkZjQwNDRkN2Uy/
https://kerebicyememtulumbayerim4151.com/YzhkZjQwNDRkN2Uy/
https://yakubupicaklicamad616t1.com/YzhkZjQwNDRkN2Uy/
Extracted
octo
https://tantuniayrankelle612.com/YzhkZjQwNDRkN2Uy/
https://hamsipilavuiyy6111.com/YzhkZjQwNDRkN2Uy/
https://kerebicyememtulumbayerim4151.com/YzhkZjQwNDRkN2Uy/
https://yakubupicaklicamad616t1.com/YzhkZjQwNDRkN2Uy/
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 -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.largethree9/cache/zwbhwvjikrqk 4216 com.largethree9 /data/user/0/com.largethree9/cache/zwbhwvjikrqk 4216 com.largethree9 -
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.largethree9 Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.largethree9 -
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.largethree9 -
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.largethree9 -
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.largethree9 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.largethree9 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.largethree9 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.largethree9 -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.largethree9 -
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.largethree9 -
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.largethree9 -
Requests modifying system settings. 1 IoCs
description ioc Process Intent action android.settings.action.MANAGE_WRITE_SETTINGS com.largethree9 -
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.largethree9 -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.largethree9
Processes
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com.largethree91⤵
- 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:4216
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
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
512B
MD50d8b5d986ef3f502d34fe08d879afb3d
SHA1556d5c9ed47e713f90a97d4cb9e5e8d22a4766e6
SHA256f42948405851b0b7473d3e42d14372c8adcedd386fef12f106ac6a36c65615f4
SHA5126b75a229bdb5d8b961746ff4fa0c1839ecebba93495ea345039a9c55640983941cae663c593bea82de4e0c5e9a192660ae7379a6020b001024218d8d28f656b7
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Filesize
2.3MB
MD5c49e369d7a69e88987af76e6da5f0591
SHA11784e588610213d99df2818b7ee080a1a8c2ce9b
SHA256da8125222ad10082552f1aaa508b25edfcbd53ff9bf99f76548317c8ea06efee
SHA5121a3037e469ebebfba596f4c267f72faa0784f000210cdba7ac33fcc374248e57d6d827d47887ffd0b74c66db517f5c7fefa28d492f53dd8b96052f226ee6a9ed