Analysis
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max time kernel
149s -
max time network
163s -
platform
android_x64 -
resource
android-x64-arm64-20240624-en -
resource tags
androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system -
submitted
20/01/2025, 13:27
Static task
static1
Behavioral task
behavioral1
Sample
file.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
file.apk
Resource
android-x64-arm64-20240624-en
General
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Target
file.apk
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Size
4.9MB
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MD5
3aa725662c012f2bf54b993467b2edd5
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SHA1
d2b8d88803c79e218fad64c736ad23c1386f3181
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SHA256
44fbc03f41d9478db9346c22b0d9854a2f2fa39e959a354e26fa8991a0669f12
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SHA512
50a7775daccd555bb716eb0a6c5499f5de6f7d9c96a93b8db8e78fbf33d13dd0f52fd016286f5f47c85246cb59517892df20bde403ac15611771cad03470f45d
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SSDEEP
49152:wWRsEXk0xyNKmY3XjU45iS7xrG+/G0Lf9xjVKScou/GQnzTT63lUmiLctkc:1RsXWyNjY3Xp5iSRG8PVKLPH8lOQf
Malware Config
Extracted
octo
https://8b230a871b7f1ff2a1ad9f9c07d6e67a.info
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 behavioral2/memory/4500-0.dex family_octo -
Loads dropped Dex/Jar 1 TTPs 1 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.nstar5machinemodules/[email protected] 4500 com.nstar5machinemodules -
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.nstar5machinemodules Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.nstar5machinemodules -
Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs
Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.
description ioc Process Framework service call android.content.IClipboard.addPrimaryClipChangedListener com.nstar5machinemodules -
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.nstar5machinemodules -
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.nstar5machinemodules -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.nstar5machinemodules -
Reads information about phone network operator. 1 TTPs
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Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.nstar5machinemodules -
Checks CPU information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/cpuinfo com.nstar5machinemodules -
Checks memory information 2 TTPs 1 IoCs
description ioc Process File opened for read /proc/meminfo com.nstar5machinemodules
Processes
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com.nstar5machinemodules1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4500
Network
MITRE ATT&CK Mobile v15
Defense Evasion
Download New Code at Runtime
1Foreground Persistence
1Input Injection
1Virtualization/Sandbox Evasion
2System Checks
2Credential Access
Clipboard Data
1Input Capture
2GUI Input Capture
1Keylogging
1Discovery
Software Discovery
1Security Software Discovery
1System Information Discovery
2System Network Configuration Discovery
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
48B
MD5046a414913add6f5bb60072c7db819b6
SHA1451ee4f6809260aec622d772fd329c7d0297a842
SHA256b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA5124e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c
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Filesize
322KB
MD577dc50489b9323274732d27dc8a4e803
SHA10e02a3595b62489d0739d771881da8604d117c65
SHA256c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820
SHA5120684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58
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/data/data/com.nstar5machinemodules/oat/x86_64/[email protected]
Filesize353B
MD5bf6a42ce3f578f27fceb3902476e8b35
SHA13c53316e0d8a22ae2f03d48571de66e69b6b1cf8
SHA2562ed544241bc488154b61aae70581666180ee5d4c1a6ae2bcdc2dc12b0cf6f251
SHA5129ebecfe984fd8dd1cfc35b618f5daeb06260e10d90d2f033020bf29299d5604e6e2124c1ab065f1f8490dc00edcbdeaea2c9e21cd6c7f177ab5cba3e33afe191
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/data/user/0/com.nstar5machinemodules/[email protected]
Filesize526KB
MD50ca0ac7aaa3bdf2153febb80fc2318aa
SHA17dd749da58a973266c035aefb762dc9c0d7b42e3
SHA25687df9c07bdd2706460228a00c7dc5bf75493d89b8606506f93c24e21aa7e8ee3
SHA5124f4efd3a13771b5442c949f4cc1fb2baf20e76653968f2bd1b62bb6a141f69ef13c2de4d5fb4170b3f2fdc29e2d9e0fb4ce90e9e6c662e9443070d998b194a7b