Analysis
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max time kernel
148s -
max time network
150s -
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
03/10/2024, 22:15
Static task
static1
Behavioral task
behavioral1
Sample
2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63.apk
Resource
android-x86-arm-20240910-en
Behavioral task
behavioral2
Sample
2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63.apk
Resource
android-33-x64-arm64-20240624-en
General
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Target
2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63.apk
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Size
509KB
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MD5
cf27af4f8bc4e46e10384f5362715c4f
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SHA1
0e081b61c5f6c036304e1daa9052dba6b06d7b7e
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SHA256
2d8a0cea968fba4b2f84886944a909e4098cc284fcb053cf99bfc9acb49e8d63
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SHA512
9cc921477ab4b8164f5fd0190eeb8ad98242ce77a4bb2de8fddb5f4887d32ceb66ca5ba7e9c4a5fa6a6d998a578c9912eb079c419db1eae286aae78a3eb4861d
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SSDEEP
12288:wqowq4opicDavFyM500vzNiQ79NdkHfIiihXlJBQ3Gv/MnW:oTicDgIMFRXNdd/JlJ+3GvUnW
Malware Config
Extracted
octo
https://mutesksek3421.com/MzQ1Yzk1ZGQ4ODY3/
https://adyesksockcem3421.com/MzQ1Yzk1ZGQ4ODY3/
https://adnndlga23cm.com/MzQ1Yzk1ZGQ4ODY3/
https://ad23cmxd.com/MzQ1Yzk1ZGQ4ODY3/
https://adbniskseekske2.com/MzQ1Yzk1ZGQ4ODY3/
Extracted
octo
https://mutesksek3421.com/MzQ1Yzk1ZGQ4ODY3/
https://adyesksockcem3421.com/MzQ1Yzk1ZGQ4ODY3/
https://adnndlga23cm.com/MzQ1Yzk1ZGQ4ODY3/
https://ad23cmxd.com/MzQ1Yzk1ZGQ4ODY3/
https://adbniskseekske2.com/MzQ1Yzk1ZGQ4ODY3/
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 payload 1 IoCs
resource yara_rule behavioral1/files/fstream-1.dat family_octo -
pid Process 4213 com.problemdecide8 -
Loads dropped Dex/Jar 1 TTPs 2 IoCs
Runs executable file dropped to the device during analysis.
ioc pid Process /data/user/0/com.problemdecide8/cache/nioresnsbd 4213 com.problemdecide8 /data/user/0/com.problemdecide8/cache/nioresnsbd 4213 com.problemdecide8 -
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.problemdecide8 Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId com.problemdecide8 -
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.problemdecide8 -
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.problemdecide8 -
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.problemdecide8 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.problemdecide8 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.problemdecide8 android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction com.problemdecide8 -
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
description ioc Process Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.problemdecide8 -
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.problemdecide8 -
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.problemdecide8 -
Requests modifying system settings. 1 IoCs
description ioc Process Intent action android.settings.action.MANAGE_WRITE_SETTINGS com.problemdecide8 -
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.problemdecide8 -
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
description ioc Process Framework API call javax.crypto.Cipher.doFinal com.problemdecide8
Processes
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com.problemdecide81⤵
- 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:4213
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
448KB
MD5fea8d3aad3647281ee250bb0adf30a52
SHA1d2b4775b551aa9fc78a54fc3ef0a69320f13edf0
SHA256dc37f60d1780355c9a71fa76bae77d0e8d2b52af4058a7ccc2a4fae7d8793aca
SHA512ec55ca370b598ff2a0264c8a234472995ecab62a71a463bd23d471a0091490d1f1b8dbf80ab21b929b26e05075e848814b2831f5f84e2a7daf4af919c82e9647
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Filesize
456B
MD574dfb08af2a5f99b33a383a89d5d453b
SHA161fecaac5a21c87b66bb77323fb2b6bd2ec53d10
SHA256f2ce039a391682509e8900fc5f371fc10c95499e6b6bec9d129602ca1f1d6660
SHA51208ad961163b7ed5179e1e0b85fa0860c90e135ef2ceb1c590302f24548a4269a22f7383a3d4928b5b3d550ee19bb7e9dc071cf59d60ad459ddb06c8e020b143c