Malware Analysis Report

2024-10-19 12:59

Sample ID 240825-hx3t4stbjp
Target clear.apk
SHA256 11c67c555c1ba93694cca7c15aefca46faad7db63f0c3e0dc52c103ca435d30a
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

11c67c555c1ba93694cca7c15aefca46faad7db63f0c3e0dc52c103ca435d30a

Threat Level: Known bad

The file clear.apk was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Octo

Octo payload

Loads dropped Dex/Jar

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

Requests disabling of battery optimizations (often used to enable hiding in the background).

Reads information about phone network operator.

Requests enabling of the accessibility settings.

Performs UI accessibility actions on behalf of the user

Makes use of the framework's foreground persistence service

Declares services with permission to bind to the system

Queries the unique device ID (IMEI, MEID, IMSI)

Acquires the wake lock

Queries the mobile country code (MCC)

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

Uses Crypto APIs (Might try to encrypt user data)

Registers a broadcast receiver at runtime (usually for listening for system events)

Checks CPU information

Checks memory information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 07:07

Signatures

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A
Required by notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 07:07

Reported

2024-08-25 07:12

Platform

android-x86-arm-20240624-en

Max time kernel

239s

Max time network

245s

Command Line

com.machine_applicationlf28

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A Anonymous-DexFile@0xc96f8000-0xc977b828 N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries the phone number (MSISDN for GSM devices)

discovery

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Makes use of the framework's foreground persistence service

evasion persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.setServiceForeground N/A N/A

Performs UI accessibility actions on behalf of the user

evasion
Description Indicator Process Target
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Reads information about phone network operator.

discovery

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Requests enabling of the accessibility settings.

Description Indicator Process Target
Intent action android.settings.ACCESSIBILITY_SETTINGS N/A N/A

Registers a broadcast receiver at runtime (usually for listening for system events)

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.machine_applicationlf28

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.180.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 143451d192bf1e9f3a73d092f174e671.info udp
US 104.238.61.140:443 143451d192bf1e9f3a73d092f174e671.info tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp

Files

/data/data/com.machine_applicationlf28/files/.w

MD5 4e73947cabb5db3f92ca85004981b754
SHA1 6d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA256 6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512 be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Anonymous-DexFile@0xc96f8000-0xc977b828

MD5 e288b4389026a4be2fe8c2d44c4234c8
SHA1 e8eab7478f924492b48b070de2a473fa72ab2ead
SHA256 0dc1451e270547123ac13878079c693adb06589fb606240c03611ade225c4295
SHA512 db8a318d398c8ce14c7a30a1a013ed691415146fcce38593cb84b0ee27326f6972b349f8a1da693f26930c24254af8eb6b4a7ccb7f1c723247bcf7d34c195675

/data/data/com.machine_applicationlf28/.global.com.machine_applicationlf28

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

/data/data/com.machine_applicationlf28/.global.com.machine_applicationlf28

MD5 55ff2bcc8ac6ff4fb0fbc3d099fd3567
SHA1 1a4e9c750697effca93ea836d76b04d578cba322
SHA256 ddbd98fdb68954d165efca6659e7aa111b127d8b4e923875a6fe12c6118e22dc
SHA512 28a57e0e4057988de2bba08c4bca10582cf1bdd73a8884ce4a23ab05502393a5784db9987440ef4e636fdbd90988f10a9a7be998440cead47c2b08b3744f6396

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 07:07

Reported

2024-08-25 07:12

Platform

android-x64-20240624-en

Max time kernel

3s

Max time network

245s

Command Line

com.machine_applicationlf28

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.machine_applicationlf28/[email protected] N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries the phone number (MSISDN for GSM devices)

discovery

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Processes

com.machine_applicationlf28

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.179.238:443 tcp
GB 142.250.200.34:443 tcp
GB 216.58.201.99:443 tcp
GB 216.58.201.99:443 tcp
GB 216.58.201.99:443 tcp
US 216.239.38.223:443 tcp
GB 172.217.169.42:443 tcp
BE 142.251.173.188:5228 tcp
US 216.239.38.223:443 tcp
GB 142.250.180.14:443 tcp
GB 172.217.169.42:443 tcp
GB 172.217.169.42:443 tcp
GB 172.217.16.228:443 tcp
US 1.1.1.1:53 accounts.google.com udp
US 1.1.1.1:53 accounts.google.com udp
BE 74.125.206.84:443 accounts.google.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.238:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 g.tenor.com udp
GB 142.250.187.202:443 g.tenor.com tcp
US 1.1.1.1:53 www.google.com udp
GB 216.58.204.68:443 www.google.com udp
GB 216.58.204.68:443 www.google.com tcp
GB 216.58.204.68:443 www.google.com tcp
US 1.1.1.1:53 143451d192bf1e9f3a73d092f174e671.info udp
US 104.238.61.140:443 143451d192bf1e9f3a73d092f174e671.info tcp
US 1.1.1.1:53 mdh-pa.googleapis.com udp
GB 216.58.212.202:443 mdh-pa.googleapis.com tcp
US 1.1.1.1:53 safebrowsing.googleapis.com udp
US 1.1.1.1:53 www.google.com udp
GB 216.58.213.4:443 www.google.com tcp
US 1.1.1.1:53 143451d192bf1e9f3a73d092f174e671.info udp
US 104.238.61.140:443 143451d192bf1e9f3a73d092f174e671.info tcp
US 104.238.61.140:443 143451d192bf1e9f3a73d092f174e671.info tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 www.youtube.com udp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 www.youtube.com udp
GB 216.58.212.206:443 www.youtube.com tcp
GB 142.250.187.206:443 android.apis.google.com tcp
GB 142.250.187.206:443 android.apis.google.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.179.228:443 www.google.com tcp
US 1.1.1.1:53 growth-pa.googleapis.com udp
GB 172.217.169.42:443 growth-pa.googleapis.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.169.72:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 accounts.google.com udp
US 1.1.1.1:53 accounts.google.com udp
BE 142.250.110.84:443 accounts.google.com tcp

Files

/data/data/com.machine_applicationlf28/files/.w

MD5 77dc50489b9323274732d27dc8a4e803
SHA1 0e02a3595b62489d0739d771881da8604d117c65
SHA256 c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820
SHA512 0684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58

/data/user/0/com.machine_applicationlf28/[email protected]

MD5 e288b4389026a4be2fe8c2d44c4234c8
SHA1 e8eab7478f924492b48b070de2a473fa72ab2ead
SHA256 0dc1451e270547123ac13878079c693adb06589fb606240c03611ade225c4295
SHA512 db8a318d398c8ce14c7a30a1a013ed691415146fcce38593cb84b0ee27326f6972b349f8a1da693f26930c24254af8eb6b4a7ccb7f1c723247bcf7d34c195675

/data/data/com.machine_applicationlf28/oat/x86_64/[email protected]

MD5 a5fc77024e7d6b013e8564866aa1dc13
SHA1 ecb8b55800705cd7b03ec14e0689ae85070a3b43
SHA256 93d690d1883aeb28e390837f925b5f9956d75e705e1b571cdecea1d2d1f21e2e
SHA512 6337b0b30451c2e2cbc3edd7170670ad1f0c3858a9cdefdf74f9ffba04151f2ed58a384202f58cb12d10e8374a9582dc61cf1d9bf30a3583b8eb036b84770bd4

/data/data/com.machine_applicationlf28/.global.com.machine_applicationlf28

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c