Malware Analysis Report

2024-09-09 13:51

Sample ID 240708-1ws8ds1cpl
Target 0a90db0dbda4a979ddd5966d62edbbf5a8d88e7ef317c8b62aaeffe1d3a5e24f.bin
SHA256 0a90db0dbda4a979ddd5966d62edbbf5a8d88e7ef317c8b62aaeffe1d3a5e24f
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

0a90db0dbda4a979ddd5966d62edbbf5a8d88e7ef317c8b62aaeffe1d3a5e24f

Threat Level: Known bad

The file 0a90db0dbda4a979ddd5966d62edbbf5a8d88e7ef317c8b62aaeffe1d3a5e24f.bin was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan

Octo

Octo payload

Removes its main activity from the application launcher

Queries the phone number (MSISDN for GSM devices)

Makes use of the framework's Accessibility service

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

Loads dropped Dex/Jar

Makes use of the framework's foreground persistence service

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

Requests modifying system settings.

Performs UI accessibility actions on behalf of the user

Requests accessing notifications (often used to intercept notifications before users become aware).

Queries the mobile country code (MCC)

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

Reads information about phone network operator.

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

Declares services with permission to bind to the system

Acquires the wake lock

Uses Crypto APIs (Might try to encrypt user data)

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

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-08 22:00

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 from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
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 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 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

2024-07-08 22:00

Reported

2024-07-08 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

179s

Max time network

185s

Command Line

com.canuntilnl

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

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

Removes its main activity from the application launcher

stealth trojan evasion
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.canuntilnl/cache/wzkzcnuhienwd N/A N/A
N/A /data/user/0/com.canuntilnl/cache/wzkzcnuhienwd 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
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 accessing notifications (often used to intercept notifications before users become aware).

collection credential_access
Description Indicator Process Target
Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS N/A N/A

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 modifying system settings.

evasion
Description Indicator Process Target
Intent action android.settings.action.MANAGE_WRITE_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

Processes

com.canuntilnl

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.202:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.46:443 android.apis.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.canuntilnl/cache/wzkzcnuhienwd

MD5 ce98f7722d56ad151cfdd92de17d89b9
SHA1 ae145b9135dd8a4c9e43d343c98969990e4b7ce9
SHA256 6c991e006a0adb46adbb62fc1a1506be877325930f19112ba588b77f356f8d68
SHA512 60b2e3f43522990596a37c872856a418f48cfbb7847231135808f2c1b945c637e48091f786b87ac519eb2817e44f87b5ffbc6772ac1b21478aa6edddd70fff23

/data/data/com.canuntilnl/cache/oat/wzkzcnuhienwd.cur.prof

MD5 7e959f894eb7e2c2dfdd8b998285b6c1
SHA1 9d19850637b4b6aeaab22a3e47fbb5d220f3620d
SHA256 fe1f0441cfa868e7ddc8892b4ddfe4655dbe9a6438c0b3cfc1aa73cf4fcb9a8b
SHA512 34abbc43e21e6852d9e9cfde2371e7b983364e2bdc59ef31ae0f68b8befd652857da91b1580d5b75484177a19741f53129ba5f9686b6d5bad99b79e244fbadfc

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-08 22:00

Reported

2024-07-08 22:03

Platform

android-x64-arm64-20240624-en

Max time kernel

179s

Max time network

187s

Command Line

com.canuntilnl

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.canuntilnl/cache/wzkzcnuhienwd N/A N/A
N/A /data/user/0/com.canuntilnl/cache/wzkzcnuhienwd 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.findAccessibilityNodeInfosByViewId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId 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
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

Reads information about phone network operator.

discovery

Requests accessing notifications (often used to intercept notifications before users become aware).

collection credential_access
Description Indicator Process Target
Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS N/A N/A

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 modifying system settings.

evasion
Description Indicator Process Target
Intent action android.settings.action.MANAGE_WRITE_SETTINGS 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

Processes

com.canuntilnl

Network

Country Destination Domain Proto
GB 216.58.212.238:443 tcp
GB 216.58.212.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.178.8:443 ssl.google-analytics.com tcp
GB 142.250.187.228:443 tcp
GB 142.250.187.228:443 tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.200.36:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
GB 142.250.200.36:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.canuntilnl/cache/wzkzcnuhienwd

MD5 ce98f7722d56ad151cfdd92de17d89b9
SHA1 ae145b9135dd8a4c9e43d343c98969990e4b7ce9
SHA256 6c991e006a0adb46adbb62fc1a1506be877325930f19112ba588b77f356f8d68
SHA512 60b2e3f43522990596a37c872856a418f48cfbb7847231135808f2c1b945c637e48091f786b87ac519eb2817e44f87b5ffbc6772ac1b21478aa6edddd70fff23

/data/data/com.canuntilnl/cache/oat/wzkzcnuhienwd.cur.prof

MD5 2b45d424c912c617cb33b7128a8c7e8c
SHA1 8c4caef5f6559ea74039f4218efe5a0add2b19d4
SHA256 052a9f44d4332ccfa207af318226c9f7e8ed0f375ba1f6caf61d75d851b5066a
SHA512 627bd824bcd92b1cb23265e6e106eb60bcb04d9c697deef7d2d88f51fef23c4e8d87344c3b8e5ee26f386ad3eabcf7db3c23b3fa410bfca4038af79286d48498