Malware Analysis Report

2024-09-09 13:50

Sample ID 240716-1zmj1sscqp
Target f1e4854bc5b5afd9f6d2bda246e09d37cae2b045d9cde6edc576664d01f1b7b8.bin
SHA256 f1e4854bc5b5afd9f6d2bda246e09d37cae2b045d9cde6edc576664d01f1b7b8
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

f1e4854bc5b5afd9f6d2bda246e09d37cae2b045d9cde6edc576664d01f1b7b8

Threat Level: Known bad

The file f1e4854bc5b5afd9f6d2bda246e09d37cae2b045d9cde6edc576664d01f1b7b8.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

Makes use of the framework's Accessibility service

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)

Queries the phone number (MSISDN for GSM devices)

Reads information about phone network operator.

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

Acquires the wake lock

Declares services with permission to bind to the system

Queries the mobile country code (MCC)

Requests modifying system settings.

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

Requests dangerous framework permissions

Declares broadcast receivers with permission to handle system events

Performs UI accessibility actions on behalf of the user

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

Makes use of the framework's foreground persistence service

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-16 22:05

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 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

2024-07-16 22:05

Reported

2024-07-16 22:25

Platform

android-x86-arm-20240624-en

Max time kernel

177s

Max time network

186s

Command Line

com.northfree00

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.northfree00/cache/qbdbkyrc N/A N/A
N/A /data/user/0/com.northfree00/cache/qbdbkyrc 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.northfree00

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 kesmecekarpuz8455.com udp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz.com udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
GB 142.250.187.206:443 android.apis.google.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 kesmecekarpuz878.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
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.northfree00/cache/qbdbkyrc

MD5 a661ebd2a6093fa75a2ca1d2f7434a3d
SHA1 550a18d7ef8cfa9e2f7760721c7dea40a1054638
SHA256 1145353d2b4479dbb74f298f7f14293cc1bb7c57dc6fd5ff48d9bb021cfcde8d
SHA512 9f5aee09935879d9fbc78e35c9aef8f10cc927c34428f3329aabbef90a16a809642cc6ce6cabf96f4f26fbdbfa66f91ab1fd9377328fbc5a9c047d643137e222

/data/data/com.northfree00/cache/oat/qbdbkyrc.cur.prof

MD5 cf99259511b1c97c0c8f347733065cfa
SHA1 64edefa923a2bbaae21ae323e7b410d06321df73
SHA256 eaa858f28f8c8e1f3d65533174623d11e96e8a10f083db67df0968f4d532e8e9
SHA512 8701d93da6acbddf351130a20289fa179a8479ef3a7127adab069f8a1424a606eea9b4212d87b6dcf2f8e1974d4469e21280e65cc96182a8e576d731b93247c0

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-16 22:05

Reported

2024-07-16 22:25

Platform

android-x64-arm64-20240624-en

Max time kernel

179s

Max time network

188s

Command Line

com.northfree00

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.northfree00/cache/qbdbkyrc N/A N/A
N/A /data/user/0/com.northfree00/cache/qbdbkyrc 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

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.northfree00

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 216.58.212.238:443 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 ssl.google-analytics.com udp
GB 142.250.179.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 kesmecekarpuz.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
RU 193.143.1.9:443 kesmecekarpuz.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
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
US 1.1.1.1:53 www.google.com udp
GB 172.217.169.68:443 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

Files

/data/data/com.northfree00/cache/qbdbkyrc

MD5 a661ebd2a6093fa75a2ca1d2f7434a3d
SHA1 550a18d7ef8cfa9e2f7760721c7dea40a1054638
SHA256 1145353d2b4479dbb74f298f7f14293cc1bb7c57dc6fd5ff48d9bb021cfcde8d
SHA512 9f5aee09935879d9fbc78e35c9aef8f10cc927c34428f3329aabbef90a16a809642cc6ce6cabf96f4f26fbdbfa66f91ab1fd9377328fbc5a9c047d643137e222

/data/data/com.northfree00/cache/oat/qbdbkyrc.cur.prof

MD5 fce0ac19d083a67b6ba2813ef4309ed3
SHA1 4e89eae39b6c0f37f8c3c307084fd965c7dfe00a
SHA256 d7ea60b620c8c6777405642f8b3d1e33c617c263405dfcfcd94195007196202a
SHA512 d7cdb27061417554cc6b4a3f8e7ce267a40780154f834bc159848ef3a728d02ce0251631fbbd4bfb772ed30b062afe867f8d83ed93e9ef2d0874c7e50bb061f6