Malware Analysis Report

2024-12-07 17:10

Sample ID 241112-15yt8s1pc1
Target c408f44076aae38bd904307752ee8283a949fc5b4a66d70947260b1b50e4b540.bin
SHA256 c408f44076aae38bd904307752ee8283a949fc5b4a66d70947260b1b50e4b540
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

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

c408f44076aae38bd904307752ee8283a949fc5b4a66d70947260b1b50e4b540

Threat Level: Known bad

The file c408f44076aae38bd904307752ee8283a949fc5b4a66d70947260b1b50e4b540.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo payload

Octo family

Octo

Removes its main activity from the application launcher

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)

Makes use of the framework's Accessibility service

Declares services with permission to bind to the system

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

Queries the mobile country code (MCC)

Makes use of the framework's foreground persistence service

Requests modifying system settings.

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

Performs UI accessibility actions on behalf of the user

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

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

Reads information about phone network operator.

Acquires the wake lock

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-12 22:14

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 app to post notifications. android.permission.POST_NOTIFICATIONS 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 applications to use exact alarm APIs. android.permission.SCHEDULE_EXACT_ALARM 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

2024-11-12 22:14

Reported

2024-11-12 22:17

Platform

android-x86-arm-20240910-en

Max time kernel

148s

Max time network

150s

Command Line

com.familylarge36

Signatures

Octo

banker trojan infostealer rat octo

Octo family

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.familylarge36/cache/tewnxspniskqrdg N/A N/A
N/A /data/user/0/com.familylarge36/cache/tewnxspniskqrdg 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.familylarge36

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 76pethsop332.com udp
US 1.1.1.1:53 66pethsop332.com udp
US 1.1.1.1:53 32pethsop332.com udp
FR 194.59.31.15:443 66pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
GB 142.250.200.46:443 tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 756pethsop3312.com udp
US 1.1.1.1:53 52pethsop332.com udp
FR 194.59.31.15:443 52pethsop332.com tcp
US 1.1.1.1:53 86pethsop3532.com udp
FR 194.59.31.15:443 52pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp

Files

/data/data/com.familylarge36/cache/tewnxspniskqrdg

MD5 e9e98d021e08b5c9f11130d5f83fd8de
SHA1 2caa4d373b143af5738afca7e16d80a2a3622525
SHA256 e302857a55b5ed7c9b12dced7d739ac3260ddc75003eb8c9616ba9a987f8bc3e
SHA512 86f974263fdbfab0a53f3eb9a4984792a9d8da5e1b26a02770c905f76d49206f51df3115a06816a74975619e52a887d525ea5352e4f47213aac891df436cc2f9

/data/data/com.familylarge36/cache/oat/tewnxspniskqrdg.cur.prof

MD5 f705be2f0d955a922c82909cf9f2d0f6
SHA1 24ad3f116798019f975cae810582d414ff5022dc
SHA256 5022141cdd2c73742519fede25dcee955e91f4e0d2a96a20ad389b08e4d7ba46
SHA512 091bf29b4f52d20ccf760dfbc4b1a05ed28e8f64486349934ba58e1e028f99f2e4f6e0a9bf90cb9c8495224ca8bd3e9ca44631cdc18e028687a5d84dd35d018c

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-12 22:14

Reported

2024-11-12 22:17

Platform

android-x64-arm64-20240624-en

Max time kernel

149s

Max time network

155s

Command Line

com.familylarge36

Signatures

Octo

banker trojan infostealer rat octo

Octo family

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.familylarge36/cache/tewnxspniskqrdg N/A N/A
N/A /data/user/0/com.familylarge36/cache/tewnxspniskqrdg 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.familylarge36

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
GB 142.250.180.14:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
GB 216.58.212.206:443 android.apis.google.com tcp
US 1.1.1.1:53 766pethsop3232.com udp
US 1.1.1.1:53 76pethsop332.com udp
US 1.1.1.1:53 86pethsop3532.com udp
US 1.1.1.1:53 756pethsop3312.com udp
US 1.1.1.1:53 66pethsop332.com udp
US 1.1.1.1:53 52pethsop332.com udp
FR 194.59.31.15:443 52pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.180.8:443 ssl.google-analytics.com tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp
FR 194.59.31.15:443 52pethsop332.com tcp
US 1.1.1.1:53 32pethsop332.com udp
NL 188.190.10.17:443 32pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
NL 188.190.10.17:443 32pethsop332.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.228:443 www.google.com tcp
FR 194.59.31.15:443 52pethsop332.com tcp

Files

/data/data/com.familylarge36/cache/tewnxspniskqrdg

MD5 e9e98d021e08b5c9f11130d5f83fd8de
SHA1 2caa4d373b143af5738afca7e16d80a2a3622525
SHA256 e302857a55b5ed7c9b12dced7d739ac3260ddc75003eb8c9616ba9a987f8bc3e
SHA512 86f974263fdbfab0a53f3eb9a4984792a9d8da5e1b26a02770c905f76d49206f51df3115a06816a74975619e52a887d525ea5352e4f47213aac891df436cc2f9

/data/data/com.familylarge36/cache/oat/tewnxspniskqrdg.cur.prof

MD5 1bc9600d2f082e0de4b70fdc5798335a
SHA1 21559e1b94fe7a4933584cb8d16b94e7b7fe64b1
SHA256 1f7f79edd029d1876a328c51a9aa986e74e277f3ff588e1f469fbeae92ff3c37
SHA512 eaf22f7490adc398a7936468c255f6ef5093c5bed3aaca92a1838ed745a561257537bfea4160ed9ecb1fef9777483f50d7ad536cf8546e1850f8d9652a618f60