Malware Analysis Report

2024-09-09 13:47

Sample ID 240531-m219asfc5s
Target 18882d9ff21a7417191421fc22bdf461d5f6f9060e947ec1030ce029476d0f3f.apk
SHA256 18882d9ff21a7417191421fc22bdf461d5f6f9060e947ec1030ce029476d0f3f
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

18882d9ff21a7417191421fc22bdf461d5f6f9060e947ec1030ce029476d0f3f

Threat Level: Known bad

The file 18882d9ff21a7417191421fc22bdf461d5f6f9060e947ec1030ce029476d0f3f.apk 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

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

Removes its main activity from the application launcher

Requests modifying system settings.

Makes use of the framework's Accessibility service

Prevents application removal

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 foreground persistence service

Queries the phone number (MSISDN for GSM devices)

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

Queries the mobile country code (MCC)

Loads dropped Dex/Jar

Acquires the wake lock

Requests dangerous framework permissions

Reads information about phone network operator.

Declares broadcast receivers with permission to handle system events

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

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

Declares services with permission to bind to the system

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-31 10:58

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 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
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 10:58

Reported

2024-05-31 11:01

Platform

android-x86-arm-20240514-en

Max time kernel

97s

Max time network

156s

Command Line

com.moveyear21

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A 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

Prevents application removal

evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction 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

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

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 modifying system settings.

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.moveyear21/cache/oxolywjtcrxmi N/A N/A
N/A /data/user/0/com.moveyear21/cache/oxolywjtcrxmi 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

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 phone number (MSISDN for GSM devices)

discovery

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

Acquires the wake lock

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

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.moveyear21

Network

Country Destination Domain Proto
GB 216.58.213.3:443 tcp
GB 142.250.200.14:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 www.ip-api.com udp
US 1.1.1.1:53 moneyeurolandbebek.net udp
US 208.95.112.1:80 www.ip-api.com tcp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp
US 1.1.1.1:53 moneyeurolandbabis.net udp
US 1.1.1.1:53 moneyeurolanddelicim.net udp
US 1.1.1.1:53 moneyeurolandscans.net udp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp
GB 172.217.169.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
GB 216.58.201.106:443 semanticlocation-pa.googleapis.com tcp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp

Files

/data/data/com.moveyear21/cache/oxolywjtcrxmi

MD5 b96988409895ed2bc8f56c302402e13c
SHA1 3afc2148a0435a8352c4196d8109b853abd2385c
SHA256 17aa860aee29ec109c3402b5fd65886d5cab9b4246cc6b8b7dbf484ff72eecc4
SHA512 e253c8b8dbdbff663e775f6da3f74e57a25c6f74ac4906a9fae3c743bcb613f077bdbb3fff53fbe7eecea8c2ad19ec68ce58adbc793eaae86a25aea617382e6f

/data/data/com.moveyear21/cache/oat/oxolywjtcrxmi.cur.prof

MD5 ffa01dd21cd77e79621390a33e6c71f0
SHA1 59f266b08838f15fffb07491b3b5bebdb65f0874
SHA256 2b04e8611abef3150b65d3884481b9d89dc0c1580115f08f0945b20989240b43
SHA512 d29e29ef88d08fea04c858c526fc729591d98c0a01a1fbb2e3144ba68b441535d5213810bc376d35fde39ccc0b7c4287446a4d456b725ce59b655f149ad396ce

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 10:58

Reported

2024-05-31 11:01

Platform

android-x64-arm64-20240514-en

Max time kernel

177s

Max time network

145s

Command Line

com.moveyear21

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A 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

Prevents application removal

evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction 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

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 modifying system settings.

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.moveyear21/cache/oxolywjtcrxmi N/A N/A
N/A /data/user/0/com.moveyear21/cache/oxolywjtcrxmi 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

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 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

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

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.moveyear21

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
US 1.1.1.1:53 www.ip-api.com udp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 moneyeurolandscans.net udp
US 1.1.1.1:53 moneyeuroland.net udp
BG 79.110.49.131:443 moneyeuroland.net tcp
BG 79.110.49.131:443 moneyeuroland.net tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.187.200:443 ssl.google-analytics.com tcp
GB 142.250.178.4:443 tcp
GB 142.250.178.4:443 tcp
BG 79.110.49.131:443 moneyeuroland.net tcp
BG 79.110.49.131:443 moneyeuroland.net tcp

Files

/data/user/0/com.moveyear21/cache/oxolywjtcrxmi

MD5 b96988409895ed2bc8f56c302402e13c
SHA1 3afc2148a0435a8352c4196d8109b853abd2385c
SHA256 17aa860aee29ec109c3402b5fd65886d5cab9b4246cc6b8b7dbf484ff72eecc4
SHA512 e253c8b8dbdbff663e775f6da3f74e57a25c6f74ac4906a9fae3c743bcb613f077bdbb3fff53fbe7eecea8c2ad19ec68ce58adbc793eaae86a25aea617382e6f

/data/user/0/com.moveyear21/cache/oat/oxolywjtcrxmi.cur.prof

MD5 8388e8a367f48b238d9021872c55ab7e
SHA1 de31db465ca1dbd2b381a31afa9eacf0cab2cbd3
SHA256 1c1a09eb2fba8ab69eb48376990279a08cbd3f796313f9c7efb378fa35fa411c
SHA512 1d9cd464148264b1238af4f47eb0e59df15d2578e72d9d6dd0c66cf4b5d536a7aa4b5b15d8a4f00781b690f9637b515123e5cac938570a05efbe480d36d978d3