Malware Analysis Report

2024-09-09 13:44

Sample ID 240519-1wxktaca57
Target 83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5.bin
SHA256 83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5
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

83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5

Threat Level: Known bad

The file 83c851c41d0e2efaf1c75fdb8073d53a5dbc78a79bf0fa100940656c09eb6cd5.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

Makes use of the framework's Accessibility service

Requests modifying system settings.

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

Removes its main activity from the application launcher

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

Prevents application removal

Makes use of the framework's foreground persistence service

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

Queries the mobile country code (MCC)

Loads dropped Dex/Jar

Queries the phone number (MSISDN for GSM devices)

Declares services with permission to bind to the system

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

Requests dangerous framework permissions

Declares broadcast receivers with permission to handle system events

Reads information about phone network operator.

Acquires the wake lock

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-19 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 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

2024-05-19 22:00

Reported

2024-05-19 22:07

Platform

android-x86-arm-20240514-en

Max time kernel

56s

Max time network

130s

Command Line

com.msmsyappeo

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

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.msmsyappeo/cache/emtbh N/A N/A
N/A /data/user/0/com.msmsyappeo/cache/emtbh 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

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.msmsyappeo

Network

Country Destination Domain Proto
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 marabarakaracadal3.shop udp
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 karacayaprakler.shop udp
US 1.1.1.1:53 hediyeverbana1.shop udp
US 1.1.1.1:53 marabarlartartan3.shop udp
US 1.1.1.1:53 marabaragnarsyba.shop udp
US 1.1.1.1:53 mesafekalarak334.shop udp
US 1.1.1.1:53 karayamakasatda.shop udp
US 1.1.1.1:53 yaprakkanatlarda.shop udp
US 1.1.1.1:53 marabatarakgelde.com udp
US 1.1.1.1:53 marabmabetderbana2.shop udp
GB 142.250.180.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp

Files

/data/data/com.msmsyappeo/cache/emtbh

MD5 f4125e3b6e6cdee1ae7eae45786559eb
SHA1 6855270dfa118a7ef05ffb8db810a23be407cba8
SHA256 94c82b07a25b6982fb15d812a9a4a9088974aeace423151c02c9e5285f685c54
SHA512 1ed81b8d3278fdf21fac277cc48e2b05574714ae4ca366545e61b74a77802795f715396379a31fbbdea5f46f1ef4ca4886c60faaf0e520d27c6845247f143dd2

/data/data/com.msmsyappeo/cache/oat/emtbh.cur.prof

MD5 cb445e5e05048332e4b10bc699d398df
SHA1 531ba3c5e26220245bb4c9d18ff6e4dd2ebf4c96
SHA256 477819182f4971abf6929418c13d98be7abe6704bb6dce5fd91c3a1466327a60
SHA512 7da0ac822ddaa2a500b7644c35177f7fae28839e731de5842d5d69f03596fa00c27ebd50072d1d211bd2d4fdc721d9da462f2bda45997cb2e607853d8d64d864

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-19 22:00

Reported

2024-05-19 22:07

Platform

android-x64-20240514-en

Max time kernel

177s

Max time network

177s

Command Line

com.msmsyappeo

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.msmsyappeo/cache/emtbh N/A N/A
N/A /data/user/0/com.msmsyappeo/cache/emtbh 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

Reads information about phone network operator.

discovery

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.msmsyappeo

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.16.238:443 tcp
GB 142.250.179.226:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.169.40:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 marabatarakgelde.com udp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
US 1.1.1.1:53 www.ip-api.com udp
US 1.1.1.1:53 marabarakaracadal3.shop udp
US 208.95.112.1:80 www.ip-api.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 marabaragnarsyba.shop udp
US 1.1.1.1:53 mesafekalarak334.shop udp
US 1.1.1.1:53 yaprakkanatlarda.shop udp
US 1.1.1.1:53 hediyeverbana1.shop udp
US 1.1.1.1:53 marabmabetderbana2.shop udp
US 1.1.1.1:53 marabarlartartan3.shop udp
US 1.1.1.1:53 karayamakasatda.shop udp
US 1.1.1.1:53 karacayaprakler.shop udp
GB 142.250.178.4:443 tcp
US 1.1.1.1:53 www.google.com udp
GB 216.58.201.100:443 www.google.com tcp

Files

/data/data/com.msmsyappeo/cache/emtbh

MD5 f4125e3b6e6cdee1ae7eae45786559eb
SHA1 6855270dfa118a7ef05ffb8db810a23be407cba8
SHA256 94c82b07a25b6982fb15d812a9a4a9088974aeace423151c02c9e5285f685c54
SHA512 1ed81b8d3278fdf21fac277cc48e2b05574714ae4ca366545e61b74a77802795f715396379a31fbbdea5f46f1ef4ca4886c60faaf0e520d27c6845247f143dd2

/data/data/com.msmsyappeo/cache/oat/emtbh.cur.prof

MD5 a57069af34fe595871ce65ac40631c77
SHA1 e32e1d98eab688e281bbf1c3a1838787e9856d50
SHA256 a2cda558ed751fe85c63b2f02ac9229d5154c523cbfb35029704fb73148e4945
SHA512 18c6cdb85234a78328bb2a55240b1788b80744e45be90956426bdcc71c612ff33ff30a16e45226d881a3e6bebea45a0a11c1ef91bbfcf4646595f719ac152587