Malware Analysis Report

2024-09-09 13:47

Sample ID 240531-p9fcxahe9y
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 payload

Octo

Prevents application removal

Removes its main activity from the application launcher

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)

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

Requests modifying system settings.

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

Loads dropped Dex/Jar

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Reads information about phone network operator.

Declares services with permission to bind to the system

Acquires the wake lock

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

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

Declares broadcast receivers with permission to handle system events

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-31 13:01

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 13:01

Reported

2024-05-31 13:04

Platform

android-x86-arm-20240514-en

Max time kernel

179s

Max time network

150s

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

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
GB 142.250.187.234:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 moneyeurolandscans.net udp
US 1.1.1.1:53 moneyeurolandbebek.net udp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp
US 1.1.1.1:53 www.ip-api.com udp
US 208.95.112.1:80 www.ip-api.com tcp
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 142.250.180.14:443 android.apis.google.com tcp
GB 172.217.169.74:443 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 92a74556ca23a0d15ccc917b08dd7735
SHA1 3f37080de75529aa8cc3690712d097664ce6963c
SHA256 a429c6a48f08e1fb505b830590ad16a0072251a863139077395f5e7e0e8413e2
SHA512 7d058749ced0e716e6a296225caac99b4bbb28fe1a6ebc6ffbb1669166b73c4ecd9b234cc01ae2f8610c1d94bc97a0966c9783e6352066a0ae718fe20bb2a600

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 13:01

Reported

2024-05-31 13:04

Platform

android-x64-arm64-20240514-en

Max time kernel

178s

Max time network

146s

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 142.250.200.46:443 tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
GB 142.250.187.206:443 android.apis.google.com tcp
US 1.1.1.1:53 moneyeurolandbebek.net 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 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 216.58.201.100:443 tcp
GB 216.58.201.100:443 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 ca8b55325feba8eada1d5ec7f6ad14f8
SHA1 c371ccba918cc32fde7a3aa57a6f14be32d5af88
SHA256 85792b4c08f816fcad902de5482bc10b205d8c62b0fb842a448612b0359ed149
SHA512 619696e65c0c7b1ecf5931e36ce65813f7f78810e8cd620c4d3e4f5999d2a226defcb318b618e3cb04f82a2e0c79ee3450106f65e8608117b6b3de8dcbfae7a5