Malware Analysis Report

2024-09-09 13:50

Sample ID 240707-1wyg4syfqj
Target 77131a05e4fc5377ab1987bb3a6947e7ba843de82288d6bf8a724c4e84395c54.bin
SHA256 77131a05e4fc5377ab1987bb3a6947e7ba843de82288d6bf8a724c4e84395c54
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

77131a05e4fc5377ab1987bb3a6947e7ba843de82288d6bf8a724c4e84395c54

Threat Level: Known bad

The file 77131a05e4fc5377ab1987bb3a6947e7ba843de82288d6bf8a724c4e84395c54.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

Removes its main activity from the application launcher

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

Loads dropped Dex/Jar

Queries the mobile country code (MCC)

Requests dangerous framework permissions

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

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

Performs UI accessibility actions on behalf of the user

Makes use of the framework's foreground persistence service

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

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Requests modifying system settings.

Reads information about phone network operator.

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

2024-07-07 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 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

2024-07-07 22:00

Reported

2024-07-07 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

170s

Max time network

181s

Command Line

com.actair4

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.actair4/cache/gsfoelpx N/A N/A
N/A /data/user/0/com.actair4/cache/gsfoelpx 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.actair4

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.213.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 moneyeurolanddelicim.net udp
FR 79.110.49.131:443 moneyeurolanddelicim.net 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
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.179.238:443 android.apis.google.com tcp
GB 216.58.213.10:443 semanticlocation-pa.googleapis.com tcp
US 1.1.1.1:53 moeurolandbabisde.net udp
FR 79.110.49.166:443 moeurolandbabisde.net tcp
US 1.1.1.1:53 moneyeuroland.net udp
FR 79.110.49.131:443 moneyeuroland.net tcp
FR 79.110.49.131:443 moneyeuroland.net tcp
FR 79.110.49.131:443 moneyeuroland.net tcp
FR 79.110.49.166:443 moeurolandbabisde.net tcp
US 1.1.1.1:53 moneyeurolandscans.net udp
FR 79.110.49.131:443 moneyeurolandscans.net tcp
FR 79.110.49.131:443 moneyeurolandscans.net tcp

Files

/data/data/com.actair4/cache/gsfoelpx

MD5 b72cce1bb0cc9645f0eafc889de24356
SHA1 4784b804f6c5518dabd25161a5a145581ce540a4
SHA256 aebf0265deca47169ebb5b54aed97acc1d84ab2537a9c119b48ab111eb234ad5
SHA512 353034d1c869fc07793db15245c0124ebbb46e98b516a7e4af5715bde49413fa02ef31bd0c98e7885dee6e3aa1a6f47cbb7ede8841ee7b11eface54948a5e5e1

/data/data/com.actair4/cache/oat/gsfoelpx.cur.prof

MD5 f3fc82ffdb68b0ee4fbac7cabab3e334
SHA1 ba2b74ffb1cd8b8b7ff3ebd7564de869e416b81c
SHA256 201057d18a819785118c8057d4ea5d2266dc341f2e518a41082043024ae62cc1
SHA512 d6e4ef062edb2bdcee7aedee99ff865b9042492794b200658d341d9c138f010251f006c87c472b1e393114abdcd7ea65237f29d758cd754bcac6de0ce1ab628b

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-07 22:00

Reported

2024-07-07 22:03

Platform

android-x64-arm64-20240624-en

Max time kernel

178s

Max time network

186s

Command Line

com.actair4

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.actair4/cache/gsfoelpx N/A N/A
N/A /data/user/0/com.actair4/cache/gsfoelpx 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.actair4

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 moneyeuroland.net udp
US 1.1.1.1:53 www.ip-api.com udp
FR 79.110.49.131:443 moneyeuroland.net tcp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 moneyeurolandscans.net udp
FR 79.110.49.131:443 moneyeurolandscans.net tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp
FR 79.110.49.131:443 moneyeurolandscans.net tcp
US 1.1.1.1:53 moneyeurolanddelicim.net udp
FR 79.110.49.131:443 moneyeurolanddelicim.net tcp
FR 79.110.49.131:443 moneyeurolanddelicim.net tcp
FR 79.110.49.131:443 moneyeurolanddelicim.net tcp
US 1.1.1.1:53 moneyeurolandbabis.net udp
US 1.1.1.1:53 moneyeurolandbebek.net udp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
US 1.1.1.1:53 moeurolandbabisde.net udp
FR 79.110.49.166:443 moeurolandbabisde.net tcp
FR 79.110.49.166:443 moeurolandbabisde.net tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.228:443 www.google.com tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
FR 79.110.49.131:443 moneyeurolandbebek.net tcp
FR 79.110.49.166:443 moeurolandbabisde.net tcp

Files

/data/user/0/com.actair4/cache/gsfoelpx

MD5 b72cce1bb0cc9645f0eafc889de24356
SHA1 4784b804f6c5518dabd25161a5a145581ce540a4
SHA256 aebf0265deca47169ebb5b54aed97acc1d84ab2537a9c119b48ab111eb234ad5
SHA512 353034d1c869fc07793db15245c0124ebbb46e98b516a7e4af5715bde49413fa02ef31bd0c98e7885dee6e3aa1a6f47cbb7ede8841ee7b11eface54948a5e5e1

/data/user/0/com.actair4/cache/oat/gsfoelpx.cur.prof

MD5 7c168b7f715b05431efd7989c59eedf5
SHA1 c923e9b90454d4cd0e961e89ebe8aa42ce4253c6
SHA256 8983c746260a2528c0569cb4bcda19036a5ed7f370b06b496f5eeea20c23e8a0
SHA512 ea62db4400d1bc4a67ba63c6572c8fac70e243ce507d35f92a4c6aa17d5d1ee7a77c9c45289f70a7179b7ad6d98db3d54aedd969b042ad74768346c639649e42