Malware Analysis Report

2024-09-09 13:48

Sample ID 240628-1wsxmatarg
Target a8cb6c8141982153fc69810ca043a2a26bf5ba9c936db49a4100e0d20f61d784.bin
SHA256 a8cb6c8141982153fc69810ca043a2a26bf5ba9c936db49a4100e0d20f61d784
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

a8cb6c8141982153fc69810ca043a2a26bf5ba9c936db49a4100e0d20f61d784

Threat Level: Known bad

The file a8cb6c8141982153fc69810ca043a2a26bf5ba9c936db49a4100e0d20f61d784.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

Loads dropped Dex/Jar

Queries the phone number (MSISDN for GSM devices)

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 Accessibility service

Requests dangerous framework permissions

Acquires the wake lock

Queries the mobile country code (MCC)

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

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

Reads information about phone network operator.

Requests modifying system settings.

Performs UI accessibility actions on behalf of the user

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

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

Makes use of the framework's foreground persistence service

Uses Crypto APIs (Might try to encrypt user data)

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

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-28 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 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 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

2024-06-28 22:00

Reported

2024-06-28 22:04

Platform

android-x86-arm-20240624-en

Max time kernel

179s

Max time network

182s

Command Line

com.ourpaper00

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.ourpaper00/cache/bqxbgmequoac N/A N/A
N/A /data/user/0/com.ourpaper00/cache/bqxbgmequoac 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.ourpaper00

Network

Country Destination Domain Proto
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 hastagapkamdanuzakdur.com udp
US 1.1.1.1:53 cocacolaiciyorumm.com udp
US 1.1.1.1:53 adisback.com udp
US 1.1.1.1:53 apkmikimseellemesinn2.com udp
RU 193.143.1.15:443 adisback.com tcp
US 1.1.1.1:53 apkmiacmayinlen.com udp
RU 193.143.1.15:443 adisback.com tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.201.106:443 semanticlocation-pa.googleapis.com tcp
US 1.1.1.1:53 colaicmutluol34.com udp
US 1.1.1.1:53 usomusikiyorumlaan.com udp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp

Files

/data/data/com.ourpaper00/cache/bqxbgmequoac

MD5 1c4b188533d98f029513af3ff17d2faa
SHA1 0fe8baa58c3f426aa8411d912703fe4c57ed38d1
SHA256 e6309db9f159386b8a3ef094071a646008208ac431059846d6cc9904761a4c91
SHA512 223805c8f7ab977cfaa9a5775a8628e21c66e5e241da4ffbb7621778ce4e25acf2e694b825d8b23636b38e9a3039a3c467a8cfe5ee7648982520b89c59419213

/data/data/com.ourpaper00/cache/oat/bqxbgmequoac.cur.prof

MD5 46a83d207d8f837d5a104bd63a0aba1e
SHA1 133434d8c243aa28c5f89db0beb23d4d609fe2cb
SHA256 580dead172030285bf1e289cc518865b9ff85c2e9d5d587a7d873a1224b06a8a
SHA512 cff11f502830e5b09dae052ea13c0adf083db9586f47541bbdb33b9af1b0c82859b1f2898e8961912a87a96f2698a5c3a31f6ff2982a89b7387518712caf9419

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 22:00

Reported

2024-06-28 22:03

Platform

android-x64-20240624-en

Max time kernel

178s

Max time network

186s

Command Line

com.ourpaper00

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.ourpaper00/cache/bqxbgmequoac N/A N/A
N/A /data/user/0/com.ourpaper00/cache/bqxbgmequoac 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

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

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.ourpaper00

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.201.104:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 cocacolaiciyorumm.com udp
US 1.1.1.1:53 apkmiacmayinlen.com udp
US 1.1.1.1:53 colaicmutluol34.com udp
US 1.1.1.1:53 hastagapkamdanuzakdur.com udp
US 1.1.1.1:53 apkmikimseellemesinn2.com udp
US 1.1.1.1:53 usomusikiyorumlaan.com udp
US 1.1.1.1:53 adisback.com udp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
GB 172.217.16.238:443 tcp
GB 216.58.201.98:443 tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp
RU 193.143.1.15:443 adisback.com tcp

Files

/data/data/com.ourpaper00/cache/bqxbgmequoac

MD5 1c4b188533d98f029513af3ff17d2faa
SHA1 0fe8baa58c3f426aa8411d912703fe4c57ed38d1
SHA256 e6309db9f159386b8a3ef094071a646008208ac431059846d6cc9904761a4c91
SHA512 223805c8f7ab977cfaa9a5775a8628e21c66e5e241da4ffbb7621778ce4e25acf2e694b825d8b23636b38e9a3039a3c467a8cfe5ee7648982520b89c59419213

/data/data/com.ourpaper00/cache/oat/bqxbgmequoac.cur.prof

MD5 5e1c91c9ebd2a690497fc5c173b055ae
SHA1 8c354d893499cbe444e4c874f5ab43a1db2ba30c
SHA256 65075779e554e890401592d14deee02ac2a2818043865059e3618415e614960b
SHA512 1beeb33699d45c50b43f9d5bd49ed574dd549348b2f1c5c661c6c83283f0ce11e6427f5ff24ffa54254f813f82dd9943d5a89924ef757a54c6fd69f24160f2bb