Malware Analysis Report

2024-10-19 12:58

Sample ID 240823-1wqr9s1fmm
Target 5d38f3bfe01273ecc6d350fe8a6abf36834f0d095a244c9d3245719584f9dc8b.bin
SHA256 5d38f3bfe01273ecc6d350fe8a6abf36834f0d095a244c9d3245719584f9dc8b
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

Mobile Matrix V15

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

5d38f3bfe01273ecc6d350fe8a6abf36834f0d095a244c9d3245719584f9dc8b

Threat Level: Known bad

The file 5d38f3bfe01273ecc6d350fe8a6abf36834f0d095a244c9d3245719584f9dc8b.bin 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

Removes its main activity from the application launcher

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

Loads dropped Dex/Jar

Declares broadcast receivers with permission to handle system events

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

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

Declares services with permission to bind to the system

Reads information about phone network operator.

Queries the mobile country code (MCC)

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

Makes use of the framework's foreground persistence service

Requests modifying system settings.

Performs UI accessibility actions on behalf of the user

Requests dangerous framework permissions

Acquires the wake lock

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-23 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 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

2024-08-23 22:00

Reported

2024-08-23 22:06

Platform

android-x86-arm-20240624-en

Max time kernel

175s

Max time network

181s

Command Line

com.mostround3

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.mostround3/cache/ykgeaubv N/A N/A
N/A /data/user/0/com.mostround3/cache/ykgeaubv 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.mostround3

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.180.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 kemikadam252.com udp
US 1.1.1.1:53 selamcanm6142.com udp
US 1.1.1.1:53 parlementsigara651.com udp
US 1.1.1.1:53 belkemigi6525.com udp
US 1.1.1.1:53 nabertglalfa.com udp
US 1.1.1.1:53 hasbelgar56142.com udp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp

Files

/data/data/com.mostround3/cache/ykgeaubv

MD5 fac0dba64de7ec3f92f0acadf0d73b53
SHA1 fa0154104393f536e83e42cfa259cd7d1533d7ed
SHA256 61cb2e7a11a21d8d5d22fe09c8e4d698766cdbe698c353bc454e6cb54cbbed7a
SHA512 e6e219cd866cd1f5d49f8ed01233916721a3fd4cbba081711635cffeab92f73026119eb77cc182655b85e2c0e4a45257e01a334a60707633e4b0aa173911c3bb

/data/data/com.mostround3/cache/oat/ykgeaubv.cur.prof

MD5 c605922a8b2d308a3bf61d22d970d4a5
SHA1 01cddd121e029a3d3d07c417749cbc0841a0c543
SHA256 930626b77cc80a0ab2f0a127b9c619e13430593f4511ea975c1c959c708619af
SHA512 ec2d9544bd196eb6f1b71bb00f28be8f1155cadb1cdcaad032f955ead89bf0d4588e6523038ccfa891d3625d800dbba705aeb987367ba7f1512466d457b9abe7

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-23 22:00

Reported

2024-08-23 22:06

Platform

android-x64-arm64-20240624-en

Max time kernel

179s

Max time network

187s

Command Line

com.mostround3

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.mostround3/cache/ykgeaubv N/A N/A
N/A /data/user/0/com.mostround3/cache/ykgeaubv 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.mostround3

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.206:443 tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.180.14:443 android.apis.google.com tcp
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 kemikadam252.com udp
US 1.1.1.1:53 hasbelgar56142.com udp
US 1.1.1.1:53 selamcanm6142.com udp
US 1.1.1.1:53 parlementsigara651.com udp
US 1.1.1.1:53 belkemigi6525.com udp
US 1.1.1.1:53 nabertglalfa.com udp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
GB 142.250.187.228:443 tcp
GB 142.250.187.228:443 tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.179.228:443 www.google.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp
RU 193.143.1.25:443 nabertglalfa.com tcp

Files

/data/data/com.mostround3/cache/ykgeaubv

MD5 fac0dba64de7ec3f92f0acadf0d73b53
SHA1 fa0154104393f536e83e42cfa259cd7d1533d7ed
SHA256 61cb2e7a11a21d8d5d22fe09c8e4d698766cdbe698c353bc454e6cb54cbbed7a
SHA512 e6e219cd866cd1f5d49f8ed01233916721a3fd4cbba081711635cffeab92f73026119eb77cc182655b85e2c0e4a45257e01a334a60707633e4b0aa173911c3bb

/data/data/com.mostround3/cache/oat/ykgeaubv.cur.prof

MD5 613c2558e7fc6906378749f3ac084a24
SHA1 a65f59accf8c0052c2e88ffa8860acae96ec62ef
SHA256 2f8370a5919b4f90585c61f2cc6cbf7e9d3d7250f53c6222f5fee73ff14b8c9e
SHA512 7439812e157441732a8ca415364ce43a4c9a18570cd3e91ed5bbfa4ad3757bc631bf513ed73750172df189b0e0a7ebacbdcd7bc6d0146aec35b635dcb0c18fbf