Malware Analysis Report

2024-09-09 13:52

Sample ID 240624-1wnb5sxbrn
Target a4164c216423bf7e9fc332f01abedefd94790c0e4856ff5b348c18af5dba1b32.bin
SHA256 a4164c216423bf7e9fc332f01abedefd94790c0e4856ff5b348c18af5dba1b32
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

a4164c216423bf7e9fc332f01abedefd94790c0e4856ff5b348c18af5dba1b32

Threat Level: Known bad

The file a4164c216423bf7e9fc332f01abedefd94790c0e4856ff5b348c18af5dba1b32.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 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

Queries the mobile country code (MCC)

Requests modifying system settings.

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

Reads information about phone network operator.

Performs UI accessibility actions on behalf of the user

Acquires the wake lock

Makes use of the framework's foreground persistence service

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

Declares services with permission to bind to the system

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

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

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

2024-06-24 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

2024-06-24 22:00

Reported

2024-06-24 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

178s

Max time network

185s

Command Line

com.readlow99

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.readlow99/cache/vxqxjmac N/A N/A
N/A /data/user/0/com.readlow99/cache/vxqxjmac 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

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.readlow99

Network

Country Destination Domain Proto
GB 142.250.180.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 dertlikaygisiz04.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
US 1.1.1.1:53 sigaracokhojdur1.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp

Files

/data/data/com.readlow99/cache/vxqxjmac

MD5 e9c8c40e3874f55e50e88b166e92626b
SHA1 16c760864061e0379628a5a27885f9c063892b3e
SHA256 178ad95d7aaf8a4467195f8d168bad6f51188b403f5ed4080679b0a402822f4b
SHA512 da752f3dd9f0803aa6fa1fa862ef84988075340ced7db6b593f5b70a3aaa283336b13146454ab70ca81a840bde7ab31bc622a2b4027eab811e1f8f0a6b6dbabf

/data/data/com.readlow99/cache/oat/vxqxjmac.cur.prof

MD5 35bd0d6fa84f7226d8a0ff47edb41b6f
SHA1 9aa44cf5547672f6bfac837929f6818de30cc20f
SHA256 97a09cd0ba900a08c4078f73ec11806d3c8b8b9dfa7326eb81f4ea081fb24aa2
SHA512 6c153dba3eab38988c0cf02026fbf5cf05d4e6b6fa3e056b2fdb8031790495eef9297e35b404b213584e0de91bda1c6e387023680e46cfe34d0b9886d95ca197

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-24 22:00

Reported

2024-06-24 22:03

Platform

android-33-x64-arm64-20240624-en

Max time kernel

175s

Max time network

188s

Command Line

com.readlow99

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.readlow99/cache/vxqxjmac 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

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.readlow99

Network

Country Destination Domain Proto
GB 142.250.187.196:443 udp
GB 142.250.187.196:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 sigaracokhojdur1.com udp
US 1.1.1.1:53 dertlikaygisiz04.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.196:443 udp
US 172.64.41.3:443 udp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 172.217.16.227:443 tcp
GB 172.217.16.227:443 udp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.227:443 tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.196:443 www.google.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
GB 142.250.187.196:443 www.google.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp
RU 193.143.1.9:443 mamudoiledostadogru.com tcp

Files

/data/data/com.readlow99/cache/vxqxjmac

MD5 e9c8c40e3874f55e50e88b166e92626b
SHA1 16c760864061e0379628a5a27885f9c063892b3e
SHA256 178ad95d7aaf8a4467195f8d168bad6f51188b403f5ed4080679b0a402822f4b
SHA512 da752f3dd9f0803aa6fa1fa862ef84988075340ced7db6b593f5b70a3aaa283336b13146454ab70ca81a840bde7ab31bc622a2b4027eab811e1f8f0a6b6dbabf

/data/data/com.readlow99/cache/oat/vxqxjmac.cur.prof

MD5 71ae675bdf0e2b672759ecd72bb1917a
SHA1 597691c22aa0ce5b578eb6076798ef4113fc3427
SHA256 9b4d8801b0b59951bdca33060dc77bb706a3b8cd9184b179bb97f63c980d8d34
SHA512 7fe63abaa1624f60638b582bb621ca28b8d0332e8405eca5263ce9d7a8589d18cb25f80f7cc4587407b51221f6bd91759c52343783cb2359bef60035679b76a6