Malware Analysis Report

2024-09-09 13:50

Sample ID 240710-1w1mgavcmd
Target bea3f6dd90868f3739c8529f223358917e0331d6f3610a77d25d12eac0c741f6.bin
SHA256 bea3f6dd90868f3739c8529f223358917e0331d6f3610a77d25d12eac0c741f6
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan stealth
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

bea3f6dd90868f3739c8529f223358917e0331d6f3610a77d25d12eac0c741f6

Threat Level: Known bad

The file bea3f6dd90868f3739c8529f223358917e0331d6f3610a77d25d12eac0c741f6.bin was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan stealth

Octo payload

Octo

Removes its main activity from the application launcher

Loads dropped Dex/Jar

Queries the phone number (MSISDN for GSM devices)

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)

Declares services with permission to bind to the system

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

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

Requests modifying system settings.

Acquires the wake lock

Makes use of the framework's foreground persistence service

Queries the mobile country code (MCC)

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

Performs UI accessibility actions on behalf of the user

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

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

2024-07-10 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 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: behavioral2

Detonation Overview

Submitted

2024-07-10 22:00

Reported

2024-07-10 22:04

Platform

android-33-x64-arm64-20240624-en

Max time kernel

179s

Max time network

188s

Command Line

com.stepstreetmmsa

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.stepstreetmmsa/cache/uqgxmogzjfmjdj 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.stepstreetmmsa

Network

Country Destination Domain Proto
GB 142.250.200.36:443 udp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 udp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
US 1.1.1.1:53 kesmecekarpuz.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 rcs-acs-tmo-us.jibe.google.com udp
US 216.239.36.155:443 rcs-acs-tmo-us.jibe.google.com tcp
US 1.1.1.1:53 remoteprovisioning.googleapis.com udp
GB 142.250.200.36:443 udp
GB 142.250.200.36:443 tcp
GB 216.58.204.68:443 udp
GB 216.58.204.68:443 tcp
GB 216.58.204.68:443 tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 142.250.180.3:443 tcp
US 172.64.41.3:443 udp
GB 142.250.180.3:443 udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
GB 216.58.201.99:443 tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.187.228:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
GB 142.250.187.228:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.stepstreetmmsa/cache/uqgxmogzjfmjdj

MD5 09952f1ecada924bdd9b32812410f374
SHA1 7e25673c1dcb522ef3efefe5d833528956ff5350
SHA256 1777fbd9529d3c45dfb96a48377f97d9b7ef42a7152db61caad36ffff6db0bcb
SHA512 9809c9dae36e6f6b5acda377a735216e5bc43d733a7b7222adc875cb8270c9dfd66dedfee0f095e190ba78a042593808cf64c7f2207c1cd37e187b681506e1bb

/data/data/com.stepstreetmmsa/cache/oat/uqgxmogzjfmjdj.cur.prof

MD5 249882a9843a5215d633ae557d392ba3
SHA1 e8ed899b7248c2918fabbcc33401153b1b16d6f8
SHA256 fa4ef89775e0ebf4d9466df53ebfef9e47254f0774308480730cdb49b1adeeff
SHA512 5562d167ecd8d7e35bc929ac30e523e705ddbe8e2b32fa8885b8ec4b3a5451d94cd1bae7949b154b1aa52ba4c525e97db5f948e8c63fb0ad01a53c9a963cff41

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-10 22:00

Reported

2024-07-10 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

178s

Max time network

187s

Command Line

com.stepstreetmmsa

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.stepstreetmmsa/cache/uqgxmogzjfmjdj N/A N/A
N/A /data/user/0/com.stepstreetmmsa/cache/uqgxmogzjfmjdj 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.stepstreetmmsa

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.204.74:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.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
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.stepstreetmmsa/cache/uqgxmogzjfmjdj

MD5 09952f1ecada924bdd9b32812410f374
SHA1 7e25673c1dcb522ef3efefe5d833528956ff5350
SHA256 1777fbd9529d3c45dfb96a48377f97d9b7ef42a7152db61caad36ffff6db0bcb
SHA512 9809c9dae36e6f6b5acda377a735216e5bc43d733a7b7222adc875cb8270c9dfd66dedfee0f095e190ba78a042593808cf64c7f2207c1cd37e187b681506e1bb

/data/data/com.stepstreetmmsa/cache/oat/uqgxmogzjfmjdj.cur.prof

MD5 985439d1afc8c4052049269f01a7a59e
SHA1 7e06efa630786b5a8313f9b08022ac6feb13fdba
SHA256 282a892f2ef8d9620b32bf3823efb10431424f46bae28abbac717a42ffbd46f1
SHA512 f8884baed2a985e732534a19f97af5b37bae50b68199a03cf6a56ae6f7325fb9db7f14d7ae6fa028026947b5afb3574d68ba4f7e3e07f03db32dd31cc9e7d266