Malware Analysis Report

2024-09-09 19:10

Sample ID 240427-kwlwbafh2y
Target 02e1301e6052cc378cc17bbc293c9987_JaffaCakes118
SHA256 efa196246d3a9916303620bfef0154b52816de9e100343b6a1da20f75673d30a
Tags
discovery evasion impact persistence privilege_escalation stealth trojan collection credential_access
score
8/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
8/10

SHA256

efa196246d3a9916303620bfef0154b52816de9e100343b6a1da20f75673d30a

Threat Level: Likely malicious

The file 02e1301e6052cc378cc17bbc293c9987_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery evasion impact persistence privilege_escalation stealth trojan collection credential_access

Removes its main activity from the application launcher

Obtains sensitive information copied to the device clipboard

Tries to add a device administrator.

Queries the phone number (MSISDN for GSM devices)

Checks memory information

Queries the mobile country code (MCC)

Queries information about running processes on the device

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

Checks if the internet connection is available

Declares broadcast receivers with permission to handle system events

Acquires the wake lock

Requests dangerous framework permissions

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

Reads information about phone network operator.

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-27 08:57

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

Requests dangerous framework permissions

Description Indicator Process Target
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 receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE 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 read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE 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 app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-27 08:57

Reported

2024-04-27 08:59

Platform

android-x86-arm-20240221-en

Max time kernel

149s

Max time network

139s

Command Line

com.rezina.serviceupdate

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Checks memory information

evasion discovery
Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses 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

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

Tries to add a device administrator.

privilege_escalation impact
Description Indicator Process Target
Intent action android.app.action.ADD_DEVICE_ADMIN N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Checks if the internet connection is available

discovery
Description Indicator Process Target
Framework service call android.net.IConnectivityManager.getActiveNetworkInfo N/A N/A

Reads information about phone network operator.

discovery

Processes

com.rezina.serviceupdate

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 empty.rezinaural.net udp
US 1.1.1.1:53 isset.taganrogrezina.net udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 216.58.204.74:443 semanticlocation-pa.googleapis.com tcp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 172.217.169.10:443 semanticlocation-pa.googleapis.com tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-27 08:57

Reported

2024-04-27 08:59

Platform

android-x64-20240221-en

Max time kernel

150s

Max time network

156s

Command Line

com.rezina.serviceupdate

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Checks memory information

evasion discovery
Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses 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 phone number (MSISDN for GSM devices)

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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Checks if the internet connection is available

discovery
Description Indicator Process Target
Framework service call android.net.IConnectivityManager.getActiveNetworkInfo N/A N/A

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

discovery

Reads information about phone network operator.

discovery

Processes

com.rezina.serviceupdate

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 142.250.187.200:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 empty.rezinaural.net udp
US 1.1.1.1:53 isset.taganrogrezina.net udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 172.217.169.42:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.201.110:443 android.apis.google.com tcp
GB 216.58.212.202:443 tcp
GB 142.250.187.196:443 tcp
GB 142.250.187.196:443 tcp
GB 216.58.204.66:443 tcp
GB 142.250.180.14:443 tcp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-04-27 08:57

Reported

2024-04-27 08:59

Platform

android-x64-arm64-20240221-en

Max time kernel

152s

Max time network

133s

Command Line

com.rezina.serviceupdate

Signatures

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Checks memory information

evasion discovery
Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener N/A N/A

Queries information about running processes on the device

discovery
Description Indicator Process Target
Framework service call android.app.IActivityManager.getRunningAppProcesses N/A N/A

Queries the phone number (MSISDN for GSM devices)

discovery

Tries to add a device administrator.

privilege_escalation impact
Description Indicator Process Target
Intent action android.app.action.ADD_DEVICE_ADMIN N/A N/A

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Checks if the internet connection is available

discovery
Description Indicator Process Target
Framework service call android.net.IConnectivityManager.getActiveNetworkInfo N/A N/A

Reads information about phone network operator.

discovery

Processes

com.rezina.serviceupdate

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.10:443 udp
GB 142.250.200.14:443 udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.201.110:443 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 empty.rezinaural.net udp
US 1.1.1.1:53 isset.taganrogrezina.net udp
GB 142.250.200.4:443 tcp
GB 142.250.200.4:443 tcp

Files

N/A