Malware Analysis Report

2024-09-09 17:32

Sample ID 240613-pmj3ksydlc
Target com.supercell.brawlstars_v34.141-150_Android-4.3.apk
SHA256 320a1371971d6dcb5bb47f5837fa6c437886dfc546cfc89c59bc087a5267f73f
Tags
evasion persistence
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 Overview

score
8/10

SHA256

320a1371971d6dcb5bb47f5837fa6c437886dfc546cfc89c59bc087a5267f73f

Threat Level: Likely malicious

The file com.supercell.brawlstars_v34.141-150_Android-4.3.apk was found to be: Likely malicious.

Malicious Activity Summary

evasion persistence

Checks if the Android device is rooted.

Checks known Qemu pipes.

Requests dangerous framework permissions

Listens for changes in the sensor environment (might be used to detect emulation)

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

Enumerates physical storage devices

Checks CPU information

Suspicious use of WriteProcessMemory

Modifies registry class

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-13 12:27

Signatures

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 read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 12:26

Reported

2024-06-13 12:28

Platform

win7-20240611-en

Max time kernel

14s

Max time network

16s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\com.supercell.brawlstars_v34.141-150_Android-4.3.apk

Signatures

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000_Classes\Local Settings C:\Windows\system32\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2124 wrote to memory of 2780 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2124 wrote to memory of 2780 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2124 wrote to memory of 2780 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\com.supercell.brawlstars_v34.141-150_Android-4.3.apk

C:\Windows\system32\rundll32.exe

"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\com.supercell.brawlstars_v34.141-150_Android-4.3.apk

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 12:26

Reported

2024-06-13 12:31

Platform

android-x86-arm-20240611.1-en

Max time kernel

177s

Max time network

149s

Command Line

com.supercell.brawlstars

Signatures

Checks if the Android device is rooted.

evasion
Description Indicator Process Target
N/A /system/app/Superuser.apk N/A N/A
N/A /sbin/su N/A N/A

Checks known Qemu pipes.

evasion
Description Indicator Process Target
N/A /dev/socket/qemud N/A N/A
N/A /dev/qemu_pipe N/A N/A

Listens for changes in the sensor environment (might be used to detect emulation)

evasion
Description Indicator Process Target
Framework API call android.hardware.SensorManager.registerListener 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

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Processes

com.supercell.brawlstars

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 digitalassetlinks.googleapis.com udp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp

Files

/data/data/com.supercell.brawlstars/files/INSTALLATION

MD5 eaac96e4b26dbaf87b4c3e81f2b69bf1
SHA1 2b8a8c3956bddb5a7d203a83b6aae85e7c71f3b9
SHA256 424d115e59d890f38ad0d97738af82819806d48d71baa482db0a883fd7b40ca0
SHA512 17b221933d31c1ea7a93698236b7f0badac009e9be1ffcbb5c5ff2a127874f93f8465aaa5d14c736fc7454f56754b810b689048f7ebef48f7086fa3275db251e