Malware Analysis Report

2025-04-03 09:08

Sample ID 250311-l71dhszzgz
Target e134ce8619c7ddf2b1c4640ea0b18111e7210a4f0aefb8df79d096718efa8763.apk
SHA256 e134ce8619c7ddf2b1c4640ea0b18111e7210a4f0aefb8df79d096718efa8763
Tags
evasion triada
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e134ce8619c7ddf2b1c4640ea0b18111e7210a4f0aefb8df79d096718efa8763

Threat Level: Known bad

The file e134ce8619c7ddf2b1c4640ea0b18111e7210a4f0aefb8df79d096718efa8763.apk was found to be: Known bad.

Malicious Activity Summary

evasion triada

Android Triada payload

Triada family

Loads dropped Dex/Jar

Declares services with permission to bind to the system

Requests dangerous framework permissions

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-03-11 10:11

Signatures

Android Triada payload

Description Indicator Process Target
N/A N/A N/A N/A

Triada family

triada

Declares services with permission to bind to the system

Description Indicator Process Target
Required by chooser target services to bind with the system. Allows apps to modify targets that handle user actions. android.permission.BIND_CHOOSER_TARGET_SERVICE N/A N/A
Required by remote views services to bind with the system. Allows apps to share and display views across different processes. android.permission.BIND_REMOTEVIEWS N/A N/A
Required by telecom connection services to bind with the system. Allows apps to manage phone call aspects such as call setup and notifications. android.permission.BIND_TELECOM_CONNECTION_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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 read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS N/A N/A
Required to be able to connect to paired Bluetooth devices. android.permission.BLUETOOTH_CONNECT N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an application to access any geographic locations persisted in the user's shared collection. android.permission.ACCESS_MEDIA_LOCATION N/A N/A
Required to be able to access the camera device. android.permission.CAMERA 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 record audio. android.permission.RECORD_AUDIO N/A N/A
Allows applications to use exact alarm APIs. android.permission.SCHEDULE_EXACT_ALARM N/A N/A
Allows an application to write the user's contacts data. android.permission.WRITE_CONTACTS 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 read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to read audio files from external storage. android.permission.READ_MEDIA_AUDIO N/A N/A
Allows an application to read image files from external storage. android.permission.READ_MEDIA_IMAGES N/A N/A
Allows an application to read video files from external storage. android.permission.READ_MEDIA_VIDEO N/A N/A
Allows an application to read image or video files from external storage that a user has selected via the permission prompt photo picker. android.permission.READ_MEDIA_VISUAL_USER_SELECTED N/A N/A
Allows an application to request installing packages. android.permission.REQUEST_INSTALL_PACKAGES N/A N/A
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS N/A N/A
Required to be able to advertise and connect to nearby devices via Wi-Fi. android.permission.NEARBY_WIFI_DEVICES N/A N/A
Required to be able to discover and pair nearby Bluetooth devices. android.permission.BLUETOOTH_SCAN N/A N/A
Required to be able to advertise to nearby Bluetooth devices. android.permission.BLUETOOTH_ADVERTISE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-03-11 10:11

Reported

2025-03-11 10:17

Platform

android-x86-arm-20240910-en

Max time kernel

1s

Max time network

152s

Command Line

com.yellowbird.waup

Signatures

N/A

Processes

com.yellowbird.waup

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
AU 1.1.1.1:53 digitalassetlinks.googleapis.com udp
GB 142.250.200.46:443 tcp
GB 142.250.200.46:443 tcp
AU 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
GB 142.250.187.196:80 tcp
GB 142.250.178.4:443 tcp
GB 142.250.187.195:80 tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2025-03-11 10:11

Reported

2025-03-11 10:14

Platform

android-x64-20240910-en

Max time network

2s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.212.234:443 tcp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2025-03-11 10:11

Reported

2025-03-11 10:17

Platform

android-x64-arm64-20240910-en

Max time kernel

1s

Max time network

150s

Command Line

com.yellowbird.waup

Signatures

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A

Processes

com.yellowbird.waup

Network

Country Destination Domain Proto
GB 142.250.200.46:443 tcp
AU 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.46:443 android.apis.google.com tcp
GB 216.58.201.106:443 tcp
N/A 224.0.0.251:5353 udp
AU 1.1.1.1:53 android.apis.google.com udp
AU 1.1.1.1:53 www.youtube.com udp
GB 216.58.212.238:443 www.youtube.com tcp
GB 216.58.212.206:443 www.youtube.com udp
GB 216.58.212.206:443 www.youtube.com tcp
GB 216.58.212.238:443 www.youtube.com tcp
AU 1.1.1.1:53 digitalassetlinks.googleapis.com udp
GB 172.217.16.234:443 digitalassetlinks.googleapis.com tcp
AU 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.213.8:443 ssl.google-analytics.com tcp
US 216.239.36.223:443 tcp
US 216.239.36.223:443 tcp
GB 142.250.200.1:443 tcp
GB 216.58.212.193:443 tcp
US 216.239.36.223:443 tcp
US 216.239.36.223:443 tcp
GB 216.58.201.106:443 tcp

Files

/system_ext/framework/androidx.window.sidecar.jar

MD5 bdf3529e80318eb14e53a5bf3720c10d
SHA1 25c9ace4b1af6e80ebb2572345972c56505969ba
SHA256 bbc8300dd1e9cd08de8f66560c1ac2c928615b72b51cef9649f88974f586d64b
SHA512 48b9c2d01171bb651b9b54826baa51f4add48431a3efd8ceb5f7cc3bcd6f8f37edf47fabb24349dd15b3a02329cd450f90a8d164bf4f8dfae554bf3b35a8a55b

Analysis: behavioral4

Detonation Overview

Submitted

2025-03-11 10:11

Reported

2025-03-11 10:17

Platform

android-33-x64-arm64-20240910-en

Max time kernel

1s

Max time network

152s

Command Line

com.yellowbird.waup

Signatures

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /system_ext/framework/androidx.window.extensions.jar N/A N/A
N/A /system_ext/framework/androidx.window.extensions.jar N/A N/A
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A
N/A /system_ext/framework/androidx.window.sidecar.jar N/A N/A

Processes

com.yellowbird.waup

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
AU 1.1.1.1:53 digitalassetlinks.googleapis.com udp
GB 142.250.180.10:443 digitalassetlinks.googleapis.com tcp
AU 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
AU 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
AU 1.1.1.1:53 remoteprovisioning.googleapis.com udp
GB 216.58.204.78:443 android.apis.google.com udp
GB 172.217.169.4:443 tcp
GB 172.217.169.4:443 tcp
AU 1.1.1.1:53 www.google.com udp
GB 216.58.204.68:443 www.google.com tcp
AU 1.1.1.1:53 www.google.com udp
GB 142.250.200.36:443 www.google.com udp
AU 1.1.1.1:53 www.google.com udp
GB 172.217.16.228:443 www.google.com tcp
GB 172.217.169.78:443 tcp
GB 142.250.178.1:443 tcp
GB 216.58.204.65:443 tcp
GB 142.250.180.6:80 tcp
US 216.239.32.36:443 tcp
GB 142.250.178.1:443 tcp
GB 142.250.178.1:443 tcp
GB 142.250.178.1:443 tcp
GB 142.250.180.2:443 tcp
GB 142.250.178.1:443 tcp

Files

/system_ext/framework/androidx.window.extensions.jar

MD5 3056e1bdb7d4e19789d0319eff484bd0
SHA1 6791ae47aa9466fe0bca27ad6643f846853bbee4
SHA256 8e6331a07c9f2ac139214c527dcaff2c82d126bbe7bd3420cdc36d6a8c9204b0
SHA512 c790980fd68d9f89e32743bc28846807d5e5947c555f494de47714dec5cbd0c08d81c3260fa463759d1b17a953af3c44ec30b14fb08bf6b29db3837346c9f658

/system_ext/framework/androidx.window.sidecar.jar

MD5 29469324e59dfcc052f24b5af4e7b2c4
SHA1 10c1e17ac6f598037bb51baa07945663645de4eb
SHA256 9195dc6a1c75a841384050240dfc972e48178964993fba6619788625f4b40d1a
SHA512 5e27c2b1431369a248298f2f749136a575005584f9999f2a4c204a0c47adce2e33c8df9f058bdafa1bde1c99e46d175560cedfcddcd8581718ed1d9973c37cc2

Analysis: behavioral5

Detonation Overview

Submitted

2025-03-11 10:11

Reported

2025-03-11 10:17

Platform

android-x86-arm-20240910-en

Max time kernel

1s

Max time network

151s

Command Line

com.yellowbird.waup

Signatures

N/A

Processes

com.yellowbird.waup

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
AU 1.1.1.1:53 digitalassetlinks.googleapis.com udp
GB 142.250.200.42:443 digitalassetlinks.googleapis.com tcp
GB 216.58.201.110:443 tcp
GB 216.58.201.110:443 tcp
GB 216.58.201.110:443 tcp
AU 1.1.1.1:53 android.apis.google.com udp
GB 172.217.169.78:443 android.apis.google.com tcp
AU 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.179.227:80 tcp
GB 142.250.179.228:80 tcp
GB 142.250.179.228:443 tcp
GB 142.250.187.202:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.200.2:443 tcp

Files

N/A