Malware Analysis Report

2025-01-19 05:34

Sample ID 240305-1yspmsbg75
Target ac6004de14c68f4bad1bde95184a0c54ead9fe8b40a49736e1cbc8d71e303235.bin
SHA256 ac6004de14c68f4bad1bde95184a0c54ead9fe8b40a49736e1cbc8d71e303235
Tags
collection evasion stealth trojan
score
8/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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

ac6004de14c68f4bad1bde95184a0c54ead9fe8b40a49736e1cbc8d71e303235

Threat Level: Likely malicious

The file ac6004de14c68f4bad1bde95184a0c54ead9fe8b40a49736e1cbc8d71e303235.bin was found to be: Likely malicious.

Malicious Activity Summary

collection evasion stealth trojan

Removes its main activity from the application launcher

Reads the content of SMS inbox messages.

Requests dangerous framework permissions

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-05 22:03

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
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 read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS 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 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

Analysis: behavioral3

Detonation Overview

Submitted

2024-03-05 22:03

Reported

2024-03-05 22:18

Platform

android-x64-arm64-20240221-en

Max time kernel

7s

Max time network

151s

Command Line

com.buttermilks.unquestioned

Signatures

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.buttermilks.unquestioned

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.212.238:443 udp
GB 142.250.187.206:443 tcp
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 ssl.google-analytics.com udp
GB 216.58.212.200:443 ssl.google-analytics.com tcp
RU 5.42.64.66:8000 5.42.64.66 tcp
GB 172.217.169.4:443 tcp
GB 172.217.169.4:443 tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-05 22:03

Reported

2024-03-05 22:17

Platform

android-x86-arm-20240221-en

Max time kernel

17s

Max time network

135s

Command Line

com.buttermilks.unquestioned

Signatures

Removes its main activity from the application launcher

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

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.buttermilks.unquestioned

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.180.10:443 semanticlocation-pa.googleapis.com tcp
RU 5.42.64.66:8000 5.42.64.66 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

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-05 22:03

Reported

2024-03-05 22:18

Platform

android-x64-20240221-en

Max time kernel

7s

Max time network

163s

Command Line

com.buttermilks.unquestioned

Signatures

Reads the content of SMS inbox messages.

collection
Description Indicator Process Target
URI accessed for read content://sms/inbox N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.buttermilks.unquestioned

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 142.250.178.8:443 ssl.google-analytics.com tcp
RU 5.42.64.66:8000 5.42.64.66 tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.36:443 tcp
GB 142.250.200.2:443 tcp
GB 142.250.179.238:443 tcp

Files

N/A