Malware Analysis Report

2024-09-09 17:09

Sample ID 240614-dtkrxaxbqp
Target a7d28f24ea1248438c34c999414f254c_JaffaCakes118
SHA256 d94e1f614f1d0dbdab1232e5b78cc798271067aa533ec7ad2574aef48b40825f
Tags
banker discovery 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 Overview

score
8/10

SHA256

d94e1f614f1d0dbdab1232e5b78cc798271067aa533ec7ad2574aef48b40825f

Threat Level: Likely malicious

The file a7d28f24ea1248438c34c999414f254c_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

banker discovery evasion persistence

Checks if the Android device is rooted.

Queries information about running processes on the device

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Queries information about active data network

Queries the mobile country code (MCC)

Requests dangerous framework permissions

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

Checks CPU information

Checks memory information

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-14 03:18

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 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
Required to be able to access the camera device. android.permission.CAMERA 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 record audio. android.permission.RECORD_AUDIO N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 03:18

Reported

2024-06-14 03:21

Platform

android-x86-arm-20240611.1-en

Max time kernel

25s

Max time network

130s

Command Line

cn.nyxdt

Signatures

Checks if the Android device is rooted.

evasion
Description Indicator Process Target
N/A /system/xbin/su N/A N/A
N/A /system/bin/su 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 information about running processes on the device

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

Queries information about active data network

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

Checks CPU information

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

Checks memory information

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

Processes

cn.nyxdt

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 a.apicloud.com udp
CN 47.93.90.46:443 a.apicloud.com tcp
US 1.1.1.1:53 www.nyxdt.cn udp
US 38.33.100.133:80 www.nyxdt.cn tcp
US 38.33.100.133:80 www.nyxdt.cn tcp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.169.46:443 android.apis.google.com tcp

Files

N/A