Malware Analysis Report

2024-07-28 12:09

Sample ID 240612-wbmgwsxekp
Target a192ce6a96c78c37ad20caf4e375cfbd_JaffaCakes118
SHA256 f390e5620b4089b4d1f22b6b2f0b462516593159d4bbfbd9cf478811da6e3092
Tags
banker discovery evasion persistence collection credential_access impact
score
7/10

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
7/10

SHA256

f390e5620b4089b4d1f22b6b2f0b462516593159d4bbfbd9cf478811da6e3092

Threat Level: Shows suspicious behavior

The file a192ce6a96c78c37ad20caf4e375cfbd_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

banker discovery evasion persistence collection credential_access impact

Checks Android system properties for emulator presence.

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

Obtains sensitive information copied to the device clipboard

Requests dangerous framework permissions

Queries information about active data network

Queries information about the current Wi-Fi connection

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

Queries the mobile country code (MCC)

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

Checks memory information

Checks CPU information

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-12 17:44

Signatures

Requests dangerous framework permissions

Description Indicator Process Target
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 17:44

Reported

2024-06-12 17:48

Platform

android-x86-arm-20240611.1-en

Max time kernel

26s

Max time network

139s

Command Line

com.isnowstudio.cachecleaner

Signatures

Checks Android system properties for emulator presence.

evasion
Description Indicator Process Target
Accessed system property key: ro.product.model 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 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

com.isnowstudio.cachecleaner

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
N/A 224.0.0.251:5353 udp
GB 142.250.187.227:80 www.gstatic.com tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.238:443 android.apis.google.com tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 17:44

Reported

2024-06-12 17:48

Platform

android-x64-20240611.1-en

Max time kernel

25s

Max time network

147s

Command Line

com.isnowstudio.cachecleaner

Signatures

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 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 active data network

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

Queries information about the current Wi-Fi connection

discovery
Description Indicator Process Target
Framework service call android.net.wifi.IWifiManager.getConnectionInfo 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 unique device ID (IMEI, MEID, IMSI)

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

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

com.isnowstudio.cachecleaner

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.42:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.178.8:443 ssl.google-analytics.com tcp
GB 216.58.201.99:80 www.gstatic.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
GB 172.217.169.42:443 tcp
GB 142.250.187.206:443 tcp
GB 142.250.187.194:443 tcp
GB 172.217.169.42:443 tcp
GB 172.217.16.228:443 tcp
GB 172.217.16.228:443 tcp
GB 142.250.179.238:443 tcp

Files

N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-06-12 17:44

Reported

2024-06-12 17:48

Platform

android-x64-arm64-20240611.1-en

Max time kernel

71s

Max time network

132s

Command Line

com.isnowstudio.cachecleaner

Signatures

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 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 active data network

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

Queries information about the current Wi-Fi connection

discovery
Description Indicator Process Target
Framework service call android.net.wifi.IWifiManager.getConnectionInfo 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

com.isnowstudio.cachecleaner

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.3:80 www.gstatic.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.178.8:443 ssl.google-analytics.com tcp
GB 172.217.16.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.46:443 android.apis.google.com tcp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp

Files

N/A