Malware Analysis Report

2024-10-19 13:00

Sample ID 240223-1xe26aaf6v
Target d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388.bin
SHA256 d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388
Tags
ermac banker collection discovery evasion infostealer stealth trojan
score
10/10

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
10/10

SHA256

d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388

Threat Level: Known bad

The file d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388.bin was found to be: Known bad.

Malicious Activity Summary

ermac banker collection discovery evasion infostealer stealth trojan

Ermac

Ermac2 payload

Ermac family

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

Removes its main activity from the application launcher

Makes use of the framework's Accessibility service

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Requests dangerous framework permissions

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

Requests disabling of battery optimizations (often used to enable hiding in the background).

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-23 22:01

Signatures

Ermac family

ermac

Ermac2 payload

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

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to request installing packages. android.permission.REQUEST_INSTALL_PACKAGES 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
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 an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows access to the list of accounts in the Accounts Service. android.permission.GET_ACCOUNTS 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
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A

Analysis: behavioral3

Detonation Overview

Submitted

2024-02-23 22:01

Reported

2024-02-23 22:05

Platform

android-x64-arm64-20240221-en

Max time kernel

151s

Max time network

160s

Command Line

com.bekebayurapo.huno

Signatures

Ermac

banker trojan infostealer ermac

Makes use of the framework's Accessibility service

collection evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText 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
Description Indicator Process Target
Framework service call android.content.pm.IPackageManager.getInstalledApplications N/A N/A

Removes its main activity from the application launcher

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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

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

discovery

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS 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.bekebayurapo.huno

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.74:443 udp
GB 216.58.213.14:443 udp
GB 142.250.187.202:443 tcp
GB 142.250.187.202:443 tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.16.232:443 ssl.google-analytics.com tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
GB 172.217.169.4:443 tcp
GB 172.217.169.4:443 tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-23 22:01

Reported

2024-02-23 22:05

Platform

android-x86-arm-20240221-en

Max time kernel

150s

Max time network

158s

Command Line

com.bekebayurapo.huno

Signatures

Ermac

banker trojan infostealer ermac

Makes use of the framework's Accessibility service

collection evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText 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
Description Indicator Process Target
Framework service call android.content.pm.IPackageManager.getInstalledApplications N/A N/A

Removes its main activity from the application launcher

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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Requests disabling of battery optimizations (often used to enable hiding in the background).

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS 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.bekebayurapo.huno

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
FR 4.178.96.222:3434 4.178.96.222 tcp
GB 216.58.201.110:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
GB 142.250.200.14:443 android.apis.google.com tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-23 22:01

Reported

2024-02-23 22:05

Platform

android-x64-20240221-en

Max time kernel

41s

Max time network

154s

Command Line

com.bekebayurapo.huno

Signatures

Ermac

banker trojan infostealer ermac

Makes use of the framework's Accessibility service

collection evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId 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
Description Indicator Process Target
Framework service call android.content.pm.IPackageManager.getInstalledApplications N/A N/A

Removes its main activity from the application launcher

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

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

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

discovery

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.bekebayurapo.huno

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 142.250.187.232:443 ssl.google-analytics.com tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.169.78:443 android.apis.google.com tcp
GB 216.58.201.98:443 tcp
GB 172.217.16.238:443 tcp
GB 216.58.212.195:443 tcp
GB 172.217.169.74:443 tcp
GB 216.58.212.195:443 tcp
GB 216.58.212.195:443 tcp
GB 216.58.212.228:443 tcp
GB 216.58.212.228:443 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
FR 4.178.96.222:3434 4.178.96.222 tcp
US 1.1.1.1:53 g.tenor.com udp
GB 172.217.169.10:443 g.tenor.com tcp

Files

N/A