ermac | b1f586ec352d37e42a33dc7fc7f260c2e5d66dbc24cc70994b852cc798f3b700

Analysis

max time kernel
179s
max time network
180s
platform
android_x86
resource
android-x86-arm-20240611.1-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240611.1-enlocale:en-usos:android-9-x86system
submitted
12-06-2024 16:00

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General

Target

b1f586ec352d37e42a33dc7fc7f260c2e5d66dbc24cc70994b852cc798f3b700.apk
Size

2.4MB
MD5

34f34a9653a62003d0d3999f1deb31c6
SHA1

2db55777147cecd8cd3a9a0c5712ff5767c43de7
SHA256

b1f586ec352d37e42a33dc7fc7f260c2e5d66dbc24cc70994b852cc798f3b700
SHA512

f891d3c4b0870fa6a1f8399944d4fbef16f1591acf48bf9cfbfd6b6e0b85a6eb10450345f6c4af08b6800345be9708710d5a8e484fef339f763cfeae2eef1b44
SSDEEP

49152:7zM4MQcpPfm2E/rvuwzia269+c7LftnGok5H6obG6prg/kP:7tgpPCrmwziaj+SLfNGoGH6oG6FP

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

https://www.virustotal.com

AES_key

Signatures

Ermac
An Android banking trojan first seen in July 2021.
banker trojan infostealer ermac

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4197	com.kememaboyupeca.fudoxo

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection evasion credential_access

Input Injection

T1516

Screen Capture

T1513

Keylogging

T1417.001

GUI Input Capture

T1417.002

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.kememaboyupeca.fudoxo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.kememaboyupeca.fudoxo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.kememaboyupeca.fudoxo

Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Acquires the wake lock 1 IoCs

description	ioc	Process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.kememaboyupeca.fudoxo

Makes use of the framework's foreground persistence service 1 TTPs 1 IoCs

Application may abuse the framework's foreground service to continue running in the foreground.

evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.kememaboyupeca.fudoxo

Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kememaboyupeca.fudoxo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kememaboyupeca.fudoxo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kememaboyupeca.fudoxo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kememaboyupeca.fudoxo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kememaboyupeca.fudoxo

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

discovery

System Network Configuration Discovery

T1422

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.kememaboyupeca.fudoxo

Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
discovery

System Network Configuration Discovery
T1422

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.kememaboyupeca.fudoxo

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

impact

Data Encrypted for Impact

T1471

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.kememaboyupeca.fudoxo

com.kememaboyupeca.fudoxo
1⤵
- Removes its main activity from the application launcher
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data)
PID:4197