ermac | a68d64bc9fdaef1dce474da7b9cc59528ef03db08649f22af29925dc26bfdbcb

Analysis

max time kernel
177s
max time network
185s
platform
android_x64
resource
android-x64-arm64-20240611.1-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240611.1-enlocale:en-usos:android-11-x64system
submitted
21-06-2024 22:25

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General

Target

a68d64bc9fdaef1dce474da7b9cc59528ef03db08649f22af29925dc26bfdbcb.apk
Size

989KB
MD5

638d5a9b69bb0efedecba98f9279f6b6
SHA1

027bd8222d27fc9a24bd79d79eacb69da80e730e
SHA256

a68d64bc9fdaef1dce474da7b9cc59528ef03db08649f22af29925dc26bfdbcb
SHA512

b72eb0a6b24776717634d0780739169d02066eb331b6ca7ec5d35bd42dca0d04f97639c56791ae9a1f721a9cb4137f595173f6192d2c81c79a0e5a167ff7cf70
SSDEEP

24576:mIAE+y4DqWXdRSDRFtT/oA6zSwSESg/AXYJ:mrEZ4DqGRMRLoABRESg/j

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

http://sollyzo.duckdns.org

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
4539	com.tefidozefite.bipozeza

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.findAccessibilityNodeInfoByAccessibilityId	com.tefidozefite.bipozeza
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.tefidozefite.bipozeza
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tefidozefite.bipozeza

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.tefidozefite.bipozeza

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.tefidozefite.bipozeza

Performs UI accessibility actions on behalf of the user 1 TTPs 10 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.tefidozefite.bipozeza

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.tefidozefite.bipozeza

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.tefidozefite.bipozeza

Requests enabling of the accessibility settings. 1 IoCs

description	ioc	Process
Intent action	android.settings.ACCESSIBILITY_SETTINGS	com.tefidozefite.bipozeza

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.tefidozefite.bipozeza

com.tefidozefite.bipozeza
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).
- Requests enabling of the accessibility settings.
- Uses Crypto APIs (Might try to encrypt user data)
PID:4539