ermac | 1e6e9501cec3b3be2e6fa3788670d5f32036f139c7babdfcd6fce7a9846591f5

Analysis

max time kernel
148s
max time network
154s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
08-10-2024 22:02

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General

Target

1e6e9501cec3b3be2e6fa3788670d5f32036f139c7babdfcd6fce7a9846591f5.apk
Size

1.8MB
MD5

bfe8f5179d5d6e5b358c8c33dfd70468
SHA1

44e426dcd27ac278be28ce61686a1744c27f35a6
SHA256

1e6e9501cec3b3be2e6fa3788670d5f32036f139c7babdfcd6fce7a9846591f5
SHA512

61cc06746086c1152f5fe3e9640217f31679fc638c1e97160ecb23bf3e4c79450d4b6c2cf9f19fe839290a4ab0b7c3c7ad4a3d7bd58fdb2fc75bc5d77ea829a5
SSDEEP

49152:2g/mOTZJ1mfbmbTElzxrq/sTiBSTzdW1i:FNJ4MElI/sTY+W1i

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

http://154.216.18.241:3434

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
4310	com.ducicihinayo.juheheva

Makes use of the framework's Accessibility service 4 TTPs 2 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.ducicihinayo.juheheva
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.ducicihinayo.juheheva

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001
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.ducicihinayo.juheheva

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.ducicihinayo.juheheva

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.ducicihinayo.juheheva
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ducicihinayo.juheheva
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ducicihinayo.juheheva
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ducicihinayo.juheheva
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ducicihinayo.juheheva

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.ducicihinayo.juheheva

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.ducicihinayo.juheheva

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.ducicihinayo.juheheva

com.ducicihinayo.juheheva
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:4310