ermac | b242ea3cc79c0291f345792230247c634381dbda2c3fcfdacf1d840fb14e2f99

Analysis

max time kernel
148s
max time network
157s
platform
android-11_x64
resource
android-x64-arm64-20240910-en
resource tags

arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system
submitted
10/03/2025, 22:01

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General

Target

b242ea3cc79c0291f345792230247c634381dbda2c3fcfdacf1d840fb14e2f99.apk
Size

904KB
MD5

5b22e5e8fdd851ebf30dde9e138befd2
SHA1

20212f61bd18477d83e70bcafb7bbd9f5d344ed5
SHA256

b242ea3cc79c0291f345792230247c634381dbda2c3fcfdacf1d840fb14e2f99
SHA512

246ac7c18c1b13243f1713152a8f8a73a322193e4a65815e88c92f2d75a288de59ad1d63596c7a9713fbe0d7fc6c5a00f37064282a0b87c0609f5637bd98b012
SSDEEP

24576:lg/eL5OJymcxx57w4xZS3mts9120MLp45la:lg/NJyh57hxZWnMtv

Score

10^/10

ermac banker collection credential_access defense_evasion discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

http://45.92.1.37

AES_key

Signatures

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

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

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4721	com.rafiwitufiraro.jacazi

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

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.rafiwitufiraro.jacazi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.rafiwitufiraro.jacazi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.rafiwitufiraro.jacazi

Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

collection credential_access impact

Clipboard Data

T1414

Transmitted Data Manipulation

T1641.001

description	ioc	Process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	com.rafiwitufiraro.jacazi

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.rafiwitufiraro.jacazi

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.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.rafiwitufiraro.jacazi

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.rafiwitufiraro.jacazi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.rafiwitufiraro.jacazi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.rafiwitufiraro.jacazi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.rafiwitufiraro.jacazi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.rafiwitufiraro.jacazi

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.rafiwitufiraro.jacazi

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

defense_evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.rafiwitufiraro.jacazi

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.rafiwitufiraro.jacazi

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.rafiwitufiraro.jacazi

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.rafiwitufiraro.jacazi

com.rafiwitufiraro.jacazi
1⤵
- Removes its main activity from the application launcher
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- 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)
- Checks CPU information
- Checks memory information
PID:4721