ermac | c845cd42c2f1dda46116d78957822e7a67cc7a70863c18570a8c1308be62aaea

Analysis

max time kernel
173s
max time network
183s
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
20-06-2024 22:00

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General

Target

c845cd42c2f1dda46116d78957822e7a67cc7a70863c18570a8c1308be62aaea.apk
Size

927KB
MD5

35f5208d6283a1bb8dc3bd49f2444f47
SHA1

81ea7c9c4902eb3fd4154e51190e5505b9ba6523
SHA256

c845cd42c2f1dda46116d78957822e7a67cc7a70863c18570a8c1308be62aaea
SHA512

f7cc3435870beddbb3e9ed5bf328a85095bab7812bf15e99de4080b8fbf5f2878333b069a900680c4c0ebdf99da2fbb36d0ff2b4185468b40a66cb74401e2535
SSDEEP

12288:tnmrYRveCxPvqjm8b3dBnLCi2SLjCTemB7gxhsBLDBLBgxhVp3d6xCtfPjGgA4qp:tXRWAPvqNvLrgtXez6ajGg/JoR

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

http://jeffhard.duckdns.org:8080

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
4677	com.bobuhomifuvicu.fegesi

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.findAccessibilityNodeInfosByViewId	com.bobuhomifuvicu.fegesi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.bobuhomifuvicu.fegesi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bobuhomifuvicu.fegesi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bobuhomifuvicu.fegesi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bobuhomifuvicu.fegesi
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

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.bobuhomifuvicu.fegesi

com.bobuhomifuvicu.fegesi
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:4677