ermac | d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388

Analysis

max time kernel
149s
max time network
156s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
29-09-2024 10:53

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General

Target

d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388.apk
Size

987KB
MD5

13a6384a962b4c5d3d6c54c4b67e3793
SHA1

5911072aa9c86b516749fb2896e72b3fac390a40
SHA256

d86dd073759b59ad31d85513b493d9981f47f604ee29be26fc999cf00c94c388
SHA512

5dd3b8dd734c090d8aad2fcc9ca0c3997e4b983f05f0e2537ef16f21729a4901f6541c9a3c71ba1ab101a168dbc7f53796059166d3cc520fea2e5bb6d3abc542
SSDEEP

24576:lJDHe3O/t02zC29hbHdoptBEhtcjSEBQg/kVQ:7D+et0ZkhHiEvqQg/9

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

http://4.178.96.222:3434

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
4974	com.bekebayurapo.huno

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.bekebayurapo.huno
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.bekebayurapo.huno
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.bekebayurapo.huno

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.bekebayurapo.huno

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.bekebayurapo.huno

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.bekebayurapo.huno
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bekebayurapo.huno
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bekebayurapo.huno
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bekebayurapo.huno
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.bekebayurapo.huno

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.bekebayurapo.huno

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

System Network Configuration Discovery
T1422

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.bekebayurapo.huno

com.bekebayurapo.huno
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)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4974