ermac | fe444d96590709143379d5c1f910ecf3877e49744115a181539127df0448b0a9

Analysis

max time kernel
179s
max time network
188s
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
12-06-2024 15:49

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General

Target

fe444d96590709143379d5c1f910ecf3877e49744115a181539127df0448b0a9.apk
Size

2.4MB
MD5

112e985ad9fa066ada1cb96f8da2785e
SHA1

050992b85cfb98b6dedf321c5b18c731f08cdda9
SHA256

fe444d96590709143379d5c1f910ecf3877e49744115a181539127df0448b0a9
SHA512

f7580ac186490afa31e026ac330b2471adc6e4737e772a46d9d724e1d30f9d65f1e7e6bf7230bf5f5240cb78b1428640ecfdd4ee8b0bc37b6a82c1b74249727b
SSDEEP

49152:io6HzoaXHQbcRAInmbxQkT0CMC0jayoHbzRQCrDZiAtFGPYGxU64Kx+/dBJg/Uy:2zoaXiuAInMxqg0Sz7DZnGZV4l/d3y

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence stealth trojan

Malware Config

Extracted

Family

ermac

https://www.google.com/maps

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
4675	com.fedetabesega.bowe

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.fedetabesega.bowe
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.fedetabesega.bowe
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.fedetabesega.bowe

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.fedetabesega.bowe

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.fedetabesega.bowe

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.fedetabesega.bowe
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fedetabesega.bowe
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fedetabesega.bowe
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fedetabesega.bowe
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.fedetabesega.bowe

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.fedetabesega.bowe

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

System Network Configuration Discovery
T1422
Reads information about phone network operator. 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.fedetabesega.bowe

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.fedetabesega.bowe

com.fedetabesega.bowe
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:4675