ermac | bdfe19b2679bac5d6e4b94267eb77c54f1ff9a723d52e5fbbab98f1941fa85c3

Analysis

max time kernel
14s
max time network
132s
platform
android_x64
resource
android-x64-arm64-20240514-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240514-enlocale:en-usos:android-11-x64system
submitted
19-05-2024 22:04

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General

Target

bdfe19b2679bac5d6e4b94267eb77c54f1ff9a723d52e5fbbab98f1941fa85c3.apk
Size

818KB
MD5

11ad2c8a151cf2f25ace7cc07ce95e0e
SHA1

61060d76fa66ae42689b9d9d9dba17e5bf372b77
SHA256

bdfe19b2679bac5d6e4b94267eb77c54f1ff9a723d52e5fbbab98f1941fa85c3
SHA512

d0bb011b225dd9621d28ebacb0c98269237848eb4c296de371eccc500caf5660b8a677da58efd3aa31ac5a7ba95c25b89c2b1a65ed355ca52f1ef35f8e451302
SSDEEP

12288:B9+izVk9fuA4dz2CCktVMOfoOVh1ei4f3xvYwnQ6jsD9ocd8W:Jjdz2CCCp/1v4f5Y1UsD9oi

Score

10^/10

ermac banker collection credential_access discovery evasion impact infostealer persistence trojan

Malware Config

Extracted

Family

ermac

http://51.103.213.218:3434

AES_key

Signatures

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

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.dogatarims.apk
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.dogatarims.apk
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.dogatarims.apk

Prevents application removal 1 TTPs 1 IoCs

Application may abuse the framework's APIs to prevent removal.

evasion

Prevent Application Removal

T1629.001

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.dogatarims.apk

Checks CPU information 2 TTPs 1 IoCs

Checks CPU information which indicate if the system is an emulator.

evasion discovery

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.dogatarims.apk

Checks memory information 2 TTPs 1 IoCs

Checks memory information which indicate if the system is an emulator.

evasion discovery

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.dogatarims.apk

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.dogatarims.apk

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.dogatarims.apk

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.dogatarims.apk

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.dogatarims.apk

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.dogatarims.apk

com.dogatarims.apk
1⤵
- Makes use of the framework's Accessibility service
- Prevents application removal
- Checks CPU information
- Checks memory information
- Makes use of the framework's foreground persistence service
- Obtains sensitive information copied to the device clipboard
- Queries the mobile country code (MCC)
- Acquires the wake lock
- Uses Crypto APIs (Might try to encrypt user data)
PID:4610