ermac | 4fb51747475530f32cf31ce7f39de9767af66a3877342b034f440463b4d51158

Analysis

max time kernel
149s
max time network
161s
platform
android_x64
resource
android-x64-arm64-20240624-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system
submitted
06-12-2024 22:00

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General

Target

4fb51747475530f32cf31ce7f39de9767af66a3877342b034f440463b4d51158.apk
Size

3.9MB
MD5

c1c4c11da3883b7c06a03783a82750a7
SHA1

f8fd5d0e62604b33e813da1eebee8632b17aa269
SHA256

4fb51747475530f32cf31ce7f39de9767af66a3877342b034f440463b4d51158
SHA512

23b4de8b1fdcfa2a6a58b168944ce9fed618e8910fccf4a66fb89cdbca14cfba432b99601a450b66f9f2874806b471e7cab6bbbec217fa2dc6b0145928c1e985
SSDEEP

98304:n8ZO8+p1rQL5zPCO2UFXbzCz+/Gd/JdEqFbh89Q/:w3+pVQZEyXbCeGRwqhhcQ/

Score

10^/10

ermac hook banker collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

ermac

http://154.216.19.93

AES_key

Extracted

Family

hook

http://154.216.19.93

AES_key

Signatures

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

Ermac2 payload 1 IoCs

resource	yara_rule
behavioral3/memory/4487-0.dex	family_ermac2

Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
rat trojan infostealer hook
Hook family
hook

Loads dropped Dex/Jar 1 TTPs 1 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.kahveonay.marka/app_orient/wR.json	4487	com.kahveonay.marka

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.kahveonay.marka
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.kahveonay.marka
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.kahveonay.marka

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.kahveonay.marka

Queries information about running processes on the device 1 TTPs 1 IoCs

Application may abuse the framework's APIs to collect information about running processes on the device.

discovery

Process Discovery

T1424

description	ioc	Process
Framework service call	android.app.IActivityManager.getRunningAppProcesses	com.kahveonay.marka

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.kahveonay.marka

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.kahveonay.marka

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.kahveonay.marka
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kahveonay.marka
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kahveonay.marka
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kahveonay.marka
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.kahveonay.marka

Queries information about the current Wi-Fi connection 1 TTPs 1 IoCs

Application may abuse the framework's APIs to collect information about the current Wi-Fi connection.

discovery

System Network Connections Discovery

T1421

description	ioc	Process
Framework service call	android.net.wifi.IWifiManager.getConnectionInfo	com.kahveonay.marka

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.kahveonay.marka

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Schedules tasks to execute at a specified time 1 TTPs 1 IoCs

Application may abuse the framework's APIs to perform task scheduling for initial or recurring execution of malicious code.

execution persistence

Scheduled Task/Job

T1603

description	ioc	Process
Framework service call	android.app.job.IJobScheduler.schedule	com.kahveonay.marka

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.kahveonay.marka

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.kahveonay.marka

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.kahveonay.marka

com.kahveonay.marka
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Queries information about running processes on the device
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries information about the current Wi-Fi connection
- Queries the mobile country code (MCC)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4487

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

Foreground Persistence

T1541

Scheduled Task/Job

T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Process Discovery

T1424

System Information Discovery

T1426

System Network Configuration Discovery

T1422

System Network Connections Discovery

T1421

Lateral Movement

Collection

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Input Injection

T1516

Replay Monitor

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Downloads

/data/data/com.kahveonay.marka/app_orient/oat/wR.json.cur.prof

Filesize
3KB

MD5
e807945e035a7b5215d9e3b9a08d42b0

SHA1
79d6d4a4631356d4fc44dfe66cd3b3b483cd2ba3

SHA256
9ef1b067efdee08a00fdef9fceaddb4c1f2b809ef0002e3d8a481e4ce05202c7

SHA512
06213435b5e4aa703fdc67d81f9b445e3fb9991320343da5ca6ea17257973775fe33cc0209d699caebd151a0ef8f4eae5017a6c8fa70ceac914be7329a86e6bb

Download Submit
/data/data/com.kahveonay.marka/app_orient/wR.json

Filesize
736KB

MD5
8f5252d74c04ece405cdfea896983624

SHA1
64362583c15222ae8bc070e60036b19bfb83ad17

SHA256
49c397e9e62361b35447383e5a7ad5fbb638d5f35b0b1533d5b727112314f99d

SHA512
34d2a2deb8cd8c4778431c15de003b7fabff45062234609f69b06b4505efc067dc0eb5040d567faac829bc0b2101b8848a46d380b09268baeb5116022aa9dff3

Download Submit
/data/data/com.kahveonay.marka/app_orient/wR.json

Filesize
736KB

MD5
bbe3bcc975ba70472c7922654d8eb480

SHA1
fcb503d93adbe0c16b4a4ad04c51413faf84aa77

SHA256
68b230c4df3137c663571bd7f86182d6e9e2f4e6b1fc19243cf56fd07d68ce93

SHA512
2b382568a3e3eeb35f07a736851e3983232a8beb32090af8f4d2f46310d164dfcd701c6b1a27d2d60913ef4b5f15dcfb7e1b620cf02057ee4881b2caa87de458

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
bfab966d3f7ebe22ec96d86220f00f70

SHA1
b93bbf942cff6cee7e2dfed611d7931a3308c6ca

SHA256
835bee50f8c6b14af0f3be7160b4f8e58f3d69aa555414ced57a0de2ad7cf144

SHA512
e2efe55fecd1055393de7c8ea912cb464d1b228793ad2cb9dc2175230ee0db099cec1cbb87ac68d0683e848afda400182431a734c5ea5b05d6cb58d41eb45b8c

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
7e966b967fc1066ead846699f1bbfd40

SHA1
a7480c4cec4747d223513795f02f7f24039c1811

SHA256
56f7a21dc2ff1d7c3450184b7cfd810976e32fc1f3043a89d8e869b09073cef0

SHA512
eec585702cdb492dd91e9498c6896efc9880e4e3758e33c8b9f76ae5167d1ebbac49dc0b8e4eb7448c5a01e5ce474e662b43603f763859a05d3d9cbb68f7f506

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
feddfb7c756640652982a17f59319479

SHA1
fd304b71e364505eff0ebf29d8c1be3f9285cbbe

SHA256
3706526ac7f9421e5bc51ef43cd73c5fcbed084e3de70c2811cd0460ccf4ea93

SHA512
3b3b34ee66f39bb33e0ad64e7cff3da216c87ac191f475b176638e0379ca5e7eabbb6c1e3a29bac738669e98e9fb134d1667749f2269b822a8ff3ba41f9f474e

Download Submit
/data/data/com.kahveonay.marka/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
5bc929c4d216ddd7f0cf03b60124a9d1

SHA1
9c6bbc72b0fea413abde5b3f55efa54f1655ea8c

SHA256
e7e434914893dc399b69e23579c3dc23aefa13ed3fa485c9bd1a79447a75c8a0

SHA512
403d4a522c91ebc6a4e8c9cd1aeaefe01da8ae03aa7b6d068ba1dc3954df97a91c59bff1d8a1de3d7df1ac92073fce5d498f2ae35d1fd020e8076d40dc5bd88c

Download Submit
/data/user/0/com.kahveonay.marka/app_orient/wR.json

Filesize
1.7MB

MD5
c16331a931011722a8a3f4110d016935

SHA1
da0ee471f9918f2f4237b2b8c4b312493e7c208c

SHA256
0ed058b78dfc76d8250582cf41a2fc98c51ec7c7ad378c820e13d8d8c732b74a

SHA512
18d9f1c63a4fce491fe10f4d8c0a735544fd0a6d26585ae7311e2daaebcbd34c8e6694285b7d637213a56a986b3dfc0de3f39986e9eded86b5d4fb47c4fdba5d

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads