ermac | edb8acd104ad2427a79922d07f9419580fd9aeb746f940422851b431ff61b48d

Analysis

max time kernel
25s
max time network
158s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
04/01/2025, 22:00

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General

Target

edb8acd104ad2427a79922d07f9419580fd9aeb746f940422851b431ff61b48d.apk
Size

3.3MB
MD5

2a884cd0c07e28a58aef5abe799f34d9
SHA1

966488faebce0d98b9be6d8705577a894fdcacc8
SHA256

edb8acd104ad2427a79922d07f9419580fd9aeb746f940422851b431ff61b48d
SHA512

f0ad86beb094c1ad938efeba180cc145bc8f30d82169579850fa461985d9e49606d6dc4148600224796f63eecc9dc4bca1084168fd73dd9776ee490538e23df4
SSDEEP

98304:H2UARrIK9eUk8spO1w93yRunnkC9tyzgZLaQYEy:ARrzdrspO1cMukCeUxfYEy

Score

10^/10

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

Malware Config

Extracted

Family

ermac

AES_key

Extracted

Family

hook

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
behavioral2/memory/4930-0.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.jekefanesuli.vako/app_engine/DDF.json	4930	com.jekefanesuli.vako

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.jekefanesuli.vako
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.jekefanesuli.vako
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

persistence

Broadcast Receivers

T1624.001

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

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.jekefanesuli.vako

com.jekefanesuli.vako
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
- Queries information about the current Wi-Fi connection
- Queries the mobile country code (MCC)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4930

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Scheduled Task/Job

T1603

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

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.jekefanesuli.vako/app_engine/DDF.json

Filesize
665KB

MD5
22e240b36c2b8848165d8caf97262510

SHA1
daaed9d2f94539cc5e9770484b95df68fdd6195e

SHA256
ef216fd44a958ee9803ea76261f50ff299a1bdaac0d07d8834a0cc635d733e41

SHA512
d8839872c2a953cf157a363df9aea827415a20aa630d2adb8dd096b70b04c114c4278c7002336d6948c20c6a5dad6eada14788df18f5fa614d4bc4b104febe3f

Download Submit
/data/data/com.jekefanesuli.vako/app_engine/DDF.json

Filesize
665KB

MD5
1ddbd56355948c117b65d8347eab5af9

SHA1
3e4ad916b8dbac8c5af0f75d919d8866be80f64e

SHA256
96ccc3911f6d7ee4f8efa2f84506f7b5e812cd1fa0cd0ee2b980d5bba7f9902b

SHA512
a433a178bd7e0077d8f37af0bd497026a84de7ab78e7f929c7a13a8e722311d33e78f3ebbdf31cfa9945a64d8dad35378d5a2e6b682c932ea102802ae929bd89

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
e6b19878ceaa4dd54129520714ed3615

SHA1
4229b13a9d4e35dae1422627dcf8c4f8f5122b2a

SHA256
49a8e725e34866d9abe2de31cb7aec11ec6cb5da3d07e2acfe463451220b7890

SHA512
3b323a78d325e8d507eae54564e93e8fb02395ce876569102c002ddbccadb00449c2f068856dacb72d14fe126382e521fd4d9cc6b39ea75eb1a054c26fe0a72e

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
7f6fbbc4eaf4d405e03de9ce1d153314

SHA1
bb08beb1f23901ede0a4a5df598bb90e85fb17d1

SHA256
79252007c5ad1b1ee6f02c737dad6cf865dca57797f86ae1644396bff55b24d1

SHA512
ab4afb63ba613d88d9b680ef869b66276dfe4730cb93260dd0aa4a05343b0bb0fb0b2f496f45ec0cd247766f4632a41b743c8ba1f93e2fb2711599c4531d3702

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
9a12cdb2a95ab593ec5c0a486cd00e54

SHA1
453dcaaf0de1fa2d69409dd9ac61c2363a708655

SHA256
bca7416fb30c4deb9260aaaab3df11942b9ae1211f278ba0f23934ad309db379

SHA512
6816f583fc354905d1b0d11da68e3db64c150baa8b8cb3b3054b64b18019305d4137e4c7054aa82aa931ab5b882e5bfa220f44779c57c9140df4ac6e11c196e3

Download Submit
/data/data/com.jekefanesuli.vako/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
583a5b2840b16ec4a627d651981ca806

SHA1
a2c86403cb31066724debb1bb962f082724adb84

SHA256
83add154e224112ca03d5b07dadd4655be850a3a088a9e095b58d453e5e83e41

SHA512
6e0911b274903acf69caf6098dee8a289f89950c4f7e85d551fe903aa769000df262377e0de8d5e5f9714bbdd328afa363fd74ba6460ba40d7b649d5e835cedf

Download Submit
/data/user/0/com.jekefanesuli.vako/app_engine/DDF.json

Filesize
1.5MB

MD5
acf5c16e023eb0ab3ced9aeb67a8cd4d

SHA1
f3283a9282c22e8b6a9286a6412847dcea76eaaa

SHA256
b75ea8c86465ddfce7606532f3bb0f682ac8c620ec0372b792af3e4a5df413ff

SHA512
83ab6802bdc378ab665cac7ec61bcd5eb4e84e24a2bcb4d3829c39ecd9784e277e31f52b928177c3e2de59e9e7ad5a37602864f53e464a7186bdf2927baa628e

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads