ermac | 45bfd8f41285445153e72968de43bdc424f3aa89a8dbed8e4b7f65035fe9a508

Analysis

max time kernel
145s
max time network
147s
platform
android_x64
resource
android-x64-20240624-en
submitted
13/12/2024, 22:00

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General

Target

45bfd8f41285445153e72968de43bdc424f3aa89a8dbed8e4b7f65035fe9a508.apk
Size

3.3MB
MD5

def38b9daee0654daad2a5b04bcf70eb
SHA1

09df3907111fed6bfa1ca4d2b1e19a98c8a1e85b
SHA256

45bfd8f41285445153e72968de43bdc424f3aa89a8dbed8e4b7f65035fe9a508
SHA512

52b691e6f952d2f181baff8907f24efa7c4d33e6c5b51a20b7743d7f0a2b5d3dd4c7539ce4c63a80d08ce7af3cc31e0ce6c0b149e0f6b5ddd8edf39de1f8c454
SSDEEP

49152:Yg1Zs3sxmibDRMQiZdQpwT0WiKMoaEJtiPDcLmEc+UUzq0sdkEjIPJicUHqqS3rZ:Yg1ZcriJxMqpkrRecLbKj8JiBqRqwrVJ

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://mishao11jfac.pro

http://vamir99ffkkd.info

http://prebadejf41vv.live

http://hopfvba01fv2.pro

http://bibika821ga.info

http://no4rekivax.pro

AES_key

Extracted

Family

hook

http://mishao11jfac.pro

http://vamir99ffkkd.info

http://prebadejf41vv.live

http://hopfvba01fv2.pro

http://bibika821ga.info

http://no4rekivax.pro

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/5095-0.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.nanapusomodo.toru/app_push/WteGMkQ.json	5095	com.nanapusomodo.toru

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.nanapusomodo.toru
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.nanapusomodo.toru
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	api.ipify.org
10	api.ipify.org

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.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.nanapusomodo.toru

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.nanapusomodo.toru
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nanapusomodo.toru
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nanapusomodo.toru
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nanapusomodo.toru
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

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.nanapusomodo.toru

com.nanapusomodo.toru
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- 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)
- 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:5095

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

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

System Information Discovery

T1426

System Network Configuration Discovery

T1422

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

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Downloads

/data/data/com.nanapusomodo.toru/app_push/WteGMkQ.json

Filesize
699KB

MD5
496cc07a2c52d7d090737ba0a0881a7b

SHA1
7dcb09e067ca223a673c74b7b9e684d645c794da

SHA256
4b99a6645dde8ca3ec95e3fd49bc65027cdcd30f9222cf833c7d3f8c480d40da

SHA512
6a9fe7617f87a3c31db1dd1ee2cda1432b1f64a9d2420acceaf6e9fc0779867e72332e25f0a042777c520dd521168a61cdae70c710e4f4f21eebfc55a80ec894

Download Submit
/data/data/com.nanapusomodo.toru/app_push/WteGMkQ.json

Filesize
699KB

MD5
1f453de88571066b50c61c004eb0cf3b

SHA1
2f5225a9113d9efa7b5d9d5b953b10d12a611aae

SHA256
1cbaa999d2077aa744ee2e3c73f6d35be965b67baecbd41510ea6ae475cfda34

SHA512
09b8f7cd96113b82e3306bc3b82ca0db687c0225e543962b0741f0605b3d3fb4bf946ab44427e93cc023a317abe280f6672abaca66dca574e861b673ab51ae8e

Download Submit
/data/data/com.nanapusomodo.toru/app_push/oat/WteGMkQ.json.cur.prof

Filesize
2KB

MD5
4b7a9aaad3295b72e8014cbf4478ffa3

SHA1
c12582eb236dfe55c3a1b857107919acf112921c

SHA256
1e5231d599bea34a06883744b0b7c437744c147686e2c8128ed775e7e904099b

SHA512
6c7ecf747a982c1c61e526f65b254a4cddcb4e230403a38c869f23a1ab9dbf3c777120c2c07c827ee8751226225d735d90e9debe058545b98fa43c5bd4fc0a1e

Download Submit
/data/data/com.nanapusomodo.toru/app_push/oat/WteGMkQ.json.cur.prof

Filesize
2KB

MD5
9ab058d4d948e9adf9028e907c2195e8

SHA1
1202a7367498cb76e5a374741ab7469897f85dd2

SHA256
c26343c747301bd0381e0f21c1f8ce66e8f54d6a3547c13acc5c6e1cd8faddbf

SHA512
037f30f97bf002d88afcb501b77e798cf31071977b43e9ace85e9f5ae0832c063bf431c1a17fc7f1d73ae579f3e12b4ee27abc11e6a09a3781daf8c2dee2db7d

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
e96e414b85b8f6cc9a822ade43ab0356

SHA1
567265c1504ab3e189e6b52f728fe1a5dc8b2c21

SHA256
12a72f4bef907b06db368fa56423105d84f87c569a3a2f7fd004f5b2d7c8a39d

SHA512
6d8328c9c31997913637ea2f65dd09a8e32fa9baf524124709fdd54f4559735493882f7ca1f710813655084996c8fa9e3bcb03791e9a5172a9945af9888d33d5

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
69b513f3b4639c149af4a023bcf76834

SHA1
0608322de640aab465b1f1d77d423060979e0eb6

SHA256
aca3dd4868cc22cab00512ac754aaf95dc7e62d8f56dbb9d0e8d4778122edc91

SHA512
e95909d22671b3a3a0081abcf6f3cd517f606df5fe9c7ff06ccd4816f8ff245a095eca7812c8fdeffef91abe6ae2e6f6c06d0f9f661e89418dcb7bbf6d12681c

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
bfbbee7ec54cf289044803cccd5cf6e3

SHA1
ae2fbea959fdf038a1a15c30cf576be7d622c7d1

SHA256
3ff23f6ca64f839cbb000304af652fdf7788f9dc1b7e2682daf5d17b1cc27f6c

SHA512
613904186510f50ca858204bd996d4ad80c764637e975304d3a0bbf74ae14b92389e7c8c2b4c78cdfcc59b31a1079f01af0da1051bdf4566d68291a25c48f743

Download Submit
/data/data/com.nanapusomodo.toru/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
735d256bcc3545f7882f707301ede104

SHA1
032137b535a15bd4280c6eecafb7f508b3c5f879

SHA256
68413efae3c21fce889ba9a3604ec0d3fd12901e2cb7f9c7ea28954cf958a629

SHA512
67f0a400b7ff0045b3c1ec362d7276dd55e0d2410def0a4ddc70cf698bd619856ecfb64c56d8f6b19980f84af442d7c2cbb6dde6ae3217224ccc1147d8bc056a

Download Submit
/data/user/0/com.nanapusomodo.toru/app_push/WteGMkQ.json

Filesize
1.5MB

MD5
5ec0eb4b7e575a5e9db73e1af76e8f50

SHA1
038c4b14ee1807455cd6c23afaeb97a84f793c71

SHA256
16c218bcd5cd1e7c04ec173a1450ad6281cfd6259fbb5609dfde323a3757c913

SHA512
41d7a06369cb52eda03e1d37aea6f5bd038fce8fb73fe7529340d8aa3bdb4931f07610521dd3529e5f9f7756fde0f63d167793f90b591cbb977b15086063e938

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads