ermac | f2d01c45e252f781a56a8ab5b89ebfa4db6c90db8a95202d831d404cc7f2761a

Analysis

max time kernel
138s
max time network
156s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
12-11-2024 22:11

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General

Target

f2d01c45e252f781a56a8ab5b89ebfa4db6c90db8a95202d831d404cc7f2761a.apk
Size

3.6MB
MD5

e35319056a81b17979da132bd2294a73
SHA1

ad6e3270762af7be035f53781dca0819a72906db
SHA256

f2d01c45e252f781a56a8ab5b89ebfa4db6c90db8a95202d831d404cc7f2761a
SHA512

c10537354ab456afab51021778e1b5202244b625a7e772a4f4f031f84a88e2662288912ba430e74388fd02cf6cea80c2d28ad15df5a724e9994f5b1ba4d021fe
SSDEEP

98304:2lQCQGxYYqruDRxww5Thkp4tLXRc4OTe67G0ihOakEUg90o1u5l/ghcfHFy9eJx:2b06Ty4ZdOTe67RihOaZ0+i

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://94.141.120.34

AES_key

Extracted

Family

hook

http://94.141.120.34

AES_key

Signatures

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

Ermac2 payload 2 IoCs

resource	yara_rule
behavioral1/memory/4318-0.dex	family_ermac2
behavioral1/memory/4292-0.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 2 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json	4318	/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/oat/x86/Gjmfs.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json	4292	com.dehodigipuhixoyi.mafuko

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.findAccessibilityNodeInfosByViewId	com.dehodigipuhixoyi.mafuko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.dehodigipuhixoyi.mafuko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.dehodigipuhixoyi.mafuko

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.dehodigipuhixoyi.mafuko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.dehodigipuhixoyi.mafuko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.dehodigipuhixoyi.mafuko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

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.dehodigipuhixoyi.mafuko

com.dehodigipuhixoyi.mafuko
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- 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)
- 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:4292
- /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/oat/x86/Gjmfs.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4318

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

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Process Discovery

T1424

Software Discovery

T1418

Security Software Discovery

T1418.001

System Information Discovery

T1426

System Network Configuration Discovery

T1422

System Network Connections Discovery

T1421

Lateral Movement

Collection

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Input Injection

T1516

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Downloads

/data/data/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json

Filesize
736KB

MD5
16c5f0664114551f640c70293e81d20f

SHA1
d2383720a44f0fac82ebbcbb33ba45fb9f76a8e8

SHA256
a90abed94c83f245e9d9271faa83ebd758e3d2fcde83e864904aba041d7615e5

SHA512
f1603be81d59bcfdc3f767c52a0688f3896ee816a7a3fd1a43f887041f8033eafe3ad2272e08b910b7b92810bac089eb99d51da110aea718aad3b5e9d11fa5d3

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json

Filesize
736KB

MD5
fbe8ea54b22b070e42b446aa11928857

SHA1
0b687ea5b527e719ca8b1b5fe206602f5ccd2415

SHA256
d0309c99dced1a6710c4f6d48fff40744cf193042b673b4b74753b4af7c83f2c

SHA512
a8c43cea589f5610e913d4d1335e22c7c05c0a748d9e63403cc0b1d04a22f8aaf739ae12c8dc185508d4385171f5665de9c1f71ee634010caca8ec2da1fb1adb

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/app_obscure/oat/Gjmfs.json.cur.prof

Filesize
2KB

MD5
782626f90e58298520289b68f579c469

SHA1
6028ee56785d1c7d0453fefea7dac78a7f0647b9

SHA256
a9c3efab22ac02bcdb67e04b9db1826b5d6b893f22d7040e0d6f6002512ecb53

SHA512
31b7806d245d51075a38f9a54965e7ea7fe1d31119b7dbabd974dbde4027173bc0b72f5f60e3c0517b9006573db452dee980f699de5d17a2a51162766c003886

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
47871d583c27664fc7b94497c851e0fb

SHA1
82c616319915ffda6d50d1b878fecbf207861187

SHA256
f58c53010f6513676dcc3a3f1c8893c56892abb10eebc443edeec761d2959f57

SHA512
fcbf484e90f88c02ce0843e5f860ef662bfedda71e4f6230ffb5466af5b1a696ceae6190791756e153a2210a8ad9c322d1a48c48069e2e288aeefbc5f453fd6b

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
dd9b4d598c5573a504ccbbe3089650e8

SHA1
0e7a11fc4cac1bdd309bb882226643da21ad76ea

SHA256
a37663cbf0d305b821e11c4f72391369801df77472dea12d48a22c3d94d5223f

SHA512
71f8c0246918e0cc94c86adf6843407badfb652e1c3fb88dddfd3c607a65f43d4069c84bb840da949edb373be5dc078c75ccfd4500ebb94c7c4a0cdef1e26021

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
911591679c4a2392411b64d522d8147c

SHA1
177491697595c8d178cc2c7d7950eb4bb1ff3792

SHA256
86cbb1e238ee02390c39ad374987335a4e0a87cb805d386fa756cd837d6f544f

SHA512
401dee86db979f554d52488ec380a11250bf66189a6ad82ec87d5862acdd7f9841b7819392d1e2d33aefada84cec1bf492e2fae13504c47d09af55146772ba5d

Download Submit
/data/data/com.dehodigipuhixoyi.mafuko/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
9b70adcf90f5c2bad50abc3dd2c02ba0

SHA1
036939478e03f20d9cc0e759455d5bfef55dfd23

SHA256
8807a5f6f72e5eacb2a2faf987464ba5089257f38615e550028e4f13a119ac94

SHA512
0eb25bdb8a3f9e41929c27f849bbad51ed5b3481ffee83c86274113d9d81e910ece2f4da018d19bd3aafb0ae5996c49b10370fc586c51be6292bf1809682cc50

Download Submit
/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json

Filesize
1.7MB

MD5
7a6d1e4b6df53e7daac8923b1b411417

SHA1
60056749c0d004c27a2cd00947bb68da9aab1eba

SHA256
c28a4dc6a6c64eebee9fd133d4c93fa683ded4f6700d60248ae29ca4941ae5fa

SHA512
4fb0f76f4b8a2d129f48159190b33666d07600dfd4049f26be6fda5b786f288632fe8c79536f7afae8b862678d45dfded2d270614489f80d259ae9af6bbd9cea

Download Submit
/data/user/0/com.dehodigipuhixoyi.mafuko/app_obscure/Gjmfs.json

Filesize
1.7MB

MD5
6c7be00ec566ec1886cd742547b59103

SHA1
bcfb259ae79f96861a028f30bc36c16ec6eab87e

SHA256
1772c8c91758467d657eda8881f04fc377dc6c57a6299388dddb7541190d73d2

SHA512
af43e61bbf8a448b301212fbeec237f4405fa3c0cbd0e4fa4084556dc63c1a873b909ac176b5b837f19b5e3ae41a2b62b7c8b0fa188246fcc01ab9f1124568c5

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads