ermac | e846b946cbab21b079a1182755b839a9bc61b41f7bed952c97ae479f12b05794

Analysis

max time kernel
143s
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
06-12-2024 22:04

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General

Target

e846b946cbab21b079a1182755b839a9bc61b41f7bed952c97ae479f12b05794.apk
Size

3.3MB
MD5

bd93c2e47f79af38bfef2e711cc28efd
SHA1

fc428b58e7a9b453485b952c57e3d7be935f727b
SHA256

e846b946cbab21b079a1182755b839a9bc61b41f7bed952c97ae479f12b05794
SHA512

9068717abce4acef7891a73e5c8b60ac465bc6f0aff4e9c3dc7b7163b1d42a0a258d5cb5f15f6cb8ca28b9ead84e98c7cfb2279d08986660569075f80332f8db
SSDEEP

98304:4dyQqijKxNlw2+Loz9RCnoQAxgddnG1dE5:qyQdjKx3CUxsoQ5PnGvi

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://154.216.20.102

AES_key

Extracted

Family

hook

http://154.216.20.102

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/4292-0.dex	family_ermac2
behavioral1/memory/4265-0.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.mahabadlar.maruko/app_catalog/Qx.json	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.mahabadlar.maruko/app_catalog/Qx.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mahabadlar.maruko/app_catalog/oat/x86/Qx.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.mahabadlar.maruko/app_catalog/Qx.json	4265	com.mahabadlar.maruko

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.mahabadlar.maruko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.mahabadlar.maruko
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

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.mahabadlar.maruko

com.mahabadlar.maruko
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:4265
- /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.mahabadlar.maruko/app_catalog/Qx.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mahabadlar.maruko/app_catalog/oat/x86/Qx.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4292

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

Replay Monitor

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Downloads

/data/data/com.mahabadlar.maruko/app_catalog/Qx.json

Filesize
735KB

MD5
dc3aff9d4d4af2e82f2f95cb1ebcb638

SHA1
7c507a664fe7764f151f8dd847de0658ab0f0934

SHA256
45498224c343fffca78b0372183ae6d2386494809c3a6653e823691010f4f90c

SHA512
95612cef41570dd873224da933516b19b2e54aa2505542a51f562175fe084ff7fef75248f27fb168b5554b634dd3b7eb0acf0eb72fb48ef8191aa52ff3b967c2

Download Submit
/data/data/com.mahabadlar.maruko/app_catalog/Qx.json

Filesize
735KB

MD5
53571e1e60325874d1ce95b4ee7ead97

SHA1
2487d6b852e59753be4fff382cdcdfc8b7a154a4

SHA256
eacdf955c6020e1be0910f9fce376b200bcf32c79be80f0b910baab67ce9c5c2

SHA512
e2edeabe76fab43b53788d70a63616be2d7ba2c319ae8e498050438a2d1aa5f7649b7bbcf1a5bc8c5f2d3519a7de9d37020663a02bc31ed3acce623c88866900

Download Submit
/data/data/com.mahabadlar.maruko/app_catalog/oat/Qx.json.cur.prof

Filesize
2KB

MD5
dec2f5803992a989dc8672ca90ec854b

SHA1
bb74f92672ca331b7adde56685f214aece62900c

SHA256
78d38a0759c2192defbea73f4c41a913f88444ef750815cf0c734cc10f3412f2

SHA512
ae11c4407d7faa7047cf4c658a830596ce01ef8c9f2089cf21cf4ab661531c55bf3378d88af52be3084eb4972a94ebaf8b4f215e5b6a6abba1f926aab0a95496

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
3131343b1c9ff6e7e548de430da4898b

SHA1
970156398f6fa5bd467b9892268066ef65ffb565

SHA256
95d216d57b8326916868fb3a43fd99b49a01f70646a9fac3c97abe09582f526f

SHA512
4f1f82c7b76bc76eff8bbe613eb0044079ea258fe8b2bd0502146a7ab33c9a3f06b539fed5079402d9d4408cf1ae1e5fde1b86fadeba7c33218ace13557d889b

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
2896662a6277859e693288954ad3ccfd

SHA1
dcc1a3a424117ad683155054ea7376b1f8cee354

SHA256
b18ef540b1c1b132fd543108fe0798b506dd8fbd1cf0e7405ea77c8491993871

SHA512
9e73949c3ec2fbd1bbc7406eae10fd87d0617aebc021715e6f95321aaa2219aa38140ed40ae353f4eaa77605e2fb43a61dac45200955195cc699365521bc9520

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
b8924dac744c1021ac85b1218854282c

SHA1
30b8f747b8557c2937dc8f3a92459ea33c0646c0

SHA256
a6574e2ff5c762b10a9920d0c4b385d4f00c68ad9a1f2d4a47c3dd7c21bb4156

SHA512
e9becba2555dcc3e2c8bbb777d87b94d3730feff674beff31c2137fbab52a466dcaee82897c320c48ca4a81a17cc5348f8262164677926e393c632b794f64a62

Download Submit
/data/data/com.mahabadlar.maruko/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
124e4f7e3ad55229adbcafd85a7ea9bc

SHA1
bea6f9b17f9248e7d1e5ed3bd2da42d5cdda1bf4

SHA256
efc7b0cbe8523c941137eaa1d7f7d8b8aa282c00f6edc9842150a01fd081fd9e

SHA512
fb6181cb4a2d37175525239e2ee6594bc496f335f2a0848fbdebe219cbca0ad0ffe76f683a634e8f3d42ecae54199f887b33c571ad674e8ac7171626441e9f4b

Download Submit
/data/user/0/com.mahabadlar.maruko/app_catalog/Qx.json

Filesize
1.7MB

MD5
ac1a36e087a4f1f5116c8867f7221e73

SHA1
008e028b7a56864773ec393bd7ad3a955b31dbfe

SHA256
be2b50437398d4af8eccc33a42f42b0419a62c606b45bb0e09a619ce09920064

SHA512
78a52d81c343ae7790048be25c5916d435ab1978baa2a5c9dc15226c9b154b2143d4a54ecf008fd7cf9d4ae9000f4c759b9052e98e5a04b235728524084a4d3e

Download Submit
/data/user/0/com.mahabadlar.maruko/app_catalog/Qx.json

Filesize
1.7MB

MD5
dd139ea50df6f15f4fd6ef669b88fe93

SHA1
014a8feb780e713bbdb83bf7d2b0ffaace444a89

SHA256
06ce1d32cfb90bc763f69618a4d23759e5a61705599dedc2a64f6fcf4b8e7a4a

SHA512
d073eff575460d171d75d0795516ce3addd46669a909903b0baf515e74b50a72c218d0bb952f4c47cb1c05c3b296f0e94e235660b8e61dd51444bf5ce6948603

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads