ermac | ef94d055f7d3d318a2d33dcdaa2182fdd7a30c0ca0f9235e20dc6b8211aed14e

Analysis

max time kernel
6s
max time network
154s
platform
android-10_x64
resource
android-x64-20240910-en
resource tags

arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
submitted
13-11-2024 22:03

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General

Target

ef94d055f7d3d318a2d33dcdaa2182fdd7a30c0ca0f9235e20dc6b8211aed14e.apk
Size

4.7MB
MD5

00128fa75ad5dd22f77b0512d3587601
SHA1

8693752601503b77a56d0520569ded251b7348c2
SHA256

ef94d055f7d3d318a2d33dcdaa2182fdd7a30c0ca0f9235e20dc6b8211aed14e
SHA512

92af7968be606a7749b069ee5b9d023569ae82e9af5de58ff08fa0b2681ef445575405f05d46d62ae77ab10751701d791de764dd6f6738e29f1b41064473fa76
SSDEEP

98304:49E62rVCnNf4UlNQ4g/Ho4BAqh3sRHF/T30uqTddAVQrTkJDuJI6lzed+hQrEsCl:KU4g/IJdJim6ls+hQ4zf

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://ytgrfesrjhgf.pro; http://ytgrfesrjhgftf.pro; http://ytgrfesrjhgftfuyfq.pro; http://ytgrfesrjhgftfuyfqsre.pro; http://ytgrfesrjhgftfuyfqsrey.pro

http://ytgrfesrjhgf.pro

AES_key

Extracted

Family

hook

http://ytgrfesrjhgf.pro; http://ytgrfesrjhgftf.pro; http://ytgrfesrjhgftfuyfq.pro; http://ytgrfesrjhgftfuyfqsre.pro; http://ytgrfesrjhgftfuyfqsrey.pro

http://ytgrfesrjhgf.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

Processes:

resource	yara_rule
/data/user/0/com.mokusubitivu.zexajo/app_suggest/qOJs.json	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

Processes:

com.mokusubitivu.zexajo

ioc pid process

/data/user/0/com.mokusubitivu.zexajo/app_suggest/qOJs.json 5093 com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.content.IClipboard.addPrimaryClipChangedListener com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.app.IActivityManager.getRunningAppProcesses com.mokusubitivu.zexajo
Queries the phone number (MSISDN for GSM devices) 1 TTPs
discovery

System Network Configuration Discovery
T1422
Acquires the wake lock 1 IoCs

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.os.IPowerManager.acquireWakeLock com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.app.IActivityManager.setServiceForeground com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.net.wifi.IWifiManager.getConnectionInfo com.mokusubitivu.zexajo
Queries the mobile country code (MCC) 1 TTPs 1 IoCs
discovery

System Network Configuration Discovery
T1422

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.app.IActivityManager.registerReceiver com.mokusubitivu.zexajo
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

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework service call android.app.job.IJobScheduler.schedule com.mokusubitivu.zexajo
Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs
impact

Data Encrypted for Impact
T1471

Processes:

com.mokusubitivu.zexajo

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.mokusubitivu.zexajo
Checks CPU information 2 TTPs 1 IoCs

System Checks
T1633.001

System Information Discovery
T1426

Processes:

com.mokusubitivu.zexajo

description ioc process

File opened for read /proc/cpuinfo com.mokusubitivu.zexajo
Checks memory information 2 TTPs 1 IoCs

System Checks
T1633.001

System Information Discovery
T1426

Processes:

com.mokusubitivu.zexajo

description ioc process

File opened for read /proc/meminfo com.mokusubitivu.zexajo

ioc	pid	process
/data/user/0/com.mokusubitivu.zexajo/app_suggest/qOJs.json	5093	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.app.IActivityManager.getRunningAppProcesses	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.app.IActivityManager.setServiceForeground	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.net.wifi.IWifiManager.getConnectionInfo	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.app.IActivityManager.registerReceiver	com.mokusubitivu.zexajo

description	ioc	process
Framework service call	android.app.job.IJobScheduler.schedule	com.mokusubitivu.zexajo

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.mokusubitivu.zexajo

description	ioc	process
File opened for read	/proc/cpuinfo	com.mokusubitivu.zexajo

description	ioc	process
File opened for read	/proc/meminfo	com.mokusubitivu.zexajo

com.mokusubitivu.zexajo
1⤵
- Loads dropped Dex/Jar
- 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:5093

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

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Clipboard Data

T1414

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

Clipboard Data

T1414

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Replay Monitor

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Downloads

/data/data/com.mokusubitivu.zexajo/app_suggest/qOJs.json

Filesize
691KB

MD5
34eda891de0eddcbd0f2c5cd6b70a436

SHA1
8e2bd325df089df52534e4c75d9aadfe0c5bdca8

SHA256
92e59e4cf96282d1b450d22c84dec9b10a9d8ee803a4a6255dd3dbab6adb2bb8

SHA512
4b26c0ffdb2cd2185db677bb2e8898bf01c372633be44a5f736bbcc171aa1fc4e1ab1dd6c734771df69260ea49cc10813bb801369ae9284d259113da1ac3eacb

Download Submit
/data/data/com.mokusubitivu.zexajo/app_suggest/qOJs.json

Filesize
691KB

MD5
b0cf3eb44021e9ff24a9aff9a6d618e4

SHA1
1e8567b94285305637b424289298e9e8103bb68c

SHA256
1a9be3cbf38b4306df2a808a52ce709be880db6df93e7a58b240be193f60629d

SHA512
f28ed9aa4f8de4221e8bfadfa3a4d09616c00066518d252e70b453f40e1ccbf0a85eb59f09cfa97954725b48182b2cb891f5852aa237d1cfee650c7199cf24c7

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
a6ee9cd9c2518093cd01ba545cac285a

SHA1
dc4507e578385df7bf2bc50c473d4bae1483dcc6

SHA256
59af3725f83a8441396bbcbf5ae49ca8a3dcd27dc6b59867123ef7b30063beb5

SHA512
b6b20f199159ac9a307ce89579f6039c176cbc4680427012eacb543982c06b5c96c76aa64873e6277fc0c8bc82f75bc7a20d2a35be153f3714e5b6c90a32c785

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
f3dddb567578484e539f546fcadc7c29

SHA1
b2bd687e8bef8776ee89262c68d235664de720eb

SHA256
c15a5a5421a16ee393b225678104e2230a5e7077ae4c9760729f540807887916

SHA512
f5e53478b16825ea2d9e97fdc0dac2e1497507f007fbe59a0bcc0b234b4344ef15bbe3334a4a3ac891bd00fbbd936a268be6a84f6ced00e8e7d469ee8e480a77

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
4dde4f0716573181734a3ee5e98ed91e

SHA1
30d95aacb811a67352a532fccf4d052ca933c447

SHA256
bed57548a7bbd06a490bb047b0370695feefd49e71707a7359383aedb561cc44

SHA512
5587ac59a2c1530173c3c3353fd8e151e34fa90b12bf63994efab18cbe937cf76237a75de9712f0edbbe6bfd62090740ba8bb39054d5f65ae0a69121072558cb

Download Submit
/data/data/com.mokusubitivu.zexajo/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
5a727e2ffd7863246005a8609c7737a8

SHA1
73e75486c67a4ad7d53251dd7049a0fdbd723937

SHA256
d44aa54c8606dfad9749740d2d6bccfbc0823ad4158d4dfcf4d6f39aa047ec0c

SHA512
6ce6e307a01e6ee68f1b5cbd4dec9a79ac4f0f540c1ba0a3d773a68e4a1b11f9fc26d7aa0aee69f710303055833e5464216f2ad4a1ac39e000a60b81a9fb2b74

Download Submit
/data/user/0/com.mokusubitivu.zexajo/app_suggest/qOJs.json

Filesize
1.5MB

MD5
56f384576200bda9fe2fcf7a0fe0ff1f

SHA1
343e91224ef03dc6b323ade4dae19b36fe982a82

SHA256
20345681cc4e1b9e271a70f1db9320256e7e905bd60a0bf583f3af0e1adf3456

SHA512
4d023dd3f639dec6a6e8f2d2f4d918b942bcd33aeac2917a7610ed8a416917407e9732407b2e74af9498080695e2dc26ef1604a6688dc4c3ff5ec92b363c854f

Download Submit