ermac | b58aba397abcaed42099ebf7b34bef8b98c7dbdef2a6a0a47478524d7351f49b

Analysis

max time kernel
16s
max time network
157s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
14-01-2025 22:01

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General

Target

b58aba397abcaed42099ebf7b34bef8b98c7dbdef2a6a0a47478524d7351f49b.apk
Size

2.7MB
MD5

62b9641de1f466642cd27bb04dfab99f
SHA1

fa6453e59edfcaa2905f6caa6d7744a4279b0e33
SHA256

b58aba397abcaed42099ebf7b34bef8b98c7dbdef2a6a0a47478524d7351f49b
SHA512

76c207aa922fd9472f28025a33b36db5b150de53f47735005ebff91992dc7403d8b9ecf994d187f1e8008a448c4c5d87507a26de5265212a1b46c6f4f75d6f32
SSDEEP

49152:y5p2a3rgaSLPjVi9P7WaMDM7Mm5zy/sJfj2R4spqHSxl5YDVN7wwfX0GX6d2qh:i2a/KVi1FMDaMZ/slg4mqc5YD30QJXe/

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://154.216.18.137

AES_key

Extracted

Family

hook

http://154.216.18.137

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/5070-0.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.zzkasaslkasata.kuri/app_drip/mRNHWd.json	5070	com.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

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.zzkasaslkasata.kuri

com.zzkasaslkasata.kuri
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:5070

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

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Downloads

/data/data/com.zzkasaslkasata.kuri/app_drip/mRNHWd.json

Filesize
736KB

MD5
8b6c73d0a2aa321394cfc51e85881cce

SHA1
15978d65e2b7dc950743b533119648803fa52673

SHA256
d40b773c104a3590e5f5d1e6f8438ace5cf168db965a77e5e2cfc7a326afe721

SHA512
45de74a2c0bd82c3ecf3980810196daaeb4bcf829782005ee1cd174eb3e5104c95eea116157441389305f40a3029514f4b28faa7bb1b0aad343d520710eb9bc1

Download Submit
/data/data/com.zzkasaslkasata.kuri/app_drip/mRNHWd.json

Filesize
736KB

MD5
cc89e32f2ce0756c4fc6be242b0c8bda

SHA1
fa0e843a6209db6b321ba80a978eaea744a7458e

SHA256
d17d65e64c8e7bce294b7d02f3f79c9ce8a6448c08755f7fe69a932fa54bede1

SHA512
5c5a2bb39c7641c2993a10ab5f737ff6b1dc8a99f26a647385ff497495f7b745c5f8441a572f9bd14f6c791afc920afeed2d2b576ba413b092e80ae616647244

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
5eb829aead1d343b6caf93979c885fac

SHA1
622bd906417fa8dc36640fc9f7c61886e45951fe

SHA256
7ecd9fe6e6c574d6f8f32f4353461e7d12a4a28969e92085211811703a8d75e8

SHA512
6105bf87e1319a94d6f899ed164425bdb6a1f2322aaa6d7abb649020fc4cf4256d57f0165a98653edc4372efc70357e5cbca51c4c368abf310393c0f9cc5d7ef

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
fdbcb87ec2579271910d52debcc4a114

SHA1
4089e5eb372bfaebb5f81f0ad9718d175fd9b45e

SHA256
ca055e0f5d6d4eea46bfc2e93ddf2b7d344c938d6cd90b86bb975d90c531a7e2

SHA512
05d6c65f3d60913139027211d985f8f35871e4d3940e28b54472cf0182979c13252fa87bd7cd0017ebd690e8497d5224e8b8c5872001c46220234d90291286b8

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
bdfa0bff926550c864e02090a02bd9f9

SHA1
fa4f5f862c639f8b67340369aa020b65e862d5cd

SHA256
fe00769e7c57d9898759a205ff1aec709c1627825e2bb0ac183eed4a3fd7df3b

SHA512
fb081a284201306f5a77895a2fd9415e3cb81616399d78491d05e1788f056f1383537e0e83f3143e33ee92bdf9d22e26255539645887da9cd5763d568dc64d8b

Download Submit
/data/data/com.zzkasaslkasata.kuri/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
3cf8f13383e707f90ce2c8005cf4d43c

SHA1
391c5e769030866839bb66e83124ffea4efca739

SHA256
b6cf5a0bcbca4d1d95f916a11b41c929cd066325edfb396e0bd03c341529c897

SHA512
b776319770e9875d224565b371b54301b4cfb992d243bda57f03483774bf01e4552106c04b05227e1246e8f22d24d493a5da69bae9db47e0d369cf145a8aaf02

Download Submit
/data/user/0/com.zzkasaslkasata.kuri/app_drip/mRNHWd.json

Filesize
1.7MB

MD5
1ddedde67f70d4941da285e210da50a2

SHA1
939e3501285edf555d648284998df8be9f1f97ef

SHA256
da4946dcb546e0db61339cd3d0e8129cea24091700f6fc627bf32872d3f7c5c7

SHA512
7e32ee928ebbb34e56d55edd7058ed9e886891a24a41e6f4882258046bb5b2a16548743bd8945932e977e29fb47a564f022d9e1f5a435d5ab8a8141501c6a3ef

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads