ermac | 7c2cda3b77b484079af1befae1d9554b025af1ca159da99a62bbfbd5fb51b300

Analysis

max time kernel
179s
max time network
131s
platform
android_x86
resource
android-x86-arm-20240611.1-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240611.1-enlocale:en-usos:android-9-x86system
submitted
19-06-2024 22:18

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General

Target

7c2cda3b77b484079af1befae1d9554b025af1ca159da99a62bbfbd5fb51b300.apk
Size

1.4MB
MD5

5a0591c31da2d2b20118bc16c4698c0a
SHA1

1ed5da21fb4bb5cda23045472c1d989d093be6d1
SHA256

7c2cda3b77b484079af1befae1d9554b025af1ca159da99a62bbfbd5fb51b300
SHA512

a50e92bfb98d34430ebcd78d5cd026d1b1e44f0b33ae339ad9a72733e8686204096a7f739e580d763746a4bcab90eefbfb2349b0806a63ef74f108881710a2b4
SSDEEP

24576:mkopFfVA7ttINY8xgLPbyIa86q6gPQ2dJp++ReNJSyOMAx5ZyW1:WDfGtINYZmDJqvQ2f76EcuZD1

Score

10^/10

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

Malware Config

Extracted

Family

ermac

AES_key

Extracted

Family

hook

AES_key

Signatures

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

Ermac2 payload 2 IoCs

Processes:

resource	yara_rule
/data/data/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex	family_ermac2
/data/user/0/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex	family_ermac2

Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
rat trojan infostealer hook

Loads dropped Dex/Jar 1 TTPs 3 IoCs

Runs executable file dropped to the device during analysis.

evasion

T1407

Processes:

com.ranixebovura.delasawa/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.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.ranixebovura.delasawa/app_ded/oat/x86/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.odex --compiler-filter=quicken --class-loader-context=&

ioc	pid	process
/data/user/0/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex	4260	com.ranixebovura.delasawa
/data/user/0/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex	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.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.ranixebovura.delasawa/app_ded/oat/x86/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex	4260	com.ranixebovura.delasawa

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

Processes:

com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.ranixebovura.delasawa
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.ranixebovura.delasawa
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.ranixebovura.delasawa

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

T1424

Processes:

com.ranixebovura.delasawa

description ioc process

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

T1422
Acquires the wake lock 1 IoCs

Processes:

com.ranixebovura.delasawa

description ioc process

Framework service call android.os.IPowerManager.acquireWakeLock com.ranixebovura.delasawa
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

T1541

Processes:

com.ranixebovura.delasawa

description ioc process

Framework service call android.app.IActivityManager.setServiceForeground com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.app.IActivityManager.getRunningAppProcesses	com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.os.IPowerManager.acquireWakeLock	com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.app.IActivityManager.setServiceForeground	com.ranixebovura.delasawa

Performs UI accessibility actions on behalf of the user 1 TTPs 6 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

T1629.001

Processes:

com.ranixebovura.delasawa

ioc	process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.ranixebovura.delasawa

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

T1421

Processes:

com.ranixebovura.delasawa

description ioc process

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

T1422

Processes:

com.ranixebovura.delasawa

description ioc process

Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone com.ranixebovura.delasawa
Reads information about phone network operator. 1 TTPs
discovery

T1422
Requests enabling of the accessibility settings. 1 IoCs

Processes:

com.ranixebovura.delasawa

description ioc process

Intent action android.settings.ACCESSIBILITY_SETTINGS com.ranixebovura.delasawa
Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs
persistence

T1624.001

Processes:

com.ranixebovura.delasawa

description ioc process

Framework service call android.app.IActivityManager.registerReceiver com.ranixebovura.delasawa
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

T1603

Processes:

com.ranixebovura.delasawa

description ioc process

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

T1471

Processes:

com.ranixebovura.delasawa

description ioc process

Framework API call javax.crypto.Cipher.doFinal com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.net.wifi.IWifiManager.getConnectionInfo	com.ranixebovura.delasawa

description	ioc	process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.ranixebovura.delasawa

description	ioc	process
Intent action	android.settings.ACCESSIBILITY_SETTINGS	com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.app.IActivityManager.registerReceiver	com.ranixebovura.delasawa

description	ioc	process
Framework service call	android.app.job.IJobScheduler.schedule	com.ranixebovura.delasawa

description	ioc	process
Framework API call	javax.crypto.Cipher.doFinal	com.ranixebovura.delasawa

com.ranixebovura.delasawa
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)
- Requests enabling of the accessibility settings.
- 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)
PID:4260

/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.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex --output-vdex-fd=42 --oat-fd=43 --oat-location=/data/user/0/com.ranixebovura.delasawa/app_ded/oat/x86/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.odex --compiler-filter=quicken --class-loader-context=&
2⤵
- Loads dropped Dex/Jar
PID:4292

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

/data/data/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex
Filesize
1.5MB

MD5
30e4337aa68709c8f6ce01b80152e81d

SHA1
0a5ca096e3b56b6bdb8c2a001389a20ac2fe74b2

SHA256
7019c6bfd4a49e1fd27aab97bcd586ffa244c3c68401cdd8b07925b6e68c7f52

SHA512
879d2cba8a8914439f5f4960e778472a721c5b2162fff98a480bb9af7b9f08a4914d766c84f20e789123d219975bcd1bc21c24a8d7bdfd9b7a18dda7bc86ab4a

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb
Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb-journal
Filesize
512B

MD5
998bd8adfcd69f09a5faedc513cb1bea

SHA1
54860f3e5c482b266d18f92f637626ece4d48a20

SHA256
a858d410cc689b8598041f0d60ec2215bcaff8383c59d5fbf8e2cb22a052c711

SHA512
22c15377346adf84698d016fc466b0ed86f1216db597fc2004a7a4354308f9269fcf2a26a65a1e84e5941abbfbd5ec7b8a3c0599206bfd64b6d8c2f9eaf01356

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb-shm
Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb-wal
Filesize
173KB

MD5
f67f2d622cbad4da066196fae6e80c6b

SHA1
59029ced079245026a527603687c5fc3c3d1a4fb

SHA256
4dc01c7af90c86eb7938f290e3212711446682fcbaa485a3ec65d7fda4764241

SHA512
34660fa745f44b8f31643b5760f574b377d5a3a56bbce3b195b1220dd92f59b142e67643522735111fd49cf60c021771f68917470eb0554c2cd52bbd258b1c40

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb-wal
Filesize
16KB

MD5
0eed69fda2f7357c78eb26ef7704e706

SHA1
8a67ad9932b2100e76630ab4615aaf4d31b2841d

SHA256
43e5b807522fa1dadf179a1489245b24b202c1e310461dbd24852cbb650e2e31

SHA512
44c1135e42ef712d5fa4d20584887851dae41df2ce815dc60581fa08822dec2d147e7a3212a8e6463c75fa0a6974340ddaec89b929db9deee116d1dbc0c249a6

Download Submit
/data/data/com.ranixebovura.delasawa/no_backup/androidx.work.workdb-wal
Filesize
108KB

MD5
042116caa10b784351e4485f7d4ccf3a

SHA1
02caa15d97579cb2dd5199fe22d047a0e7414168

SHA256
ac2ad1893d3212164165f48a7a4fc5ad6edaeb7234a5ba7ac59fb15319628b2b

SHA512
9e0311a52e14a1a2354cf37f67d174dae9e9d27d8abf74ef5444bfe1e6fa6386d9c751ca6a5fa9b77ff59244cba87849865a508a44b8ad7b088e59ef4e623966

Download Submit
/data/user/0/com.ranixebovura.delasawa/app_ded/ZiHrSbycxxHHsTXPcKPnaY3PW1Yb5Qat.dex
Filesize
1.5MB

MD5
799add7144037575f35d6e6b8ae845e9

SHA1
a66dd3f36f8cbad318ceb4229522b55561e97ce7

SHA256
a3c755a919f71d960388992c704e27844bce6f6661068b265963a06ae156d688

SHA512
f70bd5cb515c6b286b0fcf7a3a11cda23027ce09601448755c0d51b7341c33197e15b645b99040b2b5ac3a91e405d6e0799081995856232520bd455ed66a898f

Download Submit