ermac | d83b14887608b86d77273b6ab268684b019f45c700e44409272ff68e72577e48

Analysis

max time kernel
57s
max time network
151s
platform
android-9_x86
resource
android-x86-arm-20240910-en
resource tags

arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
submitted
27-11-2024 22:04

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General

Target

d83b14887608b86d77273b6ab268684b019f45c700e44409272ff68e72577e48.apk
Size

1.1MB
MD5

0711a79e13ac726e1afb7946e96110ef
SHA1

a6eff0da36ce0e166b4d4c60fa66192c2015be43
SHA256

d83b14887608b86d77273b6ab268684b019f45c700e44409272ff68e72577e48
SHA512

0db40cac6ded10a44a42819e1d7d5f3d0956389828346d112f187ef3c48676fa2214487447042987f1ac5e08484161c01d2b7239748446b48e4dc475e1f411f6
SSDEEP

24576:hg/7o+LNSDoObHJV7yOzdAiCPNnBt0eBPUTIQ:hg/xLQDo+pV2ydAVNBSeBUTIQ

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
Ermac family
ermac

Ermac2 payload 2 IoCs

resource	yara_rule
behavioral1/files/fstream-1.dat	family_ermac2
behavioral1/memory/4225-1.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 3 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin	4225	com.gebafemaxiwa.hike
/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin	4250	/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.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin	4225	com.gebafemaxiwa.hike

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.findAccessibilityNodeInfosByText	com.gebafemaxiwa.hike
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.gebafemaxiwa.hike
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

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.gebafemaxiwa.hike

com.gebafemaxiwa.hike
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
- 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:4225
- /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.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/oat/x86/classes-v1.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4250

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

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

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.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin

Filesize
1.5MB

MD5
c3acad87885f0cb7e335d2ac8608019f

SHA1
9ab5a5283b0e1fedaea9d0ad80b42c62c281f420

SHA256
884368417c8a0911c8a13713419ccd117d14a1a6ca3fe5023027799d1de12bae

SHA512
4b546bb9ece9607b57b8a3949290bf1c74aada441b80f3e7a136f0e1ac0e683c07a73a6542042feb1aa56f2562715150fc52180b15c71a92c99bd78fac4ef8fc

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
ea499287ecbaf63b57434c3d12fc63fa

SHA1
00621622b8caa702ad3af5767f6c2211efe84716

SHA256
c7ea37d4056e054bdd7ce2c834cf7114dbc0a04d00f561d5c213bf9b88598a41

SHA512
deed66965146a84687cacc78667c78993d5eef7103e589d7ba7bccc2204736522841c54d52e4f3296ee97d60e17f17315f0eff59d8dd412a14f9e8030a7225f1

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
b815da813b45ffe197e55321f068add8

SHA1
70c946a70de5ed4eb23a12c07450de6dacde7d1f

SHA256
68e6cdaf0c77c6adc4f87b145f8a2781e0697366171118c5932bfc8533c8ceb1

SHA512
d064f60b07c12e979923b3bd8a76fbed81092ae862650215b64dac4f3fec8f4874a76d90f7d7cdc917f1857818cf598d00aefa20ff81de0b91866a683f2bd391

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
32f8ff1697dbcb3142799373b751dfe8

SHA1
ce8f5ab38bd3b3833aa87cc998f50ada05175375

SHA256
789af12ca54e228fcef4796fa88a4389627c4d3e4bdd9c9e735cf28bf5681bd7

SHA512
9495c9d13ae1081d4d78845f81a2a539deea87122cf19c59d5d6e4a31abed5dce924caea244a2e88dad9f052751f194c1869ffc539ac9f3bb54c7487a6cd597c

Download Submit
/data/data/com.gebafemaxiwa.hike/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
4c6cdde7cfb4caff7a02cdb8d94a1587

SHA1
e3de5cf721c7f691791d7fa5875cca855091a841

SHA256
cffcbafc6007ad7e93c19a0e5eb32aa99f40ab9bcbb78a622811cefb979056c4

SHA512
5755bb7101cacec463aab268a7ddcddaeca3bc55d68ae9b2fba792cb9c6ee77d1c7ed79b1452a1ff25c0cda0239be3bd8d86bca7837f66c2fc41177c4e21b6a4

Download Submit
/data/user/0/com.gebafemaxiwa.hike/app_apkprotector_dex/classes-v1.bin

Filesize
1.5MB

MD5
b929421694c440c63e5f858d6a1db607

SHA1
6babf14e44a32efc942ae88a995297c6ed31afb5

SHA256
cb2475a43339622094266026ba3e0cfd674f42f8a6c913b7914dfa8c16a6e463

SHA512
af62aae7aaf79930e7f0aa170524b217911071c103e0db9857220ab981374eec186dde4a4fedf40f32ecbc18c23404012b23415000aa03c57ffc15dfc62e44a9

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads