ermac | abce8bd54a83e5f633f5a7ed768eded74763f881470d1a56a6dbee9545fbb76a

Analysis

max time kernel
42s
max time network
131s
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
11-09-2024 22:05

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

abce8bd54a83e5f633f5a7ed768eded74763f881470d1a56a6dbee9545fbb76a.apk
Size

2.7MB
MD5

84f816175428997fd2050de418ed3ca6
SHA1

da5470ac14ed550890f6adeaacfeb01697cb7f13
SHA256

abce8bd54a83e5f633f5a7ed768eded74763f881470d1a56a6dbee9545fbb76a
SHA512

e18e4ee586a838feab6e28841390039822c3d6d5c2df14abb77534a38acbc83207bb4d8b73679a7e8b0ccd59268f37cfdd83c172364418ce73609930c1d8c90e
SSDEEP

49152:/cDtt4uNL5PR1mJ2Lg8C4yW2Z+Ng8DfH8cjBbnyEG3/s:OttPzmX4oQdD8cjVx

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://91.215.85.223:3434

AES_key

Extracted

Family

hook

http://91.215.85.223:3434

AES_key

Signatures

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

Ermac2 payload 2 IoCs

resource	yara_rule
behavioral1/memory/4283-0.dex	family_ermac2
behavioral1/memory/4257-0.dex	family_ermac2

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

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4257	com.feboramudima.dubave

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.feboramudima.dubave/app_DynamicOptDex/IfMx.json	4283	/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.feboramudima.dubave/app_DynamicOptDex/IfMx.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.feboramudima.dubave/app_DynamicOptDex/oat/x86/IfMx.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.feboramudima.dubave/app_DynamicOptDex/IfMx.json	4257	com.feboramudima.dubave

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.feboramudima.dubave
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.feboramudima.dubave
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

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.feboramudima.dubave

com.feboramudima.dubave
1⤵
- Removes its main activity from the application launcher
- 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:4257
- /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.feboramudima.dubave/app_DynamicOptDex/IfMx.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.feboramudima.dubave/app_DynamicOptDex/oat/x86/IfMx.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4283

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

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

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

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

Loading Replay Monitor...

Downloads

/data/data/com.feboramudima.dubave/app_DynamicOptDex/IfMx.json

Filesize
675KB

MD5
1dd0cb79dfaed9d876b7d13bf0917859

SHA1
563c649bf72a7b80ba2747c16e9150b8048c68f1

SHA256
920f853645bd2606739ea627d3ca592351f03780b04d3504f7991675b958251d

SHA512
f071645891698959a109e476325b6361ef580fbc2ab4b306a2a6c55149e24c4b159d5d6f5f442b08789f14732c826dd5f1edb2e12c88df3c2e2cf9e587274ec6

Download Submit
/data/data/com.feboramudima.dubave/app_DynamicOptDex/IfMx.json

Filesize
675KB

MD5
cea17bedea880e352f7971e2a8a529d3

SHA1
3a76ffad1aea54a54d622b5a345068398b9cef45

SHA256
5fa3781affc534371d7c1c256b8f902cfc8c0dd2f94be1ec1bc10111f1365a41

SHA512
c499d8c46ac217efdcd27eb4da9a5985962d8ea076ccfb3114dd5c51d118c4ddea96608b030981b6ccf301c0914525f1161d2005de609beef7100eefa100411e

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
c2a5e7c03f61e8a2b7dd6fc81859dfe8

SHA1
d48adc5f0a94442ea1aabb2cfc96a47309ec838e

SHA256
3253e11008a5680b6597614066de41b294a9ed2a969e644bfb146a4cc774c01d

SHA512
b42c9f0ff869c4a2ce40ef26f6703c94c46b475cf1ca9b2630ef6aa43146b68fd475a2963be66bc50d4f94cc88227c578b902b776c7aaf167561a45c07330bd4

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
cea10d01640e349ba7ad4a79dad294bb

SHA1
01582ed161b38235d85b6774f2d894ef6341860a

SHA256
a0c163348dbff1dab0b00e809b519389cbca14c432fa7765ddfb60d776e52203

SHA512
c16778eecfe3878c80062b61721f8caf13f6aad20b9bae045b1bff66ce5f08a4d02001c8b5c38d0f6dddc4fe8a11cc4d37ab7db4ceb84dbc41bd2c0c09c7f314

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
50b3c7303c970be5a964264f2e70e658

SHA1
639a0bb723b152bef86a6bcf69eee55442159a6a

SHA256
040cedc2c815dc4f319fef562b2d76897dd3edbb03912864ed8250498b554c6d

SHA512
5bd92e8f58fc1c36f2adb56ea7d9d65685bd8856f10f8f8e4d7a165850258a3b9a01e717f4267b1a8380d7308e651a873ca61382ed96cfcd5146850728a7d7c7

Download Submit
/data/data/com.feboramudima.dubave/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
492d1f8c46ad4816c2cc17d127f2af00

SHA1
c5d2f4e223adc3655431c7842668cbe58ab518df

SHA256
38f5e821765b22c387f0f1d9837bb0dc3dd0f9fc572aec8a8a5325dd2bc61aaf

SHA512
0521b1d758c48095e300ae92022fe79d9b150e39fe8865174574257e6cacb5c3847da67906c6b1befbcf113cc6cfe15fdfcdcc0eda067a92f52d1bd5f5d6197e

Download Submit
/data/user/0/com.feboramudima.dubave/app_DynamicOptDex/IfMx.json

Filesize
1.5MB

MD5
7bf755464bda2a480ff610110dabd5d8

SHA1
56e732c3f1bdb9d0b49b7ab3d64868e702f8e13f

SHA256
253aa7d0620624e7ac6042c3456394d59b7576aac8965eb2aae12786b97f9fa9

SHA512
81537032c078d59fa36af65132711143f37a5b20dc3120db2190509bf945012c30e3e74b4bb4114708076c2a9bbb527fd8fd088b94747e66343e605be3ace9fc

Download Submit
/data/user/0/com.feboramudima.dubave/app_DynamicOptDex/IfMx.json

Filesize
1.5MB

MD5
45b8130deaa1b09ac8ab73cffc282cce

SHA1
1ef7d3bc07c5b9cb31c2e2afcd5e02f8cf0a00a7

SHA256
129550d8ca6c44d0137d3bcd4400aa73717491edf183448579ffe3456ced8c86

SHA512
49fb2ab47def95deb1a4479fd6df5c1def4d3abeb134e53aba3dea1506e9395d57e72362bd0ba3662604d19fe5264967d7d58f59329ba506c2fde62eed1e6ee3

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads