ermac | 8f0eb9598f62d7fe2cfc3cba903b8eaa12c8b5c038fdbe44cb1eb6d534b8eefb

Analysis

max time kernel
50s
max time network
150s
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
28-01-2025 22:04

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8f0eb9598f62d7fe2cfc3cba903b8eaa12c8b5c038fdbe44cb1eb6d534b8eefb.apk
Size

2.8MB
MD5

6c2ab9818107c6ab88435a6c65e3d7b4
SHA1

4e4666d21321cbdfd09f569579f05f7634b85a5c
SHA256

8f0eb9598f62d7fe2cfc3cba903b8eaa12c8b5c038fdbe44cb1eb6d534b8eefb
SHA512

4bd283bb0ea80908ebfc67e872a868b178a1c897fd27944722a27359cabe1e86c9e356545ad5ff90a504c5acac9572cde92f9d30e4975605c2ada27bef6be753
SSDEEP

49152:lmHqSDEL7ZidXXJ2pg8JM+WqP0s8OdhKQkPaCFaSQp4zW:cHqz/ZcXXKMM8qQPaOaSNq

Score

10^/10

ermac hook banker collection credential_access defense_evasion 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/memory/4247-0.dex	family_ermac2
behavioral1/memory/4222-0.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 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.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json	4247	/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.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mogukepusotada.buma/app_DynamicOptDex/oat/x86/jxiQy.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json	4222	com.mogukepusotada.buma

Makes use of the framework's Accessibility service 4 TTPs 3 IoCs

Retrieves information displayed on the phone screen using AccessibilityService.

collection defense_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.mogukepusotada.buma
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.mogukepusotada.buma
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.

defense_evasion persistence

Foreground Persistence

T1541

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

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.mogukepusotada.buma

com.mogukepusotada.buma
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:4222
- /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.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.mogukepusotada.buma/app_DynamicOptDex/oat/x86/jxiQy.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4247

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

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json

Filesize
674KB

MD5
75057f108cb8b063e0f855d4d839430b

SHA1
81a05ad1885fd06af76f79553e0140c168e67757

SHA256
c77153cdc99b7ef7c3f3f0858166e3c11969a22f0070583ef03c9b09ca332841

SHA512
32ad37e6de4644a1a4251f89aa25ca535158848705a1621c342b281f2b3c6ee911b75365ba51f18efcd2fe1d4cb61368204aeddf9850abc67dbb0f025fba2cf4

Download Submit
/data/data/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json

Filesize
674KB

MD5
d41a795f597c022e5c1e8bf59b1a2981

SHA1
06eab40647796655b52159d6b117e849c14bb4a8

SHA256
5ee847df0a416af0ce18186b2e8b9cd34f1ae82746647db91002615f156c8d89

SHA512
517c0bffda9354d6833b50e60168a675e121a31d614827dd2dc675fb81248889020c4e02ae46622549a9094ad2ce3026b0ad89b8add7e1136a7ce1c49ca5faff

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
45b2898ce644bb6dc1a7a559c39eedb0

SHA1
295684f1690005902a750dd886725c3f8231b8bd

SHA256
50f3772f41a7f950831ce99c686d7db82080afabb6cb1e1c0355e2c8610efb69

SHA512
458aa422858f975c3fb604142ad115bcb19b21e2938b9d6d10a9903be8309f29cfff68b274ca721ea43d85bb613fa706a0a865ee4e3f562ad89d4066ebb453d4

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb-shm

Filesize
28KB

MD5
cf845a781c107ec1346e849c9dd1b7e8

SHA1
b44ccc7f7d519352422e59ee8b0bdbac881768a7

SHA256
18619b678a5c207a971a0aa931604f48162e307c57ecdec450d5f095fe9f32c7

SHA512
4802861ea06dc7fb85229a3c8f04e707a084f1ba516510c6f269821b33c8ee4ebf495258fe5bee4850668a5aac1a45f0edf51580da13b7ee160a29d067c67612

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
16179e9094425943a1cf30b511e429eb

SHA1
785cb5171985012da6048f971820bf42e7385a2b

SHA256
3b95a01703efcb8ee3d91e2e1399a7b44e4761bacb709e2e52ae66fe43bddad8

SHA512
4d70e8a64f5ca33e3a26dd6c3df2596871e7f2fed02c6882708660bf2627018f8ee64b0c109c014bf16425e3bc0a54ce18c863b03981fdc8cf6f8148122926b8

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
0e00b2226055788968b5bb0d6ec2fc5d

SHA1
f0c90437665adf84a9cfead74ee4e9f238266f99

SHA256
bc1be53076cbf26f5802566997d784d6e5b986f89d0917e88f087e0e1bfd1964

SHA512
c9d2d8eebf5bfa21b7c97a3781e3e8fe8b086ff00edc7c0aa05135b0c7cb288e4a1d86da492407c70137fb4b0e5315390efcc4bfb258d25bf5dbbab55ab81132

Download Submit
/data/data/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
560ee2c6e3dbc070baa606fe467b0698

SHA1
f01ef3f813b7649207a548f20327c7025a605339

SHA256
07affa7ad3811bce23b558ff9e20136645805b73499f632062d32f097c7af071

SHA512
d34cb8a886a2173376149ac29c2c289f199e8d56bc4291a94d815c01fdb8b19c041356262f9bb2be1367f90b3b68b8305c9efa93c92a056597c1dcccc126178e

Download Submit
/data/user/0/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json

Filesize
1.5MB

MD5
ed608d6e34dcec71e5b3bd6baefd85e7

SHA1
20ec31a5a751c6fad20a63005f47e795182dec65

SHA256
00f87cfb7ca591322dfd746ac63cfbb296f3c58a628d4bdd1d598ed3347dec59

SHA512
98ad1aae54e086e8a1b98ec0ecb5291400aad1ae6a6b7edca63dc87482a5265d3e94318aea9c004336f0426eaad2219cacac0bd31dbd14972b99d3045b2af5ca

Download Submit
/data/user/0/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json

Filesize
1.5MB

MD5
d11f7a0dd138c705e1bd458110f1807c

SHA1
b4975d819f8607b395032de8cac736a019a73ce8

SHA256
591e97ad31cd0b2bd33092b563b4d92fee08d56debcf6bc1df88735c79bc71ed

SHA512
3a91ff6f50fcb51baae8d93244bf5dd5ff281e1f9312f5cf353c199a20c41df8fb64078f00e169b3517caadca116c3dfbf3eaa23af3f1ae65c77a676f10ef210

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads