ermac | 8f0eb9598f62d7fe2cfc3cba903b8eaa12c8b5c038fdbe44cb1eb6d534b8eefb

Analysis

max time kernel
143s
max time network
150s
platform
android-11_x64
resource
android-x64-arm64-20240910-en
resource tags

arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system
submitted
28-01-2025 22:04

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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 1 IoCs

resource	yara_rule
behavioral3/memory/4778-0.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.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json	4778	com.mogukepusotada.buma

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.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 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

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
- 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 the mobile country code (MCC)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4778

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

T1603

Persistence

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

System Information Discovery

T1426

System Network Configuration Discovery

T1422

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/user/0/com.mogukepusotada.buma/app_DynamicOptDex/jxiQy.json

Filesize
674KB

MD5
75057f108cb8b063e0f855d4d839430b

SHA1
81a05ad1885fd06af76f79553e0140c168e67757

SHA256
c77153cdc99b7ef7c3f3f0858166e3c11969a22f0070583ef03c9b09ca332841

SHA512
32ad37e6de4644a1a4251f89aa25ca535158848705a1621c342b281f2b3c6ee911b75365ba51f18efcd2fe1d4cb61368204aeddf9850abc67dbb0f025fba2cf4

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

Filesize
674KB

MD5
d41a795f597c022e5c1e8bf59b1a2981

SHA1
06eab40647796655b52159d6b117e849c14bb4a8

SHA256
5ee847df0a416af0ce18186b2e8b9cd34f1ae82746647db91002615f156c8d89

SHA512
517c0bffda9354d6833b50e60168a675e121a31d614827dd2dc675fb81248889020c4e02ae46622549a9094ad2ce3026b0ad89b8add7e1136a7ce1c49ca5faff

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
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
7f2192c4b80e6cfdb0ca39aec9767ee1

SHA1
f8438006faa3828dbc1915f05aac80845b574b8e

SHA256
b9d0862270e88eced2d9a951bcb2fa57423cc200cc64f2b0c2fc3483bf35c300

SHA512
65311319f380aa9c36d9b80e6008455c7d548714babe8e232b382cbd8911cd04bf64c7485e4adb36b3cda8e54cf0dd1a77ab74983f7501916715360bf833186b

Download Submit
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
e1169e4cdc01660ff886486496628542

SHA1
2b3224732a69588ef0bf904f7213c37597d830d4

SHA256
fa3b4a71d3b0881aa8e597b059cdaca9efd9ef323f77db19ddaaf031e0e3513f

SHA512
c3098d54b20a4af17a3387040b56772b197724b87cf0f02977d1e8afaa6878ed77a31759e5ef905a3ff888cd13aca42a6ef802c353d296445949316f8d424bdb

Download Submit
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
f8eb016ed30f8cde91166f3fd3345a2e

SHA1
1034a01fd1818f4f8b56efc79332416452b19ba2

SHA256
51cb3e1c50775100e853c7946fd71bc3514cd0323142e2fdf72502aeff0702b6

SHA512
87b6c30edf16845166a16b8d93242b6e9e8d30e548eee60f96353eff62c5f5639923513542e7c037b3c3f1cf16bdae1fd19e41d68013983030df6f1837d27baf

Download Submit
/data/user/0/com.mogukepusotada.buma/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
15da3c92cb708cdf59bf5a1e454503e5

SHA1
fcabca8f33623a379432bb1eaee613ac08e5f9ad

SHA256
897774a194707784a4898bf4e6de2303e681795f1390d5f54948c3103be54b24

SHA512
7ade6e0f258d734c1d8e669b8148dd54d134e9dbb7ce665df05cdcf2c5c7158840ba0395f9e82699c77ee9abc647e1cb741c990fda47af7c1c95fb32826bb337

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads