ermac | 020a1731f996a6440e29344be68c25cc2238cc6fefbf1c63c1084d6300bb73d0

Analysis

max time kernel
149s
max time network
151s
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
01/03/2025, 22:06

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General

Target

020a1731f996a6440e29344be68c25cc2238cc6fefbf1c63c1084d6300bb73d0.apk
Size

3.0MB
MD5

a806c91bc15c6fa250f71b8b45528e1d
SHA1

f9e590ef456303f3ed9aafc3966a20e83a919384
SHA256

020a1731f996a6440e29344be68c25cc2238cc6fefbf1c63c1084d6300bb73d0
SHA512

a2065f004e619319a8d180eace8bd5efb4fc75e40f3c2863d2b57bdcfb44c1431611b5a9f98e7c2749590bb58c96420c04594247284fbdf29f6d27f816ac448a
SSDEEP

49152:XHkuzDKGRYY5pqHp+gsdT0+XC7mCjS0XJQ6TGz+bhYVAqaf8OpY7x+3bPK8lg/PY:XHkHYXdPCFXJFaCbLfDx3ZgH/YyB4CV0

Score

10^/10

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

Malware Config

Extracted

Family

ermac

http://176.123.168.62

AES_key

Extracted

Family

hook

http://176.123.168.62

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/4746-0.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.tencent.mm/app_DynamicOptDex/di.json	4746	com.tencent.mm

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.findAccessibilityNodeInfosByViewId	com.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.tencent.mm
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

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.tencent.mm

com.tencent.mm
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- 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 information about the current Wi-Fi connection
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4746

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

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Clipboard Data

T1414

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

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Input Injection

T1516

Replay Monitor

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Downloads

/data/user/0/com.tencent.mm/app_DynamicOptDex/di.json

Filesize
701KB

MD5
dd507df4888dbaad6c64d5b77b0beb7f

SHA1
dda6f5c082058beb9a60c70858af009a0f71a2d2

SHA256
60cd9fb5dfe86c5328e82d32a4a826a2c00400735ed9adeb15a34c1ace1e5f63

SHA512
d49c12ac5b789dbc684ea18c3afb73d9f583631c73f3497232cccf53040f04396b1ab33941901bce4d0eebefdb42fb750da5a7a7640d32c05a38ac039621d1d7

Download Submit
/data/user/0/com.tencent.mm/app_DynamicOptDex/di.json

Filesize
701KB

MD5
badc9eb139d9474cded9a53bbb8cac9d

SHA1
5a25dcc8b957c77f65932de8f0cfd056b6d1cff0

SHA256
1723cfc3c10e81e8d9d67a2eae25705c5896afdf3fb0b47210fc094030c6ab97

SHA512
5c26e3564822654e6623a788b3680f141b4334268836251de284503ebbf50eef4ab54d2fde0e44b72f6e9776c91350d143f62fab9c7eb79b78cbf12be60f7c62

Download Submit
/data/user/0/com.tencent.mm/app_DynamicOptDex/di.json

Filesize
1.5MB

MD5
7f60b07ed6592877ff7d6a081eebe253

SHA1
2005ba9cbb222e2d5fef82f91223d32c5bb1a71e

SHA256
841459c86ceed636626616bc027ead9721cdb9c015492802a925a2b0edf0a7c1

SHA512
d180fb35c7550d0952f9c6952093024b016d1dce47dc814414181f5f36ae020f7456fafbd46d101934bd2392e57e102435c6a3ad02ca5c29f301580a05712e4a

Download Submit
/data/user/0/com.tencent.mm/app_DynamicOptDex/oat/di.json.cur.prof

Filesize
3KB

MD5
c8604207bcddec4e766f90767f983ccb

SHA1
981f9d30bef7ab2a77182d1dee6d87787224c2a9

SHA256
4e5ad7dfbaa345eabb087c90b76e30f74f5e5c4f28fafbc7f175c7de3bde36d6

SHA512
3a716019a4767596a2615581babe69e659e4da08abd80b68cd1f0ad1b05325f69bfda579a217479d0dc1ee968d061871fa1e05a8fc2cef686d64d40a149aa339

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
0209ea4b42ec876972c3a2dc281dc8a3

SHA1
bd42943b33ba73efd4af8e13c35a246cae829861

SHA256
9e06526de6f23ae9ca4d7089392f7cecf8c52294b15af1678db4e5179e4602fa

SHA512
7d9393ef608f54f629c280ef3a17f44ef8ca04dd22bbbbc393b53ca764781cda0f3804f754be86e87ba978df2dcf8d2b51815c013075398148f188d66dbffef6

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
7b4376a48eccda116965c4ee3f99b3a9

SHA1
e18c8f30e189c7637348aa16cc3bcc13def41ead

SHA256
154a0b482d830081fec9fb26609a93aef37e0690b82a118e8909a14433441e9b

SHA512
ea18d8bf94355c0330d52de931e6d049344825557ed619a47af75ed50b6f17a5b8cf8c3d46eb6d5c4f324f1b159cb2a4ef5252b9cb38e51021dbc6c595d318ed

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
cc3f9cc682e0b58a53797a9de1989db8

SHA1
0d0578bcc18003920a35629e2dd652b38ed48127

SHA256
c1ab68afaeea43dcdcd5da91fcedc721f89a01a14d4247555e14e534eac3dd5d

SHA512
4569c83478c322f367991fd7c95100d636d206632c41730b41fec436647b575e40cc57fb6ab0a0861aa2e0b8214066f5de8715b41aed6f74cd882a5deeb7c837

Download Submit
/data/user/0/com.tencent.mm/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
aacd8b59d3aca1d153a5aa26275c31c0

SHA1
82d0fcdebc12d049aba6d15762bd1b4e0862d275

SHA256
50d8256d113438fc53ab78919e6d1a18bbcf8eff39e9af9968869e2c4401068d

SHA512
b2fdddd535108cf817b31db3de8d59aca152c32b6b18f164a1f73d7ee1805b7e96290b467e2079bb528de78a49c6e1161cbd0856adaf442e16a024879221f013

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads