hook | 7c7fa2ed6d79e732b31646fb76b14d18460205d5088534f692e6c75f640da826

General

Target

7c7fa2ed6d79e732b31646fb76b14d18460205d5088534f692e6c75f640da826.apk
Size

1.5MB
MD5

8382652688aa9f8f02f931bf1dd45ca9
SHA1

d920ab476cb99b3b669393763e9f869678f7e321
SHA256

7c7fa2ed6d79e732b31646fb76b14d18460205d5088534f692e6c75f640da826
SHA512

7cdb8585eb4b6c341c17db3d07f79959ffd5174faeda9874e7e46517345955b0a5db519b64af49b4a4397e07d9dca49702c7eced551e254ce7f63a6f0b8bfaf3
SSDEEP

24576:JaY36zGo1gqYivgZeTqYJe3edzjcwK71EDeBPTLcs+Gq1kK/mXgRKmGzgdl:JaqsgqYvZCkedn+71ESBPEsLqXjhdl

Score

10^/10

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

Malware Config

Extracted

Family

hook

C2

http://91.92.251.148

AES_key

Signatures

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

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

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001
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.

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

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.tencent.mm

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.tencent.mm

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⤵
- Makes use of the framework's Accessibility service
- 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:4178

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1

T1603

Persistence

Event Triggered Execution

1

T1624

Broadcast Receivers

1

T1624.001

Foreground Persistence

Scheduled Task/Job

Privilege Escalation

Defense Evasion

Foreground Persistence

Input Injection

Virtualization/Sandbox Evasion

2

T1633

System Checks

2

T1633.001

Credential Access

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

1

T1417.001

Discovery

Software Discovery

1

T1418

Security Software Discovery

1

T1418.001

System Information Discovery

2

T1426

System Network Configuration Discovery

3

T1422

System Network Connections Discovery

1

T1421

Lateral Movement

Collection

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

Screen Capture

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

Input Injection

Replay Monitor

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Downloads

/data/data/com.tencent.mm/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

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

Filesize
512B

MD5
62e5f33ed83e6fe265d4b6f46eb9456c

SHA1
ee130bd48cb2902fc05e96d12abc9e81a6ead6bc

SHA256
63f6f2ce9e9697cae18e7d447f6f7f5a8c24dc91a58f3bc98c208ea05a3366b0

SHA512
2589695f6c79e4906c717b911ef376a0957967cb66607fad0a61158ca0204b1830910b0e4622e3d2bdb46e029b01d98d7fd2775d446dece0d7dad3dc980289a3

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

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

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

Filesize
16KB

MD5
08cadb75a18e5ebf7a30822c52c887e0

SHA1
b8540b52bc59c95e4468d86226dc47eb8bc4d5e3

SHA256
a244a75f40416e21f91c0d162d3ded2a7bf33c2d572a59c6707319961ccc8798

SHA512
7eefb22849afc1361518cfb687b3a50fd6ddc62dc300c533fbb70cdba830f0b8166fc0ed66102470ac35c2cbf79166560fc0334acfc9e11761c935c115f8e65c

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

Filesize
112KB

MD5
51496913db08959d1c853acf2f963ef0

SHA1
584b6a8a4008a4ae27ebb922ac39a15c02424d77

SHA256
3ca14c332d21d491831c52c8382af4a1eb22fd9d75b9a2eaf47e1a1f1cb09b14

SHA512
092e93d5e0662000ea9b6475c64c51410921b0fbbcfb636a17d742a1e3d5a2e615036dffaeae0ba52f8c5b37f2b0a51e20b0770373abbfc6ec9096b39d39101e

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

Filesize
185KB

MD5
77a00f321f4e8e8af80513ca308a258b

SHA1
476f9f3f11d5f4b0aa56ce746fb348bb2c36a473

SHA256
9b8facfdb73e38a58e536ac24883c691ff8d1ca56ac40212797eb9084ee20986

SHA512
36fc50e778d719fd65f6d8e9604bb687899e4fcd594e17ba20efddc3f18b581eeb122448531341791c5985cf80df7472095565b22595b31913b1944d9722c71c

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads