hook | f4aa091e7ad26030573b337504f629bb23a183ad9e229d1c0d49f3452db6e9af

Analysis

max time kernel
145s
max time network
133s
platform
android_x64
resource
android-x64-arm64-20240624-en
resource tags

androidarch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240624-enlocale:en-usos:android-11-x64system
submitted
10-09-2024 22:23

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General

Target

f4aa091e7ad26030573b337504f629bb23a183ad9e229d1c0d49f3452db6e9af.apk
Size

4.3MB
MD5

e4db988325d5cd27732c83de97dc3ca0
SHA1

748580afb97646a453f81c4c05ffdb8111b9fb0a
SHA256

f4aa091e7ad26030573b337504f629bb23a183ad9e229d1c0d49f3452db6e9af
SHA512

6031e1857c2b4c0b8df05d229f89bd1ac67dc7989880cef23ed2ae944d2de4f2802f5f06cc55a0cdf2e862bc5fbeaadd9e3074378a04b0ca372885f2e8da6f8b
SSDEEP

98304:4Ia66C3aiYw7VGLJUXbtfF4gdAyEIvki6bTHz33CcbRjM393Om/l:4Ia66C3aiYw7QLgFVfq1zHzbNM4mt

Score

10^/10

hook collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

hook

http://vbh1hfye1gf.live

http://nb2hgj2ui.pro

http://ssd3ffg3rrt.xyz

http://xsd4rfv4tre.xyz

http://xcv5vcx5rty.live

http://vfgt6re6tghj.xyz

DES_key

AES_key

Signatures

Hook
Hook is an Android malware that is based on Ermac with RAT capabilities.
rat trojan infostealer 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.brtqygziv.kfnjmzbqo/app_dex/classes.dex	4446	com.brtqygziv.kfnjmzbqo
/data/user/0/com.brtqygziv.kfnjmzbqo/app_dex/classes.dex	4446	com.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.brtqygziv.kfnjmzbqo
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.brtqygziv.kfnjmzbqo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.brtqygziv.kfnjmzbqo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.brtqygziv.kfnjmzbqo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.brtqygziv.kfnjmzbqo
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

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.brtqygziv.kfnjmzbqo

com.brtqygziv.kfnjmzbqo
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- 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:4446

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

Impair Defenses

T1629

Prevent Application Removal

T1629.001

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

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

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Downloads

/data/data/com.brtqygziv.kfnjmzbqo/app_dex/classes.dex

Filesize
2.1MB

MD5
25b17e4c71e728311192c092d1e52738

SHA1
709d42f2bec91b6ddbc2867345e17b023bef04d1

SHA256
e61d8d01d204bf3fa62abbc5dbe6354fa4a29f9957a465c3ec7a2ff454cc6c80

SHA512
3bdd193fa13901853b59bedc654c61d933121d5e4d5430b52cbfe347ebbc5cc0f79103bb1574c78ecf1ca6bb95720e3f8318ac8279b7f4c4f0ff19a1d81eae66

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/cache/classes.dex

Filesize
999KB

MD5
aa0d40ae41515ebf050afc1288656a9c

SHA1
568a8f2c0483ec701874de9f520669b4a3f34807

SHA256
9a1183abfc451cc6cd5c668b5264a3eb04685fd859ac2817d11b58983dbb2af3

SHA512
8c9262a849113862459a0c57ec85204de328a176d320f97663eadd5896b652473261c009e6f07a1c270a093cace18f47a13bee5bd11551c781c404e41f2cfc31

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/cache/classes.zip

Filesize
999KB

MD5
2286fb4f7d4438b61b354733927b0f45

SHA1
ada391fcbc88bb5ebd58258504f6fcf92bc5b4a4

SHA256
d2f1ef6d1dee9c7729199ec4dfd4eb82600e2bfaa68a58705001bca6540f059c

SHA512
ee4b4619b34bcd33fc8c61aa66f5c7cb1f1f4ac02f4a831b3c286c0ebe75ccdc5552aac7aae9d5db613d3528801fb90c45b3490924b7ed8a140795aba0ffa3cb

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
08c9177dfc0f96ecb1e4d0186f55c386

SHA1
6ed950e4f97f5d10c506e5ebd9c52cb446f947e2

SHA256
28346621c02ee1f456f15f1841c3ebe84de908ac085bf705c71eaa98b09149d4

SHA512
78a3a195150b4311a7d265fa9443a7a48fa854e20160f58a036de32b823814fb26dc855240325f1dbada65665995db6c90853ba5afc69327f7a535283b8690f5

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
3c629fd802085dadd01bc5343f127b05

SHA1
13da89aee4ff143b45b931dc1549fcae0eef448c

SHA256
ddc674ba263aa7d07a59f7ecf828a9589f78410f1c6e46195d9c1d2664d28492

SHA512
945fb405266f870b371846dbde584ca41db190709d64f0beedd35065fd424284474d1ad6a95fcc50823b1974657a9c545e4d3bc7fc1e073a5aad31aaf3f428dd

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
f72fc3a448fceda1617a96b6a76572eb

SHA1
acffeb61ed1af135f2aa7c113e9966acd861c2bd

SHA256
d0f70fa9a33fa5930933bf55f4cf517ab6b1dfa6599477d2809bcf440bfb07e0

SHA512
a81744a6b00df492a244269e1a42a386b554bc2b7c07d4cc39f63b195253e58aba5fd3c7d7d823a9df6a8a8efaa5309e76e53fde4d10368419b22b53e2093374

Download Submit
/data/data/com.brtqygziv.kfnjmzbqo/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
62b61f2b60cd78c2892dbfe694462142

SHA1
33ff89e1c7ba816f7079d866b43bbba74c936c46

SHA256
11bf1980270b444a026869fb6ab03aaacd8b774e6498b514468dd733af7e12a4

SHA512
5c9b0001713ca05fa82363a6aa03ae774221ab7d9b184d145b72a9e6c76997a7f90974f851f69cf78f2c107e0ac7924ca4f0366b46f5604fca6b8396039233d3

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads