hook | 26db08ef808409eb973a698d26ac83d99f46c8aa7fa35c96bf8140fd94cb2ca1

Analysis

max time kernel
149s
max time network
157s
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
09-01-2025 16:13

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General

Target

decrypted_2587456092053789685.tmp.apk
Size

4.5MB
MD5

49a7fb554e1a92d6d1b071664346ace7
SHA1

09fe4fd712ad83941e7cf6afc2468c30de59cf4e
SHA256

26db08ef808409eb973a698d26ac83d99f46c8aa7fa35c96bf8140fd94cb2ca1
SHA512

35a610afad18e758b548fe107ae4b306aef08aa2f9c06d5c3501365b85c8880ceb7be0cec9d13d5bbffd28957c67c2ffa1e00ae883f7ff67a3ccedfaee456b72
SSDEEP

98304:rUT1biIJ4atOtQ7YBMEGFQXKZ02/a1t6nGGwGrpji8qTueB:QT1p1wB0QXKv/a3i9rNWTuw

Score

10^/10

hook collection credential_access discovery evasion execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

hook

http://lankfnajasdfzcvvxzxcrrtfas.pro; http://lankfnajasdfasdfcxcescgt.pro; http://lankfnajasdfdsfngaaslsss.pro; http://lankfnajasdfanbabwqeda.pro; http://lankfnajasdfasnbadsfaaa.pro

http://lankfnajasdfzcvvxzxcrrtfas.pro

http://lankfnajasdfasdfcxcescgt.pro

http://lankfnajasdfdsfngaaslsss.pro

http://lankfnajasdfanbabwqeda.pro

http://lankfnajasdfasnbadsfaaa.pro

DES_key

AES_key

Signatures

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.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex	4465	com.mkjvmvrwu.uwknrkfyg
/data/user/0/com.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex	4465	com.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.mkjvmvrwu.uwknrkfyg
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mkjvmvrwu.uwknrkfyg
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mkjvmvrwu.uwknrkfyg
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mkjvmvrwu.uwknrkfyg
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

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.mkjvmvrwu.uwknrkfyg

com.mkjvmvrwu.uwknrkfyg
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
- 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:4465

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

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.mkjvmvrwu.uwknrkfyg/app_dex/classes.dex

Filesize
2.1MB

MD5
6a9f10ce16936f5a788caecc4acc528a

SHA1
9a3843da361fde32d1f75e3499f9ba53c2dc527d

SHA256
a9641733758c72633c3cad270795b2a14ba15eeeb1a24c4c6854d98eff20ba99

SHA512
850dc528e2ed0f77d02ca6987f3e3f266c9942d90d6681db220b58d7f00836d39eefaf24277dbde394daa18c3db4d003b5ab84f63531415dcd402d33ae97106f

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/cache/classes.dex

Filesize
984KB

MD5
09c1f9b2a250de233cb0aaeb1243a1c6

SHA1
08a4cba0bad96b0666959bbb26f0d3efe43cb4bb

SHA256
7e59131c913b569f58202babb0f33eba0838f3a1c4745c3d219dbf5c49399391

SHA512
0a1d1e717c98ce44163b3eab601b1572c9efea35de4dbba92ee961331b10985c8a7ab9169dcfbdb75283c39271ff46779cb2870fa80ded1ffb7671293554a9da

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/cache/classes.zip

Filesize
985KB

MD5
6b94e809192aedd113b81f9c95ee6305

SHA1
3f9aed7ab69f0da2a1bb00cd13cd8a4285694add

SHA256
1a274231171f58e109492c2652fda9d9e1662cbdd64fd6f8bff0395c1240edac

SHA512
d46c4ad17f7e55294d0edd340396fb5c17f9ff0d2230ce198b161e56706572fd4a6930b59efe091d600a3d6eced37cd68528a2a2c00255ccd278367a814a88b5

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
b56028317f75c925a106bcde6aa1f28a

SHA1
d3bc51eb10fd21083771716e31e60ddb9d17d9e0

SHA256
3bafb2a6ea60527d52e60fd0d5a31ef6375fde08b4217e4b436a5cbee36cec04

SHA512
126b9f52bfc0a288341ef9625f2517dd81587276de28e16ff15ff6c8c7f5d69ecd66585a98b47394038cc52400299d3bdd3a52a674eb827c05e20b6bfe74db6a

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
6d0d11a01d2f9c7f72ffb3e4c3210c2b

SHA1
4c42a119eca534f63aa7b4cd4355bfd603a6b77c

SHA256
e5a81b88da3353b3f20fd780509e4060baac6d68fe8c98af86169d45f773d4d7

SHA512
e7da0ad997a4a3ec83cc49fb491cf0924c4ce2c95a84ba6b76dbdd852238be0e3ad8dece14b674de8fa2cf7b6152bb375c78447b311ac550f53266dbbabc2a27

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
9015d03ceb80169b175564a62f370980

SHA1
a72db7281a014cbeb6e65121658c5d662afc71ac

SHA256
38a44611f3009c178ea5335929676690873af01482e0fcbe1a8d9c5e93466f88

SHA512
059a99425723f56758efd0d49da52d3787caad4a77520c7f6bdb2dfee88e08ac0acb21b3b316a0b86a6b5f7780c0e601f841df8913a53d878a5a54be6d4ee1ac

Download Submit
/data/user/0/com.mkjvmvrwu.uwknrkfyg/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
b2ac88ec934cbf29f31fde4137fb7b30

SHA1
f1bc96edb66b3bc9d9b1a8c4fd5bd69fc9421461

SHA256
4382045c43092def55c467c8bb029f4ea21e31d7c7f2dd04302a242118d4c667

SHA512
be81a764d2a328afa86d91b0dc76f9ca3ecdf9150a288cff31ee1d81917eb7533d6a8f582751fb5cf53505215c21e2bf631aee633eee91f433778d3b47c8811a

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads