hook | be966b008996fca884ab269a1f843007a82f38e24511c52ed63a3e69ac5deb8a

General

Target

be966b008996fca884ab269a1f843007a82f38e24511c52ed63a3e69ac5deb8a.apk
Size

1.1MB
MD5

5aa447ebaab3b41a4882cb0ac6702a19
SHA1

2099fa70fdaa308562b0a20890e5e0f0d590960b
SHA256

be966b008996fca884ab269a1f843007a82f38e24511c52ed63a3e69ac5deb8a
SHA512

183a8cae6ae7bdd1a3d22097a8d761880215cc43f291f380d8c6588f7c91c70807d585f9b5c955a0d13155bb2fea61709cfed5add7b7473c965be68dc5287a80
SSDEEP

24576:O/yauz49i54KJtkDhg2coT0zMGlY+U/ouykSg/szPY:O/Rj955UY5SYj/mkSg/qY

Score

10^/10

hook collection credential_access defense_evasion discovery execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

hook

AES_key

Signatures

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

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.findAccessibilityNodeInfoByAccessibilityId	com.vutuzaxejizi.kolehu
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.vutuzaxejizi.kolehu
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

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.vutuzaxejizi.kolehu

com.vutuzaxejizi.kolehu
1⤵
- 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:4798

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Scheduled Task/Job

1

T1603

Persistence

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

Clipboard Data

1

T1414

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

1

T1417.001

Discovery

Process Discovery

1

T1424

System Information Discovery

2

T1426

System Network Configuration Discovery

2

T1422

System Network Connections Discovery

1

T1421

Lateral Movement

Collection

Clipboard Data

1

T1414

Input Capture

2

T1417

GUI Input Capture

1

T1417.002

Keylogging

Screen Capture

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

1

T1471

Data Manipulation

1

T1641

Transmitted Data Manipulation

Input Injection

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Downloads

/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
955c4d94c5285dd152470cfd7b4eea21

SHA1
0b480973aa0bc84eb07d7f57c83dc003b1e4738f

SHA256
5ef2db4cf12838b3bc9fbf9ccdd5cc58691b464c4ba69333860afc4a1ccf1ec5

SHA512
edb1e21646c97f3d389ac265de0b431278a37e0920bbadaca8e45407dd57b8d67b5bf51c7d2e797ccc11fb768a688a417e0e9a67979ef0951dc8efb00b7e7ea9

Download Submit
/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
d1d2f7f5bd78e10bf9c27a3cbd467498

SHA1
7d87778d66f8e9838df09b32f0db67a782952a22

SHA256
0933b99d4e757e747a286cbee9b27e95af279f5d3b8ceca4a505490078095363

SHA512
a7901910cbb95803afb38628a82dd436baaf4efd68602c6462e79fb2c0a50e1f6c149d85e8cd2c13e0ce265fb1ef0b6fc79927b01626be889edb5cb9e69b6108

Download Submit
/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
0112a7ae246a4ba3289d121c13345453

SHA1
d9eb99984c566943134f581ba70e4bf827c34daf

SHA256
fe8d2ac45f166cf5b694cf7265e669f1eab57eec7b63d85194e1132567a0992b

SHA512
d74075a17cda98456f30b9b314a6ad890727364030d11ce567bc620513ab8830f000bf38d5914cf228ff0a6793b2b40587f1cd4452f29c6efa560864a388658d

Download Submit
/data/user/0/com.vutuzaxejizi.kolehu/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
633de3ed267d49f84002434149aa02ec

SHA1
95d975f798e51910245b20d15ec7343814f23ca5

SHA256
7b7c540da9fc23fb6c6d9d210a232288e6a8b595c5192e1c05db8e8da577742d

SHA512
234fe271a2d54c856743604d3a40a96ec061f22eedb360fe24e6ff6163090753ef24c0f1da4f6e318ca9034e93809efd4c1b058ef6d787ef1647e7b13c468b73

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads