hook | 4f181b3a42657a4c18a898d84108f7500baf243a2ac710adec1c5938cf0adb57

Analysis

max time kernel
149s
max time network
134s
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
09-02-2025 02:23

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General

Target

4f181b3a42657a4c18a898d84108f7500baf243a2ac710adec1c5938cf0adb57.apk
Size

2.2MB
MD5

a5fd3c1e089914a69a62086dca829bf0
SHA1

eae7b8cce8d1718c75098aeeecf1aa0ca3f35c38
SHA256

4f181b3a42657a4c18a898d84108f7500baf243a2ac710adec1c5938cf0adb57
SHA512

b0cf7bad8a6709c63d7173779b38f51459111ba2af2e923b859575b7d09902a3db6aee2b555bdff863d9d7f2b212afed88af9efdabbd95834df615d6d4fa94c0
SSDEEP

49152:Ig/weyrxOFxzXpyHnekeJPGRonx31oSGOcgB0K+kGH3JeilU:dFBX0neLJnxPmgsh3kilU

Score

10^/10

hook collection credential_access defense_evasion discovery execution impact infostealer persistence rat trojan

Malware Config

Extracted

Family

hook

rsa_pubkey

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.gayiwefahilumo.zufi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.gayiwefahilumo.zufi
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

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.gayiwefahilumo.zufi

com.gayiwefahilumo.zufi
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
- Queries the mobile country code (MCC)
- Schedules tasks to execute at a specified time
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4449

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

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.gayiwefahilumo.zufi/no_backup/androidx.work.workdb

Filesize
4KB

MD5
7e858c4054eb00fcddc653a04e5cd1c6

SHA1
2e056bf31a8d78df136f02a62afeeca77f4faccf

SHA256
9010186c5c083155a45673017d1e31c2a178e63cc15a57bbffde4d1956a23dad

SHA512
d0c7a120940c8e637d5566ef179d01eff88a2c2650afda69ad2a46aad76533eaace192028bba3d60407b4e34a950e7560f95d9f9b8eebe361ef62897d88b30cb

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
71437c4be21b663494feaf45799faa78

SHA1
1d24b744be97363181762b9f0dd4ce2b8af0c09b

SHA256
97f6539195c6324c036991949df064c5e722b3b0feb62f60a6b3eb764d23dd92

SHA512
9d9c1641031622daa7c80657db9545de38dae3d546c9100027d1d9dd2ac98514a02445c0779e42d4ff47ae94020b893405e5c11bfd0f6ca35026558d3bd5ba81

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
53275c4d36d9a3cbcf2bd6ccd4d67d05

SHA1
3fc9a65a77fb9ba5769d6c102e133342957ef43b

SHA256
8cabb15a2cea91b484c0dd1578cbc51fc17b27e4e87478ee38fb76c4608e465b

SHA512
f6eb1f9875a8588d31dfb954825ffed4b53a682bf777202fa5066972c1bf556c3f9f21ecc2e89ca9a033019c48046ab376d69b1d7e24e3b33340fbaae5c738db

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
b33fa0562e0e347d2fc042db715bc355

SHA1
421544bdc5fa6d8cbdfab3a1f814759a69b33f03

SHA256
dd180e142b2c651d132897334e48e3f1d4bc403416d10b47cc43d02f7a3d2669

SHA512
594d9fc5e5bc542df9529d1e3bb92ee3dba8233637a5b3fbf6ebc3e3e9b9a3faa18a596c2ead62648f4353420dca55eed9121d23678a32d70430e4b5e5851971

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
85c05ce7816c319db57766bfe7cda1fa

SHA1
aa0e47fa2b88c8fa05bf8574f9c99b543a663250

SHA256
58a7f62b07c920ba1a55c54084c600eed67fec8a5ab1bf3f87734d763dfd5581

SHA512
188f3912311765aa5bb3e4d71f98df030d8fade19f14c085ff975e1f5c8443a813d944d011bf9f521d41657b30b2b579ff8b56b4b1fd92518d90b57a389791d8

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫

Filesize
470KB

MD5
134de665d39b4527512663d932f8cc5a

SHA1
e766f22312bfca5cedff5acde6d5f0b615dc6c94

SHA256
68c6851390460770389d1a797e2d1f4509af50f8117ea2f2925473c56a6e94f2

SHA512
0d5fb6778c2b935b0227beb882d03f0da24e3a3839743df5fa09180a9f5659235e4a63802cb35dea45dcff5702e3810109d3b9bcee6ff82c6ad8a84942c4c54d

Download Submit
/data/user/0/com.gayiwefahilumo.zufi/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫/ۦۖ۫.

Filesize
8B

MD5
f798e1b1154bfcef79d29b1eb9d44292

SHA1
b31b2b9c54d8499f00490233d90e7ea30dbcddb2

SHA256
bf0db525b83c9d6eed76c01a61c69f10ac5aba7a7bb9a999a03c434ab7b65b5a

SHA512
409cbbcf958a02f8b6e2daf9d81bfe250837b6ec3f6aee36427979d43646559d8c3a6487f81bcf42d6ff59bd40d4d3e67ebde4cb226445c1052221cda0a719f2

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads