hook | b1f06bd9f814003fa09639a32d0fca69a663abb7cc3aa19d4921696c627cbf29

General

Target

b1f06bd9f814003fa09639a32d0fca69a663abb7cc3aa19d4921696c627cbf29.apk
Size

2.9MB
MD5

8e8821b1cbde994a83d43a979455740d
SHA1

efb40a7561787007c29a10712d889eb7998e1a67
SHA256

b1f06bd9f814003fa09639a32d0fca69a663abb7cc3aa19d4921696c627cbf29
SHA512

d11ea3e5fa0be656a0910d43ce95391b1820bb0eee6f5fa4db5b21af90b08281204dee3050fc01c8f24678f81f5e91ba3d846d7e6a0a57e05f2f02fa22ea25e5
SSDEEP

49152:srC1YAVgW8O/a23ZOZF/XLdek+14DSNGMAPsxZeSsZgtg0h5MQdVQlHXg/x/:srC1LVgWO23ZYbn+14zMAEBby0rJdVQA

Score

10^/10

hook collection credential_access discovery evasion execution infostealer persistence rat trojan

Malware Config

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.tecisopojiyo.bikuro
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByText	com.tecisopojiyo.bikuro
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

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.tecisopojiyo.bikuro

com.tecisopojiyo.bikuro
1⤵
- Makes use of the framework's Accessibility service
- 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)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Schedules tasks to execute at a specified time
- Checks CPU information
- Checks memory information
PID:4374

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

Process Discovery

1

T1424

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

Input Injection

1

T1516

Replay Monitor

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Downloads

/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb

Filesize
4KB

MD5
f2b4b0190b9f384ca885f0c8c9b14700

SHA1
934ff2646757b5b6e7f20f6a0aa76c7f995d9361

SHA256
0a8ffb6b327963558716e87db8946016d143e39f895fa1b43e95ba7032ce2514

SHA512
ec12685fc0d60526eed4d38820aad95611f3e93ae372be5a57142d8e8a1ba17e6e5dfe381a4e1365dddc0b363c9c40daaffdc1245bd515fddac69bf1abacd7f1

Download Submit
/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb-journal

Filesize
512B

MD5
497225ead9a70f164a9701264d63291b

SHA1
7f7a5e9c9c3c83ce8104313f3eb9a367197a9ea3

SHA256
3ce62ae17e1793d326f57e384da8e468927e8472b10e69e45420061bdb3ce522

SHA512
9bdc275bca4d3d84d2e86869cfcc7eea7cee03db03c48dde566abe3e82db4dfd7ef187ca788a3324b36b298cb4577555f12269ada0be87608573767edd17dd10

Download Submit
/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb-shm

Filesize
32KB

MD5
bb7df04e1b0a2570657527a7e108ae23

SHA1
5188431849b4613152fd7bdba6a3ff0a4fd6424b

SHA256
c35020473aed1b4642cd726cad727b63fff2824ad68cedd7ffb73c7cbd890479

SHA512
768007e06b0cd9e62d50f458b9435c6dda0a6d272f0b15550f97c478394b743331c3a9c9236e09ab5b9cb3b423b2320a5d66eb3c7068db9ea37891ca40e47012

Download Submit
/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb-wal

Filesize
16KB

MD5
2fac41ea62b4356183acf139b27e93ef

SHA1
c9b72d9082f5a0b01a24175c0102263fadb5c6cd

SHA256
e6263f49cdee3b75b1054118b8b25b5a2aeced30749bea15a63589ab23b9b5c6

SHA512
3fe2beffd732af767c2a1b684c260522e8963b08ef3a495975d7509fb0198051b56a4d04454ccf9a82836e2c6d7b9a57de658d26e832f9a686ed0a584e080714

Download Submit
/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb-wal

Filesize
108KB

MD5
2b2076f568268ef6117c078512dd493a

SHA1
f78e377cdae522a387db91197c1ea8d31968835d

SHA256
f4332c6ef64a0aef1696770c40b358753233188742e2c9b248eee0d95d9985ed

SHA512
591c6eb5992ee878166939e34feb303d81e089c1ab807302edb90b0254b2413727b4ae1cf3c5926fc7f381809ee32252191d7ccacd3bf783324abc71af2b9c3d

Download Submit
/data/data/com.tecisopojiyo.bikuro/no_backup/androidx.work.workdb-wal

Filesize
173KB

MD5
6f59ccb4747a3b62f84752205665ebaf

SHA1
48546f7facc7ec5eb735f6dc3e711bb88c657931

SHA256
7e6cb3e62dd2ff05a11c8eeace69882ba36330e8c0a64362d12afde82ff7a93c

SHA512
4de4fd932afb987ec0ecba8da8d398ce7d8e7681cbde3507ed03c89ef6dd2282dc54c31da466e84c9830202b0759290f71477f826532daf1ff1211f12c10d45b

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads