octo | 55ce04247cd98362cfd010a76c32b61c97ef62b5e6c76ba9b44a2abd24e210d5

Analysis

max time kernel
148s
max time network
131s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
12/11/2024, 22:18

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General

Target

55ce04247cd98362cfd010a76c32b61c97ef62b5e6c76ba9b44a2abd24e210d5.apk
Size

561KB
MD5

b59827e8e7b0528b67ee38d9c4b82a17
SHA1

4fb4b52c1d58a7a109518395273876772f773ed5
SHA256

55ce04247cd98362cfd010a76c32b61c97ef62b5e6c76ba9b44a2abd24e210d5
SHA512

70b0026865b94799b0c538c6f9188e20fab7de311e96495eccf49554dafc3b75d42e1d47606b0a5098ef572f30fcbbb672097969b501712fc27486f3dc0400a4
SSDEEP

12288:rv2cZPmBcqy5yFcdsntn7caFgywOegGLWLtpiWthiHQJb2yjMZ2Fn3:rv2cZPmBcEZB7c1ywOe5L2iYb2SLn3

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan

Malware Config

Extracted

Family

octo

https://hepsinezipala4esdim52.com/YzM1YThkNDFkNmQ0/

https://hersenbo67saaaeldai548.com/YzM1YThkNDFkNmQ0/

https://alayinag45idaesaesr5454.com/YzM1YThkNDFkNmQ0/

https://neadamsin45mdeaayaq.com/YzM1YThkNDFkNmQ0/

https://hepsi010malltim21.com/YzM1YThkNDFkNmQ0/

rc4.plain

Extracted

Family

octo

https://hepsinezipala4esdim52.com/YzM1YThkNDFkNmQ0/

https://hersenbo67saaaeldai548.com/YzM1YThkNDFkNmQ0/

https://alayinag45idaesaesr5454.com/YzM1YThkNDFkNmQ0/

https://neadamsin45mdeaayaq.com/YzM1YThkNDFkNmQ0/

https://hepsi010malltim21.com/YzM1YThkNDFkNmQ0/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat octo
Octo family
octo

Octo payload 1 IoCs

resource	yara_rule
behavioral1/files/fstream-1.dat	family_octo

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4222	com.nevercountry4

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.nevercountry4/cache/ymhhmpclesoc	4222	com.nevercountry4
/data/user/0/com.nevercountry4/cache/ymhhmpclesoc	4222	com.nevercountry4

Makes use of the framework's Accessibility service 4 TTPs 2 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.nevercountry4
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.nevercountry4

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps) 1 TTPs
banker discovery

Security Software Discovery
T1418.001
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.nevercountry4

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.nevercountry4

Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nevercountry4
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.nevercountry4

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.nevercountry4

Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
discovery

System Network Configuration Discovery
T1422
Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

Requests accessing notifications (often used to intercept notifications before users become aware). 1 TTPs 1 IoCs

collection credential_access

Access Notifications

T1517

description	ioc	Process
Intent action	android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS	com.nevercountry4

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

evasion

User Evasion

T1628.002

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.nevercountry4

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.nevercountry4

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.nevercountry4

com.nevercountry4
1⤵
- Removes its main activity from the application launcher
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Performs UI accessibility actions on behalf of the user
- Queries the mobile country code (MCC)
- Requests accessing notifications (often used to intercept notifications before users become aware).
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4222

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

T1624

Broadcast Receivers

T1624.001

Foreground Persistence

T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

User Evasion

T1628.002

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

Access Notifications

T1517

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Software Discovery

T1418

Security Software Discovery

T1418.001

System Network Configuration Discovery

T1422

Lateral Movement

Collection

Access Notifications

T1517

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Input Injection

T1516

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Downloads

/data/data/com.nevercountry4/cache/oat/ymhhmpclesoc.cur.prof

Filesize
558B

MD5
035a1ab51fe49a5135b07755f663ccfe

SHA1
f6e93188298e43fcc89681d72d355233889a8b75

SHA256
4d2d6884886c261a3cc321c596cc907a095652b6013757ea59bea5c1bd83dd9c

SHA512
e17e7d2c154de224b5332e366436474b6e729b21f151c90e2d05362383f33b89036d6304577d1cf5939d1b6342221a75417cc50c946bd53f24d7f98e1f397f69

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/data/data/com.nevercountry4/cache/ymhhmpclesoc

Filesize
449KB

MD5
e89fb3a2fd931b06f8f03d8d3f0e492c

SHA1
258e4fba62ae7e8f043d25467230e93cf613bb8a

SHA256
6255c507a1aa5b0711967ba75bcdac4cef4b2feb3a23f050f12944bec6396d6c

SHA512
b62ea041810b3361d42cabd7c8c7337423d792caf9d86e9d80c7c4325967a6c3ece64a5bfa764c1d674f557e46496ae6f58d1f884cc6784de809735075975968

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads