octo | 768ec256cf53dc2ca8c3b14d184825faebe3d1cef9ac102af02be23782ece64e

Analysis

max time kernel
143s
max time network
147s
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
04-01-2025 22:03

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General

Target

768ec256cf53dc2ca8c3b14d184825faebe3d1cef9ac102af02be23782ece64e.apk
Size

518KB
MD5

5eba8174763606c15f9d7b3c7f72c614
SHA1

f135ac7bc962a0a44d552e4ab1ca5dd4db70df90
SHA256

768ec256cf53dc2ca8c3b14d184825faebe3d1cef9ac102af02be23782ece64e
SHA512

463c2949b4bb85c4d05cdccb575c8318ddc7c05d71287b574c7090e20971011bf4263e450659bcc532328d36ed5e7c7ae773cc2526f9a5ea09a15e7ab4fb7699
SSDEEP

12288:SF9kDABhcTlizPDSEYBWTIjAr8OthPw3AV4zQNKzeCAniuqAEtSO4taw:0G9liLDSEQWJA6hPw3A8Acon8NtSO4td

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://91.92.244.80/CfK3ulGypS7Nns81/

https://rootocto.com.tr/CfK3ulGypS7Nns81/

https://toorocto.com.tr/CfK3ulGypS7Nns81/

rc4.plain

Extracted

Family

octo

https://91.92.244.80/CfK3ulGypS7Nns81/

https://rootocto.com.tr/CfK3ulGypS7Nns81/

https://toorocto.com.tr/CfK3ulGypS7Nns81/

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
4252	com.strongstarter

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.strongstarter/cache/fghuniysbetio	4252	com.strongstarter
/data/user/0/com.strongstarter/cache/fghuniysbetio	4252	com.strongstarter

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.strongstarter
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.strongstarter

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.strongstarter

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.strongstarter

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.strongstarter
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.strongstarter

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.strongstarter

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.strongstarter

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.strongstarter

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.strongstarter

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.strongstarter

com.strongstarter
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:4252

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

Replay Monitor

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Downloads

/data/data/com.strongstarter/cache/fghuniysbetio

Filesize
449KB

MD5
d186da8b689b455fc408414277e79714

SHA1
b96e399032ebf653ef68c831d582e02ab20f998f

SHA256
d1c021c86ba358743f0eb1deb289b9ee160fe1bc1582fc334d1c9fea76e896b9

SHA512
6628cb2c70804fe6f6fe841787c5853f494478a710a42548d7e089d7e7a4fc4753c5cc99033912c5e7b2223b416cb8a50bbd41e6d4bb3b1e86e39f04c4a636ea

Download Submit
/data/data/com.strongstarter/cache/oat/fghuniysbetio.cur.prof

Filesize
502B

MD5
1bfe0daf3bef267e7367279be63d3360

SHA1
c8c0b5a6ed2ed3bf9d2dc5921f8d164d80ce3742

SHA256
5d92aa2d41f96565218da807ffb024511fc2b7e86df380521ce1b32581c52858

SHA512
3f5433ff5bad9c16b4829800041ec2a1a8d3e427a39c644a63218e0d5f6b858d711d8b5c60c0d08c24c06587913308d38c4d8f8c7d629870e17b7851b015c566

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads