octo | f41834e0d8ec9e9d5f5d262eadb3d2059451e13b9eaee59d42c12b4510f59030 | Triage

Analysis

max time kernel
144s
max time network
150s
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
01-12-2024 22:01

Sharing

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General

Target

f41834e0d8ec9e9d5f5d262eadb3d2059451e13b9eaee59d42c12b4510f59030.apk
Size

2.4MB
MD5

e86dd68fe6a00e7ed14f96f9cde7ea1e
SHA1

7a1e5e72942cf542831d4b4b1221510dd6f03e47
SHA256

f41834e0d8ec9e9d5f5d262eadb3d2059451e13b9eaee59d42c12b4510f59030
SHA512

e9733d3d272eff58b44819dfde3baa043852c5f9f589c19f25bc130dbb0536e0f7d490ce244d7d51aeaa18e6012007bb36446c702f30f9e084182a8779c074fa
SSDEEP

49152:e46Z14E3rKfLGw5HZ7MZ+IBBX90zjY3RK+h0ZHrZgr92UK4x/jaothy:Yz3qZH5MZnXyj8jMHdgZ999jaoK

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

C2

https://hizliveguvenilirshop.com/MWZjODg0YjhhMWVi/

https://94b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d92146d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d92156d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://994b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64c9b41c459d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64535326c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

rc4.plain

Extracted

Family

octo

C2

https://hizliveguvenilirshop.com/MWZjODg0YjhhMWVi/

https://94b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d92146d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://694b64c9b41c17a229d92156d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://994b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64c9b41c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64c9b41c459d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

https://4394b64535326c17a229d921556d14a4ffd4.com/MWZjODg0YjhhMWVi/

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

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

Download New Code at Runtime

ioc	pid	Process
/data/user/0/com.busymovezk/cache/wgeyk	4257	com.busymovezk
/data/user/0/com.busymovezk/cache/wgeyk	4257	com.busymovezk

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

Screen Capture

Keylogging

GUI Input Capture

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.busymovezk
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.busymovezk

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.busymovezk

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

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.busymovezk

Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

Application may abuse the accessibility service to prevent their removal.

Prevent Application Removal

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

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

System Network Configuration Discovery

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.busymovezk

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

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

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

User Evasion

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

Requests modifying system settings. 1 IoCs

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.busymovezk

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

Broadcast Receivers

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.busymovezk

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Data Encrypted for Impact

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.busymovezk

com.busymovezk
1⤵
- 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).
- Requests modifying system settings.
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4257

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

Broadcast Receivers

Foreground Persistence

Privilege Escalation

Defense Evasion

Download New Code at Runtime

Foreground Persistence

Hide Artifacts

User Evasion

Impair Defenses

Prevent Application Removal

Input Injection

Credential Access

Access Notifications

Input Capture

GUI Input Capture

Keylogging

Discovery

Software Discovery

Security Software Discovery

System Network Configuration Discovery

Lateral Movement

Collection

Access Notifications

Input Capture

GUI Input Capture

Keylogging

Screen Capture

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

Input Injection

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.busymovezk/cache/oat/wgeyk.cur.prof

Filesize
545B

MD5
f6c9114aceae6ddffd58a81474179b54

SHA1
54da2c03c87a4c111b5a99caade509fc19e1962e

SHA256
096f7e6bb6f228bc7e27be21e1c5dafe3d5c2cbe93309894d8c475009bca4323

SHA512
8519dc5840693787b45da9ed81183660c65555a46c5cfc6aa423de9ba4dcc1bcde6cea813940507c8ff50d58a18f753296c3d3adf8743740a4eb1b208e9ff7ec

Download Submit
/data/data/com.busymovezk/cache/wgeyk

Filesize
2.3MB

MD5
c6063c4023e6a695fbeba37bc061486f

SHA1
f4f07c70f6c250d8b87f21ea08e2d28a0bcf38ca

SHA256
50953962ce33f7d3a37f2c32809cdf67308f5b5a79f56dfced6b115e22041880

SHA512
6956cf2485e48335a963a8ee7f29126b41000f12db95771961d552b7970586d78fb1443f7a33dce2cd686fcb12e5e77b939696b65553182425c0a9cd596ffd9d

Download Submit