octo | 20287210b895881c40325a049469fd24d2c7ee5ef85b88365373560d93c66ed6

Analysis

max time kernel
145s
max time network
148s
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
22-10-2024 09:03

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General

Target

base.apk
Size

565KB
MD5

76e4485c5843b9351337aa571b547a89
SHA1

8719a08fc2acab16ba4b1a8f1ae3d8f4a500a3fb
SHA256

20287210b895881c40325a049469fd24d2c7ee5ef85b88365373560d93c66ed6
SHA512

457a85063f2a25ab2e60dd2d56c3bfe1e67358c0af6da80829fc25ce809b046b579493b1cbc28f999f5763cbef9004ec4ac1aae238107a23619d44e8b66f6f22
SSDEEP

12288:XlPneXRi2ZYdJPodteXB/vxS8ASacqMwNkPQSIydRBk0zTL7o9Hp:XlPneXRuPodteX5xS8fazCYyZ16

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://94.156.253.20/NzNlMDMzYWExMzk1/

https://staris7542352r23.net/NzNlMDMzYWExMzk1/

https://staris6442352r23.net/NzNlMDMzYWExMzk1/

https://staris5342352r23.net/NzNlMDMzYWExMzk1/

https://staris4242352r23.net/NzNlMDMzYWExMzk1/

https://staris3142352r23.net/NzNlMDMzYWExMzk1/

rc4.plain

Extracted

Family

octo

https://94.156.253.20/NzNlMDMzYWExMzk1/

https://staris7542352r23.net/NzNlMDMzYWExMzk1/

https://staris6442352r23.net/NzNlMDMzYWExMzk1/

https://staris5342352r23.net/NzNlMDMzYWExMzk1/

https://staris4242352r23.net/NzNlMDMzYWExMzk1/

https://staris3142352r23.net/NzNlMDMzYWExMzk1/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat 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
4313	com.staroutra

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.staroutra/cache/bgbormjclb	4313	com.staroutra
/data/user/0/com.staroutra/cache/bgbormjclb	4313	com.staroutra

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

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.staroutra

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.staroutra

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.staroutra
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.staroutra

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.staroutra

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.staroutra

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.staroutra

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.staroutra

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.staroutra

com.staroutra
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:4313

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.staroutra/cache/bgbormjclb

Filesize
450KB

MD5
624242a4adcbab67562e5a5a8679b48c

SHA1
5a5f811d12980a914a3ba07f6d8b75f87dc8fe83

SHA256
42c328cb6baa61759f25454dddfc3f4ce2907009f07040efbca6a40374780457

SHA512
a7dde54382486211a1bab953e9ab60ee8031f47bd57c065950bc01cd161732cfee6628cc047b9339e84642b64136d8d7cabbb0ddcd62187006b8474d06b481e0

Download Submit
/data/data/com.staroutra/cache/oat/bgbormjclb.cur.prof

Filesize
555B

MD5
151aea459855ff21a073c7543e6fada2

SHA1
bd021564e80b8ce286d2b8dff4bd428e11f356fb

SHA256
281435ad45a6065a6b53802bf42282b64962024de9c7168c6ddde12744d9d2a6

SHA512
ff55a59f12f3dcc459ad7373328c1a8080f0feef4c1e11d2e4efb16d8ea77c3284de3fcc4d87fa94f376bcff4677819ac8aacc0e948b7f8ca3462f45358d90d3

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads