octo | 19588f7d204c8d08b417113f564419f25cdce2200478a43ceae97eaf43d8c80e

Analysis

max time kernel
148s
max time network
156s
platform
android-10_x64
resource
android-x64-20240910-en
resource tags

arch:x64arch:x86image:android-x64-20240910-enlocale:en-usos:android-10-x64system
submitted
14-01-2025 22:05

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General

Target

19588f7d204c8d08b417113f564419f25cdce2200478a43ceae97eaf43d8c80e.apk
Size

2.4MB
MD5

fc18108129c5bddfda403636208174fe
SHA1

5d5b75e3b7d39625142932b3fe695b6331f47199
SHA256

19588f7d204c8d08b417113f564419f25cdce2200478a43ceae97eaf43d8c80e
SHA512

5300f482878d787c316233dec55178679b4af780a86d5e744fa291970422a45083b58e5469df10454fe2481c903470ac6625a98b8216372f4d8b1f1c0a450500
SSDEEP

49152:s5ZPeyUabIeOgUYBHwi/wRoOERs982jdG4SyD8spDpOwJ:s/eDZgdBHO5Ms982PSyD8spXJ

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://91.202.233.164/NzcxZWQ4MWEzZjRk/

https://694b64c9229d92124125w2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d921s23532adsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c99d921s3532sw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d9e2adsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c922153256dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d954362sw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229151312dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229135131dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d94663sw2.com/NzcxZWQ4MWEzZjRk/

rc4.plain

Extracted

Family

octo

https://91.202.233.164/NzcxZWQ4MWEzZjRk/

https://694b64c9229d92124125w2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d921s23532adsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c99d921s3532sw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d9e2adsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c922153256dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d954362sw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229151312dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229135131dsw2.com/NzcxZWQ4MWEzZjRk/

https://694b64c9229d94663sw2.com/NzcxZWQ4MWEzZjRk/

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
behavioral2/files/fstream-1.dat	family_octo

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.vowelstart21/cache/tsbpcdpbnkifwfr	5247	com.vowelstart21
/data/user/0/com.vowelstart21/cache/tsbpcdpbnkifwfr	5247	com.vowelstart21

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.vowelstart21
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.vowelstart21

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.vowelstart21

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.vowelstart21

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

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.vowelstart21
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.vowelstart21
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.vowelstart21
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.vowelstart21

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.vowelstart21

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.vowelstart21

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.vowelstart21

com.vowelstart21
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)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:5247

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

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

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

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.vowelstart21/cache/oat/tsbpcdpbnkifwfr.cur.prof

Filesize
500B

MD5
4c13dc76734f5ed8824ad6daed2dbb6a

SHA1
c52821003ebdace3884e118b87e7dfbff4a989dc

SHA256
caf78a055c43f4c5022031ab9feee864c5ba3867b4e70fe651ab8f2fc7eb8173

SHA512
0a174b434eb5b08cdd5b921e7a6b3757fc6e032efdd9def118dbf11804f1d1d5d1a294c3a09cc0a271ca1f92f41b2b65634f0a238ab50b666c3fcfd344d650bb

Download Submit
/data/data/com.vowelstart21/cache/tsbpcdpbnkifwfr

Filesize
2.3MB

MD5
92a0b427795b2672f524b8341fec6a42

SHA1
40ce3e90ea94dab25340cc98c82a6ad47b9e7dd4

SHA256
ef01bb6186a6cb286102731da5f55375013c28677780a77e858a8bb0c3686552

SHA512
f376b0bff51394f753e75d20aaf3ae39921fdc2fa0430b59a0931b52678f8270cf64a63655b6049732bbaefc50e1ed32881420c58759d0f7aa2e6f5a76150306

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads