octo | b0e2f552a645109443f650b2c829bd3c20030c1291b63a9b58b8c419fbd4dba5

Analysis

max time kernel
149s
max time network
145s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
07-12-2024 15:45

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General

Target

Chrome.apk
Size

2.4MB
MD5

273e8b0b7ce82c0caa5a88b6d1d2001f
SHA1

878e5ca6d7ae43c4451c04a2aa86c45ca3eafea0
SHA256

b0e2f552a645109443f650b2c829bd3c20030c1291b63a9b58b8c419fbd4dba5
SHA512

2df7e2ab652e31429466ef96167efd452bcf898f8ccd07cb89c00762060b873ba3402796657ed9b21cd7c5e854149dc57ba8281abc034d7f34ea23c5b42ae7b6
SSDEEP

49152:CRzMQJ8wIbQmAHM0FJOd6lJu+wGqvs6PnR0rlSMI1Fdy8ZOu1:2d8lQmALFJOLVdnCS71Fdy8ZOu1

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://332137453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://34437453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://3637453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://8237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://62333981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://6255553981d0595033c23.com/N2IzYzFlOTM3MWU3/

rc4.plain

Extracted

Family

octo

https://332137453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://34437453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://3637453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://8237453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://62333981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://6255553981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://934437453981d0595033c23.com/N2IzYzFlOTM3MWU3/

https://7894437453981d0595033c23.xyz/N2IzYzFlOTM3MWU3/

https://8774437453981d0595033c23.xyz/N2IzYzFlOTM3MWU3/

https://5564237453981d0595033c23.xyz/N2IzYzFlOTM3MWU3/

https://661544537453981d0595033c23.xyz/N2IzYzFlOTM3MWU3/

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.readyperhaps41/cache/lppdgqoqpzmi	5066	com.readyperhaps41
/data/user/0/com.readyperhaps41/cache/lppdgqoqpzmi	5066	com.readyperhaps41

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.findAccessibilityNodeInfosByViewId	com.readyperhaps41
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.readyperhaps41

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.readyperhaps41

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.readyperhaps41

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.readyperhaps41
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.readyperhaps41
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.readyperhaps41
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.readyperhaps41

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.readyperhaps41

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.readyperhaps41

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.readyperhaps41

com.readyperhaps41
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:5066

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.readyperhaps41/cache/lppdgqoqpzmi

Filesize
2.3MB

MD5
741cc04e3ba451742253228124ba3bae

SHA1
a92da6825617d7a79e7476a2478955e77ffd087c

SHA256
ae70f1461479817447fdc71f7b37bd74f8059263865e4d19db0e7a05855aa375

SHA512
72f96fa3d4363a4868a68b2089c1cc5a4984eee156cbb4cf732b81367628090e2ffecc403894c6a68cad6cd6b14212808be11d794bfbbea3c9a292e33530db43

Download Submit
/data/data/com.readyperhaps41/cache/oat/lppdgqoqpzmi.cur.prof

Filesize
506B

MD5
6bd3c72f50973e86a3920adad1f0a498

SHA1
241ecd03b5a215a390d2a6986813006abdb20078

SHA256
1ba557f9b915bd6b41850f0db95aaae839fb46387e77cb096e74131e17c09d48

SHA512
82bc058d8c0ba7f3b9b9815ba9779645fb83f3e997e76de5317d6a27a25db1a5b7a8d332c9847a4e5fec345261e07712c6f90572a733b003e2cb52336e715e3e

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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