octo | 965f44a9ae6fcc59d0f76d7313d28e192a8e725264a3a662e578cbd4ba89f1aa | Triage

Analysis

max time kernel
144s
max time network
153s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
11-11-2024 22:00

Sharing

Report Analysis Logs

General

Target

965f44a9ae6fcc59d0f76d7313d28e192a8e725264a3a662e578cbd4ba89f1aa.apk
Size

2.4MB
MD5

79be8f3cd22de1b66f14f0d991b58739
SHA1

115d7a450393737e4f391b7f2dfa91bb4c48a266
SHA256

965f44a9ae6fcc59d0f76d7313d28e192a8e725264a3a662e578cbd4ba89f1aa
SHA512

6d712a122cbc6ec653b0c5228beee13a7fd9cf79cafcfca77bcd13403d185e2c161859c919aeb471054554ad39b43753112016113d18735664c9408ea190fd15
SSDEEP

49152:0Tdveyj7ktFhHvqfzZTmZIjhPhxPK9ZrKeLrzFV8ux6iIyVzfwhoEUKV27y9:S1Hk3hHvqLtbhPLP2KErzh2yVaZ

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

C2

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

rc4.plain

Extracted

Family

octo

C2

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

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.

Download New Code at Runtime

ioc	pid	Process
/data/user/0/com.partpicturecejs/cache/kvsqroch	4936	com.partpicturecejs
/data/user/0/com.partpicturecejs/cache/kvsqroch	4936	com.partpicturecejs

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

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.partpicturecejs

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.partpicturecejs

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.partpicturecejs
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.partpicturecejs
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.partpicturecejs
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.partpicturecejs

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.partpicturecejs

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

Broadcast Receivers

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

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.partpicturecejs

com.partpicturecejs
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:4936

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

Impair Defenses

Prevent Application Removal

Input Injection

Credential Access

Input Capture

GUI Input Capture

Keylogging

Discovery

Software Discovery

Security Software Discovery

System Network Configuration Discovery

Lateral Movement

Collection

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.partpicturecejs/cache/kvsqroch

Filesize
2.3MB

MD5
bc4776b6c9f58ddf48f37fc65433cbbe

SHA1
2946fbc27efb1839924c2ebcd16808280d267d31

SHA256
27803ef94ccb94d8cfdbd4d410edc07b1cdf2fd52544a97c1745ea2948959bfa

SHA512
4fe9e1675c207812f6c2a40b894a1b3dbd9dce3b9bfc7641fad2843168d82d7a01e6377d49b488bddb91d5567b33513e107ac2cbedf5d4d2452df3fb3adc6468

Download Submit
/data/data/com.partpicturecejs/cache/oat/kvsqroch.cur.prof

Filesize
513B

MD5
b32b1078b719a4edfe3c146225d40f1d

SHA1
f776f364be7e632c78b46accbc1687c1a209ceb6

SHA256
13f230e83f4fd2c12dfd4dc58f5163b9c7a38cb1187dd50ee1df3ec04185a1b7

SHA512
d89ebdde120dfdd62fafcbad0e3eb43bf9d3b5f95ad86a18a3b977d4bcc7e7a041b9db2f8fbff44dcaee185f9f023fefbcd2bd7de24ca2ca1099d3a9d9c1a5dd

Download Submit