octo | 084f914e395db72458eb2f1307c2c611894b93eb1b3648224e4618fa4db7e13b

Analysis

max time kernel
148s
max time network
151s
platform
android-11_x64
resource
android-x64-arm64-20240910-en
resource tags

arch:armarch:arm64arch:x64arch:x86image:android-x64-arm64-20240910-enlocale:en-usos:android-11-x64system
submitted
08-11-2024 22:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

084f914e395db72458eb2f1307c2c611894b93eb1b3648224e4618fa4db7e13b.apk
Size

509KB
MD5

4a793af5d8124ba12c76b0c2d3eb26df
SHA1

43d698a8c961a5ee46c6d4ca7dc3783a539a75ca
SHA256

084f914e395db72458eb2f1307c2c611894b93eb1b3648224e4618fa4db7e13b
SHA512

21b42093eb753868a11ff8da93dbcc9969c5fbd7820c056da019349ca7115c632e20883a5fc9f822b6dc720a29ead96e4d0d360b8ef567d6bf1e73e96e3ad40f
SSDEEP

12288:2RG/D/Xoejl5LF/rCO6Nz8uwxBaYXcyb5rme8Y9HAxIZnVA:QALj9jCpzFwxCyEe1HBZnVA

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://94.141.120.47/ZGZmNzZhNzQ1M2Iz/

https://marketingshops32.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops3.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops4.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops52.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops62.com/ZGZmNzZhNzQ1M2Iz/

rc4.plain

Extracted

Family

octo

https://94.141.120.47/ZGZmNzZhNzQ1M2Iz/

https://marketingshops32.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops3.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops4.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops52.com/ZGZmNzZhNzQ1M2Iz/

https://marketingshops62.com/ZGZmNzZhNzQ1M2Iz/

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.yearwere82/cache/kfajefkjo	4860	com.yearwere82
/data/user/0/com.yearwere82/cache/kfajefkjo	4860	com.yearwere82

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.yearwere82
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.yearwere82

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.yearwere82

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.yearwere82

Performs UI accessibility actions on behalf of the user 1 TTPs 5 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.yearwere82
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.yearwere82
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.yearwere82
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.yearwere82
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.yearwere82

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.yearwere82

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.yearwere82

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.yearwere82

Requests modifying system settings. 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.yearwere82

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.yearwere82

com.yearwere82
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.
- Uses Crypto APIs (Might try to encrypt user data)
PID:4860

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Foreground Persistence

T1541

Privilege Escalation

Defense Evasion

Download New Code at Runtime

T1407

Foreground Persistence

T1541

Hide Artifacts

T1628

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

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.yearwere82/cache/kfajefkjo

Filesize
449KB

MD5
9200ccd6eb142eceebc07bf16b6bafc7

SHA1
e0b6a846a39f5a8ba198148d4e7933a9b5fa2103

SHA256
5da3ae8065ad7a3f60fff14334769c4302853455b3c89a447b8b6c1e6d3f59e6

SHA512
3beb3ac86245f228ffa3fddd5b4fa1087d0a0825b28dd259b027ace78aba65679e74a3af3aa8a4e9c111a50aacdf242a6de6aa9ab042d13b952030ec25369035

Download Submit
/data/data/com.yearwere82/cache/oat/kfajefkjo.cur.prof

Filesize
316B

MD5
5c15310d2ada801c7a7f59ce41c78723

SHA1
b947c740327511e532157a250d062269a8e54c82

SHA256
12e668a8df8d381d152b9714dd5b4100bc4a5ea0f0e6e15e5ec8ec9ce35eae4f

SHA512
01547b4fab5e2249bcb6ad9104e6d5dd52d3ec17e58f02c8502fd50c82eb7bfd9c16a38d8581d3cbb909a64bcbc03fbf76d3aac3580f2829d3edeeb26c9edd07

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads