octo | 4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604

Analysis

max time kernel
148s
max time network
153s
platform
android-13_x64
resource
android-33-x64-arm64-20240910-en
resource tags

arch:arm64arch:x64arch:x86image:android-33-x64-arm64-20240910-enlocale:en-usos:android-13-x64system
submitted
17-11-2024 22:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604.apk
Size

2.4MB
MD5

f21675d780257fe04690660551c7cfbb
SHA1

55fab5f882c431e2b4bc0bb650afc00a2325d1bc
SHA256

4e8da6bab2b06c0394cb0e3ce6082d43b10d40a601fa11455ced6045c7916604
SHA512

49882c824bb882fd0d0acdf49f8bd40685b1a04626d267e6bb3a836cfa19e77259f8a3f76fd6cb9910aedf1be19b59fd34bb0dcc50e04ceb060e18d540705ecc
SSDEEP

49152:C9ydLD6xrmfVYZ61pCcCrBVDF5yQcOdyNJG+LGCBDz8o3PcWcPnBXfy:zkxqr0cCrTWxjKk5dzTcWcPnBa

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://malkafaniskm.com/NzY2NDZkZmViYjZj/

https://fukiyibartiyom2.com/NzY2NDZkZmViYjZj/

https://malkafali222.com/NzY2NDZkZmViYjZj/

https://oyunbaimlisi35.com/NzY2NDZkZmViYjZj/

https://mal1fukizmirli.com/NzY2NDZkZmViYjZj/

rc4.plain

Extracted

Family

octo

https://malkafaniskm.com/NzY2NDZkZmViYjZj/

https://fukiyibartiyom2.com/NzY2NDZkZmViYjZj/

https://malkafali222.com/NzY2NDZkZmViYjZj/

https://oyunbaimlisi35.com/NzY2NDZkZmViYjZj/

https://mal1fukizmirli.com/NzY2NDZkZmViYjZj/

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 1 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.decidesmall4/cache/ytooyiwkr	4483	com.decidesmall4

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.decidesmall4
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.decidesmall4

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.decidesmall4

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.decidesmall4

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.decidesmall4
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.decidesmall4
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.decidesmall4
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.decidesmall4

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.decidesmall4

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.decidesmall4

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.decidesmall4

Requests modifying system settings. 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.decidesmall4

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.decidesmall4

com.decidesmall4
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:4483

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.decidesmall4/cache/oat/ytooyiwkr.cur.prof

Filesize
430B

MD5
5dc1ecedbc4e11f5f78a9440243639cd

SHA1
45dcda89f8e1f271b4a45006cc4d94f07f4c7a36

SHA256
85a151de5f7c6ac18c00603ac351ed7934a91fb5d0f0a5ce31c053266e0539de

SHA512
11c894f407f9fa035197b8663447b9763c0a9aeda7003d57ed3f791b57620d84b198ab5d7ee42dab7dae57b22440ca6e29ba5b00e823816176209f6e5556485f

Download Submit
/data/data/com.decidesmall4/cache/ytooyiwkr

Filesize
2.3MB

MD5
54cf7b17aab3cd8a3a4d14975fae07ad

SHA1
24667586e78cb919fe0e1bf1ba818e0f857eb791

SHA256
585653b3bc676b696c28c4937a1678b5a84d0bae649f3110abd8b7853425f0ed

SHA512
9224a37044f3bb07c0e89317b8bd12222d807e6c968a9bff2658be8a20cdcbac911ba9453a409367fab48c4430d8f5469627488ced1f8837c4e0179a3b19ced5

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

Loading Replay Monitor...

Downloads