octo | fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7

Analysis

max time kernel
149s
max time network
150s
platform
android-9_x86
resource
android-x86-arm-20240910-en
resource tags

arch:armarch:x86image:android-x86-arm-20240910-enlocale:en-usos:android-9-x86system
submitted
15-10-2024 22:06

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General

Target

fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7.apk
Size

557KB
MD5

97cbc725974e038782ce2c336c57ff10
SHA1

efd56c9d5cf21439b375b17156b1097ad6f444b7
SHA256

fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7
SHA512

f1b4bb480f7ad4717acee436cdce431514461fdd7156bb3c32b284abfc3de2da9f88fbbedea55d2d0e18479bf97d80c7ef6ef7a9321284b03192a2925661193b
SSDEEP

12288:P4GOWAU+XINlrkZMLZFDfqONIJcp2AJEsE4LzLWKYnWJOmX1Efwo4:P4GxAU+XcrkkZFDiOQAesE6XW4JOKIS

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan

Malware Config

Extracted

Family

octo

https://guvenilirislemlershop.com.tr/ZGFiNTEyMzU5Njlj/

https://hizliveguvenilirshop.com.tr/ZGFiNTEyMzU5Njlj/

https://guvenilirshopislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://2guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://3guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://4guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://5guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

rc4.plain

Extracted

Family

octo

https://guvenilirislemlershop.com.tr/ZGFiNTEyMzU5Njlj/

https://hizliveguvenilirshop.com.tr/ZGFiNTEyMzU5Njlj/

https://guvenilirshopislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://2guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://3guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://4guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

https://5guvenilirislemler.com.tr/ZGFiNTEyMzU5Njlj/

AES_key

Signatures

Octo
Octo is a banking malware with remote access capabilities first seen in April 2022.
banker trojan infostealer rat octo

Octo payload 1 IoCs

resource	yara_rule
behavioral1/files/fstream-1.dat	family_octo

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4302	com.waitbigubk

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.waitbigubk/cache/itnkou	4302	com.waitbigubk
/data/user/0/com.waitbigubk/cache/itnkou	4302	com.waitbigubk

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

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.waitbigubk

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.waitbigubk

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.waitbigubk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.waitbigubk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.waitbigubk
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.waitbigubk

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.waitbigubk

Queries the unique device ID (IMEI, MEID, IMSI) 1 TTPs
discovery

System Network Configuration Discovery
T1422
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.waitbigubk

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.waitbigubk

Requests modifying system settings. 1 IoCs

evasion

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

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.waitbigubk

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.waitbigubk

com.waitbigubk
1⤵
- Removes its main activity from the application launcher
- 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.
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:4302

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

Hide Artifacts

T1628

Suppress Application Icon

T1628.001

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

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Downloads

/data/data/com.waitbigubk/cache/itnkou

Filesize
449KB

MD5
9079bd7f9f6a6ea34c2f5cb31a6abc66

SHA1
f7b39b0fa6be618e26f039d00a7d1eb3fcd03d14

SHA256
2b813b42d35f2bc575ad767deb25dc382a6e6dcf835ce13cf47a6cf4fe4ba030

SHA512
55f0d2b11e3a1662144c741d0f2e2538908605fa255652a0059412fa9a43c5be78b59d574e15201dc70a3460efd55842f958f8b2bb3402cec362994ee49b1d9f

Download Submit
/data/data/com.waitbigubk/cache/oat/itnkou.cur.prof

Filesize
452B

MD5
21d54dc4d051e78899f8793b81bb101c

SHA1
ba23c6d740be51632b2b89b422eab407db17821c

SHA256
dcbd31c847c4ced8c5cc0abc81cea14c1d5a72c42bdbde8c22a5660538987327

SHA512
f6a5a19831087dde9aab6546c7d2bfde348757abe3fe9821b8c9e796ea6b92bcfc303e0231779bbb90f71fbc48c150e23544f6474ab66f637a9c46a1a461a3f9

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads