octo | 70f495a5f7d9f90c2f6223d14a8427d6b1080b6cc6980313ab4800108a8ebe9b

Analysis

max time kernel
149s
max time network
159s
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
15-01-2025 22:00

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General

Target

70f495a5f7d9f90c2f6223d14a8427d6b1080b6cc6980313ab4800108a8ebe9b.apk
Size

1.9MB
MD5

98ce3d5996531cea7da9e1d45b37dce6
SHA1

1f4f13818a5e438ded8785c7f21331e8acf22910
SHA256

70f495a5f7d9f90c2f6223d14a8427d6b1080b6cc6980313ab4800108a8ebe9b
SHA512

6958b14c1cc29d83823e8505fa16d10a37f699a7a9cf3d3459b5883227bb95c650ebca75bc7e590b5018d9b197dc0e66eb2432fd6c0cb0e63c81e845250efc40
SSDEEP

49152:yQ2ZTI6Ce1boatXivbBo3hIQO5ZeC8b/WPfCHZludC5TeeQRFiP:yQ2NI6PQjy3yeoCXudC5TeRFQ

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://hastanebilgimrehber.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimiletisim.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkapsami.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimtavsiyesi.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkaynak.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyolu.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimgucu.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimguncel.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyonetim.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdestek.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyenilik.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimtarih.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkaynaklari.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimplatform.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdogru.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdogruluk.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimanlayis.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimhizmet.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkalite.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimiletim.xyz/MzhiMTg0NTAwOTY5/

rc4.plain

Extracted

Family

octo

https://hastanebilgimrehber.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimiletisim.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkapsami.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimtavsiyesi.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkaynak.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyolu.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimgucu.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimguncel.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyonetim.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdestek.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimyenilik.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimtarih.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkaynaklari.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimplatform.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdogru.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimdogruluk.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimanlayis.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimhizmet.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimkalite.xyz/MzhiMTg0NTAwOTY5/

https://hastanebilgimiletim.xyz/MzhiMTg0NTAwOTY5/

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 2 IoCs

resource	yara_rule
behavioral1/memory/4240-0.dex	family_octo
behavioral1/memory/4213-0.dex	family_octo

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

stealth trojan evasion

Suppress Application Icon

T1628.001

pid	Process
4213	co.learnol.bksfz

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/co.learnol.bksfz/app_oppose/fP.json	4240	/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/co.learnol.bksfz/app_oppose/fP.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/co.learnol.bksfz/app_oppose/oat/x86/fP.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/co.learnol.bksfz/app_oppose/fP.json	4213	co.learnol.bksfz

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	co.learnol.bksfz
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	co.learnol.bksfz

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	co.learnol.bksfz

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	co.learnol.bksfz

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	co.learnol.bksfz
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	co.learnol.bksfz
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	co.learnol.bksfz
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	co.learnol.bksfz

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	co.learnol.bksfz

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	co.learnol.bksfz

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	co.learnol.bksfz

Requests modifying system settings. 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	co.learnol.bksfz

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	co.learnol.bksfz

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	co.learnol.bksfz

co.learnol.bksfz
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:4213
- /system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/co.learnol.bksfz/app_oppose/fP.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/co.learnol.bksfz/app_oppose/oat/x86/fP.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4240

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

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Downloads

/data/data/co.learnol.bksfz/app_oppose/fP.json

Filesize
153KB

MD5
1bcfd8c1b883d6a4cb56b0110b4556af

SHA1
0fcf7efb6404c5850ddcde5070e60bf5dd151b34

SHA256
bbf02e2ed76a96c0905ec28de9e5ff9e2cfd3b77694584319f957384a10c4c2a

SHA512
819f153d58c9a39bd5198e3abcd12d05face07773b64dbba30c6fa4a82b749839fb3d2e004e8f9cefca63bec24fa238b4f2404febf1cddb1d7ad849655413358

Download Submit
/data/data/co.learnol.bksfz/app_oppose/fP.json

Filesize
153KB

MD5
d8365816d2a2280c5d12c8446b48278b

SHA1
e59099c287c5d9ab5982e46ebef8c2a78984aaf3

SHA256
b75ec0034cfcff8ae84d4c7f6760227dd39256d8a34c51b6ea6c90ec660c5e3c

SHA512
742da0b423e72e015aa2403d570abfd106bc3bf1635d5acbcb6efd58d6dd14ff19dba825c739d73e49bdca66e70a727cc04601e0e52e20fd97ab02dd93a0b184

Download Submit
/data/user/0/co.learnol.bksfz/app_oppose/fP.json

Filesize
450KB

MD5
666a637d229504552caf5254d5fd101f

SHA1
c1cc80f456ec181e0a7585c7968b33fabdda8027

SHA256
84836dc78f117ad778b49008bd639dddf78d6366eefd48639c76e9977498ecbf

SHA512
7a006641dac5b4cde6dbbb4426a87aaff77d64c9471cc5484e6060c1dbb1e17c967f26089b1a2d24dcd00d3c2e8b9c1423b6448138061b07f87e8bd49cb3664b

Download Submit
/data/user/0/co.learnol.bksfz/app_oppose/fP.json

Filesize
450KB

MD5
a26559217d84c32c2c8a0bb59f1ce1d8

SHA1
f0ea68ad2bd177d8a4216b21db87500f5e0d25ee

SHA256
2e51decdc36ac38ab36758a65dc87817eb319eff59b95f9c36abef0805671224

SHA512
cea40a37df07feba39b6b106c9a9741b4b026da56af50b63352c440c4388c4be83c5477eab690a8c33735201ed3e1f2eac344b3262036c2a4f948154132f759a

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads