octo | a734f2564e721eb43003107ac5e99aa57f9230e465c45bcf2d21c9935938b75c

Analysis

max time kernel
147s
max time network
132s
platform
android_x86
resource
android-x86-arm-20240624-en
resource tags

androidarch:armarch:x86image:android-x86-arm-20240624-enlocale:en-usos:android-9-x86system
submitted
25-12-2024 22:03

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General

Target

a734f2564e721eb43003107ac5e99aa57f9230e465c45bcf2d21c9935938b75c.apk
Size

2.3MB
MD5

9a7e7e4133ef539f46f56cc69884d2b8
SHA1

c790347df9807b9aae081a8b35e9007953c7f3db
SHA256

a734f2564e721eb43003107ac5e99aa57f9230e465c45bcf2d21c9935938b75c
SHA512

751902786645befa80827f134e073a7820dde43d91529aab7708e6101b6edce6cb755b6510cb326e1b352adb19e94405f2018597a3727c4b05cb6fc0d23e7be9
SSDEEP

49152:OjdORg+kggDD74wm/2psKkrwtkOQJvcv8p5Jm82suaJ6E8/ycmDgNk/:2f+6DXM2arrwtkJxcyzmSh6E8bEX/

Score

10^/10

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

Malware Config

Extracted

Family

octo

https://karateustalariningizemlisan.xyz/MTk5MTQ4ZGNkMDBi/

https://karateyolcususamuraidurusu.xyz/MTk5MTQ4ZGNkMDBi/

https://karatefelsefesininizleri.xyz/MTk5MTQ4ZGNkMDBi/

https://dojovekaretekahramanlari.xyz/MTk5MTQ4ZGNkMDBi/

https://karatesanatvesavasustasi.xyz/MTk5MTQ4ZGNkMDBi/

https://samuraivekarateduruslari.xyz/MTk5MTQ4ZGNkMDBi/

https://karatedoguveteoribilgileri.xyz/MTk5MTQ4ZGNkMDBi/

https://karateantrenmanvesanat.xyz/MTk5MTQ4ZGNkMDBi/

https://karetecininkusursuzvurus.xyz/MTk5MTQ4ZGNkMDBi/

https://kareteharaketveteknik.xyz/MTk5MTQ4ZGNkMDBi/

https://savassanatlarinindunyasi.xyz/MTk5MTQ4ZGNkMDBi/

https://karateustalaringizemlibilgisi.xyz/MTk5MTQ4ZGNkMDBi/

https://dojoyolundagecenanilar.xyz/MTk5MTQ4ZGNkMDBi/

https://karatetarihvesanatustalari.xyz/MTk5MTQ4ZGNkMDBi/

https://karateustalikursunumetodu.xyz/MTk5MTQ4ZGNkMDBi/

https://karatekahramankitalarustasi.xyz/MTk5MTQ4ZGNkMDBi/

https://samuraikavramvesanatifelsefe.xyz/MTk5MTQ4ZGNkMDBi/

https://karateevrenselustalikbilgisi.xyz/MTk5MTQ4ZGNkMDBi/

https://karatekapsamlisanatustalari.xyz/MTk5MTQ4ZGNkMDBi/

https://dojotarihiyolundandegisime.xyz/MTk5MTQ4ZGNkMDBi/

rc4.plain

Extracted

Family

octo

https://karateustalariningizemlisan.xyz/MTk5MTQ4ZGNkMDBi/

https://karateyolcususamuraidurusu.xyz/MTk5MTQ4ZGNkMDBi/

https://karatefelsefesininizleri.xyz/MTk5MTQ4ZGNkMDBi/

https://dojovekaretekahramanlari.xyz/MTk5MTQ4ZGNkMDBi/

https://karatesanatvesavasustasi.xyz/MTk5MTQ4ZGNkMDBi/

https://samuraivekarateduruslari.xyz/MTk5MTQ4ZGNkMDBi/

https://karatedoguveteoribilgileri.xyz/MTk5MTQ4ZGNkMDBi/

https://karateantrenmanvesanat.xyz/MTk5MTQ4ZGNkMDBi/

https://karetecininkusursuzvurus.xyz/MTk5MTQ4ZGNkMDBi/

https://kareteharaketveteknik.xyz/MTk5MTQ4ZGNkMDBi/

https://savassanatlarinindunyasi.xyz/MTk5MTQ4ZGNkMDBi/

https://karateustalaringizemlibilgisi.xyz/MTk5MTQ4ZGNkMDBi/

https://dojoyolundagecenanilar.xyz/MTk5MTQ4ZGNkMDBi/

https://karatetarihvesanatustalari.xyz/MTk5MTQ4ZGNkMDBi/

https://karateustalikursunumetodu.xyz/MTk5MTQ4ZGNkMDBi/

https://karatekahramankitalarustasi.xyz/MTk5MTQ4ZGNkMDBi/

https://samuraikavramvesanatifelsefe.xyz/MTk5MTQ4ZGNkMDBi/

https://karateevrenselustalikbilgisi.xyz/MTk5MTQ4ZGNkMDBi/

https://karatekapsamlisanatustalari.xyz/MTk5MTQ4ZGNkMDBi/

https://dojotarihiyolundandegisime.xyz/MTk5MTQ4ZGNkMDBi/

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/4245-0.dex	family_octo
behavioral1/memory/4221-0.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
4221	com.toy.immune

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.toy.immune/app_essay/Ce.json	4245	/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/com.toy.immune/app_essay/Ce.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.toy.immune/app_essay/oat/x86/Ce.odex --compiler-filter=quicken --class-loader-context=&
/data/user/0/com.toy.immune/app_essay/Ce.json	4221	com.toy.immune

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.toy.immune
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.toy.immune

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.toy.immune

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.toy.immune

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.toy.immune
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.toy.immune
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.toy.immune
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.toy.immune

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.toy.immune

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.toy.immune

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.toy.immune

Requests modifying system settings. 1 IoCs

evasion

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.toy.immune

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.toy.immune

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.toy.immune

com.toy.immune
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:4221
- /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/com.toy.immune/app_essay/Ce.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.toy.immune/app_essay/oat/x86/Ce.odex --compiler-filter=quicken --class-loader-context=&
  2⤵
  - Loads dropped Dex/Jar
  PID:4245

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/com.toy.immune/app_essay/Ce.json

Filesize
153KB

MD5
b29dd9e6704e62b0730f2b4f5d0d147a

SHA1
24f8d1c05b23fc744b908671d37e44acce1a4734

SHA256
b56bb2c4503cf2ff364e7370ee69360db7fea2163ff98957c97084535403e067

SHA512
cc7396d1f86f44402035365364d5d03c27fe207593917d78767eb1902bad88187ae4127042cd5f41527b1a1e38184eee51dfc78bcd1fbcd4f4163f30f4bfa191

Download Submit
/data/data/com.toy.immune/app_essay/Ce.json

Filesize
153KB

MD5
cbfdb6016277c567f8bc4ded9c5d9718

SHA1
620f880e5662c79feca06245d3ba23c9e47e0775

SHA256
bf69a0faa14a9d63601f547b16be4df60f344defe78a7bd6ee6ad90695a43885

SHA512
268c28c7e833ce0f3112f942723bc44bf3943086f319e258262d50599c7f7652be3a1db6412b66ab2738d64799cea1a48375b7b8b2761360c43ebdfb4eb0f3b0

Download Submit
/data/user/0/com.toy.immune/app_essay/Ce.json

Filesize
450KB

MD5
5c02319c8a995956af1f6d1cf92e7642

SHA1
ed3d307f743de4cc71dd9f54399261da9a60e6fc

SHA256
cc7a940cb01e7e8a98a3621895de5a2b749efaf49ca08e72453df070e3aa447c

SHA512
dbd4625672a0b25b6aa8236726c97029ece5bd6b99c63e7209b99cbd01d01531f5d2134b59116c545d406435007bc05cbc55ba01d08aaf984df15ec14ae9a759

Download Submit
/data/user/0/com.toy.immune/app_essay/Ce.json

Filesize
450KB

MD5
850594ee5611c504e11527d8d8579216

SHA1
91c4887e27b9ebadda7e9c6fc74d2c40e7606f17

SHA256
c2448d7b344ff22bd3ff1d3adcbf44dcb9777de83c0a6bf3a4d4d8b42b757dd9

SHA512
5adb2f6c196bb4dfbdac816ce6fbde0e14d3054e572f663a9ec550a0db5265c645fa999b596b06baea69450466fcdd17370228f35758a11ff5d8db96ad00b080

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads