octo | 300eb450650de6e687553a5e369b2da73f359375bc2e2402d36b48f86aaf6296

Analysis

max time kernel
149s
max time network
134s
platform
android_x64
resource
android-33-x64-arm64-20240624-en
resource tags

androidarch:arm64arch:x64image:android-33-x64-arm64-20240624-enlocale:en-usos:android-13-x64system
submitted
23-12-2024 22:08

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General

Target

300eb450650de6e687553a5e369b2da73f359375bc2e2402d36b48f86aaf6296.apk
Size

1.5MB
MD5

3c4dd433d0ecc73674787774c65b2c9b
SHA1

0dc1a9238f9f186c4a111a0eff5b03f8ce627446
SHA256

300eb450650de6e687553a5e369b2da73f359375bc2e2402d36b48f86aaf6296
SHA512

417d3e48bcd58f7695368af4e0c4e33f19ffcfd109c1b1bd296df174ae4cd38fad56674df4cdbcf4d2d9b77938a68b5892801438f262925ba4a43df848911196
SSDEEP

49152:0ZCBMbtHqbMT1cBsvDqZrVaRsE5zO+656r:ACB5A1DDLx65+

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://junggvbvqqtech.com/M2EyOTM2M2FlY2My/

https://bestjunggvbvqq.com/M2EyOTM2M2FlY2My/

https://jungjungju.com/M2EyOTM2M2FlY2My/

https://junggvbvqqqqqq.com/M2EyOTM2M2FlY2My/

https://lajunggvbvqq.com/M2EyOTM2M2FlY2My/

https://junggvbvqqgroup.com/M2EyOTM2M2FlY2My/

https://junggvbvqqnet.com/M2EyOTM2M2FlY2My/

https://abgggpoh.com/M2EyOTM2M2FlY2My/

https://nisiqniqqsiq.com/M2EyOTM2M2FlY2My/

https://nisiqnisiq.top/M2EyOTM2M2FlY2My/

https://abgggpoh.top/M2EyOTM2M2FlY2My/

rc4.plain

Extracted

Family

octo

https://junggvbvqqtech.com/M2EyOTM2M2FlY2My/

https://bestjunggvbvqq.com/M2EyOTM2M2FlY2My/

https://jungjungju.com/M2EyOTM2M2FlY2My/

https://junggvbvqqqqqq.com/M2EyOTM2M2FlY2My/

https://lajunggvbvqq.com/M2EyOTM2M2FlY2My/

https://junggvbvqqgroup.com/M2EyOTM2M2FlY2My/

https://junggvbvqqnet.com/M2EyOTM2M2FlY2My/

https://abgggpoh.com/M2EyOTM2M2FlY2My/

https://nisiqniqqsiq.com/M2EyOTM2M2FlY2My/

https://nisiqnisiq.top/M2EyOTM2M2FlY2My/

https://abgggpoh.top/M2EyOTM2M2FlY2My/

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-3.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.starnumeralu/app_DynamicOptDex/uCNqu.json	4344	com.starnumeralu
/data/user/0/com.starnumeralu/cache/gzdlxmjjwruzq	4344	com.starnumeralu

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

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.starnumeralu

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.starnumeralu

Performs UI accessibility actions on behalf of the user 1 TTPs 2 IoCs

Application may abuse the accessibility service to prevent their removal.

evasion

Prevent Application Removal

T1629.001

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

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.starnumeralu

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.starnumeralu

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.starnumeralu

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.starnumeralu

com.starnumeralu
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).
- Uses Crypto APIs (Might try to encrypt user data)
PID:4344

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

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Downloads

/data/user/0/com.starnumeralu/app_DynamicOptDex/uCNqu.json

Filesize
2KB

MD5
fb085df3ed62ad02f54ee14723e2aacc

SHA1
9b1d946008241815855760948ffb1953d342c78e

SHA256
9a272fdc2dae07dc84a5a86d09ea3ac130bb0c8be6d413e2e626aa7c19f1e20d

SHA512
ebbb10122c335b26c7992d3aab1aee7a6fc07d2900d2210cb35efe21537ba9f660da1c1f328eee71e1b5b2ad3f835eda890cebc01cf10cc7af16b0c16dc00e20

Download Submit
/data/user/0/com.starnumeralu/app_DynamicOptDex/uCNqu.json

Filesize
2KB

MD5
ef002faf7ed504887de20b831b2ed779

SHA1
170e0fa9fe3c097698bb2a48726bad43df191783

SHA256
915bda50867176d3e42234426d203344554ddd7664482c4d434fe474ac6e48c3

SHA512
882dbca6632c798a969d0622c0cfe70f0528d252285a8ccba016e38560718e240121efb36fdcc337b3edcf067595114fcb26ba55888c8c98da7af1f52cdf22c5

Download Submit
/data/user/0/com.starnumeralu/app_DynamicOptDex/uCNqu.json

Filesize
7KB

MD5
9c4624f4ee6a636b629bc1080d6e86ec

SHA1
0c0fcc3e1a5dc3457f795865748a921022c3d782

SHA256
178ffe28516bd69594cdc6e1fdbfef566ac83534ca81f7bfccaf39f4ff203b8f

SHA512
92ccb0c0ebc044f162cf3e6b25f383c591c0f7430f67e6461766b7b45e39cac4b4fb73c68d6fea76ce17bed635da705e1a7237c150412441da595fb7553b5392

Download Submit
/data/user/0/com.starnumeralu/cache/gzdlxmjjwruzq

Filesize
448KB

MD5
da5c3a64bbeba3af53d00df11420ba26

SHA1
7b718057a6146c6f507e941489199dc932164c05

SHA256
d6391835f7f8c71aba46d6df02a48b40f8e0c99d434e40d8b05e38dcf6543c72

SHA512
097cb670b1a3ff00992f9acde6848014eedf0f393209eefe9369d688ec2fee5693c2b4deca7d5c5f893d051e1d9d8a13846b6106e6767a15110da65d275063cb

Download Submit
/data/user/0/com.starnumeralu/cache/oat/gzdlxmjjwruzq.cur.prof

Filesize
378B

MD5
69f8e6522ddf9a0034fda3662019846a

SHA1
aa837ed6f2ee8f6bd1000ad511826558312649b0

SHA256
c7a1707c9ad351910f432a3fe58e6827455dfa0ffca6ea154c84e083c91fcdc2

SHA512
e1c7c9a10375c42cf9a399fb843620a5594988249f4357b346e65b2f57c6c3cbbf3165a38eaaeb18a7dee7bd6d4af38bb0d87c2893ef8c4632aaa7eb0661590c

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads