octo | a23b0cd90f46c9c6e4ed03fd5b6025e85fdb71f075d2c91d22c80ed8a168b5f3

Analysis

max time kernel
149s
max time network
156s
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
19-10-2024 22:06

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General

Target

a23b0cd90f46c9c6e4ed03fd5b6025e85fdb71f075d2c91d22c80ed8a168b5f3.apk
Size

2.4MB
MD5

bb637387ee35041759b8eca5704de4df
SHA1

c35dba76303f556130248941e166fdcb95e34406
SHA256

a23b0cd90f46c9c6e4ed03fd5b6025e85fdb71f075d2c91d22c80ed8a168b5f3
SHA512

1f05ffe4b0aa0fd9becbf65ae26ea1183c296858ff9313d126eb529b83dbb99bdbe9a9651ef5e7d87b237c4d8465ffe699ebc7227ee937d5d63865a76dbb0169
SSDEEP

49152:LBnfdE44FmDarDkwMSpmQUDIolUMAoA2sFh4KMWgcf0QQztqfVooV32:Nft4zPkdzQUsoqMAoAp34rCnQc69

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://2pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://3pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://4pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://5pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://6pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

rc4.plain

Extracted

Family

octo

https://pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://2pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://3pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://4pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://5pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

https://6pethsop332.com/MzQ1Yzk1ZGQ4ODY3/

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
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.islandstillbn/cache/hdyntumvnvbqj	4461	com.islandstillbn

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

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.islandstillbn

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.islandstillbn

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.islandstillbn
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.islandstillbn
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.islandstillbn
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.islandstillbn

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.islandstillbn

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.islandstillbn

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.islandstillbn

Requests modifying system settings. 1 IoCs

evasion

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

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.islandstillbn

com.islandstillbn
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:4461

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/data/com.islandstillbn/cache/hdyntumvnvbqj

Filesize
2.3MB

MD5
700c00ee3b9dd276cb544221d5789e21

SHA1
d34a05d4f5e264641e4a6322adf3172339f3bbae

SHA256
91e23518ef6e2ba4d6395481a21aba1934ed82501512256cd2a2d72394cabc85

SHA512
de79b4b7430d5e9286995110c49b0f3b4e1c1863da31fb2c84693097bcb8da99c45f4e6d79b903a5f0e9f42701657d94e119ef42ee44b9c90d231bd8fb37b510

Download Submit
/data/data/com.islandstillbn/cache/oat/hdyntumvnvbqj.cur.prof

Filesize
426B

MD5
817e10864d36d79a6ce2924111316c70

SHA1
9b2d5db0f133364653484672569743f23fd89c36

SHA256
bafbc723853dc0c88a9d6e8c1256d725b85a7ac3fc339079b3870dc90ca83ce7

SHA512
e031b9818b82ec6c150631293c1b5b8a4a0dac24b07947a76248e137d582cf7aec527ff3d589076bcf6c394a69337a651d9a7c4242bccf9563283e2ff2bea8b0

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads