octo | a39e6b3541059c1e7f8a8850e0797d42e3eaacdd07e3a6849f2bbe6f2e18057d

Analysis

max time kernel
21s
max time network
37s
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
22-10-2024 15:44

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General

Target

a39e6b3541059c1e7f8a8850e0797d42e3eaacdd07e3a6849f2bbe6f2e18057d.apk
Size

8.0MB
MD5

92484a09766badd2a12739f0504b23a5
SHA1

826625508d1fea3fa4310a4499ba45541df41cae
SHA256

a39e6b3541059c1e7f8a8850e0797d42e3eaacdd07e3a6849f2bbe6f2e18057d
SHA512

571ec1f479124a0036bd3f96ae0607b1b1bdacb8515ff33d6cdd3113b90d5fb397664e2e0a0e9e94b997208c656ea70b2f02fc33cccabde6fe66ffc244b52a92
SSDEEP

98304:ctsNonp4YYTVKSFymj7CRsRRZ6vpxT5iSRGj1GW:PoiYaUSzj7CRuW1r+

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

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/memory/4311-1.dex	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.rubinsystem_mode1/app_limit/MDAxG.json	4311	com.rubinsystem_mode1
/data/user/0/com.rubinsystem_mode1/[email protected]	4311	com.rubinsystem_mode1

Makes use of the framework's Accessibility service 4 TTPs 1 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.rubinsystem_mode1

Obtains sensitive information copied to the device clipboard 2 TTPs 1 IoCs

Application may abuse the framework's APIs to obtain sensitive information copied to the device clipboard.

collection credential_access impact

Clipboard Data

T1414

Transmitted Data Manipulation

T1641.001

description	ioc	Process
Framework service call	android.content.IClipboard.addPrimaryClipChangedListener	com.rubinsystem_mode1

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.rubinsystem_mode1

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.rubinsystem_mode1

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.rubinsystem_mode1

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

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.rubinsystem_mode1

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.rubinsystem_mode1

Checks CPU information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/cpuinfo	com.rubinsystem_mode1

Checks memory information 2 TTPs 1 IoCs

System Checks

T1633.001

System Information Discovery

T1426

description	ioc	Process
File opened for read	/proc/meminfo	com.rubinsystem_mode1

com.rubinsystem_mode1
1⤵
- Loads dropped Dex/Jar
- Makes use of the framework's Accessibility service
- Obtains sensitive information copied to the device clipboard
- Acquires the wake lock
- Makes use of the framework's foreground persistence service
- Queries the mobile country code (MCC)
- Requests disabling of battery optimizations (often used to enable hiding in the background).
- Uses Crypto APIs (Might try to encrypt user data)
- Checks CPU information
- Checks memory information
PID:4311

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

Input Injection

T1516

Virtualization/Sandbox Evasion

T1633

System Checks

T1633.001

Credential Access

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Discovery

Software Discovery

T1418

Security Software Discovery

T1418.001

System Information Discovery

T1426

System Network Configuration Discovery

T1422

Lateral Movement

Collection

Clipboard Data

T1414

Input Capture

T1417

GUI Input Capture

T1417.002

Keylogging

T1417.001

Screen Capture

T1513

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

T1471

Data Manipulation

T1641

Transmitted Data Manipulation

T1641.001

Input Injection

T1516

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Downloads

/data/data/com.rubinsystem_mode1/.global.com.rubinsystem_mode1

Filesize
48B

MD5
046a414913add6f5bb60072c7db819b6

SHA1
451ee4f6809260aec622d772fd329c7d0297a842

SHA256
b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a

SHA512
4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Download Submit
/data/data/com.rubinsystem_mode1/app_limit/MDAxG.json

Filesize
1006B

MD5
35ae7a86726d77f13039e00caf242dc1

SHA1
c27da12f3a1c4113b884c23090deeb6374464748

SHA256
a0be1ae0d305c251a26017fdca6d1aba43ced3bcffaa04a4cb61d7cb2c69a193

SHA512
567fbb7bc52f19a9f1f1702b6dfec8355edde8f76fc59651e0111bc339d82490fb7a67fc6029142c44bc7872c1ab70da5d6439a9b151201471aa5681778399dd

Download Submit
/data/data/com.rubinsystem_mode1/app_limit/MDAxG.json

Filesize
1006B

MD5
8babd05e089dc54a0c33e9421bf44dc2

SHA1
44c74b64986fed538e8fc1dcf754796e76fba6c2

SHA256
d17a5cb30e586fb342670b6580699c30b03fbb3ee69ab3c494c69e4c53b91036

SHA512
ef8e13d50b0c04582debdb82b5481a219f3d0250a4dca3c4328e097c8fa3ce9b27e33abb7f433802cb223581d4ca9bd0b93f8ea1c53dd1254a3055848e817df2

Download Submit
/data/data/com.rubinsystem_mode1/files/.k

Filesize
322KB

MD5
77dc50489b9323274732d27dc8a4e803

SHA1
0e02a3595b62489d0739d771881da8604d117c65

SHA256
c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820

SHA512
0684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58

Download Submit
/data/data/com.rubinsystem_mode1/oat/x86_64/[email protected]

Filesize
13KB

MD5
4ddb401459169d41aec0e13f73d1a021

SHA1
2d036f895f50a88e31f909531bd9abd365afa7fa

SHA256
6c123087c2f100e456ce32998a83d47541616cf2a3ae69c8dad34a1aa649449c

SHA512
af9680c8c683097bd7ac071a76960165470b4e7ab744bc04734b04defcfd24916c25d0167eb1a38b7a66877e9ef0512c8289178456daf3ef5a4985f71b145343

Download Submit
/data/user/0/com.rubinsystem_mode1/[email protected]

Filesize
525KB

MD5
8b6ffbc975b4b46e590e011ec321ec51

SHA1
a6371410179325809d9eb0f5668879d81f30f579

SHA256
db18236570618a980e18b769892c9b55e01750090933e45bf8af6d45b4bb6d45

SHA512
5aeac650e11b29d48093e3f52af30850f66a5de5ef27e6fbc15c3b2e65a688fbc54e0aaa85860a253e8bc16aa969d8391fb1287a15b16e96e37ee44c1a1d097d

Download Submit
/data/user/0/com.rubinsystem_mode1/app_limit/MDAxG.json

Filesize
1KB

MD5
923c14282612a375c989304387b92923

SHA1
48c2d4c79e6b1a7b8003ec9c4190e5f8a7b2db2a

SHA256
33da65df5de8f27a8b3ff978421e74a2123ece32f8fc3cb6e1224024624d5237

SHA512
1f101da8888a190803906be9ffcc4881b03a3586621ef966989077120ba34a0106ebf935018e50dbe93f6e37cff5dc12885a8a8501d7695c1571c4875580c61b

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

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Downloads