octo | 64b535ae0e7d0f9edfcec31945310ea1c710f1aee18c52ac45c579b5a1ea3dfc

Analysis

max time kernel
147s
max time network
131s
platform
android_x64
resource
android-x64-20240624-en
resource tags

androidarch:x64arch:x86image:android-x64-20240624-enlocale:en-usos:android-10-x64system
submitted
20-11-2024 22:00

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General

Target

64b535ae0e7d0f9edfcec31945310ea1c710f1aee18c52ac45c579b5a1ea3dfc.apk
Size

1.2MB
MD5

57ea80a371feab800709e5b125e93a06
SHA1

f94f3f868141393ec9df11307eb7eddc6d9b734a
SHA256

64b535ae0e7d0f9edfcec31945310ea1c710f1aee18c52ac45c579b5a1ea3dfc
SHA512

aab66aa2e80a4289aa0fdd1964c60a3649fdf732384f1b888dcb10a6c4d49855f2d087e3f2cad245a7c5686cd6e6135ffc746a8d32613a8f8575b637dde8c1b0
SSDEEP

24576:IaibmdwiITEEFMqBAH98uswqtfncy82BOOHoOVepxTfzJwldqNfUQNtd:VS6IoE+qBAH9qwq/7XPyxT9EdkfUQNtd

Score

10^/10

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Malware Config

Extracted

Family

octo

https://siqnisiq.com/M2EyOTM2M2FlY2My/

https://xijunggao.com/M2EyOTM2M2FlY2My/

https://fujetgue.shop/M2EyOTM2M2FlY2My/

https://junggvbvb.com/M2EyOTM2M2FlY2My/

https://junggvbv.com/M2EyOTM2M2FlY2My/

https://sabgggsabggg.com/M2EyOTM2M2FlY2My/

https://sabgggsabggg.top/M2EyOTM2M2FlY2My/

https://sabgggsabgggsabggg.top/M2EyOTM2M2FlY2My/

https://nisiqnisiq.top/M2EyOTM2M2FlY2My/

https://abgggpoh.top/M2EyOTM2M2FlY2My/

rc4.plain

Extracted

Family

octo

https://siqnisiq.com/M2EyOTM2M2FlY2My/

https://xijunggao.com/M2EyOTM2M2FlY2My/

https://fujetgue.shop/M2EyOTM2M2FlY2My/

https://junggvbvb.com/M2EyOTM2M2FlY2My/

https://junggvbv.com/M2EyOTM2M2FlY2My/

https://sabgggsabggg.com/M2EyOTM2M2FlY2My/

https://sabgggsabggg.top/M2EyOTM2M2FlY2My/

https://sabgggsabgggsabggg.top/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 3 IoCs

Runs executable file dropped to the device during analysis.

evasion

Download New Code at Runtime

T1407

ioc	pid	Process
/data/user/0/com.colddoosuj/app_DynamicOptDex/UWgpuwY.json	5059	com.colddoosuj
/data/user/0/com.colddoosuj/cache/bbttmxgc	5059	com.colddoosuj
/data/user/0/com.colddoosuj/cache/bbttmxgc	5059	com.colddoosuj

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.colddoosuj

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.colddoosuj

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.colddoosuj

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.colddoosuj
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.colddoosuj

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.colddoosuj

Reads information about phone network operator. 1 TTPs
discovery

System Network Configuration Discovery
T1422

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.colddoosuj

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.colddoosuj

com.colddoosuj
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)
- Registers a broadcast receiver at runtime (usually for listening for system events)
- Uses Crypto APIs (Might try to encrypt user data)
PID:5059

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

Impair Defenses

T1629

Prevent Application Removal

T1629.001

Input Injection

T1516

Credential Access

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

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

Replay Monitor

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Downloads

/data/data/com.colddoosuj/app_DynamicOptDex/UWgpuwY.json

Filesize
2KB

MD5
37fc167b6ec22e7a7ebd17e4bc9dc52e

SHA1
7df1ad43a39d1c22e48a24359e8ccbbdb1cd2533

SHA256
805695ae70904a474cfbd18c62bfd7c036bd2f7f8d1d74e412f06b8173e5dcf5

SHA512
1d9a129255b1cefc2aba214955874feae81d4e2c0c112090613e781ce50d1095e765d73b5d29563029a50f1a2e40bcd442e02e4b6f36b99d65fcf07f9156cc98

Download Submit
/data/data/com.colddoosuj/app_DynamicOptDex/UWgpuwY.json

Filesize
2KB

MD5
ea56c3bc743790e0c100c242b1bafb34

SHA1
14b19ea384f7e8d9bcd464a8d2bb52425b1a0b10

SHA256
9cd8e9c12b8d5391cf59738230fa198cad24f7f442537cff438e076d6b52393d

SHA512
271d22873ff693afb0b98b78a90ac5e06a2eb0b351008c1fad1770eb7c00b9304341efcfe92f67f0f8c42ded9f96c6e8d0665dcfa5a2477f1ce3362f1c06f38c

Download Submit
/data/data/com.colddoosuj/cache/bbttmxgc

Filesize
448KB

MD5
8087d117f28be45559cb45b4bcd7c89c

SHA1
ee2547667760be13c071da4a8f01258dce6ce557

SHA256
275c8d5c41275965a97764cc51b39fd344d803b8f7a3b686a303eda2382266a1

SHA512
328973fa9321c2ec2ec663dd8fd46d8753d7d6480d20d3f4a43b33da508d3231c650b7a062a586ae584b0a78339819d8de6a25ab0dabf88eed82c853eb9df6c3

Download Submit
/data/data/com.colddoosuj/cache/oat/bbttmxgc.cur.prof

Filesize
474B

MD5
0865bf75ef6e232b520c3f1cf4ee2e29

SHA1
237a3c4c7b3f92eff1b77a25716213e99dcd2995

SHA256
86a2d005128c50a049424a1bc966b538dbf8b75e1ecf8a1e7c1b7a6cea8319ec

SHA512
bd120b45efc7e3db04239cffbd15b893043844d7e97ae725f00c80d645adf6fcdb714520ed3e593b7f888c380fc4208aa96422fb24f56d3eb3313df8ce410130

Download Submit
/data/user/0/com.colddoosuj/app_DynamicOptDex/UWgpuwY.json

Filesize
5KB

MD5
0868097b61441c163c964fdb3610e34e

SHA1
cc8a27912a5083e4fe998bd0fd2567019e739f7c

SHA256
913842b54d425628cef2516b1537cbeb0b9eae5c71df5d652fa27f13585ef005

SHA512
6ab9660fe5136be6596e4865be86d823ad1c44ba94df0f89589dbce352b39cf01014c94a4ba8fa883723b2d21f1948ff4d46315431788c9b66fe82b04d75382b

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Mobile v15

Replay Monitor

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Downloads