octo | d30dcd2d410faf9eca3f354f365dae25c2c111f5961897c3f7d38b78df8f73a4 | Triage

Analysis

max time kernel
143s
max time network
151s
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
12-11-2024 00:02

Sharing

Report Analysis Logs

General

Target

d30dcd2d410faf9eca3f354f365dae25c2c111f5961897c3f7d38b78df8f73a4.apk
Size

2.4MB
MD5

03d5580821dfd614b6c3b2eb8b15cdb0
SHA1

fab6e512b696817a24ea300eb077db006b02431c
SHA256

d30dcd2d410faf9eca3f354f365dae25c2c111f5961897c3f7d38b78df8f73a4
SHA512

1a848ff4f35d6280d515c18401630bfeb2c445b72d5cb0bbc55e5feadf8aa57a9dcc2e328dc9343c2931ae484bf71d38f5c08bbfe682d890eb6450c711553942
SSDEEP

49152:vXLym/Rg4wRugUXDAKYdrjG6EAvT6y6tajAdZ4r0w9m/06IXV5:z/wRJK6rjLEAL6yOdZ4r7S06IXV5

Score

10^/10

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

Malware Config

Extracted

Family

octo

C2

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

rc4.plain

Extracted

Family

octo

C2

https://7bb13903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://4b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://34b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://64b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://74b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://894b6413903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139030754567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b64139033074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

https://94b641553903074567453981d0595033c23.com/YmZiMzU0OTU5NGIz/

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
behavioral1/files/fstream-1.dat	family_octo

Removes its main activity from the application launcher 1 TTPs 1 IoCs

stealth trojan evasion

Suppress Application Icon

pid	Process
4252	com.wordwho58

Loads dropped Dex/Jar 1 TTPs 2 IoCs

Runs executable file dropped to the device during analysis.

Download New Code at Runtime

ioc	pid	Process
/data/user/0/com.wordwho58/cache/uykfepuvfolktdr	4252	com.wordwho58
/data/user/0/com.wordwho58/cache/uykfepuvfolktdr	4252	com.wordwho58

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

Screen Capture

Keylogging

GUI Input Capture

description	ioc	Process
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId	com.wordwho58
Framework service call	android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId	com.wordwho58

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.wordwho58

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

description	ioc	Process
Framework service call	android.app.IActivityManager.setServiceForeground	com.wordwho58

Performs UI accessibility actions on behalf of the user 1 TTPs 4 IoCs

Application may abuse the accessibility service to prevent their removal.

Prevent Application Removal

ioc	Process
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wordwho58
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wordwho58
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wordwho58
android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction	com.wordwho58

Queries the mobile country code (MCC) 1 TTPs 1 IoCs

System Network Configuration Discovery

description	ioc	Process
Framework service call	com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone	com.wordwho58

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

description	ioc	Process
Intent action	android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS	com.wordwho58

Requests disabling of battery optimizations (often used to enable hiding in the background). 1 TTPs 1 IoCs

User Evasion

description	ioc	Process
Intent action	android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS	com.wordwho58

Requests modifying system settings. 1 IoCs

description	ioc	Process
Intent action	android.settings.action.MANAGE_WRITE_SETTINGS	com.wordwho58

Registers a broadcast receiver at runtime (usually for listening for system events) 1 TTPs 1 IoCs

Broadcast Receivers

description	ioc	Process
Framework service call	android.app.IActivityManager.registerReceiver	com.wordwho58

Uses Crypto APIs (Might try to encrypt user data) 1 TTPs 1 IoCs

Data Encrypted for Impact

description	ioc	Process
Framework API call	javax.crypto.Cipher.doFinal	com.wordwho58

com.wordwho58
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:4252

Network

MITRE ATT&CK Mobile v15

Initial Access

Execution

Persistence

Event Triggered Execution

Broadcast Receivers

Foreground Persistence

Privilege Escalation

Defense Evasion

Download New Code at Runtime

Foreground Persistence

Hide Artifacts

Suppress Application Icon

User Evasion

Impair Defenses

Prevent Application Removal

Input Injection

Credential Access

Access Notifications

Input Capture

GUI Input Capture

Keylogging

Discovery

Software Discovery

Security Software Discovery

System Network Configuration Discovery

Lateral Movement

Collection

Access Notifications

Input Capture

GUI Input Capture

Keylogging

Screen Capture

Command and Control

Exfiltration

Impact

Data Encrypted for Impact

Input Injection

Replay Monitor

Loading Replay Monitor...

Downloads

/data/data/com.wordwho58/cache/oat/uykfepuvfolktdr.cur.prof

Filesize
533B

MD5
0fb95bc7fe647017a5a201bd6ce1343a

SHA1
b2d024e772de57339808c0378f628402609fbaab

SHA256
ca83cafd2739c66003b95766622c20881e558c0bc264eda7a486c81305546f13

SHA512
2ff59643327a4c400f593f564405a5c2ae443f1aed42bd03e0c1a2f4197f420c3cf2aa08fec90044e8fff17229d19461e3b2111392045d8994207ec8a917c735

Download Submit
/data/data/com.wordwho58/cache/uykfepuvfolktdr

Filesize
2.3MB

MD5
3374e3a3a07dce2df2e865090c905478

SHA1
96e590b3e7685e773ae268277d626f22f810e06c

SHA256
e0f4147e39c66254154e31fee988c78ec74fe1d518a1b874bd5c3ba4dc897747

SHA512
63fffc52ce4bf3297953b1b380c383a0be609bbd3d3bc8b425ab1f16ba5ebce6437d923bad347ea6e691875d1a69b9f7908aa03617bb84f86ff181511aa44699

Download Submit