Malware Analysis Report

2024-10-19 12:58

Sample ID 240826-1wnmxaxfka
Target 9ba235a0ddc550d671f552dc0df319934e3ed3053ee89a6a06f181d97e5bdc43.bin
SHA256 9ba235a0ddc550d671f552dc0df319934e3ed3053ee89a6a06f181d97e5bdc43
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Mobile Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9ba235a0ddc550d671f552dc0df319934e3ed3053ee89a6a06f181d97e5bdc43

Threat Level: Known bad

The file 9ba235a0ddc550d671f552dc0df319934e3ed3053ee89a6a06f181d97e5bdc43.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo

Octo payload

Removes its main activity from the application launcher

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

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

Declares broadcast receivers with permission to handle system events

Makes use of the framework's foreground persistence service

Queries the unique device ID (IMEI, MEID, IMSI)

Performs UI accessibility actions on behalf of the user

Acquires the wake lock

Queries the mobile country code (MCC)

Reads information about phone network operator.

Requests modifying system settings.

Requests accessing notifications (often used to intercept notifications before users become aware).

Requests dangerous framework permissions

Declares services with permission to bind to the system

Uses Crypto APIs (Might try to encrypt user data)

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

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-26 22:00

Signatures

Declares broadcast receivers with permission to handle system events

Description Indicator Process Target
Required by device admin receivers to bind with the system. Allows apps to manage device administration features. android.permission.BIND_DEVICE_ADMIN N/A N/A

Declares services with permission to bind to the system

Description Indicator Process Target
Required by accessibility services to bind with the system. Allows apps to access accessibility features. android.permission.BIND_ACCESSIBILITY_SERVICE N/A N/A
Required by notification listener services to bind with the system. Allows apps to listen to and interact with notifications on the device. android.permission.BIND_NOTIFICATION_LISTENER_SERVICE N/A N/A

Requests dangerous framework permissions

Description Indicator Process Target
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an application to send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call. android.permission.CALL_PHONE N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows read only access to phone state, including the current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device. android.permission.READ_PHONE_STATE N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-26 22:00

Reported

2024-08-26 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

56s

Max time network

134s

Command Line

com.wentwellim

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Removes its main activity from the application launcher

stealth trojan evasion
Description Indicator Process Target
N/A N/A N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.wentwellim/cache/kaxuxkiiibmcmgl N/A N/A
N/A /data/user/0/com.wentwellim/cache/kaxuxkiiibmcmgl N/A N/A

Makes use of the framework's Accessibility service

collection evasion credential_access
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfosByViewId N/A N/A

Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps)

banker discovery

Queries the phone number (MSISDN for GSM devices)

discovery

Acquires the wake lock

Description Indicator Process Target
Framework service call android.os.IPowerManager.acquireWakeLock N/A N/A

Makes use of the framework's foreground persistence service

evasion persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.setServiceForeground N/A N/A

Performs UI accessibility actions on behalf of the user

evasion
Description Indicator Process Target
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A
N/A android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction N/A N/A

Queries the mobile country code (MCC)

discovery
Description Indicator Process Target
Framework service call com.android.internal.telephony.ITelephony.getNetworkCountryIsoForPhone N/A N/A

Queries the unique device ID (IMEI, MEID, IMSI)

discovery

Reads information about phone network operator.

discovery

Requests accessing notifications (often used to intercept notifications before users become aware).

collection credential_access
Description Indicator Process Target
Intent action android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS N/A N/A

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

evasion
Description Indicator Process Target
Intent action android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS N/A N/A

Requests modifying system settings.

evasion
Description Indicator Process Target
Intent action android.settings.action.MANAGE_WRITE_SETTINGS N/A N/A

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

persistence
Description Indicator Process Target
Framework service call android.app.IActivityManager.registerReceiver N/A N/A

Uses Crypto APIs (Might try to encrypt user data)

impact
Description Indicator Process Target
Framework API call javax.crypto.Cipher.doFinal N/A N/A

Processes

com.wentwellim

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.42:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 sicakdanbeynimyandii2.com udp
US 1.1.1.1:53 sicaklarbittikurtldk6215.com udp
US 1.1.1.1:53 cehennemdirloo34.com udp
US 1.1.1.1:53 havacerinlii34.com udp
US 1.1.1.1:53 selamcanoonaber.site udp
US 1.1.1.1:53 sicaktanbayilcam52.com udp
US 1.1.1.1:53 hava540derece.com udp
US 1.1.1.1:53 havasarinliyorla234.com udp
US 1.1.1.1:53 pikniktupu2534.com udp
US 1.1.1.1:53 otururkenterliyorum42.com udp
US 74.119.239.234:443 otururkenterliyorum42.com tcp
US 74.119.239.234:443 otururkenterliyorum42.com tcp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.201.110:443 android.apis.google.com tcp
US 74.119.239.234:443 otururkenterliyorum42.com tcp
US 74.119.239.234:443 otururkenterliyorum42.com tcp
US 1.1.1.1:53 robetcotraslros5234.com udp
US 1.1.1.1:53 slmla6242nbr.com udp
RU 193.143.1.24:443 slmla6242nbr.com tcp
RU 193.143.1.24:443 slmla6242nbr.com tcp
RU 193.143.1.24:443 slmla6242nbr.com tcp

Files

/data/data/com.wentwellim/cache/kaxuxkiiibmcmgl

MD5 0547d1d2e04e54a9563dadf77f505ec4
SHA1 b835475f3aa673a19c0e6fad21c6ebc91a00f529
SHA256 d7cfdd5832613f92aa128dd6bc62d55af5451cb26eb1845714558bb47728de98
SHA512 26d19e6b96967a94a2c7e5aefdb3963c03b1ad355e8457c6674f9a57d3246b9e489ce76cacd64e7b0a7c807d8b8c50b545a0f348dee059cb155500fedcd1bdcd

/data/data/com.wentwellim/cache/oat/kaxuxkiiibmcmgl.cur.prof

MD5 eeafb0211b40ec60a7db8c071514bfd6
SHA1 b5bc0bf0996a53115ab7c89fdae931eaa9c74952
SHA256 a9cbe97e91a10d27e6dffaf735e407ef8de7a0da57cced0a515c73dc206208f9
SHA512 872884279e32af9acc418a1c5c37de0d3f82eed3b5afc100acd8e93bdec57a689f846ed97cffa2d7e88de137cab224d31fdc6051f095e4d3c0817ca10ec6df49

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-26 22:00

Reported

2024-08-26 22:03

Platform

android-x64-arm64-20240624-en

Max time network

163s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.206:443 tcp
GB 142.250.187.206:443 tcp
BE 142.251.173.188:5228 tcp
GB 216.58.204.74:443 tcp
GB 142.250.200.10:443 tcp
GB 142.250.200.10:443 tcp
GB 216.58.204.74:443 tcp
GB 216.58.204.74:443 tcp
GB 142.250.180.10:443 tcp
GB 142.250.180.14:443 tcp
GB 142.250.200.34:443 tcp
GB 142.250.179.234:443 tcp
GB 172.217.169.10:443 tcp
GB 142.250.187.227:443 tcp
GB 142.250.179.228:443 tcp
US 1.1.1.1:53 www.google.com udp
GB 216.58.204.68:443 www.google.com tcp
US 1.1.1.1:53 accounts.google.com udp
BE 142.251.168.84:443 accounts.google.com tcp
US 1.1.1.1:53 www.youtube.com udp
GB 172.217.169.14:443 www.youtube.com udp
GB 172.217.169.14:443 www.youtube.com tcp
GB 172.217.169.14:443 www.youtube.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
GB 172.217.16.238:443 android.apis.google.com tcp
GB 172.217.16.238:443 android.apis.google.com tcp
GB 172.217.169.14:443 www.youtube.com udp
GB 172.217.169.14:443 www.youtube.com tcp
GB 172.217.169.14:443 www.youtube.com tcp
US 1.1.1.1:53 www.google.com udp
US 1.1.1.1:53 www.google.com udp
GB 172.217.169.4:443 www.google.com udp
GB 172.217.169.4:443 www.google.com tcp
GB 172.217.169.4:443 www.google.com tcp
US 1.1.1.1:53 mdh-pa.googleapis.com udp
US 1.1.1.1:53 mdh-pa.googleapis.com udp
US 1.1.1.1:53 accounts.google.com udp
US 1.1.1.1:53 accounts.google.com udp
GB 64.233.166.84:443 accounts.google.com tcp
GB 64.233.166.84:443 accounts.google.com tcp
US 1.1.1.1:53 update.googleapis.com udp

Files

N/A