Malware Analysis Report

2024-11-13 17:37

Sample ID 241109-3x7taavenf
Target 3aba853c6fe6d86056b16f57b483ef446374e9d6253f45321cbfe19014c4c7e6.bin
SHA256 3aba853c6fe6d86056b16f57b483ef446374e9d6253f45321cbfe19014c4c7e6
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat 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

3aba853c6fe6d86056b16f57b483ef446374e9d6253f45321cbfe19014c4c7e6

Threat Level: Known bad

The file 3aba853c6fe6d86056b16f57b483ef446374e9d6253f45321cbfe19014c4c7e6.bin was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Octo

Octo payload

Octo family

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

Queries the phone number (MSISDN for GSM devices)

Obtains sensitive information copied to the device clipboard

Makes use of the framework's Accessibility service

Loads dropped Dex/Jar

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

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

Queries the mobile country code (MCC)

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

Declares services with permission to bind to the system

Makes use of the framework's foreground persistence service

Requests dangerous framework permissions

Reads information about phone network operator.

Uses Crypto APIs (Might try to encrypt user data)

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

Checks CPU information

Checks memory information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 23:54

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 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 receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS 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 an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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

2024-11-09 23:54

Reported

2024-11-09 23:57

Platform

android-x86-arm-20240910-en

Max time kernel

149s

Max time network

151s

Command Line

com.nbluetooth38setupfilter

Signatures

Octo

banker trojan infostealer rat octo

Octo family

octo

Octo payload

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A Anonymous-DexFile@0xc7c78000-0xc7cfbab8 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

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 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

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

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.nbluetooth38setupfilter

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 35af25b963051870df592f95d304db05.us udp
RO 64.7.198.190:443 35af25b963051870df592f95d304db05.us tcp
GB 142.250.200.46:443 tcp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
GB 216.58.212.202:443 tcp
GB 142.250.178.3:80 tcp
GB 216.58.212.228:443 tcp
GB 172.217.16.226:443 tcp

Files

/data/data/com.nbluetooth38setupfilter/files/.z

MD5 4e73947cabb5db3f92ca85004981b754
SHA1 6d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA256 6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512 be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Anonymous-DexFile@0xc7c78000-0xc7cfbab8

MD5 160843b67f5462d817ffad92f84e402f
SHA1 5d9216c1a2abd3e24a810fc8ed07899a948acb55
SHA256 61b5fc3d6c43263371ce3a7df5994e6341c6909db6462673930664068aa8b3a7
SHA512 d6dc41b86f31ef3659862b8f726979513bb7f85e0c2e7c70b0408dd09972d0c7043a1df18618ab4efd55943585856d1437fe0ffa9c990bee8195770b929efb5b

/data/data/com.nbluetooth38setupfilter/.global.com.nbluetooth38setupfilter

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

/data/data/com.nbluetooth38setupfilter/.global.com.nbluetooth38setupfilter

MD5 a205b70f65a0889fee9b371ad8e82f15
SHA1 ba1f6c339418c2c46685c11da063f5641cd49ef3
SHA256 6a00ddf9dbc7ffb28a511b0ba67bdae50705e7cfb81009659d8758f5e2bdf9e7
SHA512 74e418bf8f3f723f024ab1305061f612d7c4dc27855c1637b53ecec8eccf2fea104e8ee145f249dc85f259cfba34c90dfd3c104422a07f7607ee535450b2e7f7

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 23:54

Reported

2024-11-09 23:57

Platform

android-x64-arm64-20240910-en

Max time kernel

149s

Max time network

152s

Command Line

com.nbluetooth38setupfilter

Signatures

Octo

banker trojan infostealer rat octo

Octo family

octo

Octo payload

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.nbluetooth38setupfilter/[email protected] 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

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener 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

Queries the mobile country code (MCC)

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

Reads information about phone network operator.

discovery

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

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

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.nbluetooth38setupfilter

Network

Country Destination Domain Proto
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.201.106:443 tcp
N/A 224.0.0.251:5353 udp
GB 216.58.204.78:443 android.apis.google.com tcp
US 1.1.1.1:53 www.youtube.com udp
GB 216.58.212.206:443 www.youtube.com udp
GB 216.58.212.206:443 www.youtube.com tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.212.206:443 android.apis.google.com tcp
US 1.1.1.1:53 bee12d2e5261ff047dff65b40fab2bff.ua udp
US 1.1.1.1:53 e97b03c89dc3c5f03fd5c6f8cbd21ea3.org udp
US 1.1.1.1:53 42faabc6d136101ae7c8c9ad15bfcd65.ir udp
US 1.1.1.1:53 c4eb330964dda851943cbfa4ceeadaf9.info udp
RO 64.7.198.190:443 c4eb330964dda851943cbfa4ceeadaf9.info tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.213.8:443 ssl.google-analytics.com tcp
US 216.239.36.223:443 tcp
GB 142.250.187.226:443 tcp
GB 142.250.200.38:443 tcp
GB 172.217.169.66:443 tcp
US 216.239.36.223:443 tcp
GB 142.250.200.1:443 tcp
GB 216.58.212.193:443 tcp
US 216.239.36.223:443 tcp
US 216.239.36.223:443 tcp

Files

/data/data/com.nbluetooth38setupfilter/files/.z

MD5 77dc50489b9323274732d27dc8a4e803
SHA1 0e02a3595b62489d0739d771881da8604d117c65
SHA256 c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820
SHA512 0684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58

/data/user/0/com.nbluetooth38setupfilter/[email protected]

MD5 160843b67f5462d817ffad92f84e402f
SHA1 5d9216c1a2abd3e24a810fc8ed07899a948acb55
SHA256 61b5fc3d6c43263371ce3a7df5994e6341c6909db6462673930664068aa8b3a7
SHA512 d6dc41b86f31ef3659862b8f726979513bb7f85e0c2e7c70b0408dd09972d0c7043a1df18618ab4efd55943585856d1437fe0ffa9c990bee8195770b929efb5b

/data/data/com.nbluetooth38setupfilter/oat/x86_64/[email protected]

MD5 78e715e2b62d717962cfe93c74c4bc31
SHA1 db18b344ee4940e665df49d815817398d38cb7b5
SHA256 f727ef00bcf55dc4d385cc25a4ef36f03e28cfb93d11662508ac46a5c69dd1a5
SHA512 c6b0e140f5c377e8af63e334ae9928af470de873299b959915b86b526966831bd597951581ed153837ceaddb42fd873dd686b622f7fb689e5c10e5edda8cdfa0

/data/data/com.nbluetooth38setupfilter/.global.com.nbluetooth38setupfilter

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

/data/data/com.nbluetooth38setupfilter/.global.com.nbluetooth38setupfilter

MD5 a205b70f65a0889fee9b371ad8e82f15
SHA1 ba1f6c339418c2c46685c11da063f5641cd49ef3
SHA256 6a00ddf9dbc7ffb28a511b0ba67bdae50705e7cfb81009659d8758f5e2bdf9e7
SHA512 74e418bf8f3f723f024ab1305061f612d7c4dc27855c1637b53ecec8eccf2fea104e8ee145f249dc85f259cfba34c90dfd3c104422a07f7607ee535450b2e7f7