Malware Analysis Report

2024-11-13 17:37

Sample ID 241109-1x9lrswmaj
Target bea10c7b79fdd266592c0f0ef356c6fce504329cbb42fb52ff46d5638e5c36d5.bin
SHA256 bea10c7b79fdd266592c0f0ef356c6fce504329cbb42fb52ff46d5638e5c36d5
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

bea10c7b79fdd266592c0f0ef356c6fce504329cbb42fb52ff46d5638e5c36d5

Threat Level: Known bad

The file bea10c7b79fdd266592c0f0ef356c6fce504329cbb42fb52ff46d5638e5c36d5.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 family

Octo payload

Removes its main activity from the application launcher

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

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

Makes use of the framework's foreground persistence service

Requests dangerous framework permissions

Acquires the wake lock

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

Reads information about phone network operator.

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

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

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

Requests modifying system settings.

Queries the mobile country code (MCC)

Performs UI accessibility actions on behalf of the user

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-09 22:02

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 write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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 applications to use exact alarm APIs. android.permission.SCHEDULE_EXACT_ALARM 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 22:02

Reported

2024-11-09 22:05

Platform

android-x86-arm-20240624-en

Max time kernel

143s

Max time network

136s

Command Line

com.blackcorrecta

Signatures

Octo

banker trojan infostealer rat octo

Octo family

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.blackcorrecta/cache/kqywnopvukvshf N/A N/A
N/A /data/user/0/com.blackcorrecta/cache/kqywnopvukvshf 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.blackcorrecta

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 64b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 894b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 74b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 34b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 7bb13903074567453981d0595033c23.com udp
US 1.1.1.1:53 94b64139030754567453981d0595033c23.com udp
MD 213.159.75.106:443 7bb13903074567453981d0595033c23.com tcp
US 1.1.1.1:53 4b6413903074567453981d0595033c23.com udp
MD 213.159.75.106:443 4b6413903074567453981d0595033c23.com tcp
GB 216.58.204.78:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
MD 213.159.75.106:443 4b6413903074567453981d0595033c23.com tcp
MD 213.159.75.106:443 4b6413903074567453981d0595033c23.com tcp

Files

/data/data/com.blackcorrecta/cache/kqywnopvukvshf

MD5 1c5ba91d4197d5308f40041bc3131232
SHA1 c7b1148ffea103fe39a6fa8eb3a319ceb280e4cc
SHA256 89eae08c3f20664fa526495b05882481ba509bd72fb6ecf81cc2c6d29c3b816e
SHA512 5277f1591fb83e9095c78c42d7d4ece2672fc44f620c314bb8d5527451d544fe4c2e1745f4bbdba1d6b8c2766b7c78cbb2f7b92cb1b713e602a4c0c31e8b87d0

/data/data/com.blackcorrecta/cache/oat/kqywnopvukvshf.cur.prof

MD5 a32a7db9348c670bccdb0c97121fbf89
SHA1 24aa088ac75617749c76778d1fab030ba92be6ab
SHA256 2f4fce13fe4269b88758a73e0427255124cbf8e6ce7e14690792cac326fabf98
SHA512 2b0c74b14ca027a7b09132c96821b821981edc60927bae374f57bcdf9bd53cb0ffb2938898308c1f1dde6a40cc85dbff1b040b26cc51fac281880dc9e6005fa9

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 22:02

Reported

2024-11-09 22:05

Platform

android-33-x64-arm64-20240624-en

Max time kernel

148s

Max time network

148s

Command Line

com.blackcorrecta

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.blackcorrecta/cache/kqywnopvukvshf 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.findAccessibilityNodeInfosByViewId N/A N/A
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.findAccessibilityNodeInfoByAccessibilityId 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

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 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

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.blackcorrecta

Network

Country Destination Domain Proto
GB 142.250.187.196:443 udp
GB 142.250.187.196:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 94b64139030754567453981d0595033c23.com udp
US 1.1.1.1:53 34b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 4b6413903074567453981d0595033c23.com udp
MD 213.159.75.106:443 4b6413903074567453981d0595033c23.com tcp
US 1.1.1.1:53 94b641553903074567453981d0595033c23.com udp
US 1.1.1.1:53 74b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 94b64139033074567453981d0595033c23.com udp
US 1.1.1.1:53 64b6413903074567453981d0595033c23.com udp
US 1.1.1.1:53 7bb13903074567453981d0595033c23.com udp
MD 213.159.75.106:443 7bb13903074567453981d0595033c23.com tcp
GB 216.58.212.238:443 tcp
GB 216.58.212.238:443 tcp
US 1.1.1.1:53 rcs-acs-tmo-us.jibe.google.com udp
US 216.239.36.155:443 rcs-acs-tmo-us.jibe.google.com tcp
US 1.1.1.1:53 remoteprovisioning.googleapis.com udp
GB 142.250.179.234:443 remoteprovisioning.googleapis.com tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 udp
GB 142.250.187.196:443 tcp
GB 172.217.169.68:443 tcp
GB 172.217.169.68:443 tcp
GB 142.250.187.196:443 udp
GB 142.250.187.227:443 tcp
MD 213.159.75.106:443 7bb13903074567453981d0595033c23.com tcp
MD 213.159.75.106:443 7bb13903074567453981d0595033c23.com tcp

Files

/data/data/com.blackcorrecta/cache/kqywnopvukvshf

MD5 1c5ba91d4197d5308f40041bc3131232
SHA1 c7b1148ffea103fe39a6fa8eb3a319ceb280e4cc
SHA256 89eae08c3f20664fa526495b05882481ba509bd72fb6ecf81cc2c6d29c3b816e
SHA512 5277f1591fb83e9095c78c42d7d4ece2672fc44f620c314bb8d5527451d544fe4c2e1745f4bbdba1d6b8c2766b7c78cbb2f7b92cb1b713e602a4c0c31e8b87d0

/data/data/com.blackcorrecta/cache/oat/kqywnopvukvshf.cur.prof

MD5 4eac6762a02b5697d09d69d1d2c5788b
SHA1 9cb39b40cb9e747b2175c95b6a5d2669734425d6
SHA256 c9525ec53c6f8a3c68d0abfd1817a992f7a5467637a4ecc6c5b02028256194a9
SHA512 7e8c60ea67be6b3e2839ae7162562def9b540907a36ac2f6b9e91988512465b95d296b6476eedaa565469ac789d700cf971b75788ff43e4782e8ebf8dbb3fb18