Malware Analysis Report

2024-09-09 13:52

Sample ID 240618-17x1qaxgmf
Target 51ea1d72d18b198ad84c934a2857a55afbb220e4688d0c4fce44c654c469feb4.bin
SHA256 51ea1d72d18b198ad84c934a2857a55afbb220e4688d0c4fce44c654c469feb4
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 Matrix

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

51ea1d72d18b198ad84c934a2857a55afbb220e4688d0c4fce44c654c469feb4

Threat Level: Known bad

The file 51ea1d72d18b198ad84c934a2857a55afbb220e4688d0c4fce44c654c469feb4.bin was found to be: Known bad.

Malicious Activity Summary

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

Octo payload

Octo

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)

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

Loads dropped Dex/Jar

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Performs UI accessibility actions on behalf of the user

Makes use of the framework's foreground persistence service

Queries the mobile country code (MCC)

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

Requests modifying system settings.

Requests dangerous framework permissions

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

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

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)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-18 22:18

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 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

2024-06-18 22:18

Reported

2024-06-18 22:21

Platform

android-x86-arm-20240611.1-en

Max time kernel

178s

Max time network

136s

Command Line

com.mycarry49

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.mycarry49/cache/hqdtsgxwfcheo N/A N/A
N/A /data/user/0/com.mycarry49/cache/hqdtsgxwfcheo 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.mycarry49

Network

Country Destination Domain Proto
GB 172.217.169.74:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 biricruelidurdursunloo.com udp
US 1.1.1.1:53 gurcistancruell33.com udp
US 1.1.1.1:53 cruelgurcistandaaaa42.com udp
US 1.1.1.1:53 biricruelidurdursunn.com udp
US 1.1.1.1:53 lalagkcvagurcuuuu.com udp
US 1.1.1.1:53 cruelveblack32.com udp
GB 142.250.187.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.180.14:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.179.234:443 semanticlocation-pa.googleapis.com tcp
GB 172.217.169.74:443 semanticlocation-pa.googleapis.com tcp

Files

/data/data/com.mycarry49/cache/hqdtsgxwfcheo

MD5 a5dcbcc33610478010738891b6b02970
SHA1 24c7de75e2e06dcf867ea68f7814bf44f21c3e27
SHA256 9d60bbb040b85072f4ce57e4d0cb898025b847b0eeb547ed3ea7192a65f07f22
SHA512 ef03bb64df8c721a51a5a247356dd29d18422704325eb3688c6600417aed68ec9dcb83742f7160745d49fa04958611500fe0602fd0eb2463473b222cc443dc9d

/data/data/com.mycarry49/cache/oat/hqdtsgxwfcheo.cur.prof

MD5 f65d144878d7c5d14fb216d9aaca0142
SHA1 504cccf89115275d8d1d88a62e3fac101b755a38
SHA256 500cef01b680ca94953d4fccd785bec3cba37105b65cadf12f91323edbac7ba1
SHA512 0d4d24f24582f63f2e9ae039c670a0502aa50e22378c73ca768f6f4acdfe31cf5a815f8fdd72deb88553a96b5f8cca0e93a33d14762e7aee74eb658cd1c93b0e

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 22:18

Reported

2024-06-18 22:21

Platform

android-x64-arm64-20240611.1-en

Max time kernel

179s

Max time network

132s

Command Line

com.mycarry49

Signatures

Octo

banker trojan infostealer rat 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.mycarry49/cache/hqdtsgxwfcheo N/A N/A
N/A /data/user/0/com.mycarry49/cache/hqdtsgxwfcheo 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

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.mycarry49

Network

Country Destination Domain Proto
GB 142.250.187.206:443 tcp
GB 142.250.187.206:443 tcp
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 lalagkcvagurcuuuu.com udp
US 1.1.1.1:53 cruelgurcistandaaaa42.com udp
US 1.1.1.1:53 biricruelidurdursunn.com udp
US 1.1.1.1:53 biricruelidurdursunloo.com udp
US 1.1.1.1:53 gurcistancruell33.com udp
US 1.1.1.1:53 cruelveblack32.com udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.204.72:443 ssl.google-analytics.com tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp

Files

/data/data/com.mycarry49/cache/hqdtsgxwfcheo

MD5 a5dcbcc33610478010738891b6b02970
SHA1 24c7de75e2e06dcf867ea68f7814bf44f21c3e27
SHA256 9d60bbb040b85072f4ce57e4d0cb898025b847b0eeb547ed3ea7192a65f07f22
SHA512 ef03bb64df8c721a51a5a247356dd29d18422704325eb3688c6600417aed68ec9dcb83742f7160745d49fa04958611500fe0602fd0eb2463473b222cc443dc9d

/data/data/com.mycarry49/cache/oat/hqdtsgxwfcheo.cur.prof

MD5 8d969a4526c71805ee28f6d24a0840ed
SHA1 b96342dd522ab36facc49940c04f92a6b3c9f180
SHA256 5479c3f9f55c321b68627a802106a58ea38913e0d1b99317fab43b054b31620d
SHA512 2018bdc62561a0e133f09bdb0b16e386a29f08a8549f371d3ddb2549bfe0ba79e81d4dd3a772f05803e170656b141b6e0b78ff37e5e56c2ef1bc831a0a45f2e2