Malware Analysis Report

2024-09-09 13:43

Sample ID 240503-geyxrsaf32
Target e862c84af8803294b1e643dfb44addf23b2b53b8c244cf94c5d51c8fa5e24c40.bin
SHA256 e862c84af8803294b1e643dfb44addf23b2b53b8c244cf94c5d51c8fa5e24c40
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

e862c84af8803294b1e643dfb44addf23b2b53b8c244cf94c5d51c8fa5e24c40

Threat Level: Known bad

The file e862c84af8803294b1e643dfb44addf23b2b53b8c244cf94c5d51c8fa5e24c40.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

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

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

Prevents application removal

Removes its main activity from the application launcher

Queries the phone number (MSISDN for GSM devices)

Makes use of the framework's foreground persistence service

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

Loads dropped Dex/Jar

Queries the mobile country code (MCC)

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

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

Acquires the wake lock

Declares services with permission to bind to the system

Requests dangerous framework permissions

Declares broadcast receivers with permission to handle system events

Reads information about phone network operator.

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-03 05:43

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 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 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
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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-03 05:43

Reported

2024-05-03 05:49

Platform

android-x86-arm-20240221-en

Max time kernel

147s

Max time network

147s

Command Line

com.broughtusfi

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A 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

Prevents application removal

evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction 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

Removes its main activity from the application launcher

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

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.broughtusfi/cache/esshglmxtck N/A N/A
N/A /data/user/0/com.broughtusfi/cache/esshglmxtck 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 phone number (MSISDN for GSM devices)

discovery

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

Acquires the wake lock

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

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.broughtusfi

Network

Country Destination Domain Proto
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 172.217.169.74:443 semanticlocation-pa.googleapis.com tcp
US 1.1.1.1:53 moneycsffhgm7.shop udp
US 1.1.1.1:53 moneymaskalandd.shop udp
US 1.1.1.1:53 www.ip-api.com udp
US 1.1.1.1:53 moneycsasfasfh.shop udp
US 208.95.112.1:80 www.ip-api.com tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp
GB 142.250.179.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 142.250.200.42:443 semanticlocation-pa.googleapis.com tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp

Files

/data/data/com.broughtusfi/cache/esshglmxtck

MD5 96cc41d8ac4dfd0dfd302772b1e6160e
SHA1 f7600b2fc002b90290b692240558a6cf5a030551
SHA256 f2c549f4f82fb00d8852c5aaeb6ad71e873548730592ab64f6ee6edaa379de49
SHA512 35fe6a4e2ced3d5df096c6b3aea54df305f0c4758b7c514d3743a98b092976dfe2feaa4edbf369209f83ca6990a068c5550d014ed7070b669576df596da0712a

/data/data/com.broughtusfi/cache/oat/esshglmxtck.cur.prof

MD5 94e2f40950f63ce4687429c04a5d56c8
SHA1 458b5cd984e2d66428fd67c64adb92d27d06537a
SHA256 feb159e54a159268cf05736932ecc22facc47dc743137bd9bf0c0a566e2de9b3
SHA512 17a54a93d25b6e9a4ea8ed60e9e7dbc27220e8cc64c24681e131ad98506d65f1dac23ccdb8736400a3fcb547c7d1a4eff2804b5d8084637ad201d0760e5a05de

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 05:43

Reported

2024-05-03 05:48

Platform

android-x64-20240221-en

Max time kernel

66s

Max time network

140s

Command Line

com.broughtusfi

Signatures

Octo

banker trojan infostealer rat octo

Octo payload

Description Indicator Process Target
N/A N/A 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

Prevents application removal

evasion
Description Indicator Process Target
Framework service call android.accessibilityservice.IAccessibilityServiceConnection.performGlobalAction 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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.broughtusfi/cache/esshglmxtck N/A N/A
N/A /data/user/0/com.broughtusfi/cache/esshglmxtck 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 phone number (MSISDN for GSM devices)

discovery

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

Acquires the wake lock

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

Reads information about phone network operator.

discovery

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.broughtusfi

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 172.217.16.232:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 moneycsasfasfh.shop udp
US 1.1.1.1:53 www.ip-api.com udp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 33moneycshlazim33.shop udp
US 1.1.1.1:53 moneymaskalandd.shop udp
AM 85.209.133.184:443 moneymaskalandd.shop tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.200.14:443 android.apis.google.com tcp
GB 216.58.201.100:443 tcp
GB 216.58.201.100:443 tcp
GB 172.217.169.78:443 tcp
GB 142.250.200.34:443 tcp
GB 142.250.200.35:443 tcp
US 1.1.1.1:53 g.tenor.com udp
GB 216.58.212.202:443 g.tenor.com tcp
AM 85.209.133.184:443 moneymaskalandd.shop tcp

Files

/data/data/com.broughtusfi/cache/esshglmxtck

MD5 96cc41d8ac4dfd0dfd302772b1e6160e
SHA1 f7600b2fc002b90290b692240558a6cf5a030551
SHA256 f2c549f4f82fb00d8852c5aaeb6ad71e873548730592ab64f6ee6edaa379de49
SHA512 35fe6a4e2ced3d5df096c6b3aea54df305f0c4758b7c514d3743a98b092976dfe2feaa4edbf369209f83ca6990a068c5550d014ed7070b669576df596da0712a

/data/data/com.broughtusfi/cache/oat/esshglmxtck.cur.prof

MD5 2845304a1e9a42963d28dcb75ef16e77
SHA1 8952d8713efd2c5a82735fb93e18f66b5819643e
SHA256 845b5dd736e89a31f08b07d7bbe74de1e0884892730e864057f2c06ef961b0c6
SHA512 aa13ea3ae7c08a18abd4abd670d5510bf65298674097332c012598495c4ba283a307ab12bef4b6a6f42a723453f70cc49ec03a8ed152a2a22b1212833110dbc6