Malware Analysis Report

2024-09-09 13:47

Sample ID 240530-1wr1bsah8v
Target 83aa50ea8f4810c7e4090b1a1fd4982fff75ca479aaf094b0cc5134831e985b6.bin
SHA256 83aa50ea8f4810c7e4090b1a1fd4982fff75ca479aaf094b0cc5134831e985b6
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

83aa50ea8f4810c7e4090b1a1fd4982fff75ca479aaf094b0cc5134831e985b6

Threat Level: Known bad

The file 83aa50ea8f4810c7e4090b1a1fd4982fff75ca479aaf094b0cc5134831e985b6.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

Makes use of the framework's Accessibility service

Requests modifying system settings.

Removes its main activity from the application launcher

Prevents application removal

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

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

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

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

Loads dropped Dex/Jar

Queries the mobile country code (MCC)

Requests dangerous framework permissions

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

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

Reads information about phone network operator.

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-30 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 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

2024-05-30 22:00

Reported

2024-05-30 22:03

Platform

android-x86-arm-20240514-en

Max time kernel

46s

Max time network

139s

Command Line

com.selflistje

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

Requests modifying system settings.

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.selflistje/cache/efupumattqqeskt N/A N/A
N/A /data/user/0/com.selflistje/cache/efupumattqqeskt 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.selflistje

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 www.google.com udp
GB 172.217.16.228:443 www.google.com tcp
US 1.1.1.1:53 www.ip-api.com udp
US 1.1.1.1:53 moneyeurolandbabis.net udp
US 208.95.112.1:80 www.ip-api.com tcp
US 1.1.1.1:53 moneyeurolandscans.net udp
US 1.1.1.1:53 moneyeuroland.net udp
BG 79.110.49.131:443 moneyeuroland.net tcp
BG 79.110.49.131:443 moneyeuroland.net tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.206:443 android.apis.google.com tcp
GB 172.217.169.66:443 tcp
GB 142.250.179.238:443 tcp
BG 79.110.49.131:443 moneyeuroland.net tcp
BG 79.110.49.131:443 moneyeuroland.net tcp

Files

/data/data/com.selflistje/cache/efupumattqqeskt

MD5 0ae5faa236183b3a98c2d69e6496354f
SHA1 6a9ad2fb61b54d5332c2ab328132ac3968ca7a1d
SHA256 91161fd11bac6240623e4602f57126a619372b2928f02becc0900f91127ba78f
SHA512 c250d9444917e96fb83c815685a94a2a1b70e9075efe9f7f557ea6398175f7b258e4bb4b9fb5f79f63c463cf631cec3e916239b6bcbe4e2f3ca996fc5c724fb2

/data/data/com.selflistje/cache/oat/efupumattqqeskt.cur.prof

MD5 6abf6a1a088f9eddb54d199976e373e8
SHA1 196161c4fb51b4f3e96ede580547c4f27d6e3f92
SHA256 42435da8653fbd933881082cc76502a8f2cb19816b719ea5425f68befd2787b2
SHA512 5a7b6e48e87b95f389a5793a87f91f0a2766712e198bde87a624e47dcdc1ebcb2b9eccea64ee35230d9971f6aa1fc8efa6c8677134f0efc75ba855363349a0e7

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 22:00

Reported

2024-05-30 22:03

Platform

android-x64-arm64-20240514-en

Max time kernel

179s

Max time network

153s

Command Line

com.selflistje

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

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 modifying system settings.

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

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.selflistje/cache/efupumattqqeskt N/A N/A
N/A /data/user/0/com.selflistje/cache/efupumattqqeskt 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

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

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.selflistje

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.178.14:443 tcp
GB 142.250.178.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.187.238:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.178.8:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 moneyeurolandbebek.net udp
BG 79.110.49.131:443 moneyeurolandbebek.net tcp
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 moneyeurolandscans.net udp
US 1.1.1.1:53 moneyeuroland.net udp
BG 79.110.49.131:443 moneyeuroland.net tcp
GB 142.250.187.196:443 tcp
GB 142.250.187.196:443 tcp
BG 79.110.49.131:443 moneyeuroland.net tcp
BG 79.110.49.131:443 moneyeuroland.net tcp

Files

/data/user/0/com.selflistje/cache/efupumattqqeskt

MD5 0ae5faa236183b3a98c2d69e6496354f
SHA1 6a9ad2fb61b54d5332c2ab328132ac3968ca7a1d
SHA256 91161fd11bac6240623e4602f57126a619372b2928f02becc0900f91127ba78f
SHA512 c250d9444917e96fb83c815685a94a2a1b70e9075efe9f7f557ea6398175f7b258e4bb4b9fb5f79f63c463cf631cec3e916239b6bcbe4e2f3ca996fc5c724fb2

/data/user/0/com.selflistje/cache/oat/efupumattqqeskt.cur.prof

MD5 bb6bc0b6f81895f67931d627272bdf7d
SHA1 49a3097fece661070d751b0e8cd4a11f8d3f2e2f
SHA256 c070cece9279184898f18af88c11ebff9f59e3c6b4998ee7427057e80a6df8c5
SHA512 5d26a34aaf043ba9b848b20496c78bdd46e3bf789e225080e5fbce26d3897c382a865a0d92fb6ad6d453f21ce2fb2b4205650e2f905e1530802355a9119205b4