Malware Analysis Report

2024-09-09 13:41

Sample ID 240618-15w1msxgjg
Target 61f867fc583bfba6e73fcd68dc5b84d0cd6a9f3f98c5c73d870259f4a03da9b9.bin
SHA256 61f867fc583bfba6e73fcd68dc5b84d0cd6a9f3f98c5c73d870259f4a03da9b9
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

61f867fc583bfba6e73fcd68dc5b84d0cd6a9f3f98c5c73d870259f4a03da9b9

Threat Level: Known bad

The file 61f867fc583bfba6e73fcd68dc5b84d0cd6a9f3f98c5c73d870259f4a03da9b9.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

Removes its main activity from the application launcher

Queries the phone number (MSISDN for GSM devices)

Makes use of the framework's Accessibility service

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

Loads dropped Dex/Jar

Acquires the wake lock

Requests modifying system settings.

Performs UI accessibility actions on behalf of the user

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).

Declares broadcast receivers with permission to handle system events

Makes use of the framework's foreground persistence service

Declares services with permission to bind to the system

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

Requests dangerous framework permissions

Reads information about phone network operator.

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-18 22:14

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 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 22:14

Reported

2024-06-18 22:17

Platform

android-x86-arm-20240611.1-en

Max time kernel

179s

Max time network

150s

Command Line

com.paperfeelet

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.paperfeelet/cache/swlpao N/A N/A
N/A /data/user/0/com.paperfeelet/cache/swlpao 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
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.paperfeelet

Network

Country Destination Domain Proto
GB 142.250.180.14:443 tcp
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 dertlikaygisiz04.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
US 1.1.1.1:53 sigaracokhojdur1.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 216.58.213.10:443 semanticlocation-pa.googleapis.com tcp
GB 142.250.187.234:443 semanticlocation-pa.googleapis.com tcp
GB 172.217.16.234:443 semanticlocation-pa.googleapis.com tcp

Files

/data/data/com.paperfeelet/cache/swlpao

MD5 14908e25a8d0ce1f7f807a141cf889e1
SHA1 a38c6c1aa2151fa392571874813cdaf8a3710d82
SHA256 33779a85dec4978cfe1ff5bfec56e163d0682dea27cab68a643b37a1afe53f1b
SHA512 c83b756252fdf6d67d0e82422ae4f7a0f3c37e16413b4b1a396e68f1204e9063b4e0269f9a00362e26004e5fd2b515ebe2a99fe4a36f6e75765b2ca5cbac8667

/data/data/com.paperfeelet/cache/oat/swlpao.cur.prof

MD5 80d9d17874564b075d9fee6afe637822
SHA1 0a63ab5ba285158ffff0f270d0612330c3a84af1
SHA256 e8b5fc3c7337bd4c651b3674593442d649aca858288d43ca79684a62576d5095
SHA512 6198ca50e7a9a5e6c6257599b202d7d49b56f0300dde182477c6fe1e295a93666bf1db998c27339ded24aba10803088147914fac18a0ed9dc46e40714de4094c

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-18 22:14

Reported

2024-06-18 22:17

Platform

android-33-x64-arm64-20240611.1-en

Max time kernel

179s

Max time network

176s

Command Line

com.paperfeelet

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.paperfeelet/cache/swlpao 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.paperfeelet

Network

Country Destination Domain Proto
GB 172.217.169.68:443 udp
GB 172.217.169.68:443 udp
BE 142.250.110.188:5228 tcp
GB 172.217.16.228:443 tcp
N/A 224.0.0.251:5353 udp
GB 216.58.212.234:443 udp
GB 216.58.212.234:443 tcp
US 1.1.1.1:53 sigaracokhojdur1.com udp
US 1.1.1.1:53 dertlikaygisiz04.com udp
US 1.1.1.1:53 kaygisizamamutlu04.com udp
US 1.1.1.1:53 mamudoilekeyfyap.com udp
US 1.1.1.1:53 mamudoiledostadogru.com udp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 172.217.169.68:443 udp
GB 172.217.169.68:443 tcp
GB 172.217.169.68:443 tcp
GB 142.250.179.228:443 udp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
GB 142.250.179.228:443 tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 142.250.180.3:443 tcp
US 172.64.41.3:443 udp
GB 142.250.180.3:443 udp
US 1.1.1.1:53 remoteprovisioning.googleapis.com udp
GB 172.217.169.42:443 remoteprovisioning.googleapis.com tcp
GB 216.58.212.227:443 tcp

Files

/data/data/com.paperfeelet/cache/swlpao

MD5 14908e25a8d0ce1f7f807a141cf889e1
SHA1 a38c6c1aa2151fa392571874813cdaf8a3710d82
SHA256 33779a85dec4978cfe1ff5bfec56e163d0682dea27cab68a643b37a1afe53f1b
SHA512 c83b756252fdf6d67d0e82422ae4f7a0f3c37e16413b4b1a396e68f1204e9063b4e0269f9a00362e26004e5fd2b515ebe2a99fe4a36f6e75765b2ca5cbac8667

/data/data/com.paperfeelet/cache/oat/swlpao.cur.prof

MD5 931be1007e5a9993fb8c72cd0054ca02
SHA1 d4f13a838dfeb2f01cb50d2a5fd20f334bf30fe5
SHA256 79f8872dd4e9be14ac91bce73fb0d3b28a960816a1606080ec9c3f8d8217ae99
SHA512 dad7d8359ea8115f418fcdf82f0d36895be69ef2a9a8b9e967dee87e7e524382f1c8ad4125fe3183f6c85fd0fc1b0b1f040b523eb23e40b2ebb5f107fc6db6b5