Malware Analysis Report

2024-12-01 03:10

Sample ID 241111-ln5twsxgme
Target 3f99aad460f24330fce28b40f83d9065c0af0b5e30a30064ff0f1e187f08b978
SHA256 3f99aad460f24330fce28b40f83d9065c0af0b5e30a30064ff0f1e187f08b978
Tags
octo banker collection credential_access discovery evasion impact infostealer persistence rat 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 Overview

score
10/10

SHA256

3f99aad460f24330fce28b40f83d9065c0af0b5e30a30064ff0f1e187f08b978

Threat Level: Known bad

The file 3f99aad460f24330fce28b40f83d9065c0af0b5e30a30064ff0f1e187f08b978 was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Octo family

Octo

Octo payload

Loads dropped Dex/Jar

Makes use of the framework's Accessibility service

Queries the phone number (MSISDN for GSM devices)

Checks Android system properties for emulator presence.

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

Acquires the wake lock

Attempts to obfuscate APK file format

Queries the mobile country code (MCC)

Declares broadcast receivers with permission to handle system events

Requests dangerous framework permissions

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

Declares services with permission to bind to the system

Makes use of the framework's foreground persistence service

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

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

Uses Crypto APIs (Might try to encrypt user data)

Checks CPU information

Checks memory information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-11 09:41

Signatures

Attempts to obfuscate APK file format

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 record audio. android.permission.RECORD_AUDIO 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 access any geographic locations persisted in the user's shared collection. android.permission.ACCESS_MEDIA_LOCATION N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an application to read image or video files from external storage that a user has selected via the permission prompt photo picker. android.permission.READ_MEDIA_VISUAL_USER_SELECTED N/A N/A
Required to be able to access the camera device. android.permission.CAMERA N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows an application to read image files from external storage. android.permission.READ_MEDIA_IMAGES 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 read video files from external storage. android.permission.READ_MEDIA_VIDEO N/A N/A
Allows read access to the device's phone number(s). android.permission.READ_PHONE_NUMBERS N/A N/A
Allows an application to receive SMS messages. android.permission.RECEIVE_SMS N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO N/A N/A
Allows an application a broad access to external storage in scoped storage. android.permission.MANAGE_EXTERNAL_STORAGE N/A N/A
Allows an app to create windows using the type LayoutParams.TYPE_APPLICATION_OVERLAY, shown on top of all other apps. android.permission.SYSTEM_ALERT_WINDOW N/A N/A
Allows an application to read from external storage. android.permission.READ_EXTERNAL_STORAGE N/A N/A
Allows an application to read image or video files from external storage that a user has selected via the permission prompt photo picker. android.permission.READ_MEDIA_VISUAL_USER_SELECTED N/A N/A
Allows an application to read audio files from external storage. android.permission.READ_MEDIA_AUDIO N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows an application to read SMS messages. android.permission.READ_SMS N/A N/A
Allows an app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an application to read video files from external storage. android.permission.READ_MEDIA_VIDEO N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows an application to read or write the system settings. android.permission.WRITE_SETTINGS N/A N/A
Allows an application to access any geographic locations persisted in the user's shared collection. android.permission.ACCESS_MEDIA_LOCATION N/A N/A
Required to be able to connect to paired Bluetooth devices. android.permission.BLUETOOTH_CONNECT N/A N/A
Required to be able to access the camera device. android.permission.CAMERA 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 send SMS messages. android.permission.SEND_SMS N/A N/A
Allows an application to read image files from external storage. android.permission.READ_MEDIA_IMAGES N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-11 09:41

Reported

2024-11-11 09:42

Platform

android-x86-arm-20240624-en

Max time kernel

20s

Max time network

35s

Command Line

com.eproduct_health6

Signatures

Octo

banker trojan infostealer rat octo

Octo family

octo

Octo payload

Description Indicator Process Target
N/A N/A N/A N/A

Checks Android system properties for emulator presence.

evasion
Description Indicator Process Target
Accessed system property key: ro.product.model N/A N/A

Loads dropped Dex/Jar

evasion
Description Indicator Process Target
N/A /data/user/0/com.eproduct_health6/app_west/ttYMB.json N/A N/A
N/A /data/user/0/com.eproduct_health6/app_west/ttYMB.json N/A N/A
N/A Anonymous-DexFile@0xd53f8000-0xd547b7a8 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

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

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

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

Checks CPU information

Description Indicator Process Target
File opened for read /proc/cpuinfo N/A N/A

Checks memory information

Description Indicator Process Target
File opened for read /proc/meminfo N/A N/A

Processes

com.eproduct_health6

/system/bin/dex2oat --instruction-set=x86 --instruction-set-features=ssse3,-sse4.1,-sse4.2,-avx,-avx2,-popcnt --runtime-arg -Xhidden-api-checks --runtime-arg -Xrelocate --boot-image=/system/framework/boot.art --runtime-arg -Xms64m --runtime-arg -Xmx512m --instruction-set-variant=x86 --instruction-set-features=default --inline-max-code-units=0 --compact-dex-level=none --dex-file=/data/user/0/com.eproduct_health6/app_west/ttYMB.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.eproduct_health6/app_west/oat/x86/ttYMB.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 216.58.213.10:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 da4c57f17f611b563f4dfb05b895ac6c.website udp
US 1.1.1.1:53 da4c57f17f611b563f4dfb05b895ac6c.website udp
US 1.1.1.1:53 d3b22d4d3e221fd7000f25bdeb9709d7.xyz udp
US 1.1.1.1:53 d3b22d4d3e221fd7000f25bdeb9709d7.xyz udp
US 1.1.1.1:53 1cd15128f1c79628606957add37aa173.site udp
US 1.1.1.1:53 1cd15128f1c79628606957add37aa173.site udp
US 1.1.1.1:53 fbd224b071f7114051af32538aa42920.online udp
US 1.1.1.1:53 fbd224b071f7114051af32538aa42920.online udp
US 1.1.1.1:53 0cc3d9da28a937a1c4db1a6b011a8668.space udp
US 1.1.1.1:53 0cc3d9da28a937a1c4db1a6b011a8668.space udp
US 1.1.1.1:53 a72713709b1a752576ba8cfda28393c6.top udp
US 1.1.1.1:53 a72713709b1a752576ba8cfda28393c6.top udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 android.apis.google.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 1cd15128f1c79628606957add37aa173.site udp
US 1.1.1.1:53 1cd15128f1c79628606957add37aa173.site udp
US 1.1.1.1:53 0cc3d9da28a937a1c4db1a6b011a8668.space udp
US 1.1.1.1:53 0cc3d9da28a937a1c4db1a6b011a8668.space udp
US 1.1.1.1:53 d3b22d4d3e221fd7000f25bdeb9709d7.xyz udp
US 1.1.1.1:53 d3b22d4d3e221fd7000f25bdeb9709d7.xyz udp
US 1.1.1.1:53 a72713709b1a752576ba8cfda28393c6.top udp
US 1.1.1.1:53 a72713709b1a752576ba8cfda28393c6.top udp
US 1.1.1.1:53 da4c57f17f611b563f4dfb05b895ac6c.website udp
US 1.1.1.1:53 da4c57f17f611b563f4dfb05b895ac6c.website udp
US 1.1.1.1:53 fbd224b071f7114051af32538aa42920.online udp
US 1.1.1.1:53 fbd224b071f7114051af32538aa42920.online udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp

Files

/data/data/com.eproduct_health6/app_west/ttYMB.json

MD5 e8a2934030ea781819c00c54a2d53a9e
SHA1 5f882b5fc0ead8eb7b48d1555fd8208485131238
SHA256 03961e24b17183aeba986016453bae125c86eda2d9df6e7bfc5f5aa36f59af60
SHA512 459760691fbae94bca07eb070ba8d58fd5fec317e315953a770d94cf2dd344a86e4249e28a0d339e6eeb6d5400753968c4f0a14a1b764d18ca6b4137c4674984

/data/data/com.eproduct_health6/app_west/ttYMB.json

MD5 b0c0b6d5a29f2f700705da7027f23e77
SHA1 ed7beee043c77cf25a33874e92a6f4831f459790
SHA256 af9929f59515a4a7f13cbc31ccd818956795496e6af76a1fdda047cf928ec1a4
SHA512 464422552c5475a61b04ad8086af3d9dc5895f69009f7a44402c7f20d0921e678a1f8f52237e6f3574a7c6b1adb46300d8985ba9f5e3f947fd840be6b59cf5a0

/data/user/0/com.eproduct_health6/app_west/ttYMB.json

MD5 0a3437f4faac62f37dc248ff2b8ce0f8
SHA1 a380c2ed2d1b9147e4691c329a9bcba2aaf13200
SHA256 1446e2422798fce725ca770ffbef3fa1d1159de33855f316460f00ade23b3a98
SHA512 3537a201bc324dd0e5f85648bd5f2556c87dae41a085bc8f03f02dfc18540ca23cbd50ab82b9972f45ad3f2be37399f26444a5f888804359e940053d50d1ad43

/data/user/0/com.eproduct_health6/app_west/ttYMB.json

MD5 bbc1f1b42b299d42e6fea5d4a9f60799
SHA1 9536d0fef851738c20cbc875a45fd6ba43b63812
SHA256 61158045ae39df57360693d932cfc1a79623f6e37fa50bce12359881965f538c
SHA512 011bc292174f6919b38d6f5dab71772d8510b611a9dc80756b2464ce40f57d0af0d9182ce5828061ff7cff67351748ef16328b85397686d72c6b349faa42f478

/data/data/com.eproduct_health6/files/.o

MD5 4e73947cabb5db3f92ca85004981b754
SHA1 6d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA256 6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512 be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Anonymous-DexFile@0xd53f8000-0xd547b7a8

MD5 bef7f929a1cb257dddba0ab610ce0e77
SHA1 666463544ab668f88b231853b6681520d20e8df0
SHA256 17fa7aae2679b54f18877081f845902708133ea8c196f9aa1c2a950656520932
SHA512 486efdb746cb4df40c83a0a8b7908c93928b53d42afbf1136731e5f9458ae7e8703ee9f3cd2723934c239322f86cbf90ef95ad1a6b743a1f81b66dfdc677008d

/data/data/com.eproduct_health6/.global.com.eproduct_health6

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c