Malware Analysis Report

2025-08-10 16:44

Sample ID 241014-v4gxfaxbqb
Target 92569006d7dac7c2cebb9f7d5ce3a81505392e1364fb4061d011053a7e1967c3.zip
SHA256 c1b532a4aa0b92509e257a8a4fb40b02c2f49d5a29dd190ca4ec2b778b97df75
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c1b532a4aa0b92509e257a8a4fb40b02c2f49d5a29dd190ca4ec2b778b97df75

Threat Level: Known bad

The file 92569006d7dac7c2cebb9f7d5ce3a81505392e1364fb4061d011053a7e1967c3.zip was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat trojan

Octo

Octo payload

Loads dropped Dex/Jar

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

Queries the phone number (MSISDN for GSM devices)

Makes use of the framework's Accessibility service

Obtains sensitive information copied to the device clipboard

Reads information about phone network operator.

Acquires the wake lock

Queries the mobile country code (MCC)

Declares broadcast receivers with permission to handle system events

Declares services with permission to bind to the system

Requests dangerous framework permissions

Attempts to obfuscate APK file format

Makes use of the framework's foreground persistence service

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

Uses Crypto APIs (Might try to encrypt user data)

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

Checks CPU information

Checks memory information

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-14 17:32

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 app to access approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Required to be able to access the camera device. android.permission.CAMERA 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 application to receive SMS messages. android.permission.RECEIVE_SMS 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 read video files from external storage. android.permission.READ_MEDIA_VIDEO N/A N/A
Required to be able to connect to paired Bluetooth devices. android.permission.BLUETOOTH_CONNECT N/A N/A
Allows an app to access precise location. android.permission.ACCESS_FINE_LOCATION 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 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 approximate location. android.permission.ACCESS_COARSE_LOCATION N/A N/A
Allows an application to write to external storage. android.permission.WRITE_EXTERNAL_STORAGE N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS N/A N/A
Allows an application to read the user's contacts data. android.permission.READ_CONTACTS 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 audio files from external storage. android.permission.READ_MEDIA_AUDIO N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO 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 access any geographic locations persisted in the user's shared collection. android.permission.ACCESS_MEDIA_LOCATION N/A N/A
Allows an application to read image files from external storage. android.permission.READ_MEDIA_IMAGES N/A N/A
Allows an application to monitor incoming MMS messages. android.permission.RECEIVE_MMS N/A N/A
Allows an application to record audio. android.permission.RECORD_AUDIO N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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 application to read image files from external storage. android.permission.READ_MEDIA_IMAGES N/A N/A
Allows an app to post notifications. android.permission.POST_NOTIFICATIONS 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 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 video files from external storage. android.permission.READ_MEDIA_VIDEO 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 application to read or write the system settings. android.permission.WRITE_SETTINGS 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 app to access precise location. android.permission.ACCESS_FINE_LOCATION N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-14 17:32

Reported

2024-10-14 17:35

Platform

android-x86-arm-20240624-en

Max time kernel

144s

Max time network

131s

Command Line

com.eui_connectivity3

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.eui_connectivity3/app_shoot/Lw.json N/A N/A
N/A /data/user/0/com.eui_connectivity3/app_shoot/Lw.json N/A N/A
N/A Anonymous-DexFile@0xd5a31000-0xd5ab4638 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

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.eui_connectivity3

/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.eui_connectivity3/app_shoot/Lw.json --output-vdex-fd=41 --oat-fd=42 --oat-location=/data/user/0/com.eui_connectivity3/app_shoot/oat/x86/Lw.odex --compiler-filter=quicken --class-loader-context=&

Network

Country Destination Domain Proto
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 3659133ed05d8f025d515d5fbc5d933e.org udp
US 1.1.1.1:53 e25c9c0bb44d14a453c35d988b3dbbcd.com udp
US 1.1.1.1:53 ecf1668f361025aa2176886ac2933e07.info udp
GB 142.250.200.46:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.204.78:443 android.apis.google.com tcp
GB 216.58.213.10:443 semanticlocation-pa.googleapis.com tcp

Files

/data/data/com.eui_connectivity3/app_shoot/Lw.json

MD5 321dd7ea18c0aa0d65b75bc927784a8f
SHA1 1e9e6a71936a067d9f105b130b5b2e66c8aacee4
SHA256 c2713f7532318a80a96f84c55c1de324c84a9294086fbce9f4e8b449620e8cab
SHA512 471e555122ad08aebcc3c392c2886c75c0e2f3f4e0b76b4336e19439179fafdc707e803a91b94a26d185f6d079734dfa1e62b5d9b662b7aea06c52136b9ead43

/data/data/com.eui_connectivity3/app_shoot/Lw.json

MD5 63ebd4d8daf125697412029e92a32cce
SHA1 0e2c3b8d6322845bf3dbb05481d02b0f320291fd
SHA256 a7f016cd0e241fbe4be42098c9ce87988093f9f46c42fe10291c83bc89648d79
SHA512 3faf99d0051cce94b3f3cf820d792af8598a82420ead13bec77a9f123f3a1436d01ffb6d0812385c6152ef2923d22d6eb0de9321ed2efcddcf2f0ca021aa43f6

/data/user/0/com.eui_connectivity3/app_shoot/Lw.json

MD5 a6e5211329a42774b7cf03cd734d22d7
SHA1 ee7c103429b4c51d1a8823ab73cb6c0ee0621f8c
SHA256 d82cd294c3403b0df37def2a826f28df28dad17283a9267fb660dbb013ffefd1
SHA512 e028c421ee24200c2a20fded2650c02576bab97254dd282efd46ef87b5b03d1578f7340ce26c568353aced2c3cbd10a8990ef12c0e773f82c230679f554f0b09

/data/user/0/com.eui_connectivity3/app_shoot/Lw.json

MD5 a05d1388dfe110d05ecab43693ab1a1a
SHA1 f5ce2e29f9604983783b17a3941b8b1b40f904f4
SHA256 cec5cd95a0304d768c288e993e367df613443105dc0f7fcf92b36fa0693cd3a4
SHA512 871525998780d514e727639c21f6d3a7c40d50c12f82f2f73dc15ee3f9c11bd881e552c5cfdf2f737cf2b6c760015ef884dc8ac5893752ed39d41eda79443e1d

/data/data/com.eui_connectivity3/files/.x

MD5 4e73947cabb5db3f92ca85004981b754
SHA1 6d9667fdb0280ed2dcb782b4683e422a51bdc601
SHA256 6db94232e756b90ed437f1bc87dc38cf20fb2e7c7a19a5e40c6c17254b7e234c
SHA512 be8b500a7070af1dfb53b0cf1a7b327dadc4e163a6dad905496ac228c58cd1ed87b054533917924455d35e9b300683ae33e1bcdd91935a5dbae1d693c3e13d69

Anonymous-DexFile@0xd5a31000-0xd5ab4638

MD5 efa97f02f98a44d1be43a89171697100
SHA1 02e6956b620706e2d7a4fcfb29e741e8e13e9743
SHA256 35e45bc9e9f39382a94eebb50edbc834f4f3783adb4fcc56e81d889c4b436a23
SHA512 d6f6b73f34590f1add4143f43eaf2f2c6ebf175fe2c3b99d49a9df6b8c7491ee707142ccfd4c7c2594274ee497407071ee3f1219cdf6f0bdef1e2bda79d6ca46

/data/data/com.eui_connectivity3/.global.com.eui_connectivity3

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-14 17:32

Reported

2024-10-14 17:35

Platform

android-33-x64-arm64-20240624-en

Max time kernel

143s

Max time network

132s

Command Line

com.eui_connectivity3

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.eui_connectivity3/app_shoot/Lw.json N/A N/A
N/A /data/user/0/com.eui_connectivity3/[email protected] 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

Obtains sensitive information copied to the device clipboard

collection credential_access impact
Description Indicator Process Target
Framework service call android.content.IClipboard.addPrimaryClipChangedListener 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

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

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.eui_connectivity3

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.200.36:443 udp
GB 142.250.200.36:443 tcp
US 1.1.1.1:53 e25c9c0bb44d14a453c35d988b3dbbcd.com udp
US 1.1.1.1:53 3659133ed05d8f025d515d5fbc5d933e.org udp
US 1.1.1.1:53 ecf1668f361025aa2176886ac2933e07.info udp
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 rcs-acs-tmo-us.jibe.google.com udp
US 216.239.36.155:443 rcs-acs-tmo-us.jibe.google.com tcp
US 1.1.1.1:53 remoteprovisioning.googleapis.com udp
GB 142.250.187.234:443 remoteprovisioning.googleapis.com tcp
US 172.64.41.3:443 tcp
US 172.64.41.3:443 tcp
GB 142.250.187.227:443 tcp
US 172.64.41.3:443 udp
GB 142.250.187.227:443 udp
GB 142.250.200.36:443 tcp
GB 216.58.204.68:443 tcp
GB 216.58.204.68:443 tcp
GB 142.250.200.36:443 udp
GB 216.58.201.99:443 tcp

Files

/data/data/com.eui_connectivity3/app_shoot/Lw.json

MD5 321dd7ea18c0aa0d65b75bc927784a8f
SHA1 1e9e6a71936a067d9f105b130b5b2e66c8aacee4
SHA256 c2713f7532318a80a96f84c55c1de324c84a9294086fbce9f4e8b449620e8cab
SHA512 471e555122ad08aebcc3c392c2886c75c0e2f3f4e0b76b4336e19439179fafdc707e803a91b94a26d185f6d079734dfa1e62b5d9b662b7aea06c52136b9ead43

/data/data/com.eui_connectivity3/app_shoot/Lw.json

MD5 63ebd4d8daf125697412029e92a32cce
SHA1 0e2c3b8d6322845bf3dbb05481d02b0f320291fd
SHA256 a7f016cd0e241fbe4be42098c9ce87988093f9f46c42fe10291c83bc89648d79
SHA512 3faf99d0051cce94b3f3cf820d792af8598a82420ead13bec77a9f123f3a1436d01ffb6d0812385c6152ef2923d22d6eb0de9321ed2efcddcf2f0ca021aa43f6

/data/user/0/com.eui_connectivity3/app_shoot/Lw.json

MD5 a6e5211329a42774b7cf03cd734d22d7
SHA1 ee7c103429b4c51d1a8823ab73cb6c0ee0621f8c
SHA256 d82cd294c3403b0df37def2a826f28df28dad17283a9267fb660dbb013ffefd1
SHA512 e028c421ee24200c2a20fded2650c02576bab97254dd282efd46ef87b5b03d1578f7340ce26c568353aced2c3cbd10a8990ef12c0e773f82c230679f554f0b09

/data/data/com.eui_connectivity3/files/.x

MD5 77dc50489b9323274732d27dc8a4e803
SHA1 0e02a3595b62489d0739d771881da8604d117c65
SHA256 c5684e792d1ebefea6aac09fed45911703fd58c899f8a08133d49dd91429a820
SHA512 0684a92f3e9c525384cfa53f531afba61e5930e1c27032a7e27e3315f72761b62e122dc34768d8162ba08f9bed53d148aa8dc034b46456bdd211f230637eba58

/data/user/0/com.eui_connectivity3/[email protected]

MD5 efa97f02f98a44d1be43a89171697100
SHA1 02e6956b620706e2d7a4fcfb29e741e8e13e9743
SHA256 35e45bc9e9f39382a94eebb50edbc834f4f3783adb4fcc56e81d889c4b436a23
SHA512 d6f6b73f34590f1add4143f43eaf2f2c6ebf175fe2c3b99d49a9df6b8c7491ee707142ccfd4c7c2594274ee497407071ee3f1219cdf6f0bdef1e2bda79d6ca46

/data/data/com.eui_connectivity3/oat/x86_64/[email protected]

MD5 2a08b936c05dcff49b57951818534ef1
SHA1 a2343956170af7f13a2fb90df3a72359b124c409
SHA256 2fd95a68495f14324b0bee782f6fbe92628c55dbedc0536cfcefb0cc4aa0ee00
SHA512 8912faf306a9df094b5661a36725fe46e89ddccc37b16d0c50402a948dd976827e5476f67d36b10a341f1db3b26fe82afaf8610122feaed05f93a7172ee0ce42

/data/data/com.eui_connectivity3/.global.com.eui_connectivity3

MD5 046a414913add6f5bb60072c7db819b6
SHA1 451ee4f6809260aec622d772fd329c7d0297a842
SHA256 b66c1320cb063a1d391c94273572ea6edae76c8c8b0a07f8d75c88686f0df72a
SHA512 4e6355f3051ed5e811ab030abde1f5be7f5e1cf33be99cd08477e9b6c015deb1d8bd75a09fb9c7176b8511c5ad0a67abc0902a3531e97564ccb6afc57496a47c