Malware Analysis Report

2025-08-05 11:54

Sample ID 241015-1z6ynatflq
Target fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7.bin
SHA256 fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7
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

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

fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7

Threat Level: Known bad

The file fcaa1137103c8938829fede7d1a12faaf5c47252a6a05fd51996af0bb2253bf7.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

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

Queries the mobile country code (MCC)

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

Declares services with permission to bind to the system

Performs UI accessibility actions on behalf of the user

Acquires the wake lock

Declares broadcast receivers with permission to handle system events

Requests modifying system settings.

Reads information about phone network operator.

Makes use of the framework's foreground persistence service

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

Requests dangerous framework permissions

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

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

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-15 22:06

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 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

2024-10-15 22:06

Reported

2024-10-15 22:08

Platform

android-x86-arm-20240910-en

Max time kernel

149s

Max time network

150s

Command Line

com.waitbigubk

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.waitbigubk/cache/itnkou N/A N/A
N/A /data/user/0/com.waitbigubk/cache/itnkou 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

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.waitbigubk

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
US 1.1.1.1:53 4guvenilirislemler.com.tr udp
US 1.1.1.1:53 5guvenilirislemler.com.tr udp
US 1.1.1.1:53 guvenilirislemler.com.tr udp
US 1.1.1.1:53 guvenilirshopislemler.com.tr udp
US 1.1.1.1:53 www.ip-api.com udp
US 208.95.112.1:80 www.ip-api.com tcp
RU 94.141.120.47:443 guvenilirshopislemler.com.tr tcp
RU 94.141.120.47:443 guvenilirshopislemler.com.tr tcp
GB 216.58.212.238:443 tcp
GB 216.58.212.238:443 tcp
GB 216.58.212.238:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 2guvenilirislemler.com.tr udp
US 1.1.1.1:53 3guvenilirislemler.com.tr udp
RU 94.141.120.47:443 guvenilirshopislemler.com.tr tcp
US 1.1.1.1:53 guvenilirislemlershop.com.tr udp
RU 94.141.120.47:443 guvenilirislemlershop.com.tr tcp
US 1.1.1.1:53 hizliveguvenilirshop.com.tr udp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
GB 172.217.16.228:80 tcp
GB 172.217.16.228:443 tcp
GB 142.250.200.35:80 tcp

Files

/data/data/com.waitbigubk/cache/itnkou

MD5 9079bd7f9f6a6ea34c2f5cb31a6abc66
SHA1 f7b39b0fa6be618e26f039d00a7d1eb3fcd03d14
SHA256 2b813b42d35f2bc575ad767deb25dc382a6e6dcf835ce13cf47a6cf4fe4ba030
SHA512 55f0d2b11e3a1662144c741d0f2e2538908605fa255652a0059412fa9a43c5be78b59d574e15201dc70a3460efd55842f958f8b2bb3402cec362994ee49b1d9f

/data/data/com.waitbigubk/cache/oat/itnkou.cur.prof

MD5 21d54dc4d051e78899f8793b81bb101c
SHA1 ba23c6d740be51632b2b89b422eab407db17821c
SHA256 dcbd31c847c4ced8c5cc0abc81cea14c1d5a72c42bdbde8c22a5660538987327
SHA512 f6a5a19831087dde9aab6546c7d2bfde348757abe3fe9821b8c9e796ea6b92bcfc303e0231779bbb90f71fbc48c150e23544f6474ab66f637a9c46a1a461a3f9

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-15 22:06

Reported

2024-10-15 22:09

Platform

android-x64-20240910-en

Max time kernel

148s

Max time network

156s

Command Line

com.waitbigubk

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.waitbigubk/cache/itnkou N/A N/A
N/A /data/user/0/com.waitbigubk/cache/itnkou 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

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.waitbigubk

Network

Country Destination Domain Proto
GB 142.250.200.10:443 tcp
N/A 224.0.0.251:5353 udp
GB 216.58.212.206:443 tcp
GB 216.58.212.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 216.58.213.14:443 android.apis.google.com tcp
US 1.1.1.1:53 guvenilirislemlershop.com.tr udp
RU 94.141.120.47:443 guvenilirislemlershop.com.tr 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 5guvenilirislemler.com.tr udp
US 1.1.1.1:53 4guvenilirislemler.com.tr udp
US 1.1.1.1:53 3guvenilirislemler.com.tr udp
RU 94.141.120.47:443 guvenilirislemlershop.com.tr tcp
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 guvenilirislemler.com.tr udp
RU 94.141.120.47:443 guvenilirislemler.com.tr tcp
US 1.1.1.1:53 guvenilirshopislemler.com.tr udp
RU 94.141.120.47:443 guvenilirshopislemler.com.tr tcp
US 1.1.1.1:53 hizliveguvenilirshop.com.tr udp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
US 1.1.1.1:53 2guvenilirislemler.com.tr udp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
RU 94.141.120.47:443 hizliveguvenilirshop.com.tr tcp
GB 142.250.187.194:443 tcp

Files

/data/data/com.waitbigubk/cache/itnkou

MD5 9079bd7f9f6a6ea34c2f5cb31a6abc66
SHA1 f7b39b0fa6be618e26f039d00a7d1eb3fcd03d14
SHA256 2b813b42d35f2bc575ad767deb25dc382a6e6dcf835ce13cf47a6cf4fe4ba030
SHA512 55f0d2b11e3a1662144c741d0f2e2538908605fa255652a0059412fa9a43c5be78b59d574e15201dc70a3460efd55842f958f8b2bb3402cec362994ee49b1d9f

/data/data/com.waitbigubk/cache/oat/itnkou.cur.prof

MD5 9ca3c942c83d0478fddad4ee092660e9
SHA1 c927011964842d82f631b008aa35ba39ab0929af
SHA256 e508199e5f189a65242285a7d78d0ff8757a65cbe49660d9937f2be100432552
SHA512 62df7ad9b47aa52e17ad560847b1555c7a00ac76cf5145a6a0f24bb67ae5d1abb49380731fb48ff347cfd182ba15dc351aca0e499e58d815f83132a6c5876670