Malware Analysis Report

2024-09-09 13:44

Sample ID 240529-z3sd1aag98
Target b9623aaa4fd2065fadee383148522990a89398c74725baff3180e246bb26c066.bin
SHA256 b9623aaa4fd2065fadee383148522990a89398c74725baff3180e246bb26c066
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b9623aaa4fd2065fadee383148522990a89398c74725baff3180e246bb26c066

Threat Level: Known bad

The file b9623aaa4fd2065fadee383148522990a89398c74725baff3180e246bb26c066.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.

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

Prevents application removal

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

Removes its main activity from the application launcher

Queries the mobile country code (MCC)

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

Makes use of the framework's foreground persistence service

Queries the phone number (MSISDN for GSM devices)

Loads dropped Dex/Jar

Reads information about phone network operator.

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

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

Acquires the wake lock

Uses Crypto APIs (Might try to encrypt user data)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-05-29 21:14

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 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 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: behavioral2

Detonation Overview

Submitted

2024-05-29 21:14

Reported

2024-05-29 21:18

Platform

android-x64-20240514-en

Max time network

147s

Command Line

N/A

Signatures

N/A

Processes

N/A

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 172.217.169.14:443 tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 216.58.212.232:443 ssl.google-analytics.com tcp
GB 216.58.204.74:443 tcp
GB 172.217.16.228:443 tcp
GB 172.217.16.228:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 142.250.178.14:443 android.apis.google.com tcp
GB 142.250.200.2:443 tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-29 21:14

Reported

2024-05-29 21:18

Platform

android-x86-arm-20240514-en

Max time kernel

179s

Max time network

137s

Command Line

com.yourlot77

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.yourlot77/cache/ptamtq N/A N/A
N/A /data/user/0/com.yourlot77/cache/ptamtq 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.yourlot77

Network

Country Destination Domain Proto
GB 216.58.213.3:443 tcp
GB 142.250.200.42:443 tcp
GB 142.250.200.14:443 tcp
GB 142.250.200.42:443 tcp
N/A 224.0.0.251:5353 udp
GB 142.250.187.234:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
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 6adiletasarim.com udp
US 1.1.1.1:53 9adiletasarim.com udp
US 1.1.1.1:53 adile56tasarim.com udp
US 1.1.1.1:53 8adiletasarim.com udp
US 1.1.1.1:53 7adiletasarim.com udp
GB 172.217.169.14:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp

Files

/data/data/com.yourlot77/cache/ptamtq

MD5 c051675b6f33aad8f29ab9a989b03320
SHA1 a9bc32da843afb43175bc3ab9f79a2be2e3f072b
SHA256 953746d61ad79715e264463962af3fc4d716017ec7cf4092bdc28b7a32ee1413
SHA512 794cec941f61d09b451a026b3cfb1c9f54c261d446c60be2741b16c1f08f200ccdedb607c595a88e91b432b98a1baec4f175be4633aefab83e430a5ebfed5d13

/data/data/com.yourlot77/cache/oat/ptamtq.cur.prof

MD5 6769e941be870cb2c5418e0a85b3031f
SHA1 978ed7316959e35351fffe22469a5af012e3aa4c
SHA256 767a07666cd287589dd545a4cfe3c8ef30081bf14d6a161d018852ec35764487
SHA512 e34345f9c4a249561b0fdf6e334c689b3f4096a7a4f92435fccfbfe123f591ebbdbe90ac15623899309b8b771686ffa6278aa5780495e71bf0242ef757a937cb