Malware Analysis Report

2024-09-09 13:50

Sample ID 240722-1wmqlszgmg
Target bd95907e66c93f53f9fe830ec3108e07a475964a93914dd0032f15be752fc8c8.bin
SHA256 bd95907e66c93f53f9fe830ec3108e07a475964a93914dd0032f15be752fc8c8
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

bd95907e66c93f53f9fe830ec3108e07a475964a93914dd0032f15be752fc8c8

Threat Level: Known bad

The file bd95907e66c93f53f9fe830ec3108e07a475964a93914dd0032f15be752fc8c8.bin was found to be: Known bad.

Malicious Activity Summary

octo banker collection credential_access discovery evasion impact infostealer persistence rat stealth trojan

Octo payload

Octo

Removes its main activity from the application launcher

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

Makes use of the framework's Accessibility service

Loads dropped Dex/Jar

Queries the phone number (MSISDN for GSM devices)

Declares broadcast receivers with permission to handle system events

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

Requests dangerous framework permissions

Reads information about phone network operator.

Performs UI accessibility actions on behalf of the user

Requests modifying system settings.

Queries the mobile country code (MCC)

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

Acquires the wake lock

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)

MITRE ATT&CK Matrix

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-22 22:00

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

2024-07-22 22:00

Reported

2024-07-22 22:03

Platform

android-x86-arm-20240624-en

Max time kernel

60s

Max time network

179s

Command Line

com.travelcomplete1

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.travelcomplete1/cache/ygtjrnlurznkwhf N/A N/A
N/A /data/user/0/com.travelcomplete1/cache/ygtjrnlurznkwhf 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

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.travelcomplete1

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.202:443 tcp
US 1.1.1.1:53 semanticlocation-pa.googleapis.com udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
US 1.1.1.1:53 kesmecekarpuz878.com udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
US 1.1.1.1:53 kesmecekarpuz.site udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
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
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.travelcomplete1/cache/ygtjrnlurznkwhf

MD5 9311254a361332c925eecbf251c5abe3
SHA1 1a9d614d80e543d4c97d591d35f83548aa608a65
SHA256 8d468f0a8ffe5d285d79350bb46ca8ab283901e48e1989a1087605a94a6621c0
SHA512 39fbf6f988d0b47c567c7cbc66a7b3e22ad2472bc3147cb66e27d4b53db249b5955a3a9eba51d8873e9fd4b6b8780a2865cac2c7f0b1e60fd904ab2c21dcff24

/data/data/com.travelcomplete1/cache/oat/ygtjrnlurznkwhf.cur.prof

MD5 dc18d6073847e15f2d6cd6b92ed6fb4f
SHA1 9e29dc434f72fbef93ec648a444f814b72deb752
SHA256 2290174da49b0e3ebec09f16dbfaffe13bacaf83a5256478f70dd47f6442aa08
SHA512 a8b4a13cb3a914198c7df0f3b56d71575e8dfb3b547a00ccdf4cf2d43246cbc2922c15193dbf2b0d70a20c7402850d2f1c0711f4f31a1ae7a0afffe80ef59d85

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-22 22:00

Reported

2024-07-22 22:03

Platform

android-x64-arm64-20240624-en

Max time kernel

179s

Max time network

188s

Command Line

com.travelcomplete1

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.travelcomplete1/cache/ygtjrnlurznkwhf N/A N/A
N/A /data/user/0/com.travelcomplete1/cache/ygtjrnlurznkwhf 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.travelcomplete1

Network

Country Destination Domain Proto
N/A 224.0.0.251:5353 udp
GB 142.250.187.206:443 tcp
GB 142.250.187.206:443 tcp
US 1.1.1.1:53 android.apis.google.com udp
GB 172.217.16.238:443 android.apis.google.com tcp
US 1.1.1.1:53 ssl.google-analytics.com udp
GB 142.250.187.200:443 ssl.google-analytics.com tcp
US 1.1.1.1:53 kesmecekarpuz878.com udp
US 1.1.1.1:53 kesmecekarpuz8455.com udp
US 1.1.1.1:53 kesmecekarpuz5446.com udp
US 1.1.1.1:53 kesmecekarpuz.site udp
US 1.1.1.1:53 kesmecekarpuz145.com udp
US 1.1.1.1:53 kesmecekarpuz.com udp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
GB 142.250.187.228:443 tcp
GB 142.250.187.228:443 tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
US 1.1.1.1:53 www.google.com udp
GB 142.250.178.4:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
GB 142.250.178.4:443 www.google.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp
RU 193.143.1.9:443 kesmecekarpuz.com tcp

Files

/data/data/com.travelcomplete1/cache/ygtjrnlurznkwhf

MD5 9311254a361332c925eecbf251c5abe3
SHA1 1a9d614d80e543d4c97d591d35f83548aa608a65
SHA256 8d468f0a8ffe5d285d79350bb46ca8ab283901e48e1989a1087605a94a6621c0
SHA512 39fbf6f988d0b47c567c7cbc66a7b3e22ad2472bc3147cb66e27d4b53db249b5955a3a9eba51d8873e9fd4b6b8780a2865cac2c7f0b1e60fd904ab2c21dcff24

/data/data/com.travelcomplete1/cache/oat/ygtjrnlurznkwhf.cur.prof

MD5 34ee5b10a4686339af32f00b99361af9
SHA1 9bb72ff61717c7208af8fa3103f1ab77f1b9f37c
SHA256 e8b194175b83f87324f98b4828b19667a38203dcebbd328f97a470d71f2be8eb
SHA512 55b5528fd131075f419e7703ae09aaa2464b83770be6b00bab8f729ed60a6b74909605890ec90e3bb7cac75b3cbe2d7f83a01159985f348defdf4b9b5752bce6