Malware Analysis Report

2024-08-06 11:59

Sample ID 240302-b5fk8agg83
Target a.exe
SHA256 48614dc3fd49968db9c35b840a6609f397f2f1813daa7c56b659036edf82f2e2
Tags
toxiceye rat trojan spyware stealer
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

48614dc3fd49968db9c35b840a6609f397f2f1813daa7c56b659036edf82f2e2

Threat Level: Known bad

The file a.exe was found to be: Known bad.

Malicious Activity Summary

toxiceye rat trojan spyware stealer

Contains code to disable Windows Defender

Toxiceye family

ToxicEye

Downloads MZ/PE file

Deletes itself

Executes dropped EXE

Reads user/profile data of web browsers

Checks computer location settings

Legitimate hosting services abused for malware hosting/C2

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Enumerates processes with tasklist

Delays execution with timeout.exe

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
System Information Discovery
T1082
Process Discovery
T1057
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Web Service
T1102
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-03-02 01:43

Signatures

Contains code to disable Windows Defender

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

Toxiceye family

toxiceye

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-02 01:43

Reported

2024-03-02 01:46

Platform

win7-20240221-en

Max time kernel

118s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a.exe"

Signatures

Contains code to disable Windows Defender

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

ToxicEye

rat trojan toxiceye

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\System32\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A
N/A N/A C:\Windows\System32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A
N/A N/A C:\Windows\system32\timeout.exe N/A

Enumerates processes with tasklist

Description Indicator Process Target
N/A N/A C:\Windows\system32\tasklist.exe N/A
N/A N/A C:\Windows\system32\tasklist.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\tasklist.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\tasklist.exe N/A
Token: SeDebugPrivilege N/A C:\Users\CyberEye\rat.exe N/A
Token: SeDebugPrivilege N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2728 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\schtasks.exe
PID 2728 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\schtasks.exe
PID 2728 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\schtasks.exe
PID 2728 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\cmd.exe
PID 2728 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\cmd.exe
PID 2728 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\cmd.exe
PID 2900 wrote to memory of 2504 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2504 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2504 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2724 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2724 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2724 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2580 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2580 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2580 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2900 wrote to memory of 2528 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2528 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2528 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2900 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2428 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2900 wrote to memory of 2824 N/A C:\Windows\System32\cmd.exe C:\Users\CyberEye\rat.exe
PID 2900 wrote to memory of 2824 N/A C:\Windows\System32\cmd.exe C:\Users\CyberEye\rat.exe
PID 2900 wrote to memory of 2824 N/A C:\Windows\System32\cmd.exe C:\Users\CyberEye\rat.exe
PID 2824 wrote to memory of 2672 N/A C:\Users\CyberEye\rat.exe C:\Windows\System32\schtasks.exe
PID 2824 wrote to memory of 2672 N/A C:\Users\CyberEye\rat.exe C:\Windows\System32\schtasks.exe
PID 2824 wrote to memory of 2672 N/A C:\Users\CyberEye\rat.exe C:\Windows\System32\schtasks.exe
PID 2824 wrote to memory of 1692 N/A C:\Users\CyberEye\rat.exe C:\Windows\system32\WerFault.exe
PID 2824 wrote to memory of 1692 N/A C:\Users\CyberEye\rat.exe C:\Windows\system32\WerFault.exe
PID 2824 wrote to memory of 1692 N/A C:\Users\CyberEye\rat.exe C:\Windows\system32\WerFault.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a.exe

"C:\Users\Admin\AppData\Local\Temp\a.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp52F0.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp52F0.tmp.bat

C:\Windows\system32\tasklist.exe

Tasklist /fi "PID eq 2728"

C:\Windows\system32\find.exe

find ":"

C:\Windows\system32\timeout.exe

Timeout /T 1 /Nobreak

C:\Windows\system32\tasklist.exe

Tasklist /fi "PID eq 2728"

C:\Windows\system32\find.exe

find ":"

C:\Windows\system32\timeout.exe

Timeout /T 1 /Nobreak

C:\Users\CyberEye\rat.exe

"rat.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2824 -s 1588

Network

Country Destination Domain Proto
US 8.8.8.8:53 google.com udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp

Files

memory/2728-0-0x0000000000DD0000-0x0000000000DFA000-memory.dmp

memory/2728-1-0x000007FEF5990000-0x000007FEF637C000-memory.dmp

memory/2728-2-0x000000001AD00000-0x000000001AD80000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp52F0.tmp.bat

MD5 a9b7ef8d9e30eda6f25598e09b2ffd92
SHA1 25262e4340bea33703bd07617d5e49cdd26c2386
SHA256 8e8adb9492c56d0d941fbaa55c1ddba93d507c5b53497ea777ac8b0b96cbbd26
SHA512 0ff6483dd00f1f9c55610f39ab43e80d2cf4c147398d1bc5cef4e0178bda8d0b39825e26524f0b66d9f4c75308ddf9f38ba4cd35d38a4fd5facd0fcf85292f01

memory/2728-6-0x000007FEF5990000-0x000007FEF637C000-memory.dmp

C:\Users\CyberEye\rat.exe

MD5 74f22ec8451a5d788ee312e2b637519c
SHA1 a7bd09f6f3d7f9b3ec33b5d4c2787223459d1fc0
SHA256 48614dc3fd49968db9c35b840a6609f397f2f1813daa7c56b659036edf82f2e2
SHA512 5b356e4811c58bcede2c3a5a0614e40049ef2a68c63c76fa78f612441d1ca9e1200f7a0544ffbca66ab4e0668fd0ec196bf0cdbff60ff7097c5f476b1675492b

memory/2824-10-0x0000000000EF0000-0x0000000000F1A000-memory.dmp

memory/2824-11-0x000007FEF4FA0000-0x000007FEF598C000-memory.dmp

memory/2824-12-0x000000001AD30000-0x000000001ADB0000-memory.dmp

memory/2824-13-0x000007FEF4FA0000-0x000007FEF598C000-memory.dmp

memory/2824-14-0x000000001AD30000-0x000000001ADB0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-02 01:43

Reported

2024-03-02 01:44

Platform

win10v2004-20240226-en

Max time kernel

20s

Max time network

25s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a.exe"

Signatures

Contains code to disable Windows Defender

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

ToxicEye

rat trojan toxiceye

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation C:\Users\CyberEye\rat.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A
N/A N/A C:\Windows\System32\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Enumerates processes with tasklist

Description Indicator Process Target
N/A N/A C:\Windows\system32\tasklist.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A
N/A N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\tasklist.exe N/A
Token: SeDebugPrivilege N/A C:\Users\CyberEye\rat.exe N/A
Token: SeDebugPrivilege N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\CyberEye\rat.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4856 wrote to memory of 4808 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\schtasks.exe
PID 4856 wrote to memory of 4808 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\schtasks.exe
PID 4856 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\cmd.exe
PID 4856 wrote to memory of 2568 N/A C:\Users\Admin\AppData\Local\Temp\a.exe C:\Windows\System32\cmd.exe
PID 2568 wrote to memory of 4944 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2568 wrote to memory of 4944 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\tasklist.exe
PID 2568 wrote to memory of 3076 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2568 wrote to memory of 3076 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\find.exe
PID 2568 wrote to memory of 3252 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2568 wrote to memory of 3252 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\timeout.exe
PID 2568 wrote to memory of 3888 N/A C:\Windows\System32\cmd.exe C:\Users\CyberEye\rat.exe
PID 2568 wrote to memory of 3888 N/A C:\Windows\System32\cmd.exe C:\Users\CyberEye\rat.exe
PID 3888 wrote to memory of 4820 N/A C:\Users\CyberEye\rat.exe C:\Windows\System32\schtasks.exe
PID 3888 wrote to memory of 4820 N/A C:\Users\CyberEye\rat.exe C:\Windows\System32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\a.exe

"C:\Users\Admin\AppData\Local\Temp\a.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\tmp7E67.tmp.bat & Del C:\Users\Admin\AppData\Local\Temp\tmp7E67.tmp.bat

C:\Windows\system32\tasklist.exe

Tasklist /fi "PID eq 4856"

C:\Windows\system32\find.exe

find ":"

C:\Windows\system32\timeout.exe

Timeout /T 1 /Nobreak

C:\Users\CyberEye\rat.exe

"rat.exe"

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\CyberEye\rat.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 google.com udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 raw.githubusercontent.com udp
US 185.199.111.133:443 raw.githubusercontent.com tcp
US 185.199.111.133:443 raw.githubusercontent.com tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 133.111.199.185.in-addr.arpa udp

Files

memory/4856-0-0x0000020972800000-0x000002097282A000-memory.dmp

memory/4856-2-0x0000020974C80000-0x0000020974C90000-memory.dmp

memory/4856-1-0x00007FFB73130000-0x00007FFB73BF1000-memory.dmp

memory/4856-6-0x00007FFB73130000-0x00007FFB73BF1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp7E67.tmp.bat

MD5 38bc7f8bffd04c37353824eb9a310dd8
SHA1 2d69a7acc42b57f7e227cb89def421b45b778bc5
SHA256 890f14fce3ce9b493420c9f582349f48b06d1989cee179c227d577ef7a37599c
SHA512 78a4ec1d11693e186191f36ab932f31d045ffe7be199625b9c1d4da087c5349be648438f23e6198a950ffcca0d3cd55e97c94d445078e4b9a26a7206486de145

C:\Users\CyberEye\rat.exe

MD5 74f22ec8451a5d788ee312e2b637519c
SHA1 a7bd09f6f3d7f9b3ec33b5d4c2787223459d1fc0
SHA256 48614dc3fd49968db9c35b840a6609f397f2f1813daa7c56b659036edf82f2e2
SHA512 5b356e4811c58bcede2c3a5a0614e40049ef2a68c63c76fa78f612441d1ca9e1200f7a0544ffbca66ab4e0668fd0ec196bf0cdbff60ff7097c5f476b1675492b

memory/3888-11-0x00007FFB73130000-0x00007FFB73BF1000-memory.dmp

memory/3888-12-0x00000267F4CF0000-0x00000267F4D00000-memory.dmp

memory/3888-14-0x00000267F51D0000-0x00000267F51DA000-memory.dmp

memory/3888-16-0x00000267F5380000-0x00000267F5392000-memory.dmp

memory/3888-17-0x00000267F4CF0000-0x00000267F4D00000-memory.dmp

memory/3888-20-0x00000267F4CF0000-0x00000267F4D00000-memory.dmp

memory/3888-45-0x00007FFB73130000-0x00007FFB73BF1000-memory.dmp