Analysis Overview
SHA256
d3ad591f0689b854fe488a00451cafca5f4497ca7ca77718ee48195ad213d830
Threat Level: Known bad
The file d3ad591f0689b854fe488a00451cafca5f4497ca7ca77718ee48195ad213d830 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Deletes itself
Checks computer location settings
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-31 21:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 21:12
Reported
2024-08-31 21:15
Platform
win7-20240704-en
Max time kernel
144s
Max time network
122s
Command Line
Signatures
Tofsee
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\owbnmryg = "0" | C:\Windows\SysWOW64\svchost.exe | N/A |
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\owbnmryg\ImagePath = "C:\\Windows\\SysWOW64\\owbnmryg\\gxqtanzy.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3020 set thread context of 1408 | N/A | C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe
"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\owbnmryg\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gxqtanzy.exe" C:\Windows\SysWOW64\owbnmryg\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create owbnmryg binPath= "C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe /d\"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description owbnmryg "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start owbnmryg
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe
C:\Windows\SysWOW64\owbnmryg\gxqtanzy.exe /d"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.236.44.162:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.41.24:25 | microsoft-com.mail.protection.outlook.com | tcp |
| AU | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.228.110:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 108.177.119.27:25 | smtp.google.com | tcp |
| AU | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| AU | 43.231.4.7:443 | tcp |
Files
memory/2152-0-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2152-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2152-3-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2152-1-0x00000000001B0000-0x00000000001B1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gxqtanzy.exe
| MD5 | 62779d54a2d33fca1ae9f04b753af933 |
| SHA1 | 2ab82983fd5a9f706ebbf7007b3978a06dc712c9 |
| SHA256 | d7b57f8f1346b4b2300a0e61799200941a885725a79bcb3c06543a3653c6f25b |
| SHA512 | d3b75544e15f4e1ec0266b1e12ba5a48d8ed13ae35df5352f270c94257189995a64dd3516409fe2d639a73d21212d05dcd9fad1d8d40d6d67a22b1c5d34a3b64 |
memory/2152-9-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3020-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3020-10-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2152-8-0x00000000050E0000-0x00000000050F1000-memory.dmp
memory/1408-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1408-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1408-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1408-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/3020-19-0x0000000000400000-0x000000000041E000-memory.dmp
memory/3020-18-0x00000000050E0000-0x00000000050F1000-memory.dmp
memory/1408-21-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 21:12
Reported
2024-08-31 21:15
Platform
win10v2004-20240802-en
Max time kernel
150s
Max time network
126s
Command Line
Signatures
Tofsee
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\eutqcklu\ImagePath = "C:\\Windows\\SysWOW64\\eutqcklu\\ehppnlpy.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2052 set thread context of 4524 | N/A | C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
| Description | Indicator | Process | Target |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key value enumerated | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\sc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe
"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\eutqcklu\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ehppnlpy.exe" C:\Windows\SysWOW64\eutqcklu\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create eutqcklu binPath= "C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe /d\"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description eutqcklu "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start eutqcklu
C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe
C:\Windows\SysWOW64\eutqcklu\ehppnlpy.exe /d"C:\Users\Admin\AppData\Local\Temp\cc405e27cf3c45f22534764ed6c2c3d7dc46264b4c275cfc53b3cf6707c211a5.exe"
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 42.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.236.44.162:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.40.26:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 162.44.236.20.in-addr.arpa | udp |
| AU | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.228.94:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 108.177.127.27:25 | smtp.google.com | tcp |
| AU | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| AU | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | udp |
Files
memory/4148-0-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4148-1-0x00000000009C0000-0x00000000009C1000-memory.dmp
memory/4148-2-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4148-3-0x00000000009D0000-0x00000000009D1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ehppnlpy.exe
| MD5 | eecf8510af28550b7aa5df8f903c279d |
| SHA1 | a6c926a4f91953f34255e24422fa592c5079bf56 |
| SHA256 | 7f4fddf373a5dd9c609331509354343916dd79281d56397ee63f7dac92e1e622 |
| SHA512 | 55656236f7a52bd2bda16111c29216fe15e463f39eaef6bb44ed5325c6711efff00e54176859dc0809bde978ffb32044cdaad4adabaa7d130f5eb11504a262ae |
memory/2052-7-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2052-8-0x0000000000530000-0x0000000000531000-memory.dmp
memory/4148-12-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4148-11-0x000000005F000000-0x000000005F011000-memory.dmp
memory/4524-13-0x00000000003B0000-0x00000000003C5000-memory.dmp
memory/4524-17-0x00000000003B0000-0x00000000003C5000-memory.dmp
memory/4524-16-0x00000000003B0000-0x00000000003C5000-memory.dmp
memory/2052-20-0x0000000000400000-0x000000000041E000-memory.dmp
memory/4524-21-0x00000000003B0000-0x00000000003C5000-memory.dmp
memory/4524-22-0x00000000003B0000-0x00000000003C5000-memory.dmp