Analysis Overview
SHA256
341c5f516b4e4557f25b162811efabca0135d390c00b061dce9f82608afe04cf
Threat Level: Known bad
The file c562dc58e71fd79abd570506dfa5f123 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Modifies Windows Firewall
Creates new service(s)
Sets service image path in registry
Checks computer location settings
Deletes itself
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Program crash
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-13 08:06
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-13 08:06
Reported
2024-03-13 08:09
Platform
win10v2004-20240226-en
Max time kernel
158s
Max time network
164s
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\xpmlehnv\ImagePath = "C:\\Windows\\SysWOW64\\xpmlehnv\\qhdkbaei.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.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\xpmlehnv\qhdkbaei.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4964 set thread context of 4656 | N/A | C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe
"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xpmlehnv\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qhdkbaei.exe" C:\Windows\SysWOW64\xpmlehnv\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xpmlehnv binPath= "C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.exe /d\"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xpmlehnv "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xpmlehnv
C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.exe
C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.exe /d"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.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\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2496 -ip 2496
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2496 -s 1260
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4964 -ip 4964
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 508
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | 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 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | 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 |
| IE | 209.85.203.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.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 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 252.15.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| GB | 96.17.178.174:80 | tcp |
Files
memory/2496-1-0x0000000000EA0000-0x0000000000FA0000-memory.dmp
memory/2496-2-0x0000000000DC0000-0x0000000000DD3000-memory.dmp
memory/2496-4-0x0000000000400000-0x0000000000C20000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\qhdkbaei.exe
| MD5 | 11134148481de14b9f1bc616ff19a4ad |
| SHA1 | 87d2b5f1ba01ade32815a349b0216d301629d7ff |
| SHA256 | ec1d14b359980ef724ee1ffe269297b983fbfc1558f37e32ec04e8b298909e53 |
| SHA512 | 79a2dbc4fc05462a539dc3d94be9c837ad276bcdab6b681bcb15ddcb32d77960b95ab3c341f7c72c0582a377cca3379418393de720349ec536efc660b0d21434 |
C:\Windows\SysWOW64\xpmlehnv\qhdkbaei.exe
| MD5 | 7c782497c27e7a0b96c0600dc659b54f |
| SHA1 | 5d538b139a9b1f36a6dba0d59c8b15963273c4b2 |
| SHA256 | 8ec00e76b457eefb0ead69fdbd42d5a184d48beb06b07e9f892efb31fd7b4d65 |
| SHA512 | baea905017c78d542330ab9a303a2235117e8de04c96fdbde02adb9739a17a635bc1ecfe8534a2b7765edea3bf1f21343c1582c4e57aa08d862040e1c883e301 |
memory/2496-7-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/2496-8-0x0000000000DC0000-0x0000000000DD3000-memory.dmp
memory/4964-10-0x0000000000EA0000-0x0000000000FA0000-memory.dmp
memory/4656-11-0x0000000000D20000-0x0000000000D35000-memory.dmp
memory/4964-12-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/4656-16-0x0000000000D20000-0x0000000000D35000-memory.dmp
memory/4964-17-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/4656-18-0x0000000000D20000-0x0000000000D35000-memory.dmp
memory/4656-19-0x0000000000D20000-0x0000000000D35000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-13 08:06
Reported
2024-03-13 08:09
Platform
win7-20240221-en
Max time kernel
141s
Max time network
125s
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\clgupcoz = "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\clgupcoz\ImagePath = "C:\\Windows\\SysWOW64\\clgupcoz\\mlzbpmnf.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\clgupcoz\mlzbpmnf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2476 set thread context of 2464 | N/A | C:\Windows\SysWOW64\clgupcoz\mlzbpmnf.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
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe
"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\clgupcoz\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mlzbpmnf.exe" C:\Windows\SysWOW64\clgupcoz\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create clgupcoz binPath= "C:\Windows\SysWOW64\clgupcoz\mlzbpmnf.exe /d\"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description clgupcoz "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start clgupcoz
C:\Windows\SysWOW64\clgupcoz\mlzbpmnf.exe
C:\Windows\SysWOW64\clgupcoz\mlzbpmnf.exe /d"C:\Users\Admin\AppData\Local\Temp\c562dc58e71fd79abd570506dfa5f123.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 | microsoft.com | udp |
| US | 20.112.250.133:80 | 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 | 104.47.54.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.111:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 209.85.203.26:25 | smtp.google.com | tcp |
| HK | 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 |
| HK | 43.231.4.7:443 | tcp |
Files
memory/2160-1-0x00000000002D0000-0x00000000003D0000-memory.dmp
memory/2160-2-0x00000000001B0000-0x00000000001C3000-memory.dmp
memory/2160-4-0x0000000000400000-0x0000000000C20000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\mlzbpmnf.exe
| MD5 | 772fc4ee05deadfbbf583be13de30678 |
| SHA1 | 9aed6d8ab4f19bdead0a2d7553bff287593068ce |
| SHA256 | f20383f68b4972d0579a715c91e8c7c1bf8b3847e52a55854bac5fb04b2fdbdd |
| SHA512 | 8328661ca8d0658535a59b28269c192af3e1b30cae6b4dcf2ba2bff3087083bd9f38fe43299c66be489db09e7a0b27c3bd81a9713b5100177a65670e3356dee4 |
C:\Windows\SysWOW64\clgupcoz\mlzbpmnf.exe
| MD5 | 76d525211c83d1608d094f22fb7c75b9 |
| SHA1 | 169c498a04294a0bda8dd4912c0edc939decee99 |
| SHA256 | e41a8bdbde37b3bb5c84d1286e16156399c27c9246a57938a00c64da72f3314f |
| SHA512 | 6f8360d9c75017b46ce16659b9b6ff2541cff402f11ee43f2ee64fcffccea545284489c8fc80daf3e5e054c3d7208f398cba32afa1bb5fa1f56143e0de5295bd |
memory/2160-7-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/2160-8-0x00000000001B0000-0x00000000001C3000-memory.dmp
memory/2476-10-0x0000000000230000-0x0000000000330000-memory.dmp
memory/2464-11-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2464-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2476-14-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/2464-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2476-16-0x0000000000400000-0x0000000000C20000-memory.dmp
memory/2464-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2464-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2464-21-0x0000000000080000-0x0000000000095000-memory.dmp