Analysis Overview
SHA256
e02a3d35c6708e86e89fc7d06f2f41219cfb7dca206276481a41adc4f0157bb6
Threat Level: Known bad
The file e02a3d35c6708e86e89fc7d06f2f41219cfb7dca206276481a41adc4f0157bb6 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Modifies Windows Firewall
Creates new service(s)
Sets service image path in registry
Checks computer location settings
Executes dropped EXE
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Program crash
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-01 18:59
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-01 18:59
Reported
2024-09-01 19:01
Platform
win7-20240704-en
Max time kernel
145s
Max time network
146s
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\dccvgwsx = "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\dccvgwsx\ImagePath = "C:\\Windows\\SysWOW64\\dccvgwsx\\pncoiepf.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\dccvgwsx\pncoiepf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2752 set thread context of 2452 | N/A | C:\Windows\SysWOW64\dccvgwsx\pncoiepf.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 opened | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| 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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| 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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\dccvgwsx\pncoiepf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe
"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dccvgwsx\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pncoiepf.exe" C:\Windows\SysWOW64\dccvgwsx\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create dccvgwsx binPath= "C:\Windows\SysWOW64\dccvgwsx\pncoiepf.exe /d\"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description dccvgwsx "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start dccvgwsx
C:\Windows\SysWOW64\dccvgwsx\pncoiepf.exe
C:\Windows\SysWOW64\dccvgwsx\pncoiepf.exe /d"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.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 | 52.101.40.26:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.91:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 74.125.143.27:25 | smtp.google.com | 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 |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
C:\Users\Admin\AppData\Local\Temp\pncoiepf.exe
| MD5 | 05d9fea42edd9777d7af2f2913545cf3 |
| SHA1 | f322e5c5a9e88378ae1ff16f41a473931d14c9ce |
| SHA256 | 66713eca8a69fe8fe028477919e8f5f231ff6f77f0455c844baacb6125214ed4 |
| SHA512 | cd5e8e79e8cba3fcfaf6b310e1a7f25d915d3a06df2caa1a843b1c891d5a61d5b2cb83b53ca2353cf5f0fb86030aa0b84c369cee15763b2073c279f936521e40 |
memory/2188-3-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2188-2-0x00000000001B0000-0x00000000001C3000-memory.dmp
memory/2188-1-0x00000000002B0000-0x00000000003B0000-memory.dmp
memory/2188-8-0x0000000000400000-0x000000000044D000-memory.dmp
memory/2188-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2188-9-0x00000000001B0000-0x00000000001C3000-memory.dmp
memory/2452-16-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2452-14-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2452-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2452-11-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2752-17-0x0000000000400000-0x000000000044D000-memory.dmp
memory/2452-18-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-01 18:59
Reported
2024-09-01 19:01
Platform
win10v2004-20240802-en
Max time kernel
145s
Max time network
144s
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\oxtvjmcc\ImagePath = "C:\\Windows\\SysWOW64\\oxtvjmcc\\zeasqtf.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.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\oxtvjmcc\zeasqtf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3116 set thread context of 4840 | N/A | C:\Windows\SysWOW64\oxtvjmcc\zeasqtf.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 opened | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
| 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 |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\oxtvjmcc\zeasqtf.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| 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\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.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 |
| 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 |
| 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\oxtvjmcc\zeasqtf.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe
"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oxtvjmcc\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zeasqtf.exe" C:\Windows\SysWOW64\oxtvjmcc\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create oxtvjmcc binPath= "C:\Windows\SysWOW64\oxtvjmcc\zeasqtf.exe /d\"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description oxtvjmcc "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start oxtvjmcc
C:\Windows\SysWOW64\oxtvjmcc\zeasqtf.exe
C:\Windows\SysWOW64\oxtvjmcc\zeasqtf.exe /d"C:\Users\Admin\AppData\Local\Temp\b93a47f6924dbe4309eb656760e3edeafdd38061e8ef9add06598f95871260b6.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 408 -p 3076 -ip 3076
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3076 -s 1184
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3116 -ip 3116
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 512
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.231.239.246:80 | 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 | 52.101.11.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 246.239.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.228.106:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 74.125.143.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 0.204.248.87.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 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/3076-1-0x00000000006B0000-0x00000000007B0000-memory.dmp
memory/3076-2-0x0000000000490000-0x00000000004A3000-memory.dmp
memory/3076-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zeasqtf.exe
| MD5 | 03456bd4d434f9cf91dff238185a5a8f |
| SHA1 | 24f85f7ac1248c9c34848c6d29d2d7d00941e82d |
| SHA256 | 1825a06c1830078dde568eb5f189b0acc4da60bdd7743723caf43762680ff022 |
| SHA512 | d8f941764196c6c58ece33fbe16192e0443f9194ed3773bc8ac50a72a1b7078df1059b71556dcc1ce586fb001a4a66664000680f9b51b58824b1f4c9bf977a43 |
memory/3076-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/3076-9-0x0000000000490000-0x00000000004A3000-memory.dmp
memory/3076-8-0x0000000000400000-0x000000000044D000-memory.dmp
memory/3116-12-0x0000000000400000-0x000000000044D000-memory.dmp
memory/3116-11-0x0000000000400000-0x000000000044D000-memory.dmp
memory/3116-13-0x0000000000400000-0x000000000044D000-memory.dmp
memory/4840-14-0x0000000001070000-0x0000000001085000-memory.dmp
memory/4840-16-0x0000000001070000-0x0000000001085000-memory.dmp
memory/4840-17-0x0000000001070000-0x0000000001085000-memory.dmp
memory/3116-19-0x0000000000400000-0x000000000044D000-memory.dmp