Analysis Overview
SHA256
e75528357e945973102cc65fbfe482090a4c76a9166a23b5ff60515884fd4ff7
Threat Level: Known bad
The file 0906ff34f48334d4563ca2df39b3cef7.zip was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Sets service image path in registry
Creates new service(s)
Modifies Windows Firewall
Deletes itself
Checks computer location settings
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Event Triggered Execution: Netsh Helper DLL
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-31 08:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-31 08:40
Reported
2024-08-31 08:42
Platform
win7-20240705-en
Max time kernel
144s
Max time network
145s
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\cnvjmpsr = "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\cnvjmpsr\ImagePath = "C:\\Windows\\SysWOW64\\cnvjmpsr\\lseranoi.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\cnvjmpsr\lseranoi.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2844 set thread context of 2184 | N/A | C:\Windows\SysWOW64\cnvjmpsr\lseranoi.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:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.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\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cnvjmpsr\lseranoi.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\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe
"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cnvjmpsr\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lseranoi.exe" C:\Windows\SysWOW64\cnvjmpsr\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cnvjmpsr binPath= "C:\Windows\SysWOW64\cnvjmpsr\lseranoi.exe /d\"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cnvjmpsr "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cnvjmpsr
C:\Windows\SysWOW64\cnvjmpsr\lseranoi.exe
C:\Windows\SysWOW64\cnvjmpsr\lseranoi.exe /d"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.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 | 52.101.42.0:25 | 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 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.94:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 108.177.96.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 94.100.180.31:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/2172-2-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2172-1-0x00000000009D0000-0x0000000000AD0000-memory.dmp
memory/2172-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lseranoi.exe
| MD5 | de16e0bff0aa81cfd8dbca0b9d329432 |
| SHA1 | 2e27d4e888a9cd9dc4ecad703c256dd9ae4dc44a |
| SHA256 | 176310b6b7c0e40e458221af42a3b6c88a1090810088a5c074f51445025a9f38 |
| SHA512 | c04e2758150c0450f5e74a63e49f051c3fb43f8df81074610320261f1191c11e0903e8ea91a1ebd8afbeaf95af1ce471caed420e6fa429512fa1d90d7c5a8218 |
memory/2172-8-0x0000000000400000-0x0000000000871000-memory.dmp
memory/2172-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2172-9-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2184-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2184-11-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2184-14-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2184-16-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2184-18-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2844-17-0x0000000000400000-0x0000000000871000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-31 08:40
Reported
2024-08-31 08:42
Platform
win10v2004-20240802-en
Max time kernel
145s
Max time network
142s
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\npgqxxfd\ImagePath = "C:\\Windows\\SysWOW64\\npgqxxfd\\dkwjsfga.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.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\npgqxxfd\dkwjsfga.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3820 set thread context of 536 | N/A | C:\Windows\SysWOW64\npgqxxfd\dkwjsfga.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\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\npgqxxfd\dkwjsfga.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.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\npgqxxfd\dkwjsfga.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:\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\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe
"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\npgqxxfd\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dkwjsfga.exe" C:\Windows\SysWOW64\npgqxxfd\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create npgqxxfd binPath= "C:\Windows\SysWOW64\npgqxxfd\dkwjsfga.exe /d\"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description npgqxxfd "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start npgqxxfd
C:\Windows\SysWOW64\npgqxxfd\dkwjsfga.exe
C:\Windows\SysWOW64\npgqxxfd\dkwjsfga.exe /d"C:\Users\Admin\AppData\Local\Temp\181e6f88cf32348d8247bb3c4deb07bf44b677656b43b37a30dfad4a3b3e2935.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 1420 -ip 1420
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1420 -s 1292
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3820 -ip 3820
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3820 -s 512
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| NL | 20.76.201.171:80 | 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 | 52.101.8.49:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 171.201.76.20.in-addr.arpa | 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 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.106:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 | 108.177.96.27:25 | 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 | 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 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | 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/1420-1-0x0000000000BF0000-0x0000000000CF0000-memory.dmp
memory/1420-2-0x00000000001C0000-0x00000000001D3000-memory.dmp
memory/1420-4-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dkwjsfga.exe
| MD5 | 58919dc1f0c855be860e3e384141841f |
| SHA1 | 940bd97561cf802cd869ef07ea494606258f50e2 |
| SHA256 | 72ca990cc27136427dfc98e80a105979940e4f14931bd8ee9d21000eb4982e01 |
| SHA512 | 3274aa5e8379994a6f40730491c15dde1f46e65e55104cc28bbbbd72f93d5bb71caaa8f040eb29f855ed75072505c4036677a21ae959ad7648d4b767e1118c09 |
memory/3820-8-0x0000000000400000-0x0000000000871000-memory.dmp
memory/3820-9-0x0000000000400000-0x0000000000871000-memory.dmp
memory/536-11-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1420-10-0x0000000000400000-0x0000000000871000-memory.dmp
memory/1420-13-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1420-12-0x00000000001C0000-0x00000000001D3000-memory.dmp
memory/3820-15-0x0000000000400000-0x0000000000871000-memory.dmp
memory/536-16-0x0000000000400000-0x0000000000415000-memory.dmp
memory/536-17-0x0000000000400000-0x0000000000415000-memory.dmp