Analysis Overview
SHA256
b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23
Threat Level: Known bad
The file JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee family
Tofsee
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Executes dropped EXE
Deletes itself
Checks computer location settings
Suspicious use of SetThreadContext
Launches sc.exe
Program crash
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-29 13:54
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-29 13:54
Reported
2024-12-29 13:56
Platform
win7-20240729-en
Max time kernel
146s
Max time network
146s
Command Line
Signatures
Tofsee
Tofsee family
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qyeozrqn = "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\qyeozrqn\ImagePath = "C:\\Windows\\SysWOW64\\qyeozrqn\\qxvglgui.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\qyeozrqn\qxvglgui.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2764 set thread context of 2268 | N/A | C:\Windows\SysWOW64\qyeozrqn\qxvglgui.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\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:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.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\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\qyeozrqn\qxvglgui.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\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qyeozrqn\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe" C:\Windows\SysWOW64\qyeozrqn\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qyeozrqn binPath= "C:\Windows\SysWOW64\qyeozrqn\qxvglgui.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qyeozrqn "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qyeozrqn
C:\Windows\SysWOW64\qyeozrqn\qxvglgui.exe
C:\Windows\SysWOW64\qyeozrqn\qxvglgui.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.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 | mta7.am0.yahoodns.net | udp |
| US | 98.136.96.75:25 | 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 | 142.250.102.26:25 | 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/2188-1-0x00000000005F0000-0x00000000006F0000-memory.dmp
memory/2188-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2188-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\qxvglgui.exe
| MD5 | 193cd9260b5d624fc50f53cb2c534032 |
| SHA1 | 4c2f806ea4f05d1f634e38b11852b7d317a15369 |
| SHA256 | 7b6d40fbb2bd23fcb280bca73496a4f0c916a6e95f7b58c777d87a253de60dc5 |
| SHA512 | 1857aaa12c5892b32aa43479d244a48e2b96866664d0d9dc399da60c37c225e3475cf180ef115eee3d860b6058ff0bbf713267a9c5d8e1c5631f90fa4e4abe9e |
memory/2188-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2188-9-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2188-8-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/2268-16-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2268-14-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2268-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2268-11-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2764-17-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/2268-18-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-29 13:54
Reported
2024-12-29 13:56
Platform
win10v2004-20241007-en
Max time kernel
147s
Max time network
142s
Command Line
Signatures
Tofsee
Tofsee family
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\nkgxwbsg\ImagePath = "C:\\Windows\\SysWOW64\\nkgxwbsg\\dxtzkums.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.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\nkgxwbsg\dxtzkums.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3344 set thread context of 3920 | N/A | C:\Windows\SysWOW64\nkgxwbsg\dxtzkums.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\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\nkgxwbsg\dxtzkums.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| 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\nkgxwbsg\dxtzkums.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\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.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 |
| 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\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nkgxwbsg\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dxtzkums.exe" C:\Windows\SysWOW64\nkgxwbsg\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create nkgxwbsg binPath= "C:\Windows\SysWOW64\nkgxwbsg\dxtzkums.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description nkgxwbsg "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start nkgxwbsg
C:\Windows\SysWOW64\nkgxwbsg\dxtzkums.exe
C:\Windows\SysWOW64\nkgxwbsg\dxtzkums.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b23f703c7ca079fa43cc7fb65f58ec401533fada301eeeec2403ef68f339bf23.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 444 -p 1988 -ip 1988
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 1228
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3344 -ip 3344
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 536
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 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 133.250.112.20.in-addr.arpa | 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 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 98.136.96.91:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.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 | 142.250.102.27:25 | 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 | 134.130.81.91.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 | 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/1988-1-0x0000000000720000-0x0000000000820000-memory.dmp
memory/1988-2-0x00000000021F0000-0x0000000002203000-memory.dmp
memory/1988-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\dxtzkums.exe
| MD5 | 37b827451143afba83759b1f0ae29fc8 |
| SHA1 | 9f8402fdc4e6d892613174810dc0257aabeb835d |
| SHA256 | 973c587e23d70b26e44d765467402275557fe76db5510b6cfec9da55bf98e844 |
| SHA512 | 0c270eb302ac5b78a4761b4221a1789ecad8ce59c09e81fe92bc25d9fd97e84e92ee36dd0611570b1765a5510aa05109747c2e73bd4171dc7312fd80844e7684 |
memory/1988-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1988-9-0x00000000021F0000-0x0000000002203000-memory.dmp
memory/1988-8-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/3344-11-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/3344-12-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/3344-13-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/3920-14-0x0000000000D00000-0x0000000000D15000-memory.dmp
memory/3920-16-0x0000000000D00000-0x0000000000D15000-memory.dmp
memory/3920-17-0x0000000000D00000-0x0000000000D15000-memory.dmp
memory/3344-18-0x0000000000400000-0x00000000004AD000-memory.dmp