Analysis Overview
SHA256
02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db
Threat Level: Known bad
The file JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Tofsee family
Creates new service(s)
Sets service image path in registry
Modifies Windows Firewall
Executes dropped EXE
Checks computer location settings
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Program crash
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-29 22:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-29 22:36
Reported
2024-12-29 22:39
Platform
win7-20240903-en
Max time kernel
146s
Max time network
145s
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\wffnauzo = "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\wffnauzo\ImagePath = "C:\\Windows\\SysWOW64\\wffnauzo\\euuujagy.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\wffnauzo\euuujagy.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2640 set thread context of 1072 | N/A | C:\Windows\SysWOW64\wffnauzo\euuujagy.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\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:\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\wffnauzo\euuujagy.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.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_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wffnauzo\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\euuujagy.exe" C:\Windows\SysWOW64\wffnauzo\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wffnauzo binPath= "C:\Windows\SysWOW64\wffnauzo\euuujagy.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wffnauzo "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wffnauzo
C:\Windows\SysWOW64\wffnauzo\euuujagy.exe
C:\Windows\SysWOW64\wffnauzo\euuujagy.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.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 | 20.231.239.246:80 | 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 | 52.101.40.26:25 | 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 | 67.195.204.72:25 | 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 | 142.250.27.27:25 | 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/2792-1-0x00000000002D0000-0x00000000003D0000-memory.dmp
memory/2792-3-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/2792-2-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\euuujagy.exe
| MD5 | 43df2b810348aa24272ec4d6f466ae0d |
| SHA1 | a47671a7a8c48167914c3cdc79aa3cbdbfa27e55 |
| SHA256 | e9d72e8cc05602a9dba292c2eb217784aefbad50039a155fdabba3ff566782cc |
| SHA512 | 29c891801fced31dd3ddcf993ee66bba8010f557bfa3ee0d05c1640ba414d11e27eb47944d8eb2fc7b7755b616299ab397dd339ebb9b7545d056020f7b4d2a12 |
memory/2792-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2792-9-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/1072-14-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1072-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1072-11-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1072-16-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2640-17-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/1072-18-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-29 22:36
Reported
2024-12-29 22:39
Platform
win10v2004-20241007-en
Max time kernel
146s
Max time network
146s
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\ytghklqw\ImagePath = "C:\\Windows\\SysWOW64\\ytghklqw\\xecnsnbp.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_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.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\ytghklqw\xecnsnbp.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4924 set thread context of 1668 | N/A | C:\Windows\SysWOW64\ytghklqw\xecnsnbp.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_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\ytghklqw\xecnsnbp.exe |
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:\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\ytghklqw\xecnsnbp.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_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.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\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ytghklqw\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xecnsnbp.exe" C:\Windows\SysWOW64\ytghklqw\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ytghklqw binPath= "C:\Windows\SysWOW64\ytghklqw\xecnsnbp.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ytghklqw "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ytghklqw
C:\Windows\SysWOW64\ytghklqw\xecnsnbp.exe
C:\Windows\SysWOW64\ytghklqw\xecnsnbp.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_02c2f7c0aa319c0d657f13416f6b0ab894908dea1d5b8a8d861bca68987d01db.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 856 -ip 856
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 856 -s 1028
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4924 -ip 4924
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 512
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 | 85.49.80.91.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 | microsoft.com | udp |
| AU | 20.70.246.20:80 | 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 | 20.246.70.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 217.106.137.52.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 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.76:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.190.18.2.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 | 142.250.27.27:25 | 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 | 180.129.81.91.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 | 22.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.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/856-1-0x0000000000620000-0x0000000000720000-memory.dmp
memory/856-2-0x0000000002200000-0x0000000002213000-memory.dmp
memory/856-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\xecnsnbp.exe
| MD5 | 6d1c35ef9d7da4dac6bbe6e85e07005a |
| SHA1 | 1f6a05b6ef57a433ba2141c96727f9f21459821b |
| SHA256 | 3783059722cd73f066c65af739bf4122cec4567c45f3f378a4bf5034250d55d9 |
| SHA512 | d83f7c6c78538b87b98ced4b2c2a7faaf6a49f1e331452b4dba0e3c835a7fb464c6f1a0dcb1d9c4dd53f3d8b683155ce7b64f0105825574feb8eed01324903f7 |
memory/856-8-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/856-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/856-9-0x0000000002200000-0x0000000002213000-memory.dmp
memory/4924-11-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4924-12-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/4924-13-0x0000000000400000-0x00000000004BD000-memory.dmp
memory/1668-14-0x0000000000830000-0x0000000000845000-memory.dmp
memory/1668-16-0x0000000000830000-0x0000000000845000-memory.dmp
memory/1668-19-0x0000000000830000-0x0000000000845000-memory.dmp
memory/4924-18-0x0000000000400000-0x00000000004BD000-memory.dmp