Analysis Overview
SHA256
cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac
Threat Level: Known bad
The file JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac 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
System Location Discovery: System Language Discovery
Event Triggered Execution: Netsh Helper DLL
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-29 23:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-29 23:29
Reported
2024-12-29 23:31
Platform
win7-20240903-en
Max time kernel
148s
Max time network
150s
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\icbigpm = "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\icbigpm\ImagePath = "C:\\Windows\\SysWOW64\\icbigpm\\oydqxsrg.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\icbigpm\oydqxsrg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2728 set thread context of 1148 | N/A | C:\Windows\SysWOW64\icbigpm\oydqxsrg.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\icbigpm\oydqxsrg.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\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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\icbigpm\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oydqxsrg.exe" C:\Windows\SysWOW64\icbigpm\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create icbigpm binPath= "C:\Windows\SysWOW64\icbigpm\oydqxsrg.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description icbigpm "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start icbigpm
C:\Windows\SysWOW64\icbigpm\oydqxsrg.exe
C:\Windows\SysWOW64\icbigpm\oydqxsrg.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.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
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 | quadoil.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 74.6.143.25:80 | yahoo.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 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.228.111:25 | 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 | 142.250.102.26:25 | 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 |
Files
memory/1928-0-0x0000000000220000-0x000000000022D000-memory.dmp
memory/1928-1-0x0000000000230000-0x0000000000243000-memory.dmp
memory/1928-2-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\oydqxsrg.exe
| MD5 | 9751243aa3a8c0fe422fe0871c51125e |
| SHA1 | 70d1773b4c5cc00aedf609ef4a55b3e1075fc86d |
| SHA256 | 3b76b9b5393a94b76e30aa272262bd81e7c9c614bc95d3dcaf929afc83b13b39 |
| SHA512 | 0aad11d6cce40135fdbb4a0f0573b97533c4b615c4eaf6fc05827da6e08d4c7c9d9986c00a7bcbdb526445a132aae9d0d68c55032f9509ecc09abf9e2939f3e7 |
memory/1148-6-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1148-9-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1148-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1928-15-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1928-14-0x0000000000230000-0x0000000000243000-memory.dmp
memory/1928-13-0x0000000000220000-0x000000000022D000-memory.dmp
memory/1928-12-0x0000000000400000-0x0000000000431000-memory.dmp
memory/2728-11-0x0000000000400000-0x0000000000431000-memory.dmp
memory/1148-16-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1148-17-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-29 23:29
Reported
2024-12-29 23:31
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
153s
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\zgymxmuv\ImagePath = "C:\\Windows\\SysWOW64\\zgymxmuv\\zjobidcr.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 916 set thread context of 3320 | N/A | C:\Windows\SysWOW64\zgymxmuv\zjobidcr.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\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 |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.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\zgymxmuv\zjobidcr.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\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zgymxmuv\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe" C:\Windows\SysWOW64\zgymxmuv\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zgymxmuv binPath= "C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zgymxmuv "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zgymxmuv
C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe
C:\Windows\SysWOW64\zgymxmuv\zjobidcr.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfa9a2895b49972fdffd76556471aadb3e056db1605e070c902013ec57cdfcac.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.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
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.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 | 20.231.239.246:80 | 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 | 52.101.42.0:25 | 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 | quadoil.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 98.136.96.91:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | quadoil.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 | quadoil.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| 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 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | 25.173.189.20.in-addr.arpa | udp |
Files
memory/824-2-0x0000000000400000-0x0000000000415000-memory.dmp
memory/824-1-0x0000000000700000-0x0000000000713000-memory.dmp
memory/824-0-0x00000000005D0000-0x00000000005DD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zjobidcr.exe
| MD5 | 9a3c4ac1e769497fd123022d6971f4e1 |
| SHA1 | 76a51554ca01f833f5340284268ac1d1626c1f66 |
| SHA256 | 0b35ec697f406be2e6364330a80a1c5db1bf1e7fc3a08b00182d9713879e247f |
| SHA512 | 43f8a8d6b7254e27a7af2d73696216a86e4b663915812183d6bf903b133a27d8cccd4d08b2c2f09d38d0aa053ba5c8783f71f7dcf609efbc849153cbd649512d |
memory/3320-12-0x0000000000C40000-0x0000000000C55000-memory.dmp
memory/3320-9-0x0000000000C40000-0x0000000000C55000-memory.dmp
memory/916-8-0x0000000000400000-0x0000000000431000-memory.dmp
memory/916-7-0x0000000000400000-0x0000000000431000-memory.dmp
memory/916-6-0x0000000000400000-0x0000000000431000-memory.dmp
memory/824-13-0x00000000005D0000-0x00000000005DD000-memory.dmp
memory/824-14-0x0000000000700000-0x0000000000713000-memory.dmp
memory/824-15-0x0000000000400000-0x0000000000415000-memory.dmp
memory/916-16-0x0000000000400000-0x0000000000431000-memory.dmp
memory/824-17-0x0000000000400000-0x0000000000431000-memory.dmp
memory/3320-19-0x0000000000C40000-0x0000000000C55000-memory.dmp
memory/3320-20-0x0000000000C40000-0x0000000000C55000-memory.dmp