Analysis Overview
SHA256
084d26ac03fadeb25260cb626efda571fc92bca3528d8dae61e30be71d126fae
Threat Level: Known bad
The file f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Executes dropped EXE
Checks computer location settings
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Program crash
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 08:21
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 08:21
Reported
2024-04-16 08:24
Platform
win7-20240319-en
Max time kernel
143s
Max time network
128s
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\koringe = "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\koringe\ImagePath = "C:\\Windows\\SysWOW64\\koringe\\crvzpctt.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\koringe\crvzpctt.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2520 set thread context of 2780 | N/A | C:\Windows\SysWOW64\koringe\crvzpctt.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
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\koringe\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\crvzpctt.exe" C:\Windows\SysWOW64\koringe\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create koringe binPath= "C:\Windows\SysWOW64\koringe\crvzpctt.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description koringe "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start koringe
C:\Windows\SysWOW64\koringe\crvzpctt.exe
C:\Windows\SysWOW64\koringe\crvzpctt.exe /d"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.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 | 104.47.54.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| HK | 43.231.4.6:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.228.110:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.153.27:25 | smtp.google.com | tcp |
| HK | 43.231.4.6:443 | 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 |
| HK | 43.231.4.6:443 | tcp |
Files
memory/1192-1-0x0000000000DC0000-0x0000000000EC0000-memory.dmp
memory/1192-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/1192-4-0x0000000000400000-0x0000000000C0A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\crvzpctt.exe
| MD5 | 691d73273b0a9856bee0a9201f90c855 |
| SHA1 | 0fd105c634f082bf6e5446da75c931b3b94a6872 |
| SHA256 | 0e7b50ce2e93dbe54345c2324dc6137b6872cec8c1d8dd782c2ad9e13d1673bc |
| SHA512 | 7f105e1326877d884a6b1832e3169293cfd39c0ebfdced2b90f5e03f4efee6560cf8e4ecc28d4b5c903997c3112bd541ba87ca549e2acbeefbb4021834aa6bea |
memory/1192-7-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/1192-8-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2520-11-0x0000000000DC0000-0x0000000000EC0000-memory.dmp
memory/2780-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2780-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2520-14-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/2780-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2520-16-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/2780-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2780-21-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2780-22-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 08:21
Reported
2024-04-16 08:24
Platform
win10v2004-20240412-en
Max time kernel
147s
Max time network
154s
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\pjyfyfto\ImagePath = "C:\\Windows\\SysWOW64\\pjyfyfto\\ifxokbxv.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.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\pjyfyfto\ifxokbxv.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1692 set thread context of 2260 | N/A | C:\Windows\SysWOW64\pjyfyfto\ifxokbxv.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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\pjyfyfto\ifxokbxv.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pjyfyfto\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ifxokbxv.exe" C:\Windows\SysWOW64\pjyfyfto\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pjyfyfto binPath= "C:\Windows\SysWOW64\pjyfyfto\ifxokbxv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pjyfyfto "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pjyfyfto
C:\Windows\SysWOW64\pjyfyfto\ifxokbxv.exe
C:\Windows\SysWOW64\pjyfyfto\ifxokbxv.exe /d"C:\Users\Admin\AppData\Local\Temp\f3147553bec69b2a2b4001b906c9c8c5_JaffaCakes118.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 460 -p 2972 -ip 2972
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2972 -s 1040
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 1692 -ip 1692
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1692 -s 512
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| NL | 23.62.61.56:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 56.61.62.23.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 | 104.47.54.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| HK | 43.231.4.6:443 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.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 | 67.195.228.109:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.153.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.6:443 | 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 | 43.229.111.52.in-addr.arpa | udp |
| HK | 43.231.4.6:443 | tcp | |
| US | 8.8.8.8:53 | 24.173.189.20.in-addr.arpa | udp |
Files
memory/2972-1-0x0000000000F30000-0x0000000001030000-memory.dmp
memory/2972-2-0x0000000000EB0000-0x0000000000EC3000-memory.dmp
memory/2972-4-0x0000000000400000-0x0000000000C0A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ifxokbxv.exe
| MD5 | 3eb2478a21d1e96ca1d6cb47930dade3 |
| SHA1 | 37191dc922aa727a238b13529b36713ac446a7b0 |
| SHA256 | 4c48ca2eb12fed268196943d26049987f4f17a1a8f5d0c27f0d5201987452c1a |
| SHA512 | 02de0c7da721cc4f95e81e29278eeea36f6a9aea0712f0c64862ce792981c409182b0dea643297ad1f7c1e107689252f6a84151f813d67a9f3edd51132b74d8d |
memory/2972-7-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/2972-8-0x0000000000EB0000-0x0000000000EC3000-memory.dmp
memory/1692-10-0x0000000000CF0000-0x0000000000DF0000-memory.dmp
memory/1692-12-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/2260-11-0x0000000000500000-0x0000000000515000-memory.dmp
memory/2260-15-0x0000000000500000-0x0000000000515000-memory.dmp
memory/1692-17-0x0000000000400000-0x0000000000C0A000-memory.dmp
memory/2260-16-0x0000000000500000-0x0000000000515000-memory.dmp
memory/2260-18-0x0000000000500000-0x0000000000515000-memory.dmp
memory/2260-19-0x0000000000500000-0x0000000000515000-memory.dmp