Analysis Overview
SHA256
8a19788e6391d24385ece1dc77bb1a3f381bfd951faa17ce3925592842d19986
Threat Level: Known bad
The file f284271435132b9487ddf8dd41992578_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Checks computer location settings
Deletes itself
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 02:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 02:49
Reported
2024-04-16 02:52
Platform
win10v2004-20240412-en
Max time kernel
145s
Max time network
155s
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\vsprttnt\ImagePath = "C:\\Windows\\SysWOW64\\vsprttnt\\agrcujdp.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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\vsprttnt\agrcujdp.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1952 set thread context of 976 | N/A | C:\Windows\SysWOW64\vsprttnt\agrcujdp.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\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\vsprttnt\agrcujdp.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\vsprttnt\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\agrcujdp.exe" C:\Windows\SysWOW64\vsprttnt\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create vsprttnt binPath= "C:\Windows\SysWOW64\vsprttnt\agrcujdp.exe /d\"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description vsprttnt "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start vsprttnt
C:\Windows\SysWOW64\vsprttnt\agrcujdp.exe
C:\Windows\SysWOW64\vsprttnt\agrcujdp.exe /d"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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 464 -p 4992 -ip 4992
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4992 -s 1400
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1952 -ip 1952
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1952 -s 520
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 | 52.101.8.49:25 | 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 | 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 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 98.136.96.76:25 | 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 | 173.194.79.27:25 | 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/4992-1-0x0000000000C40000-0x0000000000D40000-memory.dmp
memory/4992-2-0x0000000000B50000-0x0000000000B63000-memory.dmp
memory/4992-4-0x0000000000400000-0x00000000008EB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\agrcujdp.exe
| MD5 | b63e43c00bfa322a2382ffc8be38c138 |
| SHA1 | 62d08102955f80b2f5c626e11d56fe3ef4e2a94c |
| SHA256 | dbedfb2517d288d7f75ce69269e14a216885e86c4b3edf76288a9c23d45a1a0b |
| SHA512 | 68053ef8c0a57f2cbad8a65a61a3f3ffda641c79d0b8e476b933d23dd785362a978f1172ce62d2f05e41d362a2465b15c1e7e19463edd83dc1274ccc9e368d88 |
memory/4992-7-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/4992-8-0x0000000000B50000-0x0000000000B63000-memory.dmp
memory/1952-10-0x0000000000B50000-0x0000000000C50000-memory.dmp
memory/976-12-0x0000000000CA0000-0x0000000000CB5000-memory.dmp
memory/1952-11-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/976-15-0x0000000000CA0000-0x0000000000CB5000-memory.dmp
memory/1952-16-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/976-17-0x0000000000CA0000-0x0000000000CB5000-memory.dmp
memory/976-18-0x0000000000CA0000-0x0000000000CB5000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 02:49
Reported
2024-04-16 02:52
Platform
win7-20240221-en
Max time kernel
149s
Max time network
123s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ffjnhedd\irgbnmtd.exe | N/A |
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\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ffjnhedd\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\irgbnmtd.exe" C:\Windows\SysWOW64\ffjnhedd\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ffjnhedd binPath= "C:\Windows\SysWOW64\ffjnhedd\irgbnmtd.exe /d\"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ffjnhedd "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ffjnhedd
C:\Windows\SysWOW64\ffjnhedd\irgbnmtd.exe
C:\Windows\SysWOW64\ffjnhedd\irgbnmtd.exe /d"C:\Users\Admin\AppData\Local\Temp\f284271435132b9487ddf8dd41992578_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
Files
memory/1372-1-0x0000000000290000-0x0000000000390000-memory.dmp
memory/1372-2-0x00000000001C0000-0x00000000001D3000-memory.dmp
memory/1372-4-0x0000000000400000-0x00000000008EB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\irgbnmtd.exe
| MD5 | c047fe02bef3fd5ba51741364ccf71d9 |
| SHA1 | 1e570930debfac78bcf118e086ff131e5eb04d1b |
| SHA256 | b12e71cc91c1e56258ec1d8ee8b3ed4014a47eb79cde576f761b88744115ce22 |
| SHA512 | 44283d58db57d80e117bc2ee76197d8641bb11be4d10de7199047bbe0f1304076aac52aa67a7f64696e1c81eedbe163341a6bec3f42c98379ecacddbe1236a1e |
memory/1372-7-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/1372-8-0x00000000001C0000-0x00000000001D3000-memory.dmp
memory/2632-10-0x0000000000990000-0x0000000000A90000-memory.dmp
memory/2632-11-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/2540-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2540-12-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2632-15-0x0000000000400000-0x00000000008EB000-memory.dmp
memory/2632-17-0x0000000000990000-0x0000000000A90000-memory.dmp