Analysis Overview
SHA256
1cb4511945d33d1414e7edf75f28952256df660a4d70e5599d8d0c653a9c44fc
Threat Level: Known bad
The file f27e816769871147e4862997714586f5_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
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 02:39
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 02:39
Reported
2024-04-16 02:41
Platform
win7-20240221-en
Max time kernel
141s
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\efwizmqw = "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\efwizmqw\ImagePath = "C:\\Windows\\SysWOW64\\efwizmqw\\kmfqxftj.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\efwizmqw\kmfqxftj.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2552 set thread context of 2388 | N/A | C:\Windows\SysWOW64\efwizmqw\kmfqxftj.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\f27e816769871147e4862997714586f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\efwizmqw\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kmfqxftj.exe" C:\Windows\SysWOW64\efwizmqw\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create efwizmqw binPath= "C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe /d\"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description efwizmqw "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start efwizmqw
C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe
C:\Windows\SysWOW64\efwizmqw\kmfqxftj.exe /d"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_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 | 52.101.40.26:25 | microsoft-com.mail.protection.outlook.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| 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 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 173.194.79.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.7:443 | 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 | 43.231.4.7:443 | tcp |
Files
memory/2248-1-0x00000000041D0000-0x00000000042D0000-memory.dmp
memory/2248-2-0x0000000000020000-0x0000000000033000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kmfqxftj.exe
| MD5 | 18b0b5022e8d46dfaf4e3ca2cfe38cf9 |
| SHA1 | 68352345d0d5fcb6f88ab55f466a09af64f070d7 |
| SHA256 | 82c3601dd9c525a0b07a0417d2169dd7c790d03793b5bba5c8d2312ba6323514 |
| SHA512 | 1df492259bbc71964f9adcc0227023106b7870431aaa098a889b3ca68c05dd8c50e3c03e5562678705a8da1f20b6caa8f96be90e49fa429785dd26c6d87f1c18 |
memory/2248-6-0x0000000000400000-0x00000000040F8000-memory.dmp
memory/2552-8-0x00000000041B0000-0x00000000042B0000-memory.dmp
memory/2388-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2388-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-9-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-17-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2552-14-0x0000000000400000-0x00000000040F8000-memory.dmp
memory/2388-18-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-19-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 02:39
Reported
2024-04-16 02:41
Platform
win10v2004-20240412-en
Max time kernel
145s
Max time network
140s
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\teichouo\ImagePath = "C:\\Windows\\SysWOW64\\teichouo\\bsovmlpt.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_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\teichouo\bsovmlpt.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2444 set thread context of 3860 | N/A | C:\Windows\SysWOW64\teichouo\bsovmlpt.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\f27e816769871147e4862997714586f5_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\teichouo\bsovmlpt.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\teichouo\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bsovmlpt.exe" C:\Windows\SysWOW64\teichouo\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create teichouo binPath= "C:\Windows\SysWOW64\teichouo\bsovmlpt.exe /d\"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description teichouo "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start teichouo
C:\Windows\SysWOW64\teichouo\bsovmlpt.exe
C:\Windows\SysWOW64\teichouo\bsovmlpt.exe /d"C:\Users\Admin\AppData\Local\Temp\f27e816769871147e4862997714586f5_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 424 -p 3728 -ip 3728
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 644
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 2444 -ip 2444
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2444 -s 508
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.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 | 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 | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.204.72:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| 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 | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | 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 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 66.229.138.52.in-addr.arpa | udp |
Files
memory/3728-1-0x0000000004380000-0x0000000004480000-memory.dmp
memory/3728-2-0x00000000041D0000-0x00000000041E3000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bsovmlpt.exe
| MD5 | 7b8119dcb72359cc3f10e908abdf5c8c |
| SHA1 | c47a0b7d22d21d1b42288bd581f40c9e674b8330 |
| SHA256 | e07fbac69955586fd1e923bf50af719de00640048d6ad8ae7c4c6efe7b56ff22 |
| SHA512 | d8beff771b58fcb9c8e37ca89de7d5007abeba040143572b24c87c030acfe0285c0e14d92565708af765e07ce206b460ca8f21122e04a517f6133049c5bd28e5 |
memory/3728-6-0x0000000000400000-0x00000000040F8000-memory.dmp
memory/3728-7-0x00000000041D0000-0x00000000041E3000-memory.dmp
memory/2444-9-0x0000000004260000-0x0000000004360000-memory.dmp
memory/3860-10-0x0000000000810000-0x0000000000825000-memory.dmp
memory/3860-14-0x0000000000810000-0x0000000000825000-memory.dmp
memory/3860-15-0x0000000000810000-0x0000000000825000-memory.dmp
memory/2444-16-0x0000000000400000-0x00000000040F8000-memory.dmp
memory/3860-17-0x0000000000810000-0x0000000000825000-memory.dmp