Analysis Overview
SHA256
ecb8395da2818b288bae02ac7827548df335aeefed102d6a9bda6d3738108c56
Threat Level: Known bad
The file c7b736a9fca49450b679452260c86084_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Modifies Windows Firewall
Creates new service(s)
Sets service image path in registry
Checks computer location settings
Executes dropped EXE
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
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-28 21:55
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-28 21:55
Reported
2024-08-28 21:58
Platform
win7-20240708-en
Max time kernel
145s
Max time network
150s
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\tpeuasrm = "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\tpeuasrm\ImagePath = "C:\\Windows\\SysWOW64\\tpeuasrm\\htauzfsa.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\tpeuasrm\htauzfsa.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2608 set thread context of 2196 | N/A | C:\Windows\SysWOW64\tpeuasrm\htauzfsa.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:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.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\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\tpeuasrm\htauzfsa.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\sc.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\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tpeuasrm\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe" C:\Windows\SysWOW64\tpeuasrm\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tpeuasrm binPath= "C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe /d\"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tpeuasrm "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tpeuasrm
C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe
C:\Windows\SysWOW64\tpeuasrm\htauzfsa.exe /d"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_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 | 20.236.44.162:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.11.7:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.111:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 172.253.116.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | refabyd.info | 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 |
Files
memory/2212-1-0x00000000002D0000-0x00000000003D0000-memory.dmp
memory/2212-2-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2212-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe
| MD5 | edee6e2a79527a530c616408e33a6d8b |
| SHA1 | 556b0ce5c8459606a9a212afbc32719c5f8c3f56 |
| SHA256 | 19bc0be673a0c6daae97cf9c34a34d6538d66098b925a60fbfb85a78a763f399 |
| SHA512 | 04e6120815be26dead4a9a4a8a17dec0b1cb783992a8bf5454aec48c3bc5d9660debde72ab02ee2c0b59a72e497e14754b007cefa7d862157aa7cf2478ae132d |
memory/2212-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2212-9-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2212-8-0x0000000000400000-0x0000000000871000-memory.dmp
memory/2196-16-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2196-14-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2196-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2196-11-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2608-17-0x0000000000400000-0x0000000000871000-memory.dmp
memory/2196-18-0x00000000000C0000-0x00000000000D5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-28 21:55
Reported
2024-08-28 21:58
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
150s
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\wosfdncn\ImagePath = "C:\\Windows\\SysWOW64\\wosfdncn\\bzoauqbr.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_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\wosfdncn\bzoauqbr.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3892 set thread context of 4704 | N/A | C:\Windows\SysWOW64\wosfdncn\bzoauqbr.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 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 |
| Key opened | \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\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\wosfdncn\bzoauqbr.exe |
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\netsh.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.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\svchost.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\wosfdncn\bzoauqbr.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wosfdncn\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bzoauqbr.exe" C:\Windows\SysWOW64\wosfdncn\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wosfdncn binPath= "C:\Windows\SysWOW64\wosfdncn\bzoauqbr.exe /d\"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wosfdncn "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wosfdncn
C:\Windows\SysWOW64\wosfdncn\bzoauqbr.exe
C:\Windows\SysWOW64\wosfdncn\bzoauqbr.exe /d"C:\Users\Admin\AppData\Local\Temp\c7b736a9fca49450b679452260c86084_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 444 -p 1112 -ip 1112
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1112 -s 796
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3892 -ip 3892
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3892 -s 520
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.144.22.2.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 | 20.236.44.162:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 8.8.8.8:53 | 162.44.236.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 52.101.11.0:25 | 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 | mta7.am0.yahoodns.net | udp |
| US | 67.195.204.72:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.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 |
| IE | 172.253.116.26:25 | 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 | 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 | 81.144.22.2.in-addr.arpa | 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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.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 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/1112-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp
memory/1112-2-0x00000000001E0000-0x00000000001F3000-memory.dmp
memory/1112-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\bzoauqbr.exe
| MD5 | fb4ff4123abafa9fb970a28fa4cfb6bb |
| SHA1 | ed75d5e249f498c441069800e5c3aa50ba2c2117 |
| SHA256 | 5dd9e12ff633e412e045c9f6c894451397d440c09763a45535cf0d133619f401 |
| SHA512 | c1741ea45945288df9107bfe5c2c18df782b42a7740f326fd5d8c9415011c77f37ea93e34a88773d5f26c02a60f6e58d2a750b3d78c4eb44ce7f16553536d429 |
memory/1112-8-0x0000000000400000-0x0000000000871000-memory.dmp
memory/1112-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1112-9-0x00000000001E0000-0x00000000001F3000-memory.dmp
memory/3892-11-0x0000000000400000-0x0000000000871000-memory.dmp
memory/4704-12-0x00000000008F0000-0x0000000000905000-memory.dmp
memory/4704-14-0x00000000008F0000-0x0000000000905000-memory.dmp
memory/3892-15-0x0000000000400000-0x0000000000871000-memory.dmp
memory/3892-16-0x0000000000400000-0x0000000000871000-memory.dmp
memory/4704-17-0x00000000008F0000-0x0000000000905000-memory.dmp