Analysis Overview
SHA256
621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02
Threat Level: Known bad
The file JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Tofsee family
Sets service image path in registry
Modifies Windows Firewall
Creates new service(s)
Executes dropped EXE
Deletes itself
Checks computer location settings
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Event Triggered Execution: Netsh Helper DLL
Program crash
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-29 11:30
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-29 11:30
Reported
2024-12-29 11:32
Platform
win7-20240903-en
Max time kernel
149s
Max time network
149s
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\reheurhg = "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\reheurhg\ImagePath = "C:\\Windows\\SysWOW64\\reheurhg\\joyoch.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\reheurhg\joyoch.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2752 set thread context of 2808 | N/A | C:\Windows\SysWOW64\reheurhg\joyoch.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\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.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\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\reheurhg\joyoch.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\reheurhg\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\joyoch.exe" C:\Windows\SysWOW64\reheurhg\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create reheurhg binPath= "C:\Windows\SysWOW64\reheurhg\joyoch.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description reheurhg "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start reheurhg
C:\Windows\SysWOW64\reheurhg\joyoch.exe
C:\Windows\SysWOW64\reheurhg\joyoch.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.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 | 20.231.239.246:80 | 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 | 52.101.11.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.75:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| 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/2400-0-0x00000000001B0000-0x00000000001BD000-memory.dmp
memory/2400-1-0x0000000000260000-0x0000000000273000-memory.dmp
memory/2400-2-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\joyoch.exe
| MD5 | df2ccbd756901ebe0e831e8cabc92a04 |
| SHA1 | 7b9f1f301be5c5a9643a64b994f28a367a1f690a |
| SHA256 | 981c1674f1e52792bb49c2ec1b78caebc6f1a34e2b4342c9c804142eddcfb9db |
| SHA512 | 370901014457256945b26e35a1dd37d437ba93beca06c1bf0e2d1f2661a57136c4aeb6c993a2580ec54b08dd27de26eab12312c555a56ef5b8a9c30011272250 |
memory/2400-6-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2400-7-0x00000000001B0000-0x00000000001BD000-memory.dmp
memory/2400-8-0x0000000000260000-0x0000000000273000-memory.dmp
memory/2400-9-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2808-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2808-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2752-16-0x0000000000400000-0x0000000000441000-memory.dmp
memory/2808-13-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2808-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2808-17-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-29 11:30
Reported
2024-12-29 11:32
Platform
win10v2004-20241007-en
Max time kernel
148s
Max time network
147s
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\tjzglqln\ImagePath = "C:\\Windows\\SysWOW64\\tjzglqln\\ekfiraav.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.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\tjzglqln\ekfiraav.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3116 set thread context of 4380 | N/A | C:\Windows\SysWOW64\tjzglqln\ekfiraav.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 |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\tjzglqln\ekfiraav.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe |
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\sc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\tjzglqln\ekfiraav.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\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.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\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tjzglqln\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ekfiraav.exe" C:\Windows\SysWOW64\tjzglqln\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tjzglqln binPath= "C:\Windows\SysWOW64\tjzglqln\ekfiraav.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tjzglqln "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tjzglqln
C:\Windows\SysWOW64\tjzglqln\ekfiraav.exe
C:\Windows\SysWOW64\tjzglqln\ekfiraav.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_621af9ea3a44e4fab71237e384a0ca3808339d2d566a1b0144af74fe9d48bd02.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
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1460 -ip 1460
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3116 -ip 3116
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 512
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1460 -s 1036
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.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 |
| AU | 20.70.246.20:80 | 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 | 52.101.11.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 20.246.70.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 97.17.167.52.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 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.91:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | 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 | 181.129.81.91.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 | 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 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
| US | 8.8.8.8:53 | 43.229.111.52.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 | 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 | lakeflex.ru | udp |
| US | 8.8.8.8:53 | quadoil.ru | udp |
Files
memory/1460-0-0x00000000005E0000-0x00000000005ED000-memory.dmp
memory/1460-1-0x0000000000700000-0x0000000000713000-memory.dmp
memory/1460-2-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ekfiraav.exe
| MD5 | 1dd48a39f81e91e4a07c508678560fb2 |
| SHA1 | 71fde92b7f4607ae1427d46d2fa6a751fad04c3d |
| SHA256 | 85aaaccd6239b2518afc7ef0e58067a95ff8dd3636c3d9e975c290a0270aaa10 |
| SHA512 | 767d875954f1e707b48ba8e75970a70f03535c09c5e1c385c294fff1e8a6988ea8533540fbadf2084dc9136175f0b1be7ce062214da62b5a71fff5d31e8fdfb0 |
memory/3116-6-0x0000000000400000-0x0000000000441000-memory.dmp
memory/3116-7-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4380-8-0x0000000000C10000-0x0000000000C25000-memory.dmp
memory/4380-11-0x0000000000C10000-0x0000000000C25000-memory.dmp
memory/3116-13-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1460-14-0x0000000000400000-0x0000000000441000-memory.dmp
memory/1460-17-0x0000000000400000-0x0000000000415000-memory.dmp
memory/1460-16-0x0000000000700000-0x0000000000713000-memory.dmp
memory/1460-15-0x00000000005E0000-0x00000000005ED000-memory.dmp
memory/4380-18-0x0000000000C10000-0x0000000000C25000-memory.dmp
memory/4380-19-0x0000000000C10000-0x0000000000C25000-memory.dmp
memory/4380-20-0x0000000000C10000-0x0000000000C25000-memory.dmp