Analysis Overview
SHA256
202c56cd60883f77bd154c3c45240a558edfe75f8480646e301256383f067b1f
Threat Level: Known bad
The file f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Modifies Windows Firewall
Sets service image path in registry
Creates new service(s)
Executes dropped EXE
Checks computer location settings
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 22:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 22:49
Reported
2024-04-15 22:52
Platform
win7-20240221-en
Max time kernel
144s
Max time network
122s
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\oflviqsd = "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\oflviqsd\ImagePath = "C:\\Windows\\SysWOW64\\oflviqsd\\adntaleu.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\oflviqsd\adntaleu.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2640 set thread context of 2560 | N/A | C:\Windows\SysWOW64\oflviqsd\adntaleu.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\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oflviqsd\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\adntaleu.exe" C:\Windows\SysWOW64\oflviqsd\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create oflviqsd binPath= "C:\Windows\SysWOW64\oflviqsd\adntaleu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description oflviqsd "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start oflviqsd
C:\Windows\SysWOW64\oflviqsd\adntaleu.exe
C:\Windows\SysWOW64\oflviqsd\adntaleu.exe /d"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.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
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 | 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 | 142.251.18.27:25 | 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/1948-1-0x0000000000250000-0x0000000000251000-memory.dmp
memory/1948-2-0x0000000000260000-0x0000000000261000-memory.dmp
memory/1948-0-0x0000000000400000-0x000000000041F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\adntaleu.exe
| MD5 | 1d8ace3093d44742d9178b24aa4677da |
| SHA1 | 082c585353741d93dcd8a363e1ee043dbb30b4b1 |
| SHA256 | d71212c3779260ba26d0599353546c9e474dccb785b4513063fedfb28d9fd04f |
| SHA512 | 7ef479dc8e5f160ef9e675370abd32d504d0262a283117b53ff8fe772e0ba684badb2cafcb14ddb7ef3ec5619ab82b7fe9a12ac15d9756e4d39bfa8a0139230f |
memory/2560-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2560-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2640-12-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2560-7-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2560-14-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1948-15-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2560-16-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2560-17-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2560-18-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 22:49
Reported
2024-04-15 22:52
Platform
win10v2004-20240412-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\tnwlfxjs\ImagePath = "C:\\Windows\\SysWOW64\\tnwlfxjs\\cxxeamcu.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_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\tnwlfxjs\cxxeamcu.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4648 set thread context of 2296 | N/A | C:\Windows\SysWOW64\tnwlfxjs\cxxeamcu.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\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tnwlfxjs\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cxxeamcu.exe" C:\Windows\SysWOW64\tnwlfxjs\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create tnwlfxjs binPath= "C:\Windows\SysWOW64\tnwlfxjs\cxxeamcu.exe /d\"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description tnwlfxjs "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start tnwlfxjs
C:\Windows\SysWOW64\tnwlfxjs\cxxeamcu.exe
C:\Windows\SysWOW64\tnwlfxjs\cxxeamcu.exe /d"C:\Users\Admin\AppData\Local\Temp\f21b1d37cc4a41eb2dfde780fa798b93_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.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
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.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 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| 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 | 52.101.40.26:25 | 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 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.77:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.251.18.27:25 | 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 |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp |
Files
memory/4020-0-0x0000000000400000-0x000000000041F000-memory.dmp
memory/4020-1-0x00000000009C0000-0x00000000009C1000-memory.dmp
memory/4020-2-0x00000000009D0000-0x00000000009D1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cxxeamcu.exe
| MD5 | 2137349fa32b78d750526423066f5d4e |
| SHA1 | 9a9702328885d3a49220439a9d7e9bf974972d73 |
| SHA256 | 7f351b4793446d09281d3ec562f070833680cb47a4a6a55c52cc806bb6bac9c9 |
| SHA512 | 62e817b765efe64d89cf83f096542d149336ff98b792134ec8b34d79c241e84a8249d23190b8ade8ece29be39403f33487813802c975d27617c19df03928de99 |
memory/4648-6-0x0000000000460000-0x0000000000461000-memory.dmp
memory/2296-8-0x0000000000CD0000-0x0000000000CE5000-memory.dmp
memory/4648-11-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-12-0x0000000000CD0000-0x0000000000CE5000-memory.dmp
memory/4020-13-0x0000000000400000-0x000000000041F000-memory.dmp
memory/2296-14-0x0000000000CD0000-0x0000000000CE5000-memory.dmp
memory/2296-15-0x0000000000CD0000-0x0000000000CE5000-memory.dmp
memory/2296-16-0x0000000000CD0000-0x0000000000CE5000-memory.dmp