Analysis Overview
SHA256
425fd34fb1131f5b712ca4b861bac754a708071051a3ca3282a99eabff79a531
Threat Level: Known bad
The file f26a8af7f9af71442c04f46b5bda6870_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)
Checks computer location settings
Deletes itself
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Enumerates physical storage devices
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 01:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 01:52
Reported
2024-04-16 01:54
Platform
win7-20240221-en
Max time kernel
145s
Max time network
145s
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\fyueakly = "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\fyueakly\ImagePath = "C:\\Windows\\SysWOW64\\fyueakly\\zraifsey.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\fyueakly\zraifsey.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2644 set thread context of 2460 | N/A | C:\Windows\SysWOW64\fyueakly\zraifsey.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\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\fyueakly\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zraifsey.exe" C:\Windows\SysWOW64\fyueakly\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create fyueakly binPath= "C:\Windows\SysWOW64\fyueakly\zraifsey.exe /d\"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description fyueakly "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start fyueakly
C:\Windows\SysWOW64\fyueakly\zraifsey.exe
C:\Windows\SysWOW64\fyueakly\zraifsey.exe /d"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_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 | 52.101.42.0:25 | 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 | mta5.am0.yahoodns.net | udp |
| US | 67.195.228.109:25 | 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 | 172.217.218.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/2264-1-0x00000000008D0000-0x00000000009D0000-memory.dmp
memory/2264-3-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2264-4-0x0000000000400000-0x0000000000468000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zraifsey.exe
| MD5 | a49b91d6a2a17d4bd62411c9a4813bb7 |
| SHA1 | 53b37d73029761f4c1c8af1469ae9bf42f5d4b78 |
| SHA256 | 149def6ee9a60538f06906c66b37438ebf363835936e92e9525bddc306847b1b |
| SHA512 | 870986c4eb625db288939859a4dbeb22a9f94d1ff808828fe2d164154b76d4aa13874ede232acf13917959b5419bbe00d51722287e3f78a6911ae9843310f193 |
memory/2264-8-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2460-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2460-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2460-9-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2644-14-0x0000000000520000-0x0000000000620000-memory.dmp
memory/2644-16-0x0000000000400000-0x0000000000468000-memory.dmp
memory/2460-18-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2460-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2460-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2460-21-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 01:52
Reported
2024-04-16 01:54
Platform
win10v2004-20240412-en
Max time kernel
149s
Max time network
151s
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\ysctixop\ImagePath = "C:\\Windows\\SysWOW64\\ysctixop\\mvhnxsoe.exe" | C:\Windows\SysWOW64\ysctixop\mvhnxsoe.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_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\ysctixop\mvhnxsoe.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4916 set thread context of 4624 | N/A | C:\Windows\SysWOW64\ysctixop\mvhnxsoe.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\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\ysctixop\mvhnxsoe.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ysctixop\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mvhnxsoe.exe" C:\Windows\SysWOW64\ysctixop\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ysctixop binPath= "C:\Windows\SysWOW64\ysctixop\mvhnxsoe.exe /d\"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ysctixop "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ysctixop
C:\Windows\SysWOW64\ysctixop\mvhnxsoe.exe
C:\Windows\SysWOW64\ysctixop\mvhnxsoe.exe /d"C:\Users\Admin\AppData\Local\Temp\f26a8af7f9af71442c04f46b5bda6870_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 484 -p 4332 -ip 4332
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4332 -s 572
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4916 -ip 4916
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 520
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.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 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 | 52.101.42.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.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 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.228.109:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.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 |
| NL | 172.217.218.26:25 | 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 | 172.210.232.199.in-addr.arpa | 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 | refabyd.info | 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 | 22.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | 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 |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/4332-1-0x00000000004E0000-0x00000000005E0000-memory.dmp
memory/4332-2-0x00000000005F0000-0x0000000000603000-memory.dmp
memory/4332-3-0x0000000000400000-0x0000000000468000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\mvhnxsoe.exe
| MD5 | d989ea101ceca9aacd29688c888fbe69 |
| SHA1 | 06ef89d876438c3acbe7cc9622ffc38493e1afdd |
| SHA256 | d36bac7f5b804a88921b4ebad00989324635170f28d8cfcd5c437010e8b8d6fc |
| SHA512 | 5806db85c6632fd346ad075a22f29d8e1880bbaeb4546a6585370670701e705f07f3dd2ed15da52fdbf45d4083f222898bbd9a116f89a1dba817d92a30106711 |
memory/4332-8-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4332-9-0x00000000005F0000-0x0000000000603000-memory.dmp
memory/4916-10-0x0000000000840000-0x0000000000940000-memory.dmp
memory/4624-12-0x0000000000670000-0x0000000000685000-memory.dmp
memory/4916-11-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4624-15-0x0000000000670000-0x0000000000685000-memory.dmp
memory/4624-16-0x0000000000670000-0x0000000000685000-memory.dmp
memory/4916-17-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4624-18-0x0000000000670000-0x0000000000685000-memory.dmp