Analysis Overview
SHA256
1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2
Threat Level: Known bad
The file JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2 was found to be: Known bad.
Malicious Activity Summary
Tofsee family
Windows security bypass
Tofsee
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
Event Triggered Execution: Netsh Helper DLL
Program crash
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-29 13:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-12-29 13:40
Reported
2024-12-29 13:42
Platform
win7-20240729-en
Max time kernel
147s
Max time network
147s
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\znnmddmt = "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\znnmddmt\ImagePath = "C:\\Windows\\SysWOW64\\znnmddmt\\ykweepem.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\znnmddmt\ykweepem.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2616 set thread context of 2020 | N/A | C:\Windows\SysWOW64\znnmddmt\ykweepem.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_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.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\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 |
| 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\znnmddmt\ykweepem.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\znnmddmt\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ykweepem.exe" C:\Windows\SysWOW64\znnmddmt\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create znnmddmt binPath= "C:\Windows\SysWOW64\znnmddmt\ykweepem.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description znnmddmt "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start znnmddmt
C:\Windows\SysWOW64\znnmddmt\ykweepem.exe
C:\Windows\SysWOW64\znnmddmt\ykweepem.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.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 |
| NL | 20.76.201.171:80 | 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 | mta7.am0.yahoodns.net | udp |
| US | 67.195.204.74:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| 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 |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/2680-1-0x00000000005A0000-0x00000000006A0000-memory.dmp
memory/2680-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2680-4-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ykweepem.exe
| MD5 | ff2c3116c4897e6ea2527f70dd16091a |
| SHA1 | fb4c210aae3edc902283cbaa771771fb68ee6c25 |
| SHA256 | 359b1f50e12910368eca38e90757eec3163a147d668bfe94936b657db68f1c11 |
| SHA512 | 633b076078180044a7b3fc221323cfe02ed655df222af83b8e58a6a61514dba691e7bf9794d108658aca5d6802b600fda56fa4c890b692ffd111e8705915f3dc |
memory/2680-8-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2680-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2680-9-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2020-11-0x0000000000100000-0x0000000000115000-memory.dmp
memory/2020-14-0x0000000000100000-0x0000000000115000-memory.dmp
memory/2616-15-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2020-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2020-17-0x0000000000100000-0x0000000000115000-memory.dmp
memory/2020-18-0x0000000000100000-0x0000000000115000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-12-29 13:40
Reported
2024-12-29 13:42
Platform
win10v2004-20241007-en
Max time kernel
147s
Max time network
143s
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\pwejveol\ImagePath = "C:\\Windows\\SysWOW64\\pwejveol\\ahfqvqes.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_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.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\pwejveol\ahfqvqes.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4380 set thread context of 4312 | N/A | C:\Windows\SysWOW64\pwejveol\ahfqvqes.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\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\pwejveol\ahfqvqes.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:\Windows\SysWOW64\pwejveol\ahfqvqes.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.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\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\pwejveol\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ahfqvqes.exe" C:\Windows\SysWOW64\pwejveol\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create pwejveol binPath= "C:\Windows\SysWOW64\pwejveol\ahfqvqes.exe /d\"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description pwejveol "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start pwejveol
C:\Windows\SysWOW64\pwejveol\ahfqvqes.exe
C:\Windows\SysWOW64\pwejveol\ahfqvqes.exe /d"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3d452d707358e9968750470f83aac0128fb466b334ebdc715d1bcfa25049e2.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 2336 -ip 2336
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2336 -s 1228
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4380 -ip 4380
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4380 -s 512
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.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 | 52.101.42.4:25 | 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 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | 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 | 98.136.96.76:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.27.26:25 | 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 | 83.210.23.2.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 | 29.243.111.52.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 | 172.210.232.199.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 | 153.141.79.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/2336-1-0x0000000000570000-0x0000000000670000-memory.dmp
memory/2336-2-0x0000000000540000-0x0000000000553000-memory.dmp
memory/2336-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ahfqvqes.exe
| MD5 | c2c36cc4dce6695a21dc5a1bf72a3121 |
| SHA1 | 9999abafe91115b4b9277d103304d4a5b6e6f1a2 |
| SHA256 | 93377c27b16d30eaadcc6a1b6af47a84d695a00762ea402070cae9aeda693255 |
| SHA512 | f5d3815265a1ab2ae97125f16d3ba83a2462a5667519698c01c0081bcbddf3b5add6d5d12f542b2ffec1752be4eeac08e7761edc94b65c48f0bc5cb1ec1d4ae0 |
memory/2336-8-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2336-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2336-9-0x0000000000540000-0x0000000000553000-memory.dmp
memory/4380-12-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/4380-11-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/4380-13-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/4312-14-0x00000000005B0000-0x00000000005C5000-memory.dmp
memory/4312-16-0x00000000005B0000-0x00000000005C5000-memory.dmp
memory/4312-17-0x00000000005B0000-0x00000000005C5000-memory.dmp
memory/4380-18-0x0000000000400000-0x00000000004AF000-memory.dmp