Analysis Overview
SHA256
69124d1b3d101c9199c4d39f766ac185a8a0bd2f191b1295fb2d5780a3b0f38b
Threat Level: Known bad
The file deb0c884cd5bdf35238e063bc643c2e5 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Checks computer location settings
Executes dropped EXE
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-25 18:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-25 18:41
Reported
2024-03-25 18:43
Platform
win7-20231129-en
Max time kernel
150s
Max time network
149s
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\myvqpluh = "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\myvqpluh\ImagePath = "C:\\Windows\\SysWOW64\\myvqpluh\\cgnrtwmy.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\myvqpluh\cgnrtwmy.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2608 set thread context of 1668 | N/A | C:\Windows\SysWOW64\myvqpluh\cgnrtwmy.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\deb0c884cd5bdf35238e063bc643c2e5.exe
"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\myvqpluh\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\cgnrtwmy.exe" C:\Windows\SysWOW64\myvqpluh\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create myvqpluh binPath= "C:\Windows\SysWOW64\myvqpluh\cgnrtwmy.exe /d\"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description myvqpluh "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start myvqpluh
C:\Windows\SysWOW64\myvqpluh\cgnrtwmy.exe
C:\Windows\SysWOW64\myvqpluh\cgnrtwmy.exe /d"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.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 | mta6.am0.yahoodns.net | udp |
| US | 98.136.96.77:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| BE | 142.251.168.26:25 | 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/2360-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp
memory/2360-3-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/2360-4-0x00000000002A0000-0x00000000002B3000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\cgnrtwmy.exe
| MD5 | ffb26617c9b107568cd960ac9308e371 |
| SHA1 | da31196bf4831fd1d25d5f400ddffc19befa553e |
| SHA256 | ac36ec8d597954e2d004e65c8ec59d33ddbac90bb2053cda0c718ee29f0ba1e2 |
| SHA512 | 7bec8ed392a7eebe14ff288c93f440fc99cb800e965f929369255726e6075d93d8d045911ef0b4447e9f17e2fba02c83b3ff7d2a40cb9a1ddcf785797e7415b2 |
C:\Windows\SysWOW64\myvqpluh\cgnrtwmy.exe
| MD5 | b0e8f710765cbaa3e033d78f50be69f3 |
| SHA1 | 872dceab9ce447b1dc1c67b79f5c0b673cda7e61 |
| SHA256 | e254c831064534096434f1fac6c98ddaa5f81db5f9d67ac1b43e34472e1314f6 |
| SHA512 | 44b4c06c8239c644751e01008864ed294c468ca7c1af884b069c1954490f50ddddd0dca7bc114999eb4c8f0ca29ecf13a143e32d5e2d5ad29e1110fa03aa08b0 |
memory/2360-8-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/1668-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1668-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2608-9-0x00000000002D0000-0x00000000003D0000-memory.dmp
memory/1668-13-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2608-16-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/2608-15-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/1668-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1668-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/1668-21-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-25 18:41
Reported
2024-03-25 18:43
Platform
win10v2004-20240226-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\rftiouo\ImagePath = "C:\\Windows\\SysWOW64\\rftiouo\\umrryqko.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.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\rftiouo\umrryqko.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4892 set thread context of 3292 | N/A | C:\Windows\SysWOW64\rftiouo\umrryqko.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\deb0c884cd5bdf35238e063bc643c2e5.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rftiouo\umrryqko.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.exe
"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rftiouo\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\umrryqko.exe" C:\Windows\SysWOW64\rftiouo\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rftiouo binPath= "C:\Windows\SysWOW64\rftiouo\umrryqko.exe /d\"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rftiouo "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rftiouo
C:\Windows\SysWOW64\rftiouo\umrryqko.exe
C:\Windows\SysWOW64\rftiouo\umrryqko.exe /d"C:\Users\Admin\AppData\Local\Temp\deb0c884cd5bdf35238e063bc643c2e5.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 452 -p 3520 -ip 3520
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3520 -s 1144
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4892 -ip 4892
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4892 -s 520
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.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 | 52.101.11.0:25 | 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 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.204.79:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.160.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | 210.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 58.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| BE | 142.251.168.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 88.156.103.20.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 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 128.230.140.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 196.178.17.96.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 |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 12.173.189.20.in-addr.arpa | udp |
Files
memory/3520-1-0x0000000002DC0000-0x0000000002EC0000-memory.dmp
memory/3520-2-0x0000000002CF0000-0x0000000002D03000-memory.dmp
memory/3520-4-0x0000000000400000-0x0000000002C68000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\umrryqko.exe
| MD5 | 2232ee21559e758efa573ea441a22079 |
| SHA1 | 90facbe9e15c277e6017acf19e16b5741561db6f |
| SHA256 | 2b2d3ad70a25acc6507ef12b6d6840f2b875afd52b471ebc2d7882bf3100b1b6 |
| SHA512 | 3d9bba60e4b7e7c34a730cdb2a3b7360377ffe64d9ccdae435eedd42e4e46c09cffcb97ff72f5d2b1bf22bc122cdf22b12a8ae93797b71c2b1e889bea0bb35b2 |
C:\Windows\SysWOW64\rftiouo\umrryqko.exe
| MD5 | fb53adeea5e5958b4583bf150b4ea358 |
| SHA1 | ccd655df72192627111c7de74ce1616b2322f661 |
| SHA256 | a724dc068b93cd5a0015fd57c5ce873c4e636a69f7fc62e34b736c30efcf9e7e |
| SHA512 | 7f1a8774780f0c65fe4f1235cf78c936d5a0680527f538db870ae0527c5137c9446bcb51f34e71a3bbe6e930444649baa315d36119ecffffb1a1ddcbbd31e011 |
memory/3520-8-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/3520-9-0x0000000002CF0000-0x0000000002D03000-memory.dmp
memory/4892-10-0x0000000002D70000-0x0000000002E70000-memory.dmp
memory/3292-11-0x0000000000E20000-0x0000000000E35000-memory.dmp
memory/4892-15-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/3292-14-0x0000000000E20000-0x0000000000E35000-memory.dmp
memory/3292-17-0x0000000000E20000-0x0000000000E35000-memory.dmp
memory/4892-18-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/3292-19-0x0000000000E20000-0x0000000000E35000-memory.dmp