Analysis Overview
SHA256
6b6a8ff2f3276c603a55155cc67b5cd98c6d04b16c422201d8e0c77c411c6f63
Threat Level: Known bad
The file b8332866db45bf85ed517c599eaafe54.zip was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Modifies Windows Firewall
Creates new service(s)
Sets service image path in registry
Checks computer location settings
Executes dropped EXE
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Program crash
Unsigned PE
Event Triggered Execution: Netsh Helper DLL
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-09-01 16:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-09-01 16:40
Reported
2024-09-01 16:43
Platform
win7-20240729-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\imksiiw = "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\imksiiw\ImagePath = "C:\\Windows\\SysWOW64\\imksiiw\\amyggrgo.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\imksiiw\amyggrgo.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2760 set thread context of 2700 | N/A | C:\Windows\SysWOW64\imksiiw\amyggrgo.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\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.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\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\cmd.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\imksiiw\amyggrgo.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\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe
"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\imksiiw\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\amyggrgo.exe" C:\Windows\SysWOW64\imksiiw\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create imksiiw binPath= "C:\Windows\SysWOW64\imksiiw\amyggrgo.exe /d\"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description imksiiw "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start imksiiw
C:\Windows\SysWOW64\imksiiw\amyggrgo.exe
C:\Windows\SysWOW64\imksiiw\amyggrgo.exe /d"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.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 |
| 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 | 52.101.42.0:25 | 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 | 67.195.204.79:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.153.26:25 | 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/2052-2-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2052-1-0x0000000000A00000-0x0000000000B00000-memory.dmp
memory/2052-3-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\amyggrgo.exe
| MD5 | 215965cb981c127bfd2d04fc84ce6b81 |
| SHA1 | f69b684f41efe7a2a381cbfc9977a6c201de7bc1 |
| SHA256 | 2efbd3ac6d9e52792753f73d3a6c612a7c9660eae68595715bdf2815cdc667f8 |
| SHA512 | 67346dee80d532fd6270c3bfe5de9a0d73314c04c3dccfbade6795f5956d4ccc4035a61d3591cd1ac325556f7745bd09dcdc74dcb88f78bc34532713b328c25a |
memory/2052-8-0x0000000000400000-0x000000000086B000-memory.dmp
memory/2052-10-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2052-9-0x0000000000020000-0x0000000000033000-memory.dmp
memory/2700-14-0x00000000000D0000-0x00000000000E5000-memory.dmp
memory/2700-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2700-12-0x00000000000D0000-0x00000000000E5000-memory.dmp
memory/2700-16-0x00000000000D0000-0x00000000000E5000-memory.dmp
memory/2760-15-0x0000000000400000-0x000000000086B000-memory.dmp
memory/2700-17-0x00000000000D0000-0x00000000000E5000-memory.dmp
memory/2700-18-0x00000000000D0000-0x00000000000E5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-09-01 16:40
Reported
2024-09-01 16:43
Platform
win10v2004-20240802-en
Max time kernel
146s
Max time network
141s
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\idmdqfkz\ImagePath = "C:\\Windows\\SysWOW64\\idmdqfkz\\htauzfsa.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.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\idmdqfkz\htauzfsa.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3700 set thread context of 1736 | N/A | C:\Windows\SysWOW64\idmdqfkz\htauzfsa.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 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 |
| Key queried | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh | C:\Windows\SysWOW64\netsh.exe | N/A |
Program crash
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\idmdqfkz\htauzfsa.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.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\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\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe
"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\idmdqfkz\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe" C:\Windows\SysWOW64\idmdqfkz\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create idmdqfkz binPath= "C:\Windows\SysWOW64\idmdqfkz\htauzfsa.exe /d\"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description idmdqfkz "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start idmdqfkz
C:\Windows\SysWOW64\idmdqfkz\htauzfsa.exe
C:\Windows\SysWOW64\idmdqfkz\htauzfsa.exe /d"C:\Users\Admin\AppData\Local\Temp\f365d1d600ccc20bde31b7db1fd7a815b73087c9e46676e0d398289af7b7bb71.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 184 -p 3024 -ip 3024
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 804
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3024 -ip 3024
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 596
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3024 -ip 3024
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3700 -ip 3700
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3024 -s 1220
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 516
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3700 -ip 3700
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 540
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3700 -ip 3700
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3700 -s 524
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.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 |
| 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 | 171.201.76.20.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 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.204.73:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.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 | 142.250.153.27:25 | 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 | 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 | 52.111.227.13:443 | tcp | |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 11.227.111.52.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 |
Files
memory/3024-1-0x0000000000A90000-0x0000000000B90000-memory.dmp
memory/3024-2-0x0000000000CD0000-0x0000000000CE3000-memory.dmp
memory/3024-4-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\htauzfsa.exe
| MD5 | 7c7444f566fd2dcd8a3fbb4f97c540bf |
| SHA1 | e74ddbae29813ccc6d96ff4c4578a5af0de78ca1 |
| SHA256 | 6e3ad445b3ddd4b4eb2f7775bff9699db748387080784826328a560dc280f823 |
| SHA512 | bad8303214e5d79acd0090be2cda75a347c55efeb37dfc4f9985d9f266b89f31f984fc3bf85efc5ce42dc01acbd00ac57cee45218bdfaef4e351d4ec9fafe2a5 |
memory/3700-8-0x0000000000400000-0x000000000086B000-memory.dmp
memory/3700-12-0x0000000000400000-0x000000000086B000-memory.dmp
memory/3700-10-0x0000000000400000-0x000000000086B000-memory.dmp
memory/3024-15-0x0000000000400000-0x0000000000415000-memory.dmp
memory/3024-14-0x0000000000CD0000-0x0000000000CE3000-memory.dmp
memory/3024-13-0x0000000000400000-0x000000000086B000-memory.dmp
memory/1736-9-0x00000000009E0000-0x00000000009F5000-memory.dmp
memory/1736-17-0x00000000009E0000-0x00000000009F5000-memory.dmp
memory/1736-18-0x00000000009E0000-0x00000000009F5000-memory.dmp