Analysis Overview
SHA256
553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833
Threat Level: Known bad
The file 553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Windows security bypass
Modifies WinLogon for persistence
Modifies security service
Executes dropped EXE
Sets file to hidden
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Windows security modification
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Enumerates physical storage devices
Modifies registry class
Suspicious use of FindShellTrayWindow
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of SetWindowsHookEx
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-11 02:33
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-11 02:33
Reported
2022-10-11 03:38
Platform
win7-20220812-en
Max time kernel
150s
Max time network
151s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\DllHost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833.exe
"C:\Users\Admin\AppData\Local\Temp\553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833.exe"
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
"C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | hashtagyolo.sytes.net | udp |
| NL | 77.248.186.202:1604 | tcp | |
| NL | 77.248.186.202:1604 | tcp | |
| NL | 77.248.186.202:1604 | tcp | |
| NL | 77.248.186.202:1604 | tcp | |
| NL | 77.248.186.202:1604 | tcp | |
| NL | 77.248.186.202:1604 | tcp |
Files
memory/832-54-0x000007FEF49B0000-0x000007FEF53D3000-memory.dmp
memory/832-55-0x000007FEEEC20000-0x000007FEEFCB6000-memory.dmp
memory/1892-56-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/832-59-0x0000000001E26000-0x0000000001E45000-memory.dmp
memory/1892-58-0x0000000075921000-0x0000000075923000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/1956-61-0x0000000000000000-mapping.dmp
memory/1980-62-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\BOOBSDAY-GIRL-WEBCAM-COVERING-HUGE-BOOBS.JPG
| MD5 | fe6804f85ed930ddf37a07add7531f94 |
| SHA1 | 2b9e231e203bdd6595e017452a6f46ae877346f5 |
| SHA256 | 5de2a01b97d3368692effdf3d2cf4ed31de4cc756728a67035c75d2887bc004b |
| SHA512 | cfc686809511c2672ed86ef6c4311e9c2904a69ac794b8135ee18c80e24a14db850a69240cbb2e555c4051dd93093b3c8c849e6f3e14e0fe7dcbefa00410ab6c |
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/696-67-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/1224-71-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-11 02:33
Reported
2022-10-11 03:40
Platform
win10v2004-20220812-en
Max time kernel
151s
Max time network
152s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\Crypted.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833.exe
"C:\Users\Admin\AppData\Local\Temp\553042bd72a07ada473128811ca5a4e56249c2e749cbb8699e6d88d9bcb25833.exe"
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
"C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | f.7.6.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.7.0.0.0.0.3.0.1.3.0.6.2.ip6.arpa | udp |
| NL | 87.248.202.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| GB | 51.132.193.104:443 | tcp | |
| US | 8.8.8.8:53 | hashtagyolo.sytes.net | udp |
| NL | 77.248.186.202:1604 | tcp | |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | 176.122.125.40.in-addr.arpa | udp |
Files
memory/4448-132-0x00007FFAD8040000-0x00007FFAD8A76000-memory.dmp
memory/1764-133-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
C:\Users\Admin\AppData\Local\Temp\Crypted.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/5008-136-0x0000000000000000-mapping.dmp
memory/1132-137-0x0000000000000000-mapping.dmp
memory/228-138-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | a5301725ad37183aeb89e4515fcff0d5 |
| SHA1 | 17ac030c7ea4d427548e9b4fdd456425c8a6ac9e |
| SHA256 | 00197e1dd48e47f58023c1f92715a5dae72022d5bd27c8fa6922e108be7fc37a |
| SHA512 | 95e422dc9828b690d6938e0f372b6a74a13c91b56c8f1c57752eb8e92f67edbb609084a128e41c471c6fdbfab83103332c084a3a94be3639d3083e3cb77ce2dc |
memory/4788-141-0x0000000000000000-mapping.dmp