Analysis Overview
SHA256
dc2bbbadf241dc21246ca32daaea5abcef6c5141ca83cbb863c48e6d4b17646e
Threat Level: Known bad
The file 650e8eebea969067fdde31da20d9b0ba_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Darkcomet
Modifies firewall policy service
Modifies WinLogon for persistence
Sets file to hidden
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Windows directory
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Views/modifies file attributes
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-22 22:31
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-22 22:31
Reported
2024-07-22 23:33
Platform
win7-20240708-en
Max time kernel
148s
Max time network
149s
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:\\Windows\\MSWINST\\mswinstat.exe" | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\MSWINST\mswinstat.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2240 set thread context of 1792 | N/A | C:\Windows\MSWINST\mswinstat.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\MSWINST\mswinstat.exe | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSWINST\mswinstat.exe | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSWINST\ | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
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\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe" +s +h
C:\Windows\MSWINST\mswinstat.exe
"C:\Windows\MSWINST\mswinstat.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp | |
| N/A | 192.168.0.106:1605 | tcp |
Files
memory/2308-0-0x0000000000260000-0x0000000000261000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
| MD5 | 996f0aaed9af6625ed3e623c73d2965d |
| SHA1 | cbd202d3723fe64b4455cb25bbeab4dab018fea2 |
| SHA256 | 3f191bad7339a018fb0022c72759a6526e2f961154fbdd16ec7942f83930521b |
| SHA512 | dbfb3fae42f0f65956173293acbf816ed0625d6297deb1046c513512bd969c8494d1f3e253bd1ee7ba30f7394b9a78fd8d869ff75aa3ce13b6e61d054b8c6b3d |
C:\Windows\MSWINST\mswinstat.exe
| MD5 | 650e8eebea969067fdde31da20d9b0ba |
| SHA1 | 710f976b524504e65d01ddb947a7bb756a9e1fd6 |
| SHA256 | dc2bbbadf241dc21246ca32daaea5abcef6c5141ca83cbb863c48e6d4b17646e |
| SHA512 | b41a26c3c62d9b0e21310916a09d762d93ab94edfdf410b4b254655489cdde92c7719fb866ff37ce8c6bae6f1517252071053a36f727dc6c0faf2551a8753029 |
memory/2308-21-0x0000000000400000-0x00000000004C3000-memory.dmp
memory/1792-23-0x0000000000400000-0x00000000004C3000-memory.dmp
memory/2240-24-0x0000000000400000-0x00000000004C3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-22 22:31
Reported
2024-07-22 23:32
Platform
win10v2004-20240709-en
Max time kernel
148s
Max time network
150s
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:\\Windows\\MSWINST\\mswinstat.exe" | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\MSWINST\mswinstat.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Windows\MSWINST\mswinstat.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSWINST\\mswinstat.exe" | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 472 set thread context of 2600 | N/A | C:\Windows\MSWINST\mswinstat.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\MSWINST\mswinstat.exe | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSWINST\mswinstat.exe | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSWINST\ | C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.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\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
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\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\650e8eebea969067fdde31da20d9b0ba_JaffaCakes118.exe" +s +h
C:\Windows\MSWINST\mswinstat.exe
"C:\Windows\MSWINST\mswinstat.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| 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 |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp | |
| US | 8.8.8.8:53 | ifcvehzadx.zapto.org | udp |
| N/A | 192.168.0.106:1605 | tcp |
Files
memory/1120-0-0x00000000007D0000-0x00000000007D1000-memory.dmp
C:\Windows\MSWINST\mswinstat.exe
| MD5 | 650e8eebea969067fdde31da20d9b0ba |
| SHA1 | 710f976b524504e65d01ddb947a7bb756a9e1fd6 |
| SHA256 | dc2bbbadf241dc21246ca32daaea5abcef6c5141ca83cbb863c48e6d4b17646e |
| SHA512 | b41a26c3c62d9b0e21310916a09d762d93ab94edfdf410b4b254655489cdde92c7719fb866ff37ce8c6bae6f1517252071053a36f727dc6c0faf2551a8753029 |
C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat
| MD5 | 996f0aaed9af6625ed3e623c73d2965d |
| SHA1 | cbd202d3723fe64b4455cb25bbeab4dab018fea2 |
| SHA256 | 3f191bad7339a018fb0022c72759a6526e2f961154fbdd16ec7942f83930521b |
| SHA512 | dbfb3fae42f0f65956173293acbf816ed0625d6297deb1046c513512bd969c8494d1f3e253bd1ee7ba30f7394b9a78fd8d869ff75aa3ce13b6e61d054b8c6b3d |
memory/1120-66-0x0000000000400000-0x00000000004C3000-memory.dmp
memory/472-67-0x0000000002720000-0x0000000002721000-memory.dmp
memory/2600-68-0x0000000000400000-0x00000000004C3000-memory.dmp
memory/472-69-0x0000000000400000-0x00000000004C3000-memory.dmp