Analysis Overview
SHA256
c29308769e6ac527151045a127d4a19a4eca8c978979f8e0b1b8b813b1928677
Threat Level: Known bad
The file 8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet family
Darkcomet
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
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-10 20:14
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-10 20:14
Reported
2024-08-10 20:17
Platform
win7-20240708-en
Max time kernel
150s
Max time network
123s
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\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2396 set thread context of 2336 | N/A | C:\Windows\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\MSDCSC\ | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| File created | C:\Windows\MSDCSC\msdcsc.exe | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSDCSC\msdcsc.exe | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
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\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.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
Processes
C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe"
C:\Windows\MSDCSC\msdcsc.exe
"C:\Windows\MSDCSC\msdcsc.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 | mnanauk-dz.no-ip.biz | udp |
Files
memory/1344-0-0x0000000000260000-0x0000000000261000-memory.dmp
\Windows\MSDCSC\msdcsc.exe
| MD5 | 8783017c005439b3d0f2b3f18a9bcf5d |
| SHA1 | 828d4785737e2c2b044a53b951a605928e2d200d |
| SHA256 | c29308769e6ac527151045a127d4a19a4eca8c978979f8e0b1b8b813b1928677 |
| SHA512 | de2de12db3122ac52b333b3e05d385f696b1747dab2e90bed396337dcfbc7f9728444b72436f507ec66ccd7f804c7ee2c81dca160cadd5390738815f267ef379 |
memory/1344-11-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2396-12-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2336-14-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2396-15-0x0000000000400000-0x00000000004B0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-10 20:14
Reported
2024-08-10 20:17
Platform
win10v2004-20240802-en
Max time kernel
150s
Max time network
146s
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\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 396 set thread context of 2796 | N/A | C:\Windows\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\MSDCSC\ | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| File created | C:\Windows\MSDCSC\msdcsc.exe | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\MSDCSC\msdcsc.exe | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_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
Processes
C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8783017c005439b3d0f2b3f18a9bcf5d_JaffaCakes118.exe"
C:\Windows\MSDCSC\msdcsc.exe
"C:\Windows\MSDCSC\msdcsc.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 |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | 73.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | 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 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
| US | 8.8.8.8:53 | mnanauk-dz.no-ip.biz | udp |
Files
memory/5060-0-0x00000000006C0000-0x00000000006C1000-memory.dmp
C:\Windows\MSDCSC\msdcsc.exe
| MD5 | 8783017c005439b3d0f2b3f18a9bcf5d |
| SHA1 | 828d4785737e2c2b044a53b951a605928e2d200d |
| SHA256 | c29308769e6ac527151045a127d4a19a4eca8c978979f8e0b1b8b813b1928677 |
| SHA512 | de2de12db3122ac52b333b3e05d385f696b1747dab2e90bed396337dcfbc7f9728444b72436f507ec66ccd7f804c7ee2c81dca160cadd5390738815f267ef379 |
memory/5060-12-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/396-14-0x00000000023B0000-0x00000000023B1000-memory.dmp
memory/2796-15-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/396-16-0x0000000000400000-0x00000000004B0000-memory.dmp