Analysis Overview
SHA256
2decd81550f4d79ec936cf7587caf057782c98b4147b604084aa73d599a04a3d
Threat Level: Known bad
The file JaffaCakes118_31f58638a0a7fa73b994e499a535a122 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Darkcomet family
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-28 05:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-28 05:41
Reported
2025-02-28 05:43
Platform
win7-20240903-en
Max time kernel
121s
Max time network
121s
Command Line
Signatures
Darkcomet
Darkcomet family
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\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1880 set thread context of 2628 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe | C:\Users\Admin\AppData\Local\Temp\svchost.exe |
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\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe"
C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
Files
memory/1880-0-0x0000000074571000-0x0000000074572000-memory.dmp
memory/1880-1-0x0000000074570000-0x0000000074B1B000-memory.dmp
memory/1880-2-0x0000000074570000-0x0000000074B1B000-memory.dmp
\Users\Admin\AppData\Local\Temp\svchost.exe
| MD5 | 34aa912defa18c2c129f1e09d75c1d7e |
| SHA1 | 9c3046324657505a30ecd9b1fdb46c05bde7d470 |
| SHA256 | 6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386 |
| SHA512 | d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98 |
memory/2628-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-23-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-27-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-28-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1880-26-0x0000000074570000-0x0000000074B1B000-memory.dmp
memory/2628-25-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2628-19-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-17-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-11-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-9-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-8-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-7-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-13-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2628-38-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-28 05:41
Reported
2025-02-28 05:43
Platform
win10v2004-20250217-en
Max time kernel
128s
Max time network
139s
Command Line
Signatures
Darkcomet
Darkcomet family
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\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3312 set thread context of 3448 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe | C:\Users\Admin\AppData\Local\Temp\svchost.exe |
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\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_31f58638a0a7fa73b994e499a535a122.exe"
C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\AppData\Local\Temp\svchost.exe
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
Files
memory/3312-0-0x0000000075412000-0x0000000075413000-memory.dmp
memory/3312-1-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/3312-2-0x0000000075410000-0x00000000759C1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\svchost.exe
| MD5 | d881de17aa8f2e2c08cbb7b265f928f9 |
| SHA1 | 08936aebc87decf0af6e8eada191062b5e65ac2a |
| SHA256 | b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0 |
| SHA512 | 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34 |
memory/3448-5-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3448-8-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3448-12-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3448-10-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3448-13-0x00000000025B0000-0x00000000025B1000-memory.dmp
memory/3312-25-0x0000000075410000-0x00000000759C1000-memory.dmp
memory/3448-27-0x0000000000400000-0x00000000004B2000-memory.dmp