Analysis Overview
SHA256
26f9f8ca45e78dc6649bde7867fba0b5e76534ed8cfa176b096b06c0b0db7864
Threat Level: Known bad
The file JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Darkcomet family
Modifies WinLogon for persistence
Darkcomet
Loads dropped DLL
Checks BIOS information in registry
Checks computer location settings
Executes dropped EXE
Windows security modification
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Enumerates system info in registry
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-26 11:32
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-26 11:32
Reported
2025-02-26 11:35
Platform
win10v2004-20250217-en
Max time kernel
149s
Max time network
148s
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:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdate.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windupdt\winupdate.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-22591836-1183090055-1220658180-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.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\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windupdt\winupdate.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Windupdt\winupdate.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1704 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | C:\Windupdt\winupdate.exe |
| PID 1704 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | C:\Windupdt\winupdate.exe |
| PID 1704 wrote to memory of 1928 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | C:\Windupdt\winupdate.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe"
C:\Windupdt\winupdate.exe
"C:\Windupdt\winupdate.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| 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 | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
Files
memory/1704-0-0x00000000022C0000-0x00000000022C1000-memory.dmp
C:\Windupdt\winupdate.exe
| MD5 | 25a7e92820a8ca1e5571bc5a546fdee8 |
| SHA1 | fc6d6c499b5fc213093d3470c8a3a2af7bd83a54 |
| SHA256 | 26f9f8ca45e78dc6649bde7867fba0b5e76534ed8cfa176b096b06c0b0db7864 |
| SHA512 | 085e558cc21d10d9cf57a155580ac8e834a62f85ad233c15ee7adb7120a23d78d25754bd94be799ed89f209fd374cd1a6fb8b31309e53927cedc3444f64bef7b |
memory/1704-10-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-11-0x0000000002180000-0x0000000002181000-memory.dmp
memory/1928-13-0x0000000002180000-0x0000000002181000-memory.dmp
memory/1928-12-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-14-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-15-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-16-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-17-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-18-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-19-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-20-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-21-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-22-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-23-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-24-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-25-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/1928-26-0x0000000000400000-0x00000000004D9000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-26 11:32
Reported
2025-02-26 11:35
Platform
win7-20240903-en
Max time kernel
150s
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:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdate.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windupdt\winupdate.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.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\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windupdt\winupdate.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Windupdt\winupdate.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Windupdt\winupdate.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windupdt\winupdate.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25a7e92820a8ca1e5571bc5a546fdee8.exe"
C:\Windupdt\winupdate.exe
"C:\Windupdt\winupdate.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | windowsconnect.no-ip.biz | udp |
Files
memory/2380-0-0x0000000000280000-0x0000000000281000-memory.dmp
\Windupdt\winupdate.exe
| MD5 | 25a7e92820a8ca1e5571bc5a546fdee8 |
| SHA1 | fc6d6c499b5fc213093d3470c8a3a2af7bd83a54 |
| SHA256 | 26f9f8ca45e78dc6649bde7867fba0b5e76534ed8cfa176b096b06c0b0db7864 |
| SHA512 | 085e558cc21d10d9cf57a155580ac8e834a62f85ad233c15ee7adb7120a23d78d25754bd94be799ed89f209fd374cd1a6fb8b31309e53927cedc3444f64bef7b |
memory/2380-8-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-13-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-14-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-15-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-16-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-17-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-18-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-19-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-20-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-21-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-22-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-23-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-24-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-25-0x0000000000400000-0x00000000004D9000-memory.dmp
memory/2548-26-0x0000000000400000-0x00000000004D9000-memory.dmp