Analysis Overview
SHA256
3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f
Threat Level: Known bad
The file f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Darkcomet family
Modifies WinLogon for persistence
Disables RegEdit via registry modification
Sets file to hidden
Disables Task Manager via registry modification
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Views/modifies file attributes
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-04-17 22:11
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-17 22:11
Reported
2024-04-17 22:14
Platform
win7-20240221-en
Max time kernel
151s
Max time network
124s
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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.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 |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp | |
| N/A | 127.0.0.1:1604 | tcp |
Files
memory/2184-0-0x00000000001D0000-0x00000000001D1000-memory.dmp
\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
| MD5 | f6ae1759275f7ae83110cb1c907a7c8d |
| SHA1 | 8b5434e0250bd32da36c5a2b1b1d408fcee28b56 |
| SHA256 | 3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f |
| SHA512 | 314248c64797f599cc29c2e554b2985360fbfdb910550b7eb10e818ef4c74aa5cc68657932a27a5c1266da55eb21f736e2faa3188e0b3b5313f6f2936c725d6c |
memory/2520-11-0x00000000001D0000-0x00000000001D1000-memory.dmp
memory/2684-13-0x0000000000100000-0x0000000000101000-memory.dmp
memory/2684-41-0x00000000002C0000-0x00000000002C1000-memory.dmp
memory/2184-42-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-43-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-44-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-45-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-46-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-47-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-48-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-49-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-50-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-51-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-52-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-53-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2520-55-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-17 22:11
Reported
2024-04-17 22:13
Platform
win10v2004-20240412-en
Max time kernel
150s
Max time network
145s
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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| 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-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.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 |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| N/A | 127.0.0.1:1604 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| BE | 2.17.197.240:80 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/4176-0-0x0000000002280000-0x0000000002281000-memory.dmp
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
| MD5 | f6ae1759275f7ae83110cb1c907a7c8d |
| SHA1 | 8b5434e0250bd32da36c5a2b1b1d408fcee28b56 |
| SHA256 | 3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f |
| SHA512 | 314248c64797f599cc29c2e554b2985360fbfdb910550b7eb10e818ef4c74aa5cc68657932a27a5c1266da55eb21f736e2faa3188e0b3b5313f6f2936c725d6c |
memory/3732-13-0x0000000002110000-0x0000000002111000-memory.dmp
memory/4940-14-0x00000000008A0000-0x00000000008A1000-memory.dmp
memory/4176-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3732-16-0x0000000000400000-0x00000000004B2000-memory.dmp