Analysis Overview
SHA256
1e3adf9d47bc468007e2e0901b464546f8db71116da4ceaff39ff1521373e420
Threat Level: Known bad
The file 15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Modifies WinLogon for persistence
Darkcomet
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 AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-27 10:30
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-27 10:30
Reported
2024-06-27 10:33
Platform
win7-20240611-en
Max time kernel
142s
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| 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\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\MacroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_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:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2084 wrote to memory of 2892 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2084 wrote to memory of 2892 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2084 wrote to memory of 2892 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2084 wrote to memory of 2892 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp |
Files
memory/2084-0-0x0000000000300000-0x0000000000301000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 15a998925e3e0ac2ca2c0da01634f778 |
| SHA1 | cdecd718b27533905f782c58687fd65505be63b9 |
| SHA256 | 1e3adf9d47bc468007e2e0901b464546f8db71116da4ceaff39ff1521373e420 |
| SHA512 | 03bcb296f95e5dde0f7deb34f69677893291483ec3cef2c637c048b58045a60b8b9c111125e811e5a685961ad9f1c8adff85e153235552034e7849a38d15ceb7 |
memory/2084-11-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/2892-12-0x0000000000250000-0x0000000000251000-memory.dmp
memory/2892-13-0x0000000000400000-0x00000000004C7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-27 10:30
Reported
2024-06-27 10:33
Platform
win10v2004-20240508-en
Max time kernel
147s
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| 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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MacroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_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:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2392 wrote to memory of 2812 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2392 wrote to memory of 2812 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2392 wrote to memory of 2812 | N/A | C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15a998925e3e0ac2ca2c0da01634f778_JaffaCakes118.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 | 8.8.8.8.in-addr.arpa | udp |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp | |
| BG | 95.111.42.68:1605 | tcp |
Files
memory/2392-0-0x0000000002140000-0x0000000002141000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 15a998925e3e0ac2ca2c0da01634f778 |
| SHA1 | cdecd718b27533905f782c58687fd65505be63b9 |
| SHA256 | 1e3adf9d47bc468007e2e0901b464546f8db71116da4ceaff39ff1521373e420 |
| SHA512 | 03bcb296f95e5dde0f7deb34f69677893291483ec3cef2c637c048b58045a60b8b9c111125e811e5a685961ad9f1c8adff85e153235552034e7849a38d15ceb7 |
memory/2392-13-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/2812-14-0x0000000002080000-0x0000000002081000-memory.dmp
memory/2812-15-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/2812-21-0x0000000000400000-0x00000000004C7000-memory.dmp