Analysis Overview
SHA256
d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23
Threat Level: Known bad
The file f15c951b1ec384cab7e3bee192122626_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Checks BIOS information in registry
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Enumerates system info in registry
Modifies registry class
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 15:15
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 15:15
Reported
2024-04-15 15:17
Platform
win7-20240221-en
Max time kernel
150s
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:\\install\\taskeng.exe" | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.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\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\install\taskeng.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\install\taskeng.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\task@skip = "C:\\install\\taskeng.exe" | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\install\taskeng.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.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\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\install\taskeng.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2304 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
| PID 2304 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
| PID 2304 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
| PID 2304 wrote to memory of 2616 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe"
C:\install\taskeng.exe
"C:\install\taskeng.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
Files
memory/2304-0-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2304-1-0x00000000002A0000-0x00000000002A1000-memory.dmp
\install\taskeng.exe
| MD5 | f15c951b1ec384cab7e3bee192122626 |
| SHA1 | e58821eb0fdc4d4eed85265ba4c495b7ddb371a1 |
| SHA256 | d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23 |
| SHA512 | 18d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946 |
memory/2304-12-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-14-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-15-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/2616-16-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-17-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-18-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-19-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-20-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-21-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-22-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-23-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-24-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-25-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-26-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-27-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-28-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-29-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/2616-30-0x0000000000400000-0x00000000004FBE40-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 15:15
Reported
2024-04-15 15:17
Platform
win10v2004-20240412-en
Max time kernel
150s
Max time network
155s
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:\\install\\taskeng.exe" | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.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\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\install\taskeng.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\install\taskeng.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4092317236-2027488869-1227795436-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\task@skip = "C:\\install\\taskeng.exe" | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\install\taskeng.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\install\taskeng.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4188 wrote to memory of 4720 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
| PID 4188 wrote to memory of 4720 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
| PID 4188 wrote to memory of 4720 | N/A | C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe | C:\install\taskeng.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f15c951b1ec384cab7e3bee192122626_JaffaCakes118.exe"
C:\install\taskeng.exe
"C:\install\taskeng.exe"
Network
| Country | Destination | Domain | Proto |
| 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 | 91.90.14.23.in-addr.arpa | udp |
| 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 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 52.111.229.19:443 | tcp | |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
| US | 8.8.8.8:53 | 24.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | pablito89.no-ip.biz | udp |
Files
memory/4188-0-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4188-1-0x00000000027E0000-0x00000000027E1000-memory.dmp
C:\install\taskeng.exe
| MD5 | f15c951b1ec384cab7e3bee192122626 |
| SHA1 | e58821eb0fdc4d4eed85265ba4c495b7ddb371a1 |
| SHA256 | d1b35bd0810cc6590b227a815ace1a9cf795f9a917bba2fa74ce5f1262387f23 |
| SHA512 | 18d83c4482e5d8762ca241f8935e88464e43801af96876a8cd2c299a07eb41dcc977afe12766b478ecc98c0dea485e186553c79dbc12df788361411961e7f946 |
memory/4188-35-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-36-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-37-0x00000000027D0000-0x00000000027D1000-memory.dmp
memory/4720-38-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-39-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-40-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-41-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-42-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-43-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-44-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-45-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-46-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-47-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-48-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-49-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-50-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-51-0x0000000000400000-0x00000000004FBE40-memory.dmp
memory/4720-52-0x0000000000400000-0x00000000004FBE40-memory.dmp