Analysis Overview
SHA256
3c02b033d320021a76bb882beea0d2f26c8ae88f9174b012455b4b6e8f1fde7e
Threat Level: Known bad
The file 6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Darkcomet family
Modifies WinLogon for persistence
Checks computer location settings
Checks BIOS information in registry
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Checks processor information in registry
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Enumerates system info in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-22 18:59
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-07-22 18:59
Reported
2024-07-22 19:15
Platform
win7-20240705-en
Max time kernel
150s
Max time network
122s
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:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_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\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windows\SysWOW64\explorer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1992 set thread context of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Windows\SysWOW64\explorer.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\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1992 wrote to memory of 2172 | N/A | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | C:\Windows\SysWOW64\explorer.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
Files
memory/1992-0-0x0000000000250000-0x0000000000251000-memory.dmp
memory/2172-3-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-10-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-9-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1992-8-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-7-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2172-11-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-12-0x0000000000170000-0x0000000000171000-memory.dmp
memory/2172-13-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-15-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-16-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-14-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-17-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2172-18-0x0000000000170000-0x0000000000171000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-22 18:59
Reported
2024-07-22 19:16
Platform
win10v2004-20240709-en
Max time kernel
149s
Max time network
152s
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:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_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\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.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-1-5-21-1176886754-713327781-2233697964-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdate.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1176886754-713327781-2233697964-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| 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\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.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 |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windupdt\winupdate.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\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.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 WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6466d57f553e2f1a1fa2b04887cb39f1_JaffaCakes118.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
C:\Windupdt\winupdate.exe
"C:\Windupdt\winupdate.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | 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 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | vaurss.no-ip.info | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/3504-0-0x00000000022C0000-0x00000000022C1000-memory.dmp
C:\Windupdt\winupdate.exe
| MD5 | 6466d57f553e2f1a1fa2b04887cb39f1 |
| SHA1 | 91d78fc011d9cbb2f3e7fe8f74af26e447026320 |
| SHA256 | 3c02b033d320021a76bb882beea0d2f26c8ae88f9174b012455b4b6e8f1fde7e |
| SHA512 | 6df6934886cf9e7d8859ff626eb09db66f449dde780b9d262ed8fd3891e02c7a39524c91265c1a0524541a6d9eb27fc546a549d6338de43059fb4f31374ee100 |
memory/3504-33-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-35-0x00000000006B0000-0x00000000006B1000-memory.dmp
memory/1528-36-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-37-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-38-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-39-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-40-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-41-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-42-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-43-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-44-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-45-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-46-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-47-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-48-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/1528-49-0x0000000000400000-0x00000000004C8000-memory.dmp