Analysis Overview
SHA256
5d12db2475846f968b67d2dc287bd9d0fbc8f47f69f03911ec16c2ed23eb9324
Threat Level: Known bad
The file efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Windows security bypass
Modifies security service
Darkcomet
Modifies WinLogon for persistence
Checks computer location settings
Deletes itself
Windows security modification
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Runs ping.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-14 23:27
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-14 23:27
Reported
2024-04-14 23:30
Platform
win7-20240220-en
Max time kernel
87s
Max time network
118s
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\\winupdatec.exe" | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Windupdt\winupdatec.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdatec.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdatec.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdatec = "C:\\Windupdt\\winupdatec.exe" | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
C:\Windupdt\winupdatec.exe
"C:\Windupdt\winupdatec.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
Files
memory/2172-0-0x0000000000270000-0x0000000000271000-memory.dmp
C:\Windupdt\winupdatec.exe
| MD5 | efc29049fa5d14ed1db26fc6fbc7174a |
| SHA1 | 2bba18e0c933936dd9290c6dde35c5fc1b7bd699 |
| SHA256 | 5d12db2475846f968b67d2dc287bd9d0fbc8f47f69f03911ec16c2ed23eb9324 |
| SHA512 | c9df29c2b918d3f4cebef4eba1ba2f8dc1cdf8a464bf8eb4e876852c385f412eccd80029a54414c678bb9a66828edfa0e74c06c445e5a29afe8f48b0ed049de8 |
memory/2172-13-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-14-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-15-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-16-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-17-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-18-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-19-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-20-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-21-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-22-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-23-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/2156-24-0x0000000000400000-0x00000000004B3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-14 23:27
Reported
2024-04-14 23:30
Platform
win10v2004-20240412-en
Max time kernel
128s
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:\\Windupdt\\winupdatec.exe" | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Windupdt\winupdatec.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdatec.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windupdt\winupdatec.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3198953144-1466794930-246379610-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdatec = "C:\\Windupdt\\winupdatec.exe" | C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
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\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windupdt\winupdatec.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
C:\Windupdt\winupdatec.exe
"C:\Windupdt\winupdatec.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\efc29049fa5d14ed1db26fc6fbc7174a_JaffaCakes118.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
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 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 80.192.122.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 52.111.227.13:443 | tcp | |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | niztest.no-ip.biz | udp |
| US | 8.8.8.8:53 | 209.143.182.52.in-addr.arpa | udp |
Files
memory/2744-0-0x00000000006E0000-0x00000000006E1000-memory.dmp
C:\Windupdt\winupdatec.exe
| MD5 | efc29049fa5d14ed1db26fc6fbc7174a |
| SHA1 | 2bba18e0c933936dd9290c6dde35c5fc1b7bd699 |
| SHA256 | 5d12db2475846f968b67d2dc287bd9d0fbc8f47f69f03911ec16c2ed23eb9324 |
| SHA512 | c9df29c2b918d3f4cebef4eba1ba2f8dc1cdf8a464bf8eb4e876852c385f412eccd80029a54414c678bb9a66828edfa0e74c06c445e5a29afe8f48b0ed049de8 |
memory/4320-36-0x00000000006C0000-0x00000000006C1000-memory.dmp
memory/2744-35-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-37-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-38-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-39-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-40-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-41-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-42-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-43-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-44-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-45-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-46-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-47-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-48-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-49-0x0000000000400000-0x00000000004B3000-memory.dmp
memory/4320-50-0x0000000000400000-0x00000000004B3000-memory.dmp