Analysis Overview
SHA256
8de3b7637c2a61356820e7ba770b6e0f88b75b6da8c096534abc9a5544f68131
Threat Level: Known bad
The file 58639373364af48018278c14c1f4a897_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Darkcomet family
Disables Task Manager via registry modification
Disables RegEdit via registry modification
Sets file to hidden
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-19 03:44
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-19 03:44
Reported
2024-05-19 03:47
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
147s
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\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\Documents\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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
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
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe" +s +h
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe" +s +h
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| 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 | 17.160.190.20.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
Files
memory/1688-0-0x0000000002280000-0x0000000002281000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 58639373364af48018278c14c1f4a897 |
| SHA1 | 9ba681d7c4a3dc6ed86efe73506fc2a8a676f9a4 |
| SHA256 | 8de3b7637c2a61356820e7ba770b6e0f88b75b6da8c096534abc9a5544f68131 |
| SHA512 | 332360544cdb2818f21cd9bf413b969f9e84c43f6198789383872769501a9ba9f25b45414265cc045b411e2ba4b3bf7289071ae9fc16242127768e12f105568e |
memory/4788-13-0x0000000002070000-0x0000000002071000-memory.dmp
memory/1688-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-16-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-17-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-18-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-19-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-20-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-21-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-22-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-23-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-24-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-25-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-26-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-27-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4788-28-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-19 03:44
Reported
2024-05-19 03:47
Platform
win7-20240221-en
Max time kernel
150s
Max time network
119s
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\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\Documents\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 |
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\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
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
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe" +s +h
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\58639373364af48018278c14c1f4a897_JaffaCakes118.exe" +s +h
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | igorfeed.hopto.org | udp |
Files
memory/2836-0-0x00000000003E0000-0x00000000003E1000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 58639373364af48018278c14c1f4a897 |
| SHA1 | 9ba681d7c4a3dc6ed86efe73506fc2a8a676f9a4 |
| SHA256 | 8de3b7637c2a61356820e7ba770b6e0f88b75b6da8c096534abc9a5544f68131 |
| SHA512 | 332360544cdb2818f21cd9bf413b969f9e84c43f6198789383872769501a9ba9f25b45414265cc045b411e2ba4b3bf7289071ae9fc16242127768e12f105568e |
memory/3004-11-0x0000000000200000-0x0000000000201000-memory.dmp
memory/2836-13-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-15-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-16-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-17-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-18-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-19-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-20-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-21-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-22-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-23-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-24-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-25-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-26-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/3004-27-0x0000000000400000-0x00000000004B2000-memory.dmp