Analysis Overview
SHA256
a8b1e96d76313463404f4f11820f7c8a2110ec44133a2a59e04a1e62ad6e1976
Threat Level: Known bad
The file 650fd80f02974f7c046b055e09900e8a_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Darkcomet family
Loads dropped DLL
Checks computer location settings
Executes dropped EXE
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-22 22:33
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 22:33
Reported
2024-07-22 23:35
Platform
win7-20240704-en
Max time kernel
149s
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\650fd80f02974f7c046b055e09900e8a_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\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2400 set thread context of 1976 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
Files
memory/2392-0-0x0000000000260000-0x0000000000261000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 650fd80f02974f7c046b055e09900e8a |
| SHA1 | 22e282ca1ce25dfa1aa52abd4148acb7aa6e5182 |
| SHA256 | a8b1e96d76313463404f4f11820f7c8a2110ec44133a2a59e04a1e62ad6e1976 |
| SHA512 | 9cde349b9a1fe44f9f98b569d855a5486e68a155347f043ce8876793d720e709fc8fd73213f7bbbe1fb00a16e67e1c4a2c8cf1c7ca5b050fa481fadda8156fd1 |
memory/2392-11-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2400-12-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/2400-15-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/1976-14-0x0000000000400000-0x00000000004AF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-22 22:33
Reported
2024-07-22 23:37
Platform
win10v2004-20240709-en
Max time kernel
150s
Max time network
148s
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\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_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-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3532 set thread context of 3724 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\650fd80f02974f7c046b055e09900e8a_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | 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 | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
| US | 8.8.8.8:53 | mrtarek.no-ip.biz | udp |
Files
memory/1056-0-0x00000000005F0000-0x00000000005F1000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 650fd80f02974f7c046b055e09900e8a |
| SHA1 | 22e282ca1ce25dfa1aa52abd4148acb7aa6e5182 |
| SHA256 | a8b1e96d76313463404f4f11820f7c8a2110ec44133a2a59e04a1e62ad6e1976 |
| SHA512 | 9cde349b9a1fe44f9f98b569d855a5486e68a155347f043ce8876793d720e709fc8fd73213f7bbbe1fb00a16e67e1c4a2c8cf1c7ca5b050fa481fadda8156fd1 |
memory/1056-13-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/3532-14-0x00000000022C0000-0x00000000022C1000-memory.dmp
memory/3724-15-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/3532-16-0x0000000000400000-0x00000000004AF000-memory.dmp