Analysis Overview
SHA256
9740492962928aafcfc3823083ab7e1b092afdbccc830c607f01019537b80407
Threat Level: Known bad
The file 63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Darkcomet family
Loads dropped DLL
Executes dropped EXE
UPX packed file
Checks computer location settings
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-21 15:32
Signatures
Darkcomet family
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 15:32
Reported
2024-05-21 15:34
Platform
win7-20240220-en
Max time kernel
149s
Max time network
150s
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\63cbce809a2813c3a62433cd1a71ece6_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\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\DllHost.exe | N/A |
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
Processes
C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe"
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp | |
| N/A | 192.168.0.102:1995 | tcp |
Files
memory/2820-60-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2596-59-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2596-21-0x0000000000080000-0x0000000000081000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 63cbce809a2813c3a62433cd1a71ece6 |
| SHA1 | 611253d54dd926899e9e6d7607ef137a3a1562c1 |
| SHA256 | 9740492962928aafcfc3823083ab7e1b092afdbccc830c607f01019537b80407 |
| SHA512 | 6febbe6f6feb7b4159e97bbd8398fe08144463f99a16e7d0f10e05e62d2d0b516d12775fb0999dfd1716260b0e06dcfe242fdd2ed44201c89e285b16b4c04370 |
memory/2820-19-0x0000000004190000-0x000000000426C000-memory.dmp
memory/2636-18-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2820-17-0x0000000004190000-0x000000000426C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\LTHO0NZGK1Y.JPG
| MD5 | 9e0897de252ddb54f53daae74feccc38 |
| SHA1 | fbc9d72751edd523ed13121941df428c350532c0 |
| SHA256 | bc1972daaded3ee83c0279d1f31e7f47cd1fd6281be724d45f31004827fe4ed1 |
| SHA512 | c3baabdffb82bba424226f14317bb17bfe08c9fa30bae4d8a8919cf646f24f1793d40b3029e3e152a6aa9ec7fbe9169d74e01f83aa0c8202a970e0d664e6a29a |
memory/2920-7-0x0000000000800000-0x0000000000801000-memory.dmp
memory/2920-6-0x00000000003E0000-0x00000000003E2000-memory.dmp
memory/2820-5-0x0000000002300000-0x0000000002302000-memory.dmp
memory/2820-1-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2820-0-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2636-61-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2920-62-0x0000000000800000-0x0000000000801000-memory.dmp
memory/2636-64-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2636-66-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2636-69-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2636-71-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2636-73-0x0000000000400000-0x00000000004DC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 15:32
Reported
2024-05-21 15:34
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
150s
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\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_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\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.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
Processes
C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\63cbce809a2813c3a62433cd1a71ece6_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | mfashi.ddns.net | udp |
| N/A | 192.168.0.102:1995 | tcp | |
| US | 8.8.8.8:53 | 7.173.189.20.in-addr.arpa | udp |
Files
memory/756-0-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/756-1-0x0000000000B00000-0x0000000000B01000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 63cbce809a2813c3a62433cd1a71ece6 |
| SHA1 | 611253d54dd926899e9e6d7607ef137a3a1562c1 |
| SHA256 | 9740492962928aafcfc3823083ab7e1b092afdbccc830c607f01019537b80407 |
| SHA512 | 6febbe6f6feb7b4159e97bbd8398fe08144463f99a16e7d0f10e05e62d2d0b516d12775fb0999dfd1716260b0e06dcfe242fdd2ed44201c89e285b16b4c04370 |
memory/2412-63-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-64-0x00000000020A0000-0x00000000020A1000-memory.dmp
memory/2076-65-0x00000000007C0000-0x00000000007C1000-memory.dmp
memory/756-66-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-67-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-69-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-71-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-73-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-75-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-77-0x0000000000400000-0x00000000004DC000-memory.dmp
memory/2412-79-0x0000000000400000-0x00000000004DC000-memory.dmp