Analysis Overview
SHA256
eacf46e22b979eceb17b7d63ade9fbaae70a7aa10346cf7bf0bf0cd374c53f1a
Threat Level: Known bad
The file 819df246b27da35f467f59c80f167bc9_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet family
Darkcomet
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
UPX packed file
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-01 18:59
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
2024-08-01 18:59
Reported
2024-08-01 19:02
Platform
win7-20240705-en
Max time kernel
150s
Max time network
124s
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:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_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 |
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\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2840 set thread context of 2824 | N/A | C:\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\notepad.exe | N/A |
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\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe"
C:\MSDCSC\msdcsc.exe
"C:\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
Files
memory/2772-0-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/2772-1-0x0000000000240000-0x0000000000241000-memory.dmp
\MSDCSC\msdcsc.exe
| MD5 | 819df246b27da35f467f59c80f167bc9 |
| SHA1 | 1e37271655b1e9499de89b2e836138151e1dd7f7 |
| SHA256 | eacf46e22b979eceb17b7d63ade9fbaae70a7aa10346cf7bf0bf0cd374c53f1a |
| SHA512 | b04ef5971b941df40c3427a6a39774c9f0f993b6d2b4c858bd1ffcaeeb5570fd1491236af52ac437902de0e451a71230b0e3aed7f4a0d98e818e28f7e67a02a1 |
memory/2840-15-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/2772-14-0x00000000040C0000-0x00000000041AB000-memory.dmp
memory/2772-13-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/2840-16-0x0000000000280000-0x0000000000281000-memory.dmp
memory/2824-18-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/2840-20-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/1768-48-0x0000000000220000-0x0000000000221000-memory.dmp
memory/1768-21-0x0000000000080000-0x0000000000081000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-01 18:59
Reported
2024-08-01 19:02
Platform
win10v2004-20240730-en
Max time kernel
150s
Max time network
149s
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:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2927035347-1736702767-189270196-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2927035347-1736702767-189270196-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1776 set thread context of 4984 | N/A | C:\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\notepad.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
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\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe"
C:\MSDCSC\msdcsc.exe
"C:\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | iwinuwin.no-ip.biz | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/4196-0-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4196-1-0x0000000000B00000-0x0000000000B01000-memory.dmp
C:\MSDCSC\msdcsc.exe
| MD5 | 819df246b27da35f467f59c80f167bc9 |
| SHA1 | 1e37271655b1e9499de89b2e836138151e1dd7f7 |
| SHA256 | eacf46e22b979eceb17b7d63ade9fbaae70a7aa10346cf7bf0bf0cd374c53f1a |
| SHA512 | b04ef5971b941df40c3427a6a39774c9f0f993b6d2b4c858bd1ffcaeeb5570fd1491236af52ac437902de0e451a71230b0e3aed7f4a0d98e818e28f7e67a02a1 |
memory/4196-15-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/1776-16-0x00000000008D0000-0x00000000008D1000-memory.dmp
memory/1776-19-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/4984-17-0x0000000000400000-0x00000000004EB000-memory.dmp
memory/224-20-0x0000000000560000-0x0000000000561000-memory.dmp