Analysis Overview
SHA256
f876c0b4cde4cf27754c95b605b62e1952f7c0416ac38a08db6178a895acb4c1
Threat Level: Known bad
The file 7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Writes to the Master Boot Record (MBR)
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-01 07:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-01 07:22
Reported
2024-08-01 07:25
Platform
win7-20240708-en
Max time kernel
150s
Max time network
122s
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\7fa2962d464a1e6aaff03c09cf7e538b_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\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\MSDCSC\msdcsc.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
| File opened for modification | \??\PhysicalDrive0 | C:\MSDCSC\msdcsc.exe | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\notepad.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| 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:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.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 WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 220
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\explorer.exe
"C:\Windows\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
Files
memory/2520-1-0x0000000000520000-0x0000000000563000-memory.dmp
memory/2520-0-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2520-7-0x0000000001E80000-0x0000000001E81000-memory.dmp
memory/2520-6-0x0000000000620000-0x0000000000621000-memory.dmp
memory/2520-5-0x00000000005E0000-0x00000000005E1000-memory.dmp
memory/2520-4-0x00000000003A0000-0x00000000003A1000-memory.dmp
memory/2520-3-0x00000000003B0000-0x00000000003B1000-memory.dmp
memory/2520-2-0x0000000000600000-0x0000000000601000-memory.dmp
memory/2520-8-0x0000000001F10000-0x0000000001F11000-memory.dmp
memory/1924-25-0x0000000000180000-0x0000000000181000-memory.dmp
memory/1924-11-0x0000000000080000-0x0000000000081000-memory.dmp
C:\MSDCSC\msdcsc.exe
| MD5 | 7fa2962d464a1e6aaff03c09cf7e538b |
| SHA1 | 53ed1256ee387bd8fd015bba0bdc79d754d22c7c |
| SHA256 | f876c0b4cde4cf27754c95b605b62e1952f7c0416ac38a08db6178a895acb4c1 |
| SHA512 | 99f3f98690da192a7f495236501a40454fcf59bf62c5694f0208b5114886de50ccd23c2d8ad8911a41a670c39369585aa99140269a1534dbea0db4d6eaf6d2b9 |
memory/2520-36-0x0000000000520000-0x0000000000563000-memory.dmp
memory/2804-38-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-37-0x0000000000270000-0x00000000002B3000-memory.dmp
memory/2520-35-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-40-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-41-0x0000000000270000-0x00000000002B3000-memory.dmp
memory/2804-42-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-43-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-44-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-45-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-46-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-47-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-48-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-49-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-50-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-51-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-52-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-53-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-54-0x0000000000400000-0x0000000000520000-memory.dmp
memory/2804-55-0x0000000000400000-0x0000000000520000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-01 07:22
Reported
2024-08-01 07:25
Platform
win10v2004-20240730-en
Max time kernel
150s
Max time network
151s
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\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-195445723-368091294-1661186673-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-195445723-368091294-1661186673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-195445723-368091294-1661186673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-195445723-368091294-1661186673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1468 set thread context of 3540 | N/A | C:\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\notepad.exe |
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\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
| 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:\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
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\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7fa2962d464a1e6aaff03c09cf7e538b_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1860 -ip 1860
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 424
C:\MSDCSC\msdcsc.exe
"C:\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 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| IE | 52.111.236.23:443 | tcp | |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | saw-88.no-ip.biz | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/3760-0-0x0000000000400000-0x0000000000520000-memory.dmp
memory/3760-1-0x00000000022B0000-0x00000000022F3000-memory.dmp
memory/3760-2-0x0000000002480000-0x0000000002481000-memory.dmp
memory/3760-7-0x00000000024A0000-0x00000000024A1000-memory.dmp
memory/3760-6-0x00000000024D0000-0x00000000024D1000-memory.dmp
memory/3760-5-0x0000000002450000-0x0000000002451000-memory.dmp
memory/3760-4-0x0000000002260000-0x0000000002261000-memory.dmp
memory/3760-3-0x0000000002280000-0x0000000002281000-memory.dmp
memory/3760-8-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/1860-11-0x0000000001250000-0x0000000001251000-memory.dmp
C:\MSDCSC\msdcsc.exe
| MD5 | 7fa2962d464a1e6aaff03c09cf7e538b |
| SHA1 | 53ed1256ee387bd8fd015bba0bdc79d754d22c7c |
| SHA256 | f876c0b4cde4cf27754c95b605b62e1952f7c0416ac38a08db6178a895acb4c1 |
| SHA512 | 99f3f98690da192a7f495236501a40454fcf59bf62c5694f0208b5114886de50ccd23c2d8ad8911a41a670c39369585aa99140269a1534dbea0db4d6eaf6d2b9 |
memory/1468-70-0x0000000000400000-0x0000000000520000-memory.dmp
memory/1468-72-0x00000000007B0000-0x00000000007F3000-memory.dmp
memory/3760-74-0x00000000022B0000-0x00000000022F3000-memory.dmp
memory/3760-71-0x0000000000400000-0x0000000000520000-memory.dmp
memory/1468-76-0x0000000002B40000-0x0000000002B41000-memory.dmp
memory/3540-77-0x0000000000400000-0x0000000000520000-memory.dmp
memory/1468-79-0x00000000007B0000-0x00000000007F3000-memory.dmp
memory/1468-80-0x0000000000400000-0x0000000000520000-memory.dmp