Analysis Overview
SHA256
cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b
Threat Level: Known bad
The file 102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Darkcomet family
Loads dropped DLL
Deletes itself
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 WriteProcessMemory
Suspicious use of SetWindowsHookEx
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
Modifies registry class
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-26 00:59
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-26 00:59
Reported
2024-06-26 01:02
Platform
win10v2004-20240508-en
Max time kernel
149s
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4260 set thread context of 456 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
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\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.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\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
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 |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| NL | 52.142.223.178:80 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp |
Files
memory/1604-0-0x0000000000660000-0x0000000000661000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 102d6b79c2ff2f8a1bd160b965490d9c |
| SHA1 | 8b6e1ec317f027d002ed2d0fdace097b454cb8b6 |
| SHA256 | cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b |
| SHA512 | a1fce383a3498332ad7857588f83eec4a5936646f1a7dd18c424d6ae0a1429e1f4777e33e5bcdfe0443bbd572533e4d2f90cc575df9a25ebf565c46254a15c0d |
memory/1604-60-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/4260-62-0x00000000006A0000-0x00000000006A1000-memory.dmp
memory/456-63-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/4260-64-0x0000000000400000-0x00000000004B0000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-26 00:59
Reported
2024-06-26 01:02
Platform
win7-20240419-en
Max time kernel
150s
Max time network
138s
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\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2356 set thread context of 2692 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.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\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
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 |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp | |
| FR | 88.171.241.28:1604 | tcp |
Files
memory/1876-0-0x00000000002E0000-0x00000000002E1000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 102d6b79c2ff2f8a1bd160b965490d9c |
| SHA1 | 8b6e1ec317f027d002ed2d0fdace097b454cb8b6 |
| SHA256 | cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b |
| SHA512 | a1fce383a3498332ad7857588f83eec4a5936646f1a7dd18c424d6ae0a1429e1f4777e33e5bcdfe0443bbd572533e4d2f90cc575df9a25ebf565c46254a15c0d |
memory/1876-11-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2692-13-0x0000000000400000-0x00000000004B0000-memory.dmp
memory/2356-14-0x0000000000400000-0x00000000004B0000-memory.dmp