Analysis Overview
SHA256
4ade0105a20cc8526b2cb0a10f41d5d1b9a38ba1b0d100334a22827f5ff372b6
Threat Level: Known bad
The file ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Darkcomet family
Sets file to hidden
Executes dropped EXE
Deletes itself
Checks computer location settings
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Views/modifies file attributes
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-04-21 18:34
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-21 18:34
Reported
2024-04-21 18:37
Platform
win7-20231129-en
Max time kernel
141s
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\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
Network
Files
memory/1752-0-0x0000000000270000-0x0000000000271000-memory.dmp
memory/3056-3-0x0000000000080000-0x0000000000081000-memory.dmp
memory/1752-6-0x0000000000400000-0x00000000004B5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-21 18:34
Reported
2024-04-21 18:37
Platform
win10v2004-20240412-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\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\notepad.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-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\Documents\MSDCSC\msdcsc.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\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.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
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\ffe8ce138a60c8bed31cbbc68df42a51_JaffaCakes118.exe" +s +h
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 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| 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 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 113.77.117.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 111.210.16.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 192.179.15.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | 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 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
| US | 8.8.8.8:53 | fabhack.no-ip.org | udp |
Files
memory/4740-0-0x0000000002250000-0x0000000002251000-memory.dmp
memory/3700-3-0x0000000000450000-0x0000000000451000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | ffe8ce138a60c8bed31cbbc68df42a51 |
| SHA1 | 10f741c31f368e32098b98677020070f90e33e4f |
| SHA256 | 4ade0105a20cc8526b2cb0a10f41d5d1b9a38ba1b0d100334a22827f5ff372b6 |
| SHA512 | 94ff17a28a3ceb10330c8f4a20f7528373dfd3f8f290f66b0860205dd1add2de49bc349a440ad5abdffdac92edde2925c29469bd5c9b4040351a45afa989dc16 |
memory/3940-62-0x00000000007E0000-0x00000000007E1000-memory.dmp
memory/4092-63-0x0000000000630000-0x0000000000631000-memory.dmp
memory/4740-64-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-66-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-67-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-68-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-69-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-70-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-71-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-72-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-73-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-74-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-75-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-76-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-77-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-78-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3940-79-0x0000000000400000-0x00000000004B5000-memory.dmp