Analysis Overview
SHA256
2e7e6e2f4dfb425726c2c3a9712e3b4a37ff986181abc29c22d638bbd7b2a6fb
Threat Level: Known bad
The file 4d254669a3288a023310caae738470c8_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Windows security bypass
Modifies security service
Darkcomet
Modifies WinLogon for persistence
UPX packed file
Checks computer location settings
Windows security modification
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious use of SetWindowsHookEx
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-16 21:41
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
2024-05-16 21:41
Reported
2024-05-16 21:44
Platform
win7-20240508-en
Max time kernel
148s
Max time network
145s
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\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.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\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_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 |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | 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-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
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
| Description | Indicator | Process | Target |
| PID 1616 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 1616 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 1616 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 1616 wrote to memory of 2580 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp |
Files
memory/1616-0-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/1616-1-0x0000000000260000-0x0000000000261000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 4d254669a3288a023310caae738470c8 |
| SHA1 | 5ed0204f0ee83c1129119de8538c28131cb11d4c |
| SHA256 | 2e7e6e2f4dfb425726c2c3a9712e3b4a37ff986181abc29c22d638bbd7b2a6fb |
| SHA512 | c285948dd5148de045e695903f36fc4ca894ca4dfedb1d49ee322c8acc90729238b69fb5b4f08124bda7bf709dd4f1fc4d2390aff7ddab6193ec4ec87cfcfaf6 |
memory/1616-12-0x00000000041A0000-0x0000000004257000-memory.dmp
memory/1616-11-0x00000000041A0000-0x0000000004257000-memory.dmp
memory/1616-15-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2580-16-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/2580-18-0x0000000000400000-0x00000000004B7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-16 21:41
Reported
2024-05-16 21:44
Platform
win10v2004-20240508-en
Max time kernel
148s
Max time network
152s
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\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_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 |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | 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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_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\4d254669a3288a023310caae738470c8_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
| Description | Indicator | Process | Target |
| PID 4600 wrote to memory of 4080 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 4600 wrote to memory of 4080 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 4600 wrote to memory of 4080 | N/A | C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4d254669a3288a023310caae738470c8_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 91.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | 88.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | 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 |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| RU | 188.0.213.201:1604 | tcp | |
| RU | 188.0.213.201:1604 | tcp | |
| US | 8.8.8.8:53 | 12.173.189.20.in-addr.arpa | udp |
Files
memory/4600-0-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4600-1-0x0000000000C40000-0x0000000000C41000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 4d254669a3288a023310caae738470c8 |
| SHA1 | 5ed0204f0ee83c1129119de8538c28131cb11d4c |
| SHA256 | 2e7e6e2f4dfb425726c2c3a9712e3b4a37ff986181abc29c22d638bbd7b2a6fb |
| SHA512 | c285948dd5148de045e695903f36fc4ca894ca4dfedb1d49ee322c8acc90729238b69fb5b4f08124bda7bf709dd4f1fc4d2390aff7ddab6193ec4ec87cfcfaf6 |
memory/4080-61-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4080-63-0x00000000023C0000-0x00000000023C1000-memory.dmp
memory/4600-64-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4080-65-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4080-67-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4080-69-0x0000000000400000-0x00000000004B7000-memory.dmp
memory/4080-77-0x0000000000400000-0x00000000004B7000-memory.dmp