Analysis Overview
SHA256
57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b
Threat Level: Known bad
The file fe59b3e207af9fe2969ce96f79358761_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
Deletes itself
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-04-21 03:44
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 03:44
Reported
2024-04-21 03:46
Platform
win7-20240221-en
Max time kernel
149s
Max time network
150s
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\fe59b3e207af9fe2969ce96f79358761_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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\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
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
Processes
C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp | |
| EG | 41.68.138.235:1604 | tcp |
Files
memory/2320-0-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2028-4-0x0000000000010000-0x0000000000011000-memory.dmp
memory/2028-25-0x0000000000290000-0x0000000000291000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | fe59b3e207af9fe2969ce96f79358761 |
| SHA1 | dfa507906ddbd3497cf2584b79f4b7672303e710 |
| SHA256 | 57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b |
| SHA512 | f7f3fed145adbebd502e46e75db040ee878b334019c5594ef135707b2b9a8b6fb252fe2a6d9856456a1285e740b56d5eaf7b2d5888f4a3a4a9525f6e30e8d27f |
memory/2616-34-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2320-35-0x0000000000400000-0x00000000004CD000-memory.dmp
memory/2616-37-0x0000000000400000-0x00000000004CD000-memory.dmp
memory/2616-39-0x0000000000400000-0x00000000004CD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-21 03:44
Reported
2024-04-21 03:46
Platform
win10v2004-20240412-en
Max time kernel
150s
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\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_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-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\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\fe59b3e207af9fe2969ce96f79358761_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
Processes
C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
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 | 73.159.190.20.in-addr.arpa | udp |
| EG | 41.68.138.235:1604 | tcp | |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 156.33.209.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.173.246.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 49.15.97.104.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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |
| IE | 2.18.24.18:80 | tcp |
Files
memory/4952-0-0x0000000002280000-0x0000000002281000-memory.dmp
memory/4428-4-0x00000000005B0000-0x00000000005B1000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | fe59b3e207af9fe2969ce96f79358761 |
| SHA1 | dfa507906ddbd3497cf2584b79f4b7672303e710 |
| SHA256 | 57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b |
| SHA512 | f7f3fed145adbebd502e46e75db040ee878b334019c5594ef135707b2b9a8b6fb252fe2a6d9856456a1285e740b56d5eaf7b2d5888f4a3a4a9525f6e30e8d27f |
memory/3600-63-0x00000000021E0000-0x00000000021E1000-memory.dmp
memory/4952-64-0x0000000000400000-0x00000000004CD000-memory.dmp
memory/3600-66-0x0000000000400000-0x00000000004CD000-memory.dmp
memory/3600-68-0x00000000021E0000-0x00000000021E1000-memory.dmp
memory/3600-69-0x0000000000400000-0x00000000004CD000-memory.dmp