Analysis Overview
SHA256
c7a92e58954faf2a030b8be24bbe012e7fa95f8bf32d3e9cb04107208d8ff80d
Threat Level: Known bad
The file 1455792a7bf29cc929014c720d999f90_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Darkcomet family
Modifies WinLogon for persistence
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Runs ping.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-27 02:20
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-27 02:20
Reported
2024-06-27 02:22
Platform
win7-20240221-en
Max time kernel
122s
Max time network
123s
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\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
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\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2612 set thread context of 2632 | 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 WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_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\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe"
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"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
Network
Files
memory/1888-0-0x00000000003E0000-0x00000000003E1000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 1455792a7bf29cc929014c720d999f90 |
| SHA1 | 87b9a5187ed8684bcba977cb250d8fbdb5bd331f |
| SHA256 | c7a92e58954faf2a030b8be24bbe012e7fa95f8bf32d3e9cb04107208d8ff80d |
| SHA512 | 6bdc25f97e3bcb54fe613e3dc51d4fef999677f95999e3d3d33fc25484befd6cc5922570dd91e195ae7c867f1ca8d15554cafe0c5f5ef2820b5d8036978e0fb0 |
memory/1888-11-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2612-15-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2632-14-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/2612-12-0x0000000000260000-0x0000000000261000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-27 02:20
Reported
2024-06-27 02:22
Platform
win10v2004-20240611-en
Max time kernel
150s
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\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Disables Task Manager via registry modification
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_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-1-5-21-3665033694-1447845302-680750983-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe | N/A |
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:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1064,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=1444 /prefetch:8
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\1455792a7bf29cc929014c720d999f90_JaffaCakes118.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | 31.121.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
| US | 8.8.8.8:53 | mathiasrats1.no-ip.org | udp |
Files
memory/8-0-0x0000000002280000-0x0000000002281000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 1455792a7bf29cc929014c720d999f90 |
| SHA1 | 87b9a5187ed8684bcba977cb250d8fbdb5bd331f |
| SHA256 | c7a92e58954faf2a030b8be24bbe012e7fa95f8bf32d3e9cb04107208d8ff80d |
| SHA512 | 6bdc25f97e3bcb54fe613e3dc51d4fef999677f95999e3d3d33fc25484befd6cc5922570dd91e195ae7c867f1ca8d15554cafe0c5f5ef2820b5d8036978e0fb0 |
memory/8-13-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-14-0x0000000002090000-0x0000000002091000-memory.dmp
memory/3716-15-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-16-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-17-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-18-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-19-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-20-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-21-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-22-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-23-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-24-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-25-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-26-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-27-0x0000000000400000-0x00000000004C8000-memory.dmp
memory/3716-28-0x0000000000400000-0x00000000004C8000-memory.dmp