Analysis Overview
SHA256
47ed5cd03fc6c390a69d18d68b0a8050380c6a33291e62d56d9e5843bf81791f
Threat Level: Known bad
The file b6d5270e6708908ff56aa91b1819be27_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Modifies WinLogon for persistence
Darkcomet
Sets file to hidden
Checks computer location settings
Deletes itself
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Suspicious use of SetWindowsHookEx
Views/modifies file attributes
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-17 04:47
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-17 04:47
Reported
2024-06-17 04:49
Platform
win7-20240611-en
Max time kernel
149s
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\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_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 |
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\AppData\Local\Temp\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\msdcsc.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\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\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_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\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Users\Admin\AppData\Local\Temp\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp | |
| UA | 194.44.227.222:1604 | tcp |
Files
memory/288-0-0x0000000000270000-0x0000000000271000-memory.dmp
memory/2596-18-0x0000000000150000-0x0000000000151000-memory.dmp
memory/2596-4-0x0000000000080000-0x0000000000081000-memory.dmp
\Users\Admin\AppData\Local\Temp\msdcsc.exe
| MD5 | b6d5270e6708908ff56aa91b1819be27 |
| SHA1 | 2853224a79305568447ac9f90dc487db38072298 |
| SHA256 | 47ed5cd03fc6c390a69d18d68b0a8050380c6a33291e62d56d9e5843bf81791f |
| SHA512 | 44163845b0468f84fc83c7ee158c30060e4a614cd8cd756c6942c8406f186fd367830626066437cd38d0058ef3ac2317941ebd691a10362cefedfae7488809b0 |
memory/2540-66-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/288-67-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2664-69-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2664-71-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2664-73-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2664-75-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 04:47
Reported
2024-06-17 04:49
Platform
win10v2004-20240508-en
Max time kernel
149s
Max time network
149s
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\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_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\AppData\Local\Temp\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\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\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\msdcsc.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\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\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b6d5270e6708908ff56aa91b1819be27_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\b6d5270e6708908ff56aa91b1819be27_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Users\Admin\AppData\Local\Temp\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\msdcsc.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
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 --no-appcompat-clear --field-trial-handle=1748,i,4686244434963378549,11462511444150484980,262144 --variations-seed-version --mojo-platform-channel-handle=4148 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| UA | 194.44.227.222:1604 | tcp | |
| NL | 52.142.223.178:80 | tcp |
Files
memory/2008-0-0x0000000002370000-0x0000000002371000-memory.dmp
memory/1048-4-0x0000000000F40000-0x0000000000F41000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\msdcsc.exe
| MD5 | b6d5270e6708908ff56aa91b1819be27 |
| SHA1 | 2853224a79305568447ac9f90dc487db38072298 |
| SHA256 | 47ed5cd03fc6c390a69d18d68b0a8050380c6a33291e62d56d9e5843bf81791f |
| SHA512 | 44163845b0468f84fc83c7ee158c30060e4a614cd8cd756c6942c8406f186fd367830626066437cd38d0058ef3ac2317941ebd691a10362cefedfae7488809b0 |
memory/4944-63-0x0000000001220000-0x0000000001221000-memory.dmp
memory/2008-64-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4860-66-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/4860-68-0x0000000000400000-0x00000000004B2000-memory.dmp