Analysis Overview
SHA256
6791affc48329b51d0ea44f932f4e7c4de0ddcf3e4be972f6f69faa0419c57dc
Threat Level: Known bad
The file b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Drops desktop.ini file(s)
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
NTFS ADS
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-17 09:46
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-17 09:46
Reported
2024-06-17 09:49
Platform
win7-20231129-en
Max time kernel
150s
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\\QRAqgJowQC7T\\" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.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\updates = "C:\\Users\\Admin\\AppData\\Local\\Temp\\QRAqgJowQC7T\\" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Enumerates physical storage devices
NTFS ADS
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.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\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"cmd.exe"
C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp | |
| NL | 185.142.239.190:5655 | tcp |
Files
memory/2004-0-0x0000000074D31000-0x0000000074D32000-memory.dmp
memory/2004-1-0x0000000074D30000-0x00000000752DB000-memory.dmp
memory/2004-2-0x0000000074D30000-0x00000000752DB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.jpg
| MD5 | b7f83d777901bf5ef4ef43390451cc96 |
| SHA1 | 0281c8ac014d19145b21730c8972d73fef62b7b1 |
| SHA256 | 6791affc48329b51d0ea44f932f4e7c4de0ddcf3e4be972f6f69faa0419c57dc |
| SHA512 | 4ad7e180c4d32ffc20e2d98be41c9aefcffa5cd13b573f1cd2f93bb353f86045c2e177a322a14d3299055214800304bcaded589843155fb2cabf3be18b240b0f |
\Users\Admin\AppData\Local\Temp\tmp.exe
| MD5 | 405cce49ffe4ce262b709887e4c285a5 |
| SHA1 | 5d9a97e8b94e27e2586144a7d69a87f5cc8321b4 |
| SHA256 | ae429d9947d29afaae8c8256ad8ddd6339337102881876f38572dff3f132cbd5 |
| SHA512 | ee7c62b89f5ec8bb7d3da5876b8849f87b1342b354d55419cf9cdc073ec54744ce25a880dcddc27e13eb11b02b2be89155f22317774fcb56900d24d757783dd7 |
memory/2252-17-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/2640-44-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2640-19-0x00000000000C0000-0x00000000000C1000-memory.dmp
memory/2004-45-0x0000000074D30000-0x00000000752DB000-memory.dmp
memory/2004-46-0x0000000074D30000-0x00000000752DB000-memory.dmp
memory/2252-47-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2252-49-0x0000000000400000-0x00000000004DD000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-17 09:46
Reported
2024-06-17 09:49
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
96s
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\\QRAqgJowQC7T\\" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\updates = "C:\\Users\\Admin\\AppData\\Local\\Temp\\QRAqgJowQC7T\\" | C:\Users\Admin\AppData\Local\Temp\tmp.exe | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\assembly | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| File created | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\assembly\Desktop.ini | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
NTFS ADS
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.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\tmp.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b7f83d777901bf5ef4ef43390451cc96_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"cmd.exe"
C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f
C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 80.14.97.104.in-addr.arpa | udp |
| NL | 185.142.239.190:5655 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.251.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/1688-0-0x00000000750E2000-0x00000000750E3000-memory.dmp
memory/1688-1-0x00000000750E0000-0x0000000075691000-memory.dmp
memory/1688-2-0x00000000750E0000-0x0000000075691000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.jpg
| MD5 | b7f83d777901bf5ef4ef43390451cc96 |
| SHA1 | 0281c8ac014d19145b21730c8972d73fef62b7b1 |
| SHA256 | 6791affc48329b51d0ea44f932f4e7c4de0ddcf3e4be972f6f69faa0419c57dc |
| SHA512 | 4ad7e180c4d32ffc20e2d98be41c9aefcffa5cd13b573f1cd2f93bb353f86045c2e177a322a14d3299055214800304bcaded589843155fb2cabf3be18b240b0f |
C:\Users\Admin\AppData\Local\Temp\tmp.exe
| MD5 | 405cce49ffe4ce262b709887e4c285a5 |
| SHA1 | 5d9a97e8b94e27e2586144a7d69a87f5cc8321b4 |
| SHA256 | ae429d9947d29afaae8c8256ad8ddd6339337102881876f38572dff3f132cbd5 |
| SHA512 | ee7c62b89f5ec8bb7d3da5876b8849f87b1342b354d55419cf9cdc073ec54744ce25a880dcddc27e13eb11b02b2be89155f22317774fcb56900d24d757783dd7 |
memory/2040-21-0x0000000002520000-0x0000000002521000-memory.dmp
memory/2260-22-0x0000000000A90000-0x0000000000A91000-memory.dmp
memory/1688-23-0x00000000750E2000-0x00000000750E3000-memory.dmp
memory/1688-24-0x00000000750E0000-0x0000000075691000-memory.dmp
memory/1688-26-0x00000000750E0000-0x0000000075691000-memory.dmp
memory/2040-27-0x0000000000400000-0x00000000004DD000-memory.dmp
memory/2040-29-0x0000000000400000-0x00000000004DD000-memory.dmp