Analysis Overview
SHA256
ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e
Threat Level: Known bad
The file ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e was found to be: Known bad.
Malicious Activity Summary
Darkcomet
UPX dump on OEP (original entry point)
UPX dump on OEP (original entry point)
Executes dropped EXE
Loads dropped DLL
UPX packed file
Checks BIOS information in registry
Checks computer location settings
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Suspicious use of SetWindowsHookEx
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-27 01:20
Signatures
UPX dump on OEP (original entry point)
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-27 01:20
Reported
2024-06-27 01:23
Platform
win7-20240611-en
Max time kernel
149s
Max time network
122s
Command Line
Signatures
Darkcomet
UPX dump on OEP (original entry point)
| 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 |
| 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 |
| 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 |
| 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 |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Loads dropped DLL
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 |
| 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 |
| 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 |
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2612 set thread context of 2920 | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | C:\Users\Admin\AppData\Roaming\mcsft.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Roaming\mcsft.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\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe
"C:\Users\Admin\AppData\Local\Temp\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\USrMk.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
C:\Users\Admin\AppData\Roaming\mcsft.exe
"C:\Users\Admin\AppData\Roaming\mcsft.exe"
C:\Users\Admin\AppData\Roaming\mcsft.exe
C:\Users\Admin\AppData\Roaming\mcsft.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
Files
memory/2192-0-0x0000000000400000-0x00000000007C8000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\USrMk.bat
| MD5 | a5feca573884d76f559b996d45e8ad9a |
| SHA1 | 0e81a993f3af4e31d60653dc2513186f0495f1c8 |
| SHA256 | c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f |
| SHA512 | a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda |
C:\Users\Admin\AppData\Roaming\mcsft.exe
| MD5 | 8638f0d1eecc2089a5cf465dedd30925 |
| SHA1 | f1263030ca84e9c8bd661712f2772071c9660007 |
| SHA256 | 289fc5dc827d8e1876f31bb58a67abf0efaad32e70178f31baeb930c65e9b485 |
| SHA512 | abcc3fed2b0b1e6bc56c8d90f40fc0371c48248b66049baea50de1762fa2468d1d4ef25b0ba1951ef4be3ac5910982a46c97607906d1701e5cdd1b9c71052f15 |
memory/2192-42-0x0000000003270000-0x0000000003638000-memory.dmp
memory/2192-43-0x0000000003270000-0x0000000003638000-memory.dmp
memory/2192-44-0x0000000003270000-0x0000000003638000-memory.dmp
memory/2192-47-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/2612-52-0x0000000002C00000-0x0000000002FC8000-memory.dmp
memory/2920-56-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2612-58-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/2920-53-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-59-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-61-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-60-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-62-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-64-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-63-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-65-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-66-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-67-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-68-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-69-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-70-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-71-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-72-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-73-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-74-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-75-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-76-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-77-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-78-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-79-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/2920-80-0x0000000000400000-0x00000000004B5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-27 01:20
Reported
2024-06-27 01:23
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
152s
Command Line
Signatures
Darkcomet
UPX dump on OEP (original entry point)
| 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 |
| 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 |
| 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 |
| 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 |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.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 |
| 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 |
| 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 |
| 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3840 set thread context of 1672 | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | C:\Users\Admin\AppData\Roaming\mcsft.exe |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Roaming\mcsft.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\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\mcsft.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe
"C:\Users\Admin\AppData\Local\Temp\ead5b40f50442f6a9a9360192332535e4b2bd1507005e24d78ff3e354210c00e.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\PKJTS.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
C:\Users\Admin\AppData\Roaming\mcsft.exe
"C:\Users\Admin\AppData\Roaming\mcsft.exe"
C:\Users\Admin\AppData\Roaming\mcsft.exe
C:\Users\Admin\AppData\Roaming\mcsft.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
| US | 8.8.8.8:53 | letsgoboom.no-ip.info | udp |
Files
memory/2796-0-0x0000000000400000-0x00000000007C8000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\PKJTS.txt
| MD5 | a5feca573884d76f559b996d45e8ad9a |
| SHA1 | 0e81a993f3af4e31d60653dc2513186f0495f1c8 |
| SHA256 | c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f |
| SHA512 | a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda |
C:\Users\Admin\AppData\Roaming\mcsft.txt
| MD5 | 1d3b573c49df666e3a2c92e44c634b80 |
| SHA1 | d68b3a6d969a65d08d2ed151caf638804e85c1a4 |
| SHA256 | 692337ba1866b695fee4edd102f3561a1e553092650fe962f5db6665281421c8 |
| SHA512 | 28a5ad1f71fadb63e118f1b952a5fc56e34ac123e10b56d95a8beb260a1c1f64f2527a4096497a67eb2ab8a8b6cb7c0cc91c281f2c25960e1ab3e23f4e01033d |
memory/2796-29-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/3840-30-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/1672-33-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-36-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/3840-39-0x0000000000400000-0x00000000007C8000-memory.dmp
memory/1672-38-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-40-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-41-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-45-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-44-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-43-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-42-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-46-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-47-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-48-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-49-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-50-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-51-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-52-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-53-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-54-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-55-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-56-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-57-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-58-0x0000000000400000-0x00000000004B5000-memory.dmp
memory/1672-59-0x0000000000400000-0x00000000004B5000-memory.dmp