Analysis Overview
SHA256
018556978f8a8e862bb57db11a55e0be62b424db127b66cd77451fe970b30ee0
Threat Level: Known bad
The file 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Darkcomet
Sets file to hidden
Uses the VBS compiler for execution
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
UPX packed file
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-27 16:38
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-27 16:38
Reported
2024-06-27 16:40
Platform
win7-20240611-en
Max time kernel
120s
Max time network
120s
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\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.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 |
Uses the VBS compiler for execution
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" | C:\Users\Admin\AppData\Roaming\msconfig.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\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2612 set thread context of 2476 | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Microsoft.NET\Framework\v2.0.50727 | C:\Windows\SysWOW64\attrib.exe | N/A |
| File opened for modification | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | C:\Windows\SysWOW64\attrib.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
Suspicious use of AdjustPrivilegeToken
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\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe"
C:\Users\Admin\AppData\Roaming\msconfig.exe
"C:\Users\Admin\AppData\Roaming\msconfig.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
Network
Files
memory/1572-0-0x0000000074C61000-0x0000000074C62000-memory.dmp
memory/1572-2-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/1572-1-0x0000000074C60000-0x000000007520B000-memory.dmp
\Users\Admin\AppData\Roaming\msconfig.exe
| MD5 | 16b8315c6de1994bdcbc0faf574a162b |
| SHA1 | 38c2018b835dcc8dd6e6c156f7619c8e0acc493d |
| SHA256 | 018556978f8a8e862bb57db11a55e0be62b424db127b66cd77451fe970b30ee0 |
| SHA512 | 85f5c29486979cb3480fbfa9ab302a29463b060b12dc3aa95785037cfdc2b7f917492f8a1f3a7043d80ef09dca38b908b0f4423907f31148b8c554323fdca4f2 |
memory/2612-13-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/2612-16-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/1572-15-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/2476-17-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-24-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2476-26-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-27-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2612-25-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/2476-21-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-20-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2612-19-0x0000000074C60000-0x000000007520B000-memory.dmp
memory/2476-28-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-29-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-30-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/2476-39-0x0000000000400000-0x00000000004B9000-memory.dmp
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | 34aa912defa18c2c129f1e09d75c1d7e |
| SHA1 | 9c3046324657505a30ecd9b1fdb46c05bde7d470 |
| SHA256 | 6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386 |
| SHA512 | d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-27 16:38
Reported
2024-06-27 16:41
Platform
win10v2004-20240611-en
Max time kernel
133s
Max time network
103s
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\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.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 |
Uses the VBS compiler for execution
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3024 set thread context of 3004 | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | C:\Windows\SysWOW64\attrib.exe | N/A |
| File opened for modification | C:\Windows\Microsoft.NET\Framework\v2.0.50727 | C:\Windows\SysWOW64\attrib.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\msconfig.exe | N/A |
Suspicious use of AdjustPrivilegeToken
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\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe"
C:\Users\Admin\AppData\Roaming\msconfig.exe
"C:\Users\Admin\AppData\Roaming\msconfig.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| NL | 23.62.61.155:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 155.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
Files
memory/3588-0-0x0000000074A62000-0x0000000074A63000-memory.dmp
memory/3588-1-0x0000000074A60000-0x0000000075011000-memory.dmp
memory/3588-2-0x0000000074A60000-0x0000000075011000-memory.dmp
C:\Users\Admin\AppData\Roaming\msconfig.exe
| MD5 | 16b8315c6de1994bdcbc0faf574a162b |
| SHA1 | 38c2018b835dcc8dd6e6c156f7619c8e0acc493d |
| SHA256 | 018556978f8a8e862bb57db11a55e0be62b424db127b66cd77451fe970b30ee0 |
| SHA512 | 85f5c29486979cb3480fbfa9ab302a29463b060b12dc3aa95785037cfdc2b7f917492f8a1f3a7043d80ef09dca38b908b0f4423907f31148b8c554323fdca4f2 |
memory/3024-16-0x0000000074A60000-0x0000000075011000-memory.dmp
memory/3588-15-0x0000000074A60000-0x0000000075011000-memory.dmp
memory/3024-17-0x0000000074A60000-0x0000000075011000-memory.dmp
memory/3004-20-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/3004-22-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/3004-24-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/3004-23-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/3004-19-0x0000000000400000-0x00000000004B9000-memory.dmp
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
| MD5 | d881de17aa8f2e2c08cbb7b265f928f9 |
| SHA1 | 08936aebc87decf0af6e8eada191062b5e65ac2a |
| SHA256 | b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0 |
| SHA512 | 5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34 |
memory/3004-34-0x0000000000400000-0x00000000004B9000-memory.dmp
memory/3024-39-0x0000000074A60000-0x0000000075011000-memory.dmp