Analysis Overview
SHA256
898802b891c014aa807baf5b9bf85b0a7d2804b610155f7c504d19f4b3486fed
Threat Level: Likely malicious
The file 81861135130728182dab859ffa4b1e95_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Drops file in Drivers directory
Sets service image path in registry
Modifies system executable filetype association
Indicator Removal: File Deletion
Adds Run key to start application
Enumerates connected drives
UPX packed file
Unsigned PE
System Location Discovery: System Language Discovery
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-31 03:49
Signatures
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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-31 03:49
Reported
2024-10-31 03:53
Platform
win7-20240903-en
Max time kernel
150s
Max time network
121s
Command Line
Signatures
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Enumerates connected drives
Indicator Removal: File Deletion
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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Cookies\"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Application Data\Macromedia\Flash Player\"
Network
| Country | Destination | Domain | Proto |
| MY | 124.217.253.6:80 | tcp | |
| MY | 124.217.253.6:80 | tcp |
Files
memory/1908-0-0x0000000000400000-0x0000000001564000-memory.dmp
C:\Windows\SysWOW64\drivers\spools.exe
| MD5 | 4e969cd8820572e8c01de1e80e36f71e |
| SHA1 | 27bcc314c358898354aad237513b8c1cd6e16d55 |
| SHA256 | d17d114acc8a3672c1557605691a5f78b1dee42831d9e790f6606ef31b580875 |
| SHA512 | cd17c1a7cf72eb4928b1dfc31c810f03ff35c9b0773a6b3cce3ba1931d4e697a2ed15c1fe23d4d3a9358091be2072d9ce85097177a6539606b57f83b983e59af |
memory/1908-6-0x0000000000400000-0x0000000001564000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-31 03:49
Reported
2024-10-31 03:53
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
139s
Command Line
Signatures
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Modifies system executable filetype association
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Enumerates connected drives
Indicator Removal: File Deletion
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 |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*" | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1636 wrote to memory of 4532 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1636 wrote to memory of 4532 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1636 wrote to memory of 4532 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1636 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1636 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1636 wrote to memory of 736 | N/A | C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\81861135130728182dab859ffa4b1e95_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Cookies\"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c rmdir /S /Q "C:\Users\Admin\Application Data\Macromedia\Flash Player\"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| MY | 124.217.253.6:80 | tcp | |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.201.86.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 212.20.149.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
Files
memory/1636-0-0x0000000000400000-0x0000000001564000-memory.dmp
C:\Windows\SysWOW64\drivers\spools.exe
| MD5 | 787d84bc44eed3544fb4dd3d9a4264c5 |
| SHA1 | f57dda6a46232ae75d1424dec586bee308eb8c19 |
| SHA256 | 8c37bd72929becdb1f4924fc066f1d4080e99c62393e48f23d46a2b58760a349 |
| SHA512 | 06d5077ee341f2a778bf740bfbc341b1ecb08c11cf20adbcbc2ba786a8b572e2711b36b545719036e45c42e24e44c07dd29c03e4accb3a3b327f13ee0a575fe8 |
memory/1636-7-0x0000000000400000-0x0000000001564000-memory.dmp