Analysis Overview
SHA256
424b01b39ccd257fa8fdaf40ebba3b9cd499420738b7d16395d664779c6f2df5
Threat Level: Shows suspicious behavior
The file 1364c154f89e29d21b2777233cec8017_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Drops file in System32 directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Drops file in Windows directory
Access Token Manipulation: Create Process with Token
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-26 20:46
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-26 20:46
Reported
2024-06-26 20:49
Platform
win7-20240221-en
Max time kernel
149s
Max time network
119s
Command Line
Signatures
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\lua.wkl | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\lua.wkl | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\pdfshlex.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\pdfshlex.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
Access Token Manipulation: Create Process with Token
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,1292668979,71617371,-352895392" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32 "C:\Windows\pdfshlex.dll",_RunAs@16
Network
Files
memory/280-0-0x0000000010000000-0x0000000010056000-memory.dmp
memory/280-1-0x0000000010000000-0x0000000010056000-memory.dmp
memory/280-3-0x0000000010024000-0x0000000010025000-memory.dmp
memory/280-2-0x0000000010000000-0x0000000010056000-memory.dmp
C:\Windows\pdfshlex.dll
| MD5 | 1364c154f89e29d21b2777233cec8017 |
| SHA1 | 03de4db2a7f0b7fff31f2cfbde818b5bb59e8c1f |
| SHA256 | 424b01b39ccd257fa8fdaf40ebba3b9cd499420738b7d16395d664779c6f2df5 |
| SHA512 | edf98059d2d696e315bd144d1c8ac2fa76e44ca3b88cd781ff75dbd1ba546cd98dd047040c457137e01993e1ff12d24c7ec1aa07efcfb6c68ef994474ed16d6f |
memory/2052-7-0x0000000010000000-0x0000000010056000-memory.dmp
memory/2052-9-0x0000000010000000-0x0000000010056000-memory.dmp
memory/280-8-0x0000000010000000-0x0000000010056000-memory.dmp
memory/2052-10-0x0000000010000000-0x0000000010056000-memory.dmp
memory/2052-15-0x0000000010000000-0x0000000010056000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-26 20:46
Reported
2024-06-26 20:49
Platform
win10v2004-20240611-en
Max time kernel
150s
Max time network
127s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\lua.wkl | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\lua.wkl | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\pdfshlex.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\pdfshlex.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
Access Token Manipulation: Create Process with Token
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,1292668979,71617371,-352895392" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 232 wrote to memory of 4888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 232 wrote to memory of 4888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 232 wrote to memory of 4888 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4888 wrote to memory of 3780 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4888 wrote to memory of 3780 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4888 wrote to memory of 3780 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1364c154f89e29d21b2777233cec8017_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32 "C:\Windows\pdfshlex.dll",_RunAs@16
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 --field-trial-handle=3864,i,5229431749694857451,16836185654682871752,262144 --variations-seed-version --mojo-platform-channel-handle=4264 /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| BE | 88.221.83.241:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.21.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
Files
memory/4888-0-0x0000000010000000-0x0000000010056000-memory.dmp
C:\Windows\pdfshlex.dll
| MD5 | 1364c154f89e29d21b2777233cec8017 |
| SHA1 | 03de4db2a7f0b7fff31f2cfbde818b5bb59e8c1f |
| SHA256 | 424b01b39ccd257fa8fdaf40ebba3b9cd499420738b7d16395d664779c6f2df5 |
| SHA512 | edf98059d2d696e315bd144d1c8ac2fa76e44ca3b88cd781ff75dbd1ba546cd98dd047040c457137e01993e1ff12d24c7ec1aa07efcfb6c68ef994474ed16d6f |
memory/3780-5-0x0000000010000000-0x0000000010056000-memory.dmp
memory/4888-6-0x0000000010000000-0x0000000010056000-memory.dmp
memory/3780-7-0x0000000010000000-0x0000000010056000-memory.dmp