Analysis Overview
SHA256
c9e44ad0ab1887def4c2fd8f9f120980ea248948466d4cf9578bf58dd7cd670c
Threat Level: Shows suspicious behavior
The file 038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
ASPack v2.12-2.42
Writes to the Master Boot Record (MBR)
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-23 22:59
Signatures
ASPack v2.12-2.42
| 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
2024-06-23 22:59
Reported
2024-06-23 23:01
Platform
win7-20240220-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\ = "loader_c 1.0 Type Library" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS\ = "0" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.key | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 840 wrote to memory of 1112 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll
Network
Files
memory/1112-0-0x0000000010000000-0x0000000010035000-memory.dmp
memory/1112-1-0x0000000000260000-0x0000000000290000-memory.dmp
memory/1112-2-0x0000000000240000-0x0000000000243000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-23 22:59
Reported
2024-06-23 23:01
Platform
win10v2004-20240508-en
Max time kernel
131s
Max time network
133s
Command Line
Signatures
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\FLAGS\ = "0" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.key | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\ = "loader_c 1.0 Type Library" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\0\win32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{13539089-270A-449C-8C6F-DEEBDA8C2A2E}\1.0\HELPDIR | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4056 wrote to memory of 2424 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4056 wrote to memory of 2424 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4056 wrote to memory of 2424 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\038f1c281f75d8b9395ee8fe498bbefc_JaffaCakes118.dll
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 --no-appcompat-clear --field-trial-handle=2860,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=3940 /prefetch:8
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 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 80.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/2424-1-0x000000001001A000-0x000000001001B000-memory.dmp
memory/2424-0-0x0000000010000000-0x0000000010035000-memory.dmp
memory/2424-2-0x0000000010000000-0x0000000010035000-memory.dmp
memory/2424-22-0x00000000026E0000-0x00000000026E1000-memory.dmp
memory/2424-21-0x00000000026F0000-0x00000000026F1000-memory.dmp
memory/2424-20-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/2424-19-0x00000000026D0000-0x00000000026D1000-memory.dmp
memory/2424-18-0x0000000002690000-0x0000000002691000-memory.dmp
memory/2424-17-0x00000000026A0000-0x00000000026A1000-memory.dmp
memory/2424-16-0x0000000002670000-0x0000000002671000-memory.dmp
memory/2424-15-0x0000000002680000-0x0000000002681000-memory.dmp
memory/2424-14-0x0000000002650000-0x0000000002651000-memory.dmp
memory/2424-13-0x0000000002660000-0x0000000002661000-memory.dmp
memory/2424-12-0x0000000000D00000-0x0000000000D01000-memory.dmp
memory/2424-11-0x0000000000D10000-0x0000000000D11000-memory.dmp
memory/2424-10-0x0000000000CD0000-0x0000000000CD1000-memory.dmp
memory/2424-9-0x0000000000CE0000-0x0000000000CE1000-memory.dmp
memory/2424-8-0x0000000000CB0000-0x0000000000CB1000-memory.dmp
memory/2424-7-0x0000000000CC0000-0x0000000000CC1000-memory.dmp
memory/2424-6-0x0000000000C90000-0x0000000000C91000-memory.dmp
memory/2424-5-0x0000000000CA0000-0x0000000000CA1000-memory.dmp
memory/2424-4-0x0000000000A20000-0x0000000000A21000-memory.dmp
memory/2424-3-0x0000000000A10000-0x0000000000A11000-memory.dmp