Analysis Overview
SHA256
4b8bb58350588bf17a6c8bf0b59b4114dae7edb100cbdf0efffa536eae118b04
Threat Level: Likely malicious
The file 01a396b46a9f2dd4f7543e304c854a36_JaffaCakes118 was found to be: Likely malicious.
Malicious Activity Summary
Event Triggered Execution: AppInit DLLs
Loads dropped DLL
Installs/modifies Browser Helper Object
Drops file in System32 directory
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-22 10:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-22 10:25
Reported
2024-06-22 10:28
Platform
win7-20231129-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2548 wrote to memory of 2852 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\01a396b46a9f2dd4f7543e304c854a36_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\01a396b46a9f2dd4f7543e304c854a36_JaffaCakes118.dll,#1
Network
Files
memory/2852-0-0x0000000010000000-0x000000001003F000-memory.dmp
memory/2852-1-0x0000000010000000-0x000000001003F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-22 10:25
Reported
2024-06-22 10:28
Platform
win10v2004-20240226-en
Max time kernel
142s
Max time network
158s
Command Line
Signatures
Event Triggered Execution: AppInit DLLs
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{48f911ec-bddb-4b20-a655-e4103ba8e06b} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{48f911ec-bddb-4b20-a655-e4103ba8e06b}\ = "{b60e8ab3-014e-556a-02b4-bddbce119f84}" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\uqcgdg.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\uqcgdg.dll | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48f911ec-bddb-4b20-a655-e4103ba8e06b}\InprocServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48f911ec-bddb-4b20-a655-e4103ba8e06b}\InprocServer32\ThreadingModel = "free" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Programmable | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\ProgID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\Implemented Categories | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\TypeLib | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Programmable | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Version | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\InprocServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48f911ec-bddb-4b20-a655-e4103ba8e06b} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\VersionIndependentProgID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\TypeLib | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Implemented Categories\{59FB2056-D625-48D0-A944-1A85B5AB2640} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C}\InprocServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\VersionIndependentProgID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\ProgID | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}\Implemented Categories | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{48f911ec-bddb-4b20-a655-e4103ba8e06b}\InprocServer32\ = "C:\\Windows\\SysWow64\\uqcgdg.dll" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4836 wrote to memory of 4012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4836 wrote to memory of 4012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4836 wrote to memory of 4012 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4012 wrote to memory of 4572 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4012 wrote to memory of 4572 | N/A | C:\Windows\SysWOW64\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4012 wrote to memory of 4572 | 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\01a396b46a9f2dd4f7543e304c854a36_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\01a396b46a9f2dd4f7543e304c854a36_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Windows\system32\uqcgdg.dll",i
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 --mojo-platform-channel-handle=4012 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.15.31.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.200.42:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 42.200.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.173.189.20.in-addr.arpa | udp |
Files
memory/4012-0-0x0000000010000000-0x000000001003F000-memory.dmp
memory/4012-1-0x0000000010000000-0x000000001003A000-memory.dmp
C:\Windows\SysWOW64\uqcgdg.dll
| MD5 | 01a396b46a9f2dd4f7543e304c854a36 |
| SHA1 | ede26c28ff12c2344a5b4c4daf25a92168759843 |
| SHA256 | 4b8bb58350588bf17a6c8bf0b59b4114dae7edb100cbdf0efffa536eae118b04 |
| SHA512 | 03dfbded702a48abe20f44f9d51fa0394502674169716960f566a60e5a12f531f5534456e66859795ea5e174a7b87bc8fff76f08fd7233820a2982a8c6545cb7 |
memory/4572-5-0x0000000010000000-0x000000001003F000-memory.dmp
memory/4572-6-0x0000000010000000-0x000000001003F000-memory.dmp
memory/4012-7-0x0000000010000000-0x000000001003F000-memory.dmp
memory/4012-8-0x0000000010000000-0x000000001003A000-memory.dmp
memory/4572-9-0x0000000010000000-0x000000001003F000-memory.dmp