Analysis
- max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
04/08/2026, 12:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
PdFcOrE8.dll
Resource
win10v2004-20260513-en
windows10-2004-x64
3 signatures
150 seconds
Behavioral task
behavioral2
Sample
PdFcOrE8.dll
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
3 signatures
150 seconds
Behavioral task
behavioral3
Sample
VATN0.20260728115218.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
15 signatures
150 seconds
Behavioral task
behavioral4
Sample
VATN0.20260728115218.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
15 signatures
150 seconds
General
- Target PdFcOrE8.dll
- Size 5.7MB
- Sample260804-pdhhdsag49
- SHA256 5dd8a6058a184c8bb8fd2d8a5b053d58574944c935a4c11ebb8ca520eaae6f35
- MD5 87b4c5f24910e5e9df79ca857dd23d86
- SHA1 bb1b51207119d6f91e591ec29662cff48a8f9945
- SHA512 2102926ac1afcf34f0d7fbcaf18e20a093c7ab59ff8d4fb04f703f0c2de0f0b76f0fe023add1d6d1864ff24da4bd3418abd8c6bd05df81667c15ab390707c3c9
- SSDEEP 98304:ZRuLfVfs8eP6CrXX7u4nyXcezHjs7S8L+bgWaGu:ZRKK8e9tqcezHCGT
- TLSH T10F56CF117DD1483BD2DB0B30491EF62872EE97B12F74488BD6DC4A2C6E346A32716E67
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10
Malware Config
Signatures
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language regsvr32.exe - Modifies registry class 24 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ = "IUpgradeHelper" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ = "IUpgradeHelper" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\ = "{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\Version = "1.0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7} regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\ = "TencentVideoReporterPC" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\0\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\HELPDIR regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\Version = "1.0" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\FLAGS\ = "0" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ProxyStubClsid32 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\ = "{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\HELPDIR\ regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ProxyStubClsid32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\FLAGS regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\0 regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\PdFcOrE8.dll" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531} regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 696 wrote to memory of 2088 696 regsvr32.exe 86
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\PdFcOrE8.dll1⤵
- Suspicious use of WriteProcessMemory
PID:696 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\PdFcOrE8.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:2088
-