Analysis
- max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
04/08/2026, 12:13
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
VATN0.20260729212103.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
12 signatures
150 seconds
Behavioral task
behavioral4
Sample
VATN0.20260729212103.exe
Resource
win11ltsc2024-20260709-en
windows11-ltsc_2024-x64
12 signatures
150 seconds
General
- Target PdFcOrE8.dll
- Size 4.5MB
- Sample260804-pdsncswtby
- SHA256 88d671cb94273f7ae17bc0befe1ae895e4137056148c636bf643d5cc44ed0274
- MD5 395f42087d21a556123d25367d439a1e
- SHA1 7558da2c4e1b9ec2b407b52f0a7b05914034f0ae
- SHA512 aa7d9c2bd7edb87445f035e578337eb08f8f6748244a8df119622cd698ca3c7a277fd0d66e62391729165b1ea6b3a92a8c91588fd24b82796072ac0d3bb6e472
- SSDEEP 98304:/Z74Ma7QIacnJGws44BWdvUwoew5x9JuwE63WaGc0:xibacJ2woew5frE6mM
- TLSH T11B26CF127DD14C7EE2D703344A1EF229A2EE97F42F28C40BE2C8DA2D39746526746D67
- 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\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\FLAGS\ = "0" 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 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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\ = "{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}" 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}\ = "IUpgradeHelper" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531} 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7} 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\win32 regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0\HELPDIR regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\ = "{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}" regsvr32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{50CAD4C0-6A1B-44A4-A4B8-74FB9FF4FCB7}\1.0 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\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\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\ = "IUpgradeHelper" regsvr32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{ED4613DF-4D86-45E4-8767-B76513FC9531}\TypeLib\Version = "1.0" regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 6092 wrote to memory of 4124 6092 regsvr32.exe 89
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\PdFcOrE8.dll1⤵
- Suspicious use of WriteProcessMemory
PID:6092 -
C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\PdFcOrE8.dll2⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:4124
-