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
29/07/2026, 12:16
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef.dll
Resource
win10v2004-20260513-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef.dll
Resource
win11ltsc2024-20260709-en
6 signatures
150 seconds
General
- Target c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef.dll
- Size 347KB
- Sample260729-pfzvfstdpg
- SHA256 c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef
- MD5 62f16aee6d60fee3e0d62e56473b4d1c
- SHA1 4ddd39fd0283fad558d63c9d540b644141a7c0a1
- SHA512 cb49679c17f61ad83356219f2304320182a61fd015fb245032b6bac07f30f987fc7b582efb85bc91fa3a56417da769594f88d432a8ee202f905c1b3d4fc74909
- SSDEEP 6144:Gq/8TB/sK0skAAKEEiPzzmgPBSi1sJHp4V9BKapTGDG+u9HJ9i:H/rKmEiPPNB5kewgGDG+u9p
- TLSH T10574AE0191A80A99E1B682F8C43305468F7DFD49CB60C95B2AA542FD9F37FF5503ABE1
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
Malware Config
Signatures
- Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
- Executes dropped EXE 2 IoCs
pid Process 5224 wuaupdt.exe 5088 svcmon.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsSystemHealth = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\SystemHealth\\svcmon.exe" wuaupdt.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\System32\svcmon.log svcmon.exe - Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000_Classes\CLSID\{7C3A5D49-E8B2-4F1C-A6D0-3E7F8B9C2D1A}\InprocServer32 regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000_Classes\CLSID regsvr32.exe Key created \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000_Classes\CLSID\{7C3A5D49-E8B2-4F1C-A6D0-3E7F8B9C2D1A} regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000_Classes\CLSID\{7C3A5D49-E8B2-4F1C-A6D0-3E7F8B9C2D1A}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef.dll" regsvr32.exe Set value (str) \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000_Classes\CLSID\{7C3A5D49-E8B2-4F1C-A6D0-3E7F8B9C2D1A}\InprocServer32\ThreadingModel = "Both" regsvr32.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1788 wrote to memory of 5224 1788 regsvr32.exe 85
Processes
-
C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\c0daec5c4417c16de8bced454b51cc02c0ee57ff66257b9516d6ae69ecf539ef.dll1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1788 -
C:\Users\Admin\AppData\Local\Temp\wuaupdt.exeC:\Users\Admin\AppData\Local\Temp\wuaupdt.exe -k d36deee39830bfb111b50bf8315a4de292812e0d2aafd5fc8666c9db11e8e590 -p C:\Users\Admin\AppData\Local\Temp\wuaupdt.dat2⤵
- Executes dropped EXE
- Adds Run key to start application
PID:5224
-
-
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemHealth\svcmon.exeC:\Users\Admin\AppData\Roaming\Microsoft\Windows\SystemHealth\svcmon.exe1⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:5088
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\wuaupdt.dat
- Size 19KB
- SHA256 8d217ad2ff7ed9e162cbd20bd207562f7e4f50d3e4d1f36ab01d653380176d16
- MD5 d4a0b5b1f5d4f43ff01360d2f16f171b
- SHA1 4dc61875f53c58fbdfae8db3e9d5e66c7f5f7db5
- SHA512 a719b5e766abdb445523a11c4631d33b093eafc6f9a15ec6565e4da23926efd84bfce63df315a4a2dfb0f11136c4db016de6cd4d015346528984f8f6b846f5fc
- SSDEEP 384:GCn1ZJSNWt3tgHichNiZssurAN1fwK1rssfFYEIepFV6Qs/blkuP:GK1ZsQFaHlrCurAX3rssfFqepFVVuP
- TLSH T12E92E18B1AEF6930A77623B0B4920B164513E24E6869584E321227F5C93D7E2CF6477D
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\wuaupdt.exe
- Size 226KB
- SHA256 28e55dc62f9a9c9938c3b48b2d17a33d6fa96e74c1e9d31f5c685fef8c39b217
- MD5 230bb7c97fbb1e96d9ebee43cfa09024
- SHA1 8ef97a15935e269c02416f79c4316b6ee81f9d00
- SHA512 4e9ecff43c7ff6123b1cd4d3d4ec53f914c8d2f50b7aa14059982b8be0a19efd809445bb685688d595f00a517e7bef51c7b5e9ea641ae16d6117fc0e1357bf74
- SSDEEP 3072:JhM3eH6r0m5wksg0mzZMvsuvRuUlHG9+aLSWvy6PP+Yalj1TuKubf5Ql9Tx8:xHfUwksg0gMviUlSSWvywTarI1w9TG
- TLSH T182346C5573B58AF5ECA781398D624606F7727B170722D7DB03A0C266AF13AE04E3E721
- MD5 SHA1 SHA512 SSDEEP TLSH