| File name: | WinSecurityUpdate.exe |
| Full analysis: | https://app.any.run/tasks/22eed6bb-c155-40b0-80a4-7be0a2615244 |
| Verdict: | Malicious activity |
| Threats: | Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying. |
| Analysis date: | April 29, 2025, 13:14:14 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (GUI) x86-64, for MS Windows, 7 sections |
| MD5: | D075219AC785F936BEDBA38AE95219FF |
| SHA1: | 8ED270C315C76B69649B1DA02D15EF0CCAA44E45 |
| SHA256: | B307708F0DAC05444FDB92EB1F850ABC7D1591B632702DCDA6CC19E6D00D140E |
| SSDEEP: | 98304:U1T2Q6FLib2hL3ELnQu33ufgnNmgyvOYVAYwVf9TtYw9pk9dbX3pI30iLVINqvha:JwrG2TaMa+J881mwT2iRjOhKQs |
MALICIOUS
Renames files like ransomware
- WinSecurityUpdate.exe (PID: 7748)
SUSPICIOUS
Process drops python dynamic module
- WinSecurityUpdate.exe (PID: 7296)
The process drops C-runtime libraries
- WinSecurityUpdate.exe (PID: 7296)
Executable content was dropped or overwritten
- WinSecurityUpdate.exe (PID: 7296)
Process drops legitimate windows executable
- WinSecurityUpdate.exe (PID: 7296)
There is functionality for taking screenshot (YARA)
- WinSecurityUpdate.exe (PID: 7296)
- WinSecurityUpdate.exe (PID: 7748)
Loads Python modules
- WinSecurityUpdate.exe (PID: 7748)
Application launched itself
- WinSecurityUpdate.exe (PID: 7296)
INFO
Reads the computer name
- WinSecurityUpdate.exe (PID: 7296)
- WinSecurityUpdate.exe (PID: 7748)
Checks supported languages
- WinSecurityUpdate.exe (PID: 7296)
- WinSecurityUpdate.exe (PID: 7748)
The sample compiled with english language support
- WinSecurityUpdate.exe (PID: 7296)
Create files in a temporary directory
- WinSecurityUpdate.exe (PID: 7296)
PyInstaller has been detected (YARA)
- WinSecurityUpdate.exe (PID: 7296)
- WinSecurityUpdate.exe (PID: 7748)
Manual execution by a user
- OpenWith.exe (PID: 8084)
- OpenWith.exe (PID: 6044)
- OpenWith.exe (PID: 7220)
- OpenWith.exe (PID: 8104)
Checks proxy server information
- slui.exe (PID: 7852)
Reads Microsoft Office registry keys
- OpenWith.exe (PID: 8104)
- OpenWith.exe (PID: 8084)
- OpenWith.exe (PID: 6044)
- OpenWith.exe (PID: 7220)
Reads the software policy settings
- slui.exe (PID: 7852)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (57.6) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (36.9) |
| .exe | | | Generic Win/DOS Executable (2.6) |
| .exe | | | DOS Executable Generic (2.6) |
EXIF
EXE
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2025:04:26 22:37:54+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14.42 |
| CodeSize: | 173568 |
| InitializedDataSize: | 155648 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xce20 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
Total processes
130
Monitored processes
7
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6044 | "C:\WINDOWS\System32\OpenWith.exe" C:\Users\admin\Downloads\netwide.jpg.ru | C:\Windows\System32\OpenWith.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Pick an app Exit code: 2147943623 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7220 | "C:\WINDOWS\System32\OpenWith.exe" C:\Users\admin\Downloads\buyingweekly.png.ru | C:\Windows\System32\OpenWith.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Pick an app Exit code: 2147943623 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7296 | "C:\Users\admin\Desktop\WinSecurityUpdate.exe" | C:\Users\admin\Desktop\WinSecurityUpdate.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
| |||||||||||||||
| 7748 | "C:\Users\admin\Desktop\WinSecurityUpdate.exe" | C:\Users\admin\Desktop\WinSecurityUpdate.exe | — | WinSecurityUpdate.exe | |||||||||||
User: admin Integrity Level: MEDIUM Modules
| |||||||||||||||
| 7852 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 8084 | "C:\WINDOWS\System32\OpenWith.exe" C:\Users\admin\Downloads\stockdigital.jpg.ru | C:\Windows\System32\OpenWith.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Pick an app Exit code: 2147943623 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 8104 | "C:\WINDOWS\System32\OpenWith.exe" C:\Users\admin\Downloads\showprices.jpg.ru | C:\Windows\System32\OpenWith.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Pick an app Exit code: 2147943623 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
5 799
Read events
5 799
Write events
0
Delete events
0
Modification events
Executable files
21
Suspicious files
34
Text files
1 164
Unknown types
3
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_tcl_data\auto.tcl | text | |
MD5:97EFA9EBE840EA051F9706504C8BD783 | SHA256:08113823951619D659EB03A1F6ACD2F9500E1264795219125A5DF7B83CABCB99 | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_hashlib.pyd | executable | |
MD5:72B2F8CDF8D6B1DBBDD4E0C0BACF849E | SHA256:818C4CF51E93CEFDB6EDD64341B034B46FAC2DBF77158FF60C77FE3D5BBC80EC | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_socket.pyd | executable | |
MD5:0106EE3F61A54D922190B3A01C81A453 | SHA256:C22DF48785B684A8EBEAEF5ABFC35840A6B67926BC0366214D74842F7B71D6BA | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_lzma.pyd | executable | |
MD5:7C25A079B992919CC97221955DAC050C | SHA256:7EA254E37D820EAB6E9D312C390D1039EDB78C8B7D913F5A86A91CB0261CE3FF | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_decimal.pyd | executable | |
MD5:240A03069D6968741B703D026337AD2C | SHA256:E23C58ACB7B4A85DE32F9FEAE60AC85F9E4580409BACA5D36EC4777F0528F3AF | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_bz2.pyd | executable | |
MD5:2BE172C3086EFE56C7E1D3279142295A | SHA256:7F20792D8600203F7AC0C229E1387E8D40328F9DA22D2ACBA95B3761B5E49950 | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\VCRUNTIME140.dll | executable | |
MD5:32DA96115C9D783A0769312C0482A62D | SHA256:8B10C53241726B0ACC9F513157E67FCB01C166FEC69E5E38CA6AADA8F9A3619F | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_tcl_data\encoding\cp1253.enc | text | |
MD5:441B86A0DE77F25C91DF1CD4685F651D | SHA256:5B8D47451F847C1BDE12CACA3739CA29860553C0B6399EE990D51B26F9A69722 | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_tcl_data\encoding\cp1255.enc | text | |
MD5:6DEA4179969D6C81C66C3B0F91B39769 | SHA256:47576CAE321C80E69C7F35205639680BF28010111E86E228ED191B084FAC6B91 | |||
| 7296 | WinSecurityUpdate.exe | C:\Users\admin\AppData\Local\Temp\_MEI72962\_tcl_data\encoding\cp1250.enc | text | |
MD5:9568EDE60D3F917F1671F5A625A801C4 | SHA256:E2991A6F7A7A4D8D3C4C97947298FD5BACB3EAA2F898CEE17F5E21A9861B9626 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
32
TCP/UDP connections
50
DNS requests
18
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2104 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
2104 | svchost.exe | GET | 200 | 23.32.238.34:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 304 | 20.12.23.50:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
— | — | GET | 200 | 20.12.23.50:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
7536 | SIHClient.exe | GET | 200 | 2.19.198.194:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 20.3.187.198:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | unknown | — | — | — |
7536 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
7536 | SIHClient.exe | GET | 200 | 2.19.198.194:80 | http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl | unknown | — | — | whitelisted |
7536 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
7536 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
2104 | svchost.exe | 23.32.238.34:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
2104 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
6544 | svchost.exe | 20.190.159.130:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
2104 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |