| File name: | cats.exe |
| Full analysis: | https://app.any.run/tasks/a6d624fc-58fe-47a3-b540-c2e42ab98a1d |
| 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: | June 16, 2025, 17:39:43 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | E0D108435C58DC9403588E4DCAB68275 |
| SHA1: | 7A7331423938020550FF3DECD2E8B50B3EE5C87A |
| SHA256: | 61CD0131CB4BF090C5EE7761566F6F7A778E78B37D220F0506F98632A2663EE8 |
| SSDEEP: | 3072:6nR77op+Ll2i+dN0OXJDFrql2i+dN0OXJDFrj:mMsEi8NpZgEi8NpZ |
MALICIOUS
Changes the autorun value in the registry
- cats.exe (PID: 504)
- firefox.exe (PID: 1480)
RANSOMWARE has been detected
- Chrome32.exe (PID: 5644)
- firefox.exe (PID: 1480)
SUSPICIOUS
Starts itself from another location
- cats.exe (PID: 504)
Executable content was dropped or overwritten
- cats.exe (PID: 504)
Creates file in the systems drive root
- Chrome32.exe (PID: 5644)
- firefox.exe (PID: 1480)
INFO
Launching a file from a Registry key
- cats.exe (PID: 504)
- firefox.exe (PID: 1480)
Checks supported languages
- cats.exe (PID: 504)
- Chrome32.exe (PID: 5644)
- firefox.exe (PID: 1480)
Creates files or folders in the user directory
- cats.exe (PID: 504)
Reads the computer name
- Chrome32.exe (PID: 5644)
Manual execution by a user
- firefox.exe (PID: 1480)
- rundll32.exe (PID: 3460)
- rundll32.exe (PID: 5532)
- rundll32.exe (PID: 5252)
- rundll32.exe (PID: 1204)
- rundll32.exe (PID: 3688)
- rundll32.exe (PID: 5560)
Reads the machine GUID from the registry
- Chrome32.exe (PID: 5644)
- firefox.exe (PID: 1480)
Creates files in the program directory
- Chrome32.exe (PID: 5644)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (63.1) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.8) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Generic Win/DOS Executable (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2021:03:29 16:24:07+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 125952 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x20bea |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 37.0.2.5583 |
| ProductVersionNumber: | 37.0.2.5583 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | Firefox |
| FileVersion: | 37.0.2.5583 |
| InternalName: | cats.exe |
| LegalCopyright: | Copyright 1999-2012 Firefox and Mozzilla developers. All rights reserved. |
| LegalTrademarks: | - |
| OriginalFileName: | cats.exe |
| ProductName: | Firefox |
| ProductVersion: | 37.0.2.5583 |
| AssemblyVersion: | 37.0.2.5583 |
Total processes
141
Monitored processes
10
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 504 | "C:\Users\admin\Desktop\cats.exe" | C:\Users\admin\Desktop\cats.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Firefox Exit code: 0 Version: 37.0.2.5583 Modules
| |||||||||||||||
| 1136 | 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
| |||||||||||||||
| 1204 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\computertalk.jpg.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1480 | C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Firefox Version: 37.0.2.5583 Modules
| |||||||||||||||
| 3460 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\documenttransportation.jpg.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3688 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\shoppress.jpg.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5252 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\allowrent.png.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5532 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\letet.jpg.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5560 | "C:\WINDOWS\system32\rundll32.exe" cryptext.dll,CryptExtOpenCAT C:\Users\admin\Downloads\availableeasily.jpg.cat | C:\Windows\System32\rundll32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5644 | "C:\Users\admin\AppData\Local\Google (x86)\Chrome32.exe" C:\Users\admin\Desktop\cats.exe | C:\Users\admin\AppData\Local\Google (x86)\Chrome32.exe | cats.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Firefox Version: 37.0.2.5583 Modules
| |||||||||||||||
Total events
60 069
Read events
60 059
Write events
10
Delete events
0
Modification events
| (PID) Process: | (504) cats.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | firefox.exe |
Value: C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | |||
| (PID) Process: | (504) cats.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (504) cats.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (504) cats.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (504) cats.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (1480) firefox.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run |
| Operation: | write | Name: | firefox.exe |
Value: C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | |||
Executable files
2
Suspicious files
129
Text files
1
Unknown types
11
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 5644 | Chrome32.exe | C:\ProgramData\Microsoft\User Account Pictures\admin.dat.cat | binary | |
MD5:A2EC71F236B0DA26C756B086BD502F09 | SHA256:04080941D22F1651B9B0191F503F1E8B6F29C27B4F69CC24462294934011AE2C | |||
| 504 | cats.exe | C:\Users\admin\AppData\Roaming\Frfx\firefox.exe | executable | |
MD5:E0D108435C58DC9403588E4DCAB68275 | SHA256:61CD0131CB4BF090C5EE7761566F6F7A778E78B37D220F0506F98632A2663EE8 | |||
| 504 | cats.exe | C:\Users\admin\AppData\Local\Google (x86)\Chrome32.exe | executable | |
MD5:E0D108435C58DC9403588E4DCAB68275 | SHA256:61CD0131CB4BF090C5EE7761566F6F7A778E78B37D220F0506F98632A2663EE8 | |||
| 5644 | Chrome32.exe | C:\Users\admin\Desktop\comingkitchen.jpg.cat | binary | |
MD5:88400C22EF00301A6623DD62A22011B8 | SHA256:EBA219B970EB43AA92A262B9118B9CBAE67AB47330007A2C59E24AE2CBD6AA9C | |||
| 5644 | Chrome32.exe | C:\Users\admin\Desktop\channelnext.rtf.cat | fli | |
MD5:2597B4CF6A81F39F413F7275E6397E65 | SHA256:94BBBBD10F9BE991B139782DE57C813CA9DEA7EC1B55DD74FB5A3EF4BC507FB7 | |||
| 5644 | Chrome32.exe | C:\Users\admin\Desktop\hasenterprise.rtf.cat | fli | |
MD5:4C5581AF1BA03AA84A43ED83853B493D | SHA256:A707B32A938DA4A4346C93D8EB968E49E06D305D36EB7CE2BF54D6F7E661670B | |||
| 5644 | Chrome32.exe | C:\Users\admin\Desktop\meansextra.rtf.cat | fli | |
MD5:631886F972F9C1BCB3D3AD9ABB5B8780 | SHA256:AADE4C37CFC937EB9EA15280D880512CA12423CA2AABE72398E9076E258965F6 | |||
| 5644 | Chrome32.exe | C:\Users\admin\Documents\republicthroughout.rtf.cat | fli | |
MD5:EB843B31F097E10354A536CFD2D5A84E | SHA256:7B32DF9D9C6AE74786BB2BF8B23A90C12767C64F852572D02D470E571E5B07B0 | |||
| 5644 | Chrome32.exe | C:\Users\admin\Documents\chancebrowser.rtf.cat | fli | |
MD5:3D7AA4BF2346CFBFE59833B90E1DA1A9 | SHA256:C82877A6BEB9A38C580642A9B1653CA9DB150D4132345E15DE20A3E9503BD055 | |||
| 5644 | Chrome32.exe | C:\Users\admin\Desktop\validinput.rtf.cat | fli | |
MD5:E87C191FDE3902356D5679D09FD889AC | SHA256:E18B4A3FD1CC96D1FDB54969DE0E863E39297F50EB16BB9A537C6832D96036FC | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
22
DNS requests
7
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
5944 | MoUsoCoreWorker.exe | GET | 200 | 2.16.241.12:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | DE | binary | 825 b | whitelisted |
1268 | svchost.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | QA | binary | 868 b | whitelisted |
5944 | MoUsoCoreWorker.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | QA | binary | 868 b | whitelisted |
1268 | svchost.exe | GET | 200 | 2.16.241.12:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | DE | binary | 825 b | whitelisted |
7052 | RUXIMICS.exe | GET | 200 | 2.16.241.12:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | DE | binary | 825 b | whitelisted |
7052 | RUXIMICS.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | QA | binary | 868 b | whitelisted |
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | US | xml | 512 b | whitelisted |
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | US | xml | 512 b | 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 | 192.168.100.255:137 | — | — | — | whitelisted |
1268 | svchost.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
5944 | MoUsoCoreWorker.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
7052 | RUXIMICS.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1268 | svchost.exe | 2.16.241.12:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
7052 | RUXIMICS.exe | 2.16.241.12:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5944 | MoUsoCoreWorker.exe | 2.16.241.12:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1268 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1268 | svchost.exe | 2.23.246.101:80 | www.microsoft.com | Ooredoo Q.S.C. | QA | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
self.events.data.microsoft.com |
| whitelisted |