| File name: | best.exe |
| Full analysis: | https://app.any.run/tasks/ae01bad1-6237-4427-8d0a-926a665306fe |
| 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: | April 06, 2025, 11:24:37 |
| 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: | BC173CDD5E4C1155313EA691F3BBC2AD |
| SHA1: | 1F20381A53C4CF8D8C766D83472E18B71AA40352 |
| SHA256: | 571259952558D6C3C0AD691D4C9D67F722ED16EE359F3B5C0A9EC990017ECC39 |
| SSDEEP: | 3072:91zJQhGjtQmzAvpehGfSdcRCG28CgnuvSmAUwO4hSC2zQwAGQxY8e11sAKuE6c3:ipSdcXSvkUMSC2zJA08e1m4 |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2053:02:19 18:54:36+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 232960 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3adce |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | Payload for Umbral Stealer |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | - |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | - |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 496 | "attrib.exe" +h +s "C:\Users\admin\Desktop\best.exe" | C:\Windows\System32\attrib.exe | — | best.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Attribute Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 744 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | WMIC.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
| |||||||||||||||
| 1616 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.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
| |||||||||||||||
| 2196 | 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
| |||||||||||||||
| 2236 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.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
| |||||||||||||||
| 4268 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | attrib.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
| |||||||||||||||
| 4980 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | WMIC.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
| |||||||||||||||
| 5008 | "wmic.exe" computersystem get totalphysicalmemory | C:\Windows\System32\wbem\WMIC.exe | — | best.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5176 | "wmic" path win32_VideoController get name | C:\Windows\System32\wbem\WMIC.exe | — | best.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: WMI Commandline Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5380 | "powershell.exe" Get-ItemPropertyValue -Path 'HKLM:System\CurrentControlSet\Control\Session Manager\Environment' -Name PROCESSOR_IDENTIFIER | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | best.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows PowerShell Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (7640) best.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\best_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7420 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_vda4q5vx.zoj.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 7420 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_h24qvyqk.wle.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 7972 | best.exe | C:\Windows\System32\drivers\etc\hosts | text | |
MD5:2992FEB95030E84DE4A6D2F432E17E5F | SHA256:5E9F7AAADDAD64848ADC44BD44DE1FFE3E69DFCCDEFF29B58067A7F313EABD2D | |||
| 5720 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_4sbk52ky.ia3.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 5720 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_5mvglarf.nm0.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 7972 | best.exe | C:\Users\admin\AppData\Local\Temp\Nd2PugwmTOXLHIC | binary | |
MD5:A45465CDCDC6CB30C8906F3DA4EC114C | SHA256:4412319EF944EBCCA9581CBACB1D4E1DC614C348D1DFC5D2FAAAAD863D300209 | |||
| 7420 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:E06A5E3B39E34DF0AC1B838B934007CF | SHA256:75BE3B529D162CC466739F762A239137847C78A04DEB2DCB726EC6C8F3D4AB6B | |||
| 7972 | best.exe | C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\zK1tw.scr | executable | |
MD5:BC173CDD5E4C1155313EA691F3BBC2AD | SHA256:571259952558D6C3C0AD691D4C9D67F722ED16EE359F3B5C0A9EC990017ECC39 | |||
| 7972 | best.exe | C:\Users\admin\AppData\Local\Temp\0wr0ghmlVVlqHy0 | binary | |
MD5:91FF0DAC5DF86E798BFEF5E573536B08 | SHA256:DE676BAE28A480011D3D012DB14BEF539324E62A841A9627863C689BEA168AF3 | |||
| 7972 | best.exe | C:\Users\admin\AppData\Local\Temp\M1DJApoUSS1BrIu\Display\Display.png | binary | |
MD5:11E879CD9CB863970E00CEC758F03AE0 | SHA256:61DE4751390F5461D39D8C5EA483B3F4BE21F1D32360A3EE99E335C316E9F2A9 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 204 | 142.250.184.195:443 | https://gstatic.com/generate_204 | unknown | — | — | — |
7640 | best.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/line/?fields=hosting | unknown | — | — | whitelisted |
2104 | svchost.exe | GET | 200 | 23.216.77.6:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 204 | 142.250.184.195:443 | https://gstatic.com/generate_204 | unknown | — | — | — |
7972 | best.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/json/?fields=225545 | unknown | — | — | whitelisted |
7972 | best.exe | GET | 200 | 208.95.112.1:80 | http://ip-api.com/line/?fields=hosting | unknown | — | — | whitelisted |
— | — | POST | 404 | 162.159.138.232:443 | https://discord.com/api/webhooks/1358400667932426250/JybIyJAfZQVDvqigVfSEbQ-rtXZMwgkceK5H191TNZUON6ijJ6f01KcNi6BLGKbrTLr0 | unknown | binary | 45 b | whitelisted |
— | — | POST | 500 | 40.91.76.224:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
— | — | POST | 404 | 162.159.136.232:443 | https://discord.com/api/webhooks/1358400667932426250/JybIyJAfZQVDvqigVfSEbQ-rtXZMwgkceK5H191TNZUON6ijJ6f01KcNi6BLGKbrTLr0 | unknown | binary | 45 b | whitelisted |
— | — | POST | 500 | 20.83.72.98:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | unknown | xml | 512 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4024 | RUXIMICS.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2104 | svchost.exe | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
7640 | best.exe | 216.58.206.35:443 | gstatic.com | GOOGLE | US | whitelisted |
2104 | svchost.exe | 23.216.77.6:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
7640 | best.exe | 208.95.112.1:80 | ip-api.com | TUT-AS | US | whitelisted |
2104 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
7972 | best.exe | 216.58.206.35:443 | gstatic.com | GOOGLE | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
gstatic.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
ip-api.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
discord.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Device Retrieving External IP Address Detected | INFO [ANY.RUN] External IP Check (ip-api .com) |
2196 | svchost.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup Domain in DNS Lookup (ip-api .com) |
7640 | best.exe | Device Retrieving External IP Address Detected | POLICY [ANY.RUN] External Hosting Lookup by ip-api |
7640 | best.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup ip-api.com |
7972 | best.exe | Device Retrieving External IP Address Detected | POLICY [ANY.RUN] External Hosting Lookup by ip-api |
7972 | best.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup ip-api.com |
7972 | best.exe | A Network Trojan was detected | STEALER [ANY.RUN] UmbralStealer Generic External IP Check |
7972 | best.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup ip-api.com |
7972 | best.exe | Misc activity | ET INFO Observed Discord Domain (discord .com in TLS SNI) |
2196 | svchost.exe | Misc activity | ET INFO Observed Discord Domain in DNS Lookup (discord .com) |