| File name: | build.exe |
| Full analysis: | https://app.any.run/tasks/1f12a751-d5e6-4adf-b6df-b7a9cc0f4fcb |
| 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: | June 21, 2025, 21:51:22 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 4 sections |
| MD5: | FA4BAE8CDD737E56ABB6181D6645191E |
| SHA1: | 065CAB0AF0CF3026DE3A24E21FBDEC5D2FDA3D5B |
| SHA256: | 9E589CE8E361ABAC8485995A9AB81A452B8B0A99F0350227DA2C2A2AA33881CD |
| SSDEEP: | 24576:a2UScOZk0MKvud6XsUbZIbsPKfzlHiMJA8SRsjAw:a2UScOm0MKmd6XsUbZIbsPKfzlHLJA8v |
MALICIOUS
Steals credentials from Web Browsers
- build.exe (PID: 4224)
Actions looks like stealing of personal data
- build.exe (PID: 4224)
SUSPICIOUS
Executes application which crashes
- build.exe (PID: 4224)
INFO
Reads the computer name
- build.exe (PID: 4224)
Checks supported languages
- build.exe (PID: 4224)
Create files in a temporary directory
- build.exe (PID: 4224)
Checks proxy server information
- WerFault.exe (PID: 1324)
- slui.exe (PID: 6428)
Creates files or folders in the user directory
- WerFault.exe (PID: 1324)
Reads the software policy settings
- WerFault.exe (PID: 1324)
- slui.exe (PID: 6428)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2020:12:06 14:16:57+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14.28 |
| CodeSize: | 546304 |
| InitializedDataSize: | 152576 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x5e27e |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
Total processes
140
Monitored processes
3
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1324 | C:\WINDOWS\SysWOW64\WerFault.exe -u -p 4224 -s 684 | C:\Windows\SysWOW64\WerFault.exe | build.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Problem Reporting Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4224 | "C:\Users\admin\AppData\Local\Temp\build.exe" | C:\Users\admin\AppData\Local\Temp\build.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 3221226505 Modules
| |||||||||||||||
| 6428 | 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
| |||||||||||||||
Total events
3 663
Read events
3 663
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
15
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1324 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_build.exe_644bfa471d8b8e9d9020d4a394d58aa1bbf194_772e5f62_37d1540e-1fc3-4871-87fe-09a1411fe21e\Report.wer | — | |
MD5:— | SHA256:— | |||
| 4224 | build.exe | C:\Users\admin\AppData\Local\Temp\BOFUPMJWUSFVSNIBDJEE\PKSPOJEGLU.SMFSMLXSD | binary | |
MD5:A5B55EF875A290F8739655274B5CFAE6 | SHA256:3C6E069A7DF07EE5ECA265821545BD9B5A0BE65DCA21805D42B10133D12916CF | |||
| 1324 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER63DB.tmp.WERInternalMetadata.xml | xml | |
MD5:B9923BE0304977114B6AA9FCCE1754D3 | SHA256:2B44BECA996ECE856144C307C63E66DC8126CEDC69A4ED9EB317FECEE7048FB7 | |||
| 4224 | build.exe | C:\Users\admin\AppData\Local\Temp\BOFUPMJWUSFVSNIBDJEE\NEXEWRILCY.NYTJFQMCR | binary | |
MD5:A45465CDCDC6CB30C8906F3DA4EC114C | SHA256:4412319EF944EBCCA9581CBACB1D4E1DC614C348D1DFC5D2FAAAAD863D300209 | |||
| 1324 | WerFault.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\21253908F3CB05D51B1C2DA8B681A785 | binary | |
MD5:D310523737A0D4D05066857AC157F458 | SHA256:0A0520D498306689AFA3CAC09ACE82E09229108FC9FABA5A906291D077004484 | |||
| 1324 | WerFault.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\37C951188967C8EB88D99893D9D191FE | binary | |
MD5:FBB6447B28AB08B74B8FE150D87AAF63 | SHA256:5C80838FA2DBB2E09C946A02F9227592D6F1FA85274382725B30E52FFF809F1E | |||
| 1324 | WerFault.exe | C:\Users\admin\AppData\Local\CrashDumps\build.exe.4224.dmp | binary | |
MD5:8B91553CE52688368F9C0A29EA993381 | SHA256:B34BBD1CA5F9C79A450C48DC8AFA2DA31F0410DE00072E8AFA8869700104779F | |||
| 1324 | WerFault.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\21253908F3CB05D51B1C2DA8B681A785 | binary | |
MD5:D9D1496DCEB41768F4079BE1330ECC13 | SHA256:6DB2216BDAA2F736ED38E2325FF35F7E3E50EFD9B56145ADC35AEDBD5F2FDC5B | |||
| 1324 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER63FB.tmp.xml | xml | |
MD5:9D4C90281E06451291CB3C03C6E907A5 | SHA256:ADAE08B02A903B001ED2B11F4541FB8AAF257E96E5CA2B510BAE86B74EF9ECFC | |||
| 1324 | WerFault.exe | C:\ProgramData\Microsoft\Windows\WER\Temp\WER637C.tmp.dmp | binary | |
MD5:A63773320C73C796098DB854BE88A563 | SHA256:E45C92DCAF0A4EA1642EA1F354AA7711A5585D71CD39B771D2750CF6BA704CB1 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
31
DNS requests
21
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1324 | WerFault.exe | GET | 200 | 184.24.77.40:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
1324 | WerFault.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3576 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | GET | 200 | 184.24.77.40:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6388 | 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 |
6388 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
2940 | svchost.exe | GET | 200 | 69.192.161.44:80 | http://x1.c.lencr.org/ | 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 | 192.168.100.255:137 | — | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1268 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4172 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1324 | WerFault.exe | 20.189.173.20:443 | watson.events.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
1324 | WerFault.exe | 184.24.77.40:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1324 | WerFault.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
3576 | svchost.exe | 20.190.160.130:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
3576 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
watson.events.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |