| File name: | mail_sender.exe |
| Full analysis: | https://app.any.run/tasks/78702204-972f-4a47-898c-6c48555728e4 |
| Verdict: | Malicious activity |
| Analysis date: | June 21, 2025, 21:08:05 |
| 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: | 7F7D72C5438DB9D24BBF1A2B73E3F83F |
| SHA1: | 7DBDE12A68A5C4571A554F9A8C681C5480F568C7 |
| SHA256: | EC69B4B044BC50938A2753CD4AAA82FEAEF81C362A9B2D54D1D3FC8B7347BA30 |
| SSDEEP: | 98304:2C3CpAdJSMvqeLnc1ZaDPHUFK/uXbQx2U0kfoV5vzB8AbdL141eKVjaNgsL7UJDO:D3gKVVkTy9KNUf0yL |
MALICIOUS
No malicious indicators.SUSPICIOUS
Process drops python dynamic module
- mail_sender.exe (PID: 2040)
Executable content was dropped or overwritten
- mail_sender.exe (PID: 2040)
Application launched itself
- mail_sender.exe (PID: 2040)
Process drops legitimate windows executable
- mail_sender.exe (PID: 2040)
Loads Python modules
- mail_sender.exe (PID: 4748)
The process drops C-runtime libraries
- mail_sender.exe (PID: 2040)
INFO
Reads the computer name
- mail_sender.exe (PID: 2040)
- mail_sender.exe (PID: 4748)
Checks supported languages
- mail_sender.exe (PID: 2040)
- mail_sender.exe (PID: 4748)
Create files in a temporary directory
- mail_sender.exe (PID: 2040)
The sample compiled with english language support
- mail_sender.exe (PID: 2040)
Checks proxy server information
- slui.exe (PID: 5564)
Reads the software policy settings
- slui.exe (PID: 5564)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (87.3) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (6.3) |
| .exe | | | DOS Executable Generic (6.3) |
EXIF
EXE
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2025:06:18 07:44:33+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32+ |
| LinkerVersion: | 14.43 |
| CodeSize: | 174592 |
| InitializedDataSize: | 157184 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xd0d0 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
Total processes
136
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2040 | "C:\Users\admin\Desktop\mail_sender.exe" | C:\Users\admin\Desktop\mail_sender.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4748 | "C:\Users\admin\Desktop\mail_sender.exe" | C:\Users\admin\Desktop\mail_sender.exe | — | mail_sender.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 5564 | 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
3 781
Read events
3 781
Write events
0
Delete events
0
Modification events
Executable files
52
Suspicious files
1
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_decimal.pyd | executable | |
MD5:F465C15E7BACEAC920DC58A5FB922C1C | SHA256:F4A486A0CA6A53659159A404614C7E7EDCCB6BFBCDEB844F6CEE544436A826CB | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\VCRUNTIME140.dll | executable | |
MD5:862F820C3251E4CA6FC0AC00E4092239 | SHA256:36585912E5EAF83BA9FEA0631534F690CCDC2D7BA91537166FE53E56C221E153 | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_lzma.pyd | executable | |
MD5:3E73BC69EFB418E76D38BE5857A77027 | SHA256:6F48E7EBA363CB67F3465A6C91B5872454B44FC30B82710DFA4A4489270CE95C | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_socket.pyd | executable | |
MD5:69C4A9A654CF6D1684B73A431949B333 | SHA256:8DAEFAFF53E6956F5AEA5279A7C71F17D8C63E2B0D54031C3B9E82FCB0FB84DB | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_ssl.pyd | executable | |
MD5:CE19076F6B62292ED66FD06E5BA67BBA | SHA256:21CA71B2C1766FC68734CB3D1E7C2C0439B86BCFB95E00B367C5FD48C59E617C | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\api-ms-win-core-console-l1-1-0.dll | executable | |
MD5:9A1E39A255C0A22E49906DA7DDC69274 | SHA256:A742B375FC6CB32E17C66F7E677CEF59399216AC21C1384DE6EC892C2B099A4D | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\api-ms-win-core-debug-l1-1-0.dll | executable | |
MD5:6DF69A0BEE972D981517A031759AB800 | SHA256:29354CBE6E808AE1B1C187AAFE5F2A66D8CB5B4ED7EF3F830884C7C02171305F | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_bz2.pyd | executable | |
MD5:057325E89B4DB46E6B18A52D1A691CAA | SHA256:5BA872CAA7FCEE0F4FB81C6E0201CEED9BD92A3624F16828DD316144D292A869 | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\_hashlib.pyd | executable | |
MD5:CF4120BAD9A7F77993DD7A95568D83D7 | SHA256:14765E83996FE6D50AEDC11BB41D7C427A3E846A6A6293A4A46F7EA7E3F14148 | |||
| 2040 | mail_sender.exe | C:\Users\admin\AppData\Local\Temp\_MEI20402\api-ms-win-core-handle-l1-1-0.dll | executable | |
MD5:22C40155ED832A8FE858479E40BB368B | SHA256:049A1B6B3FD664E5AB2BB27FC3614D8F8091A0DABD4AEBC92A0804BF62A55C38 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
30
TCP/UDP connections
44
DNS requests
18
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | POST | 400 | 20.190.159.23:443 | https://login.live.com/ppsecure/deviceaddcredential.srf | unknown | text | 203 b | whitelisted |
6876 | RUXIMICS.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6876 | RUXIMICS.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 23.53.40.176:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | POST | 200 | 40.126.32.72:443 | https://login.live.com/RST2.srf | unknown | xml | 1.24 Kb | whitelisted |
— | — | POST | 200 | 20.190.159.23:443 | https://login.live.com/ppsecure/deviceaddcredential.srf | unknown | text | 16.7 Kb | whitelisted |
— | — | POST | 200 | 20.190.160.128:443 | https://login.live.com/RST2.srf | unknown | xml | 11.1 Kb | 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 | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6876 | RUXIMICS.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1268 | svchost.exe | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1268 | svchost.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
5944 | MoUsoCoreWorker.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
6876 | RUXIMICS.exe | 23.53.40.176:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1268 | svchost.exe | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
6876 | RUXIMICS.exe | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
smtpint.domgrosfillex.com |
| unknown |
settings-win.data.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |