| File name: | bye.exe |
| Full analysis: | https://app.any.run/tasks/7ba97436-0ad4-4a42-a5ee-e1910cce7135 |
| Verdict: | Malicious activity |
| Analysis date: | July 01, 2024, 18:47:02 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 3A1FA1442CB029B8010BB74536321D38 |
| SHA1: | 5BFE9AC67C5F694041191195489D74CE233B78B5 |
| SHA256: | DF2522FC8758FE9E6AADF3439A53052536792C4A236C67DF1EFD36AB50A92C5E |
| SSDEEP: | 1536:XORspCzMjLaE+VLfVPX9V9iQrfA8Px6d20Lp:XORsVjL5+ZVfX9iQrbQd20Lp |
MALICIOUS
Drops the executable file immediately after the start
- bye.exe (PID: 3392)
Dynamically loads an assembly (POWERSHELL)
- bye.exe (PID: 3392)
Uses AES cipher (POWERSHELL)
- bye.exe (PID: 3392)
SUSPICIOUS
Converts a string into array of characters (POWERSHELL)
- bye.exe (PID: 3392)
Uses base64 encoding (POWERSHELL)
- bye.exe (PID: 3392)
Reverses array data (POWERSHELL)
- bye.exe (PID: 3392)
INFO
Checks supported languages
- bye.exe (PID: 3392)
Reads the computer name
- bye.exe (PID: 3392)
Reads the machine GUID from the registry
- bye.exe (PID: 3392)
Gets data length (POWERSHELL)
- bye.exe (PID: 3392)
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.) (82.9) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (7.4) |
| .exe | | | Win32 Executable (generic) (5.1) |
| .exe | | | Generic Win/DOS Executable (2.2) |
| .exe | | | DOS Executable Generic (2.2) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2021:07:09 14:14:52+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 58880 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1048e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows command line |
| FileVersionNumber: | 0.0.0.0 |
| ProductVersionNumber: | 0.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| FileDescription: | |
| FileVersion: | 0.0.0.0 |
| InternalName: | bye.exe |
| LegalCopyright: | |
| OriginalFileName: | bye.exe |
| ProductVersion: | 0.0.0.0 |
| AssemblyVersion: | 0.0.0.0 |
Total processes
39
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3392 | "C:\Users\admin\AppData\Local\Temp\bye.exe" | C:\Users\admin\AppData\Local\Temp\bye.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Version: 0.0.0.0 Modules
| |||||||||||||||
Total events
2 014
Read events
2 014
Write events
0
Delete events
0
Modification events
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
12
DNS requests
5
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1372 | svchost.exe | GET | 304 | 199.232.210.172:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?33775f6043c93e33 | unknown | — | — | unknown |
1060 | svchost.exe | GET | 304 | 199.232.214.172:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/disallowedcertstl.cab?a9f83325acc8ca75 | unknown | — | — | unknown |
1372 | svchost.exe | GET | 200 | 23.48.23.166:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | unknown |
1372 | svchost.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | unknown |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
1060 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
1372 | svchost.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 |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
2564 | svchost.exe | 239.255.255.250:3702 | — | — | — | whitelisted |
1372 | svchost.exe | 199.232.210.172:80 | ctldl.windowsupdate.com | FASTLY | US | unknown |
1372 | svchost.exe | 23.48.23.166:80 | crl.microsoft.com | Akamai International B.V. | DE | unknown |
1372 | svchost.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | unknown |
1060 | svchost.exe | 199.232.214.172:80 | ctldl.windowsupdate.com | FASTLY | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
ctldl.windowsupdate.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |