| File name: | Cortana.exe |
| Full analysis: | https://app.any.run/tasks/171448d3-c956-47ed-8512-e176869cc618 |
| Verdict: | Malicious activity |
| Analysis date: | January 31, 2024, 20:51:33 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | D3FD37594BFE7E39C2A4D5B07CB47FA6 |
| SHA1: | 669C6E0F485B071A9685B72D425ABCAA4A81DDC3 |
| SHA256: | 18224CBB171DDD80103F0DC357B0098C987F3310E1C6BFDA15C35B231C98B194 |
| SSDEEP: | 192:WxFC9NwVa+b5q5EpwJ3zlM1puG8z7a66u+38wnc:cFtE8OEpuji1puG8S66u+38wn |
MALICIOUS
Drops the executable file immediately after the start
- Cortana.exe (PID: 752)
Starts NET.EXE to view/add/change user profiles
- cmd.exe (PID: 3968)
- net.exe (PID: 3688)
- net.exe (PID: 1812)
- cmd.exe (PID: 3868)
Connects to the CnC server
- Cortana.exe (PID: 3420)
SUSPICIOUS
Reads the Internet Settings
- Cortana.exe (PID: 3420)
Starts CMD.EXE for commands execution
- Cortana.exe (PID: 3420)
INFO
Reads the computer name
- Cortana.exe (PID: 752)
- Cortana.exe (PID: 3420)
- Cortana.exe (PID: 3148)
Checks supported languages
- Cortana.exe (PID: 752)
- Cortana.exe (PID: 3420)
- Cortana.exe (PID: 3148)
Reads the machine GUID from the registry
- Cortana.exe (PID: 752)
- Cortana.exe (PID: 3420)
- Cortana.exe (PID: 3148)
Reads Environment values
- Cortana.exe (PID: 752)
- Cortana.exe (PID: 3420)
- Cortana.exe (PID: 3148)
Manual execution by a user
- explorer.exe (PID: 3244)
- Cortana.exe (PID: 3420)
- Cortana.exe (PID: 3148)
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: | 2105:11:20 23:41:15+01:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 6656 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3916 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows command line |
| 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: | Sprachrecognition Service |
| CompanyName: | CyberCyberCyber |
| FileDescription: | Sprachrecognition Service |
| FileVersion: | 1.0.0.0 |
| InternalName: | Cortana.exe |
| LegalCopyright: | © CyberCyberCyber Corporation. Alle Rechte vorbehalten. |
| LegalTrademarks: | CyberCyberCyber Corporation |
| OriginalFileName: | Cortana.exe |
| ProductName: | Sprachrecognition Service |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
57
Monitored processes
10
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 752 | "C:\Users\admin\AppData\Local\Temp\Cortana.exe" | C:\Users\admin\AppData\Local\Temp\Cortana.exe | explorer.exe | ||||||||||||
User: admin Company: CyberCyberCyber Integrity Level: MEDIUM Description: Sprachrecognition Service Exit code: 3762504530 Version: 1.0.0.0 Modules
| |||||||||||||||
| 1812 | net user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\net.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3148 | "C:\Users\admin\AppData\Local\Temp\Cortana.exe" | C:\Users\admin\AppData\Local\Temp\Cortana.exe | explorer.exe | ||||||||||||
User: admin Company: CyberCyberCyber Integrity Level: HIGH Description: Sprachrecognition Service Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3244 | "C:\Windows\explorer.exe" | C:\Windows\explorer.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Explorer Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3420 | "C:\Users\admin\AppData\Local\Temp\Cortana.exe" | C:\Users\admin\AppData\Local\Temp\Cortana.exe | explorer.exe | ||||||||||||
User: admin Company: CyberCyberCyber Integrity Level: HIGH Description: Sprachrecognition Service Exit code: 3221225786 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3688 | net user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\net.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 1 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3868 | "cmd.exe" cmd /c net user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\cmd.exe | — | Cortana.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 3968 | "cmd.exe" cmd /c net user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\cmd.exe | — | Cortana.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Windows Command Processor Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 4032 | C:\Windows\system32\net1 user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\net1.exe | — | net.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
| 4040 | C:\Windows\system32\net1 user AbcDefGh SecUreP$a!ass! add | C:\Windows\System32\net1.exe | — | net.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Net Command Exit code: 1 Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850) Modules
| |||||||||||||||
Total events
1 005
Read events
1 005
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
2
TCP/UDP connections
6
DNS requests
2
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3420 | Cortana.exe | GET | 200 | 132.226.207.129:80 | http://haxxorterm.ryanlab.cc/command.txt | unknown | text | 38 b | unknown |
3420 | Cortana.exe | GET | 200 | 132.226.207.129:80 | http://haxxorterm.ryanlab.cc/command.txt | unknown | text | 38 b | unknown |
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 |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1080 | svchost.exe | 224.0.0.252:5355 | — | — | — | unknown |
584 | WerFault.exe | 104.208.16.93:443 | watson.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | unknown |
3420 | Cortana.exe | 132.226.207.129:80 | haxxorterm.ryanlab.cc | ORACLE-BMC-31898 | DE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
watson.microsoft.com |
| whitelisted |
haxxorterm.ryanlab.cc |
| unknown |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1080 | svchost.exe | Potentially Bad Traffic | ET DNS Query for .cc TLD |
2 ETPRO signatures available at the full report