| File name: | Trigon.exe |
| Full analysis: | https://app.any.run/tasks/89e62701-9805-455c-b9d0-f5117e3ad33c |
| Verdict: | Malicious activity |
| Threats: | Orcus is a modular Remote Access Trojan with some unusual functions. This RAT enables attackers to create plugins using a custom development library and offers a robust core feature set that makes it one of the most dangerous malicious programs in its class. |
| Analysis date: | March 15, 2019, 02:55:28 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | CAC0D85D9EF315F002F79364536499A6 |
| SHA1: | 46EE464A7A7C2214CECA03C3279894620A8C7599 |
| SHA256: | C8B49531B842EABF31ADACBCE7EF6EF12354579301901B35083C7BBFB1C0FC37 |
| SSDEEP: | 24576:fqbqIvDoSxobnMRAl6s7eFvlI9uXyN0PaQXH02yX5cvKYGLmu6cuqdilx9ZRM1Y1:fqWoo7MOf6vlIsYuX4X9QPeYMC |
MALICIOUS
Orcus was detected
- Regasm.exe (PID: 2484)
- Regasm.exe (PID: 3852)
Loads the Task Scheduler COM API
- schtasks.exe (PID: 3612)
Uses Task Scheduler to run other applications
- Trigon.exe (PID: 2892)
SUSPICIOUS
Starts itself from another location
- Trigon.exe (PID: 2892)
Connects to unusual port
- Regasm.exe (PID: 2484)
Executable content was dropped or overwritten
- Trigon.exe (PID: 2892)
Creates files in the user directory
- Trigon.exe (PID: 2892)
INFO
No info indicators.
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.) (45.1) |
|---|---|---|
| .exe | | | Win32 Executable MS Visual C++ (generic) (19.2) |
| .exe | | | Win64 Executable (generic) (17) |
| .scr | | | Windows screen saver (8) |
| .dll | | | Win32 Dynamic Link Library (generic) (4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2019:03:12 00:17:39+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 1857536 |
| InitializedDataSize: | 2560 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1c77ae |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 4.8.1.6 |
| ProductVersionNumber: | 4.8.1.6 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | lWeCXPyH sYqkNh |
| CompanyName: | coMrPRLNx xxDFV |
| FileDescription: | uVRvU wxBYfW |
| FileVersion: | 4.8.1.6 |
| InternalName: | f.exe |
| LegalCopyright: | CSfJ pDzJsEV |
| LegalTrademarks: | kqeGsa NwUF |
| OriginalFileName: | f.exe |
| ProductName: | KNQZ hQBzH |
| ProductVersion: | 4.8.1.6 |
| AssemblyVersion: | 0.0.0.0 |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 11-Mar-2019 23:17:39 |
| Comments: | lWeCXPyH sYqkNh |
| CompanyName: | coMrPRLNx xxDFV |
| FileDescription: | uVRvU wxBYfW |
| FileVersion: | 4.8.1.6 |
| InternalName: | f.exe |
| LegalCopyright: | CSfJ pDzJsEV |
| LegalTrademarks: | kqeGsa NwUF |
| OriginalFilename: | f.exe |
| ProductName: | KNQZ hQBzH |
| ProductVersion: | 4.8.1.6 |
| Assembly Version: | 0.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 4 |
| Time date stamp: | 11-Mar-2019 23:17:39 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x001C57B4 | 0x001C5800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 6.14211 |
.sdata | 0x001C8000 | 0x000000B1 | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE | 2.17006 |
.rsrc | 0x001CA000 | 0x000005D8 | 0x00000600 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.29475 |
.reloc | 0x001CC000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.10191 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.00112 | 490 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
37
Monitored processes
6
Malicious processes
3
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2484 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | MicrosoftAudioDriver.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
| 2892 | "C:\Users\admin\AppData\Local\Temp\Trigon.exe" | C:\Users\admin\AppData\Local\Temp\Trigon.exe | explorer.exe | ||||||||||||
User: admin Company: coMrPRLNx xxDFV Integrity Level: MEDIUM Description: uVRvU wxBYfW Exit code: 0 Version: 4.8.1.6 Modules
| |||||||||||||||
| 2976 | C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe | C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe | — | taskeng.exe | |||||||||||
User: admin Company: coMrPRLNx xxDFV Integrity Level: MEDIUM Description: uVRvU wxBYfW Exit code: 0 Version: 4.8.1.6 Modules
| |||||||||||||||
| 3032 | "C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe" | C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe | — | Trigon.exe | |||||||||||
User: admin Company: coMrPRLNx xxDFV Integrity Level: MEDIUM Description: uVRvU wxBYfW Exit code: 0 Version: 4.8.1.6 Modules
| |||||||||||||||
| 3612 | schtasks /create /f /sc minute /mo 1 /tn "'Trigon'" /tr "'C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe'" | C:\Windows\system32\schtasks.exe | — | Trigon.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Manages scheduled tasks Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 3852 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\Regasm.exe | MicrosoftAudioDriver.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Exit code: 0 Version: 4.6.1055.0 built by: NETFXREL2 Modules
| |||||||||||||||
Total events
430
Read events
416
Write events
14
Delete events
0
Modification events
| (PID) Process: | (2892) Trigon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 0 | |||
| (PID) Process: | (2892) Trigon.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 1 | |||
| (PID) Process: | (2484) Regasm.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
1
Suspicious files
4
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\CabAC53.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\TarAC54.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\CabAC74.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\TarAC75.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\CabAD32.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\Local\Temp\TarAD33.tmp | — | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015 | binary | |
MD5:— | SHA256:— | |||
| 2484 | Regasm.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015 | compressed | |
MD5:— | SHA256:— | |||
| 2892 | Trigon.exe | C:\Users\admin\AppData\Roaming\MicrosoftAudioDriver.exe | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
2
Threats
5
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2484 | Regasm.exe | GET | 200 | 93.184.221.240:80 | http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab | US | compressed | 55.2 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 |
|---|---|---|---|---|---|---|
2484 | Regasm.exe | 206.189.192.66:1337 | takethei.duckdns.org | — | US | malicious |
2484 | Regasm.exe | 93.184.221.240:80 | www.download.windowsupdate.com | MCI Communications Services, Inc. d/b/a Verizon Business | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
takethei.duckdns.org |
| malicious |
www.download.windowsupdate.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
1056 | svchost.exe | Misc activity | ET INFO DYNAMIC_DNS Query to *.duckdns. Domain |
2484 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Malicious SSL Certificate (Orcus RAT) |
2484 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Malicious SSL Certificate (Orcus RAT) |
2484 | Regasm.exe | A Network Trojan was detected | MALWARE [PTsecurity] Malicious SSL connection (Orcus RAT) |
1 ETPRO signatures available at the full report