| File name: | stumble-guys-V2-X64.exe |
| Full analysis: | https://app.any.run/tasks/5ff928f8-2a76-410a-ba9c-200b12a40cad |
| 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: | May 25, 2022, 20:43:45 |
| 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: | E1CA34E1D69ED3C0075E0A056803B20C |
| SHA1: | 15960037A78B6202F74DADFB567328CA9038C76C |
| SHA256: | 202819E866EACA201D1F2914F61E00AE4B7F3DB9E637B6F4316F63D601279EAB |
| SSDEEP: | 12288:qGd4qIuUY0lW/+0d7dG1lFlWcYT70pxnnaaoawZlBa2Ley+trZNrI0AilFEvxHv0:2qd4MROxnFkay6rZlI0AilFEvxHiiC |
MALICIOUS
ORCUS was detected
- stumble-guys-V2-X64.exe (PID: 2564)
- stumble-guys-V2-X64.exe (PID: 3932)
- Orcus.exe (PID: 3264)
Starts Visual C# compiler
- stumble-guys-V2-X64.exe (PID: 2564)
- stumble-guys-V2-X64.exe (PID: 3932)
Drops executable file immediately after starts
- csc.exe (PID: 3760)
- csc.exe (PID: 1168)
- stumble-guys-V2-X64.exe (PID: 3932)
SUSPICIOUS
Checks supported languages
- csc.exe (PID: 3760)
- cvtres.exe (PID: 3120)
- stumble-guys-V2-X64.exe (PID: 2564)
- csc.exe (PID: 1168)
- stumble-guys-V2-X64.exe (PID: 3932)
- cvtres.exe (PID: 2160)
- Orcus.exe (PID: 3264)
Executable content was dropped or overwritten
- csc.exe (PID: 3760)
- csc.exe (PID: 1168)
- stumble-guys-V2-X64.exe (PID: 3932)
Reads the computer name
- stumble-guys-V2-X64.exe (PID: 2564)
- stumble-guys-V2-X64.exe (PID: 3932)
- Orcus.exe (PID: 3264)
Drops a file with a compile date too recent
- csc.exe (PID: 3760)
- csc.exe (PID: 1168)
- stumble-guys-V2-X64.exe (PID: 3932)
Application launched itself
- stumble-guys-V2-X64.exe (PID: 2564)
Starts itself from another location
- stumble-guys-V2-X64.exe (PID: 3932)
Creates a directory in Program Files
- stumble-guys-V2-X64.exe (PID: 3932)
Reads Environment values
- Orcus.exe (PID: 3264)
Creates files in the program directory
- stumble-guys-V2-X64.exe (PID: 3932)
INFO
Reads settings of System Certificates
- Orcus.exe (PID: 3264)
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.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| AssemblyVersion: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| ProductName: | - |
| OriginalFileName: | Orcus.exe |
| LegalTrademarks: | - |
| LegalCopyright: | - |
| InternalName: | Orcus.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | - |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xe297e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 4608 |
| CodeSize: | 920064 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2022:05:25 22:40:48+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 25-May-2022 20:40:48 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Orcus.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | Orcus.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
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: | 3 |
| Time date stamp: | 25-May-2022 20:40:48 |
| 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 | 0x000E0984 | 0x000E0A00 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 7.14931 |
.rsrc | 0x000E4000 | 0x00001000 | 0x00001000 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.99491 |
.reloc | 0x000E6000 | 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 | 4.99793 | 3128 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
45
Monitored processes
7
Malicious processes
3
Suspicious processes
2
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1168 | "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\tdcgjldh.cmdline" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe | stumble-guys-V2-X64.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Visual C# Command Line Compiler Exit code: 0 Version: 8.0.50727.5483 (Win7SP1GDR.050727-5400) Modules
| |||||||||||||||
| 2160 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES6EA0.tmp" "c:\Users\admin\AppData\Local\Temp\CSC6E9F.tmp" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe | — | csc.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Microsoft® Resource File To COFF Object Conversion Utility Exit code: 0 Version: 8.00.50727.5003 (Win7SP1GDR.050727-5400) Modules
| |||||||||||||||
| 2564 | "C:\Users\admin\AppData\Local\Temp\stumble-guys-V2-X64.exe" | C:\Users\admin\AppData\Local\Temp\stumble-guys-V2-X64.exe | Explorer.EXE | ||||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3120 | C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES66A1.tmp" "c:\Users\admin\AppData\Local\Temp\CSC66A0.tmp" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe | — | csc.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft® Resource File To COFF Object Conversion Utility Exit code: 0 Version: 8.00.50727.5003 (Win7SP1GDR.050727-5400) Modules
| |||||||||||||||
| 3264 | "C:\Program Files\Orcus\Orcus.exe" | C:\Program Files\Orcus\Orcus.exe | stumble-guys-V2-X64.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 3760 | "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\admin\AppData\Local\Temp\jrw-skcu.cmdline" | C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe | stumble-guys-V2-X64.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Visual C# Command Line Compiler Exit code: 0 Version: 8.0.50727.5483 (Win7SP1GDR.050727-5400) Modules
| |||||||||||||||
| 3932 | "C:\Users\admin\AppData\Local\Temp\stumble-guys-V2-X64.exe" /wait | C:\Users\admin\AppData\Local\Temp\stumble-guys-V2-X64.exe | stumble-guys-V2-X64.exe | ||||||||||||
User: admin Integrity Level: HIGH Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
Total events
5 738
Read events
5 708
Write events
30
Delete events
0
Modification events
| (PID) Process: | (2564) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (2564) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (2564) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (2564) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3932) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | ProxyBypass |
Value: 1 | |||
| (PID) Process: | (3932) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | IntranetName |
Value: 1 | |||
| (PID) Process: | (3932) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | UNCAsIntranet |
Value: 1 | |||
| (PID) Process: | (3932) stumble-guys-V2-X64.exe | Key: | HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap |
| Operation: | write | Name: | AutoDetect |
Value: 0 | |||
| (PID) Process: | (3264) Orcus.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
3
Suspicious files
3
Text files
7
Unknown types
5
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3932 | stumble-guys-V2-X64.exe | C:\Users\admin\AppData\Local\Temp\tdcgjldh.0.cs | text | |
MD5:— | SHA256:— | |||
| 3120 | cvtres.exe | C:\Users\admin\AppData\Local\Temp\RES66A1.tmp | o | |
MD5:— | SHA256:— | |||
| 2564 | stumble-guys-V2-X64.exe | C:\Users\admin\AppData\Local\Temp\jrw-skcu.cmdline | text | |
MD5:— | SHA256:— | |||
| 3760 | csc.exe | C:\Users\admin\AppData\Local\Temp\CSC66A0.tmp | res | |
MD5:— | SHA256:— | |||
| 3760 | csc.exe | C:\Users\admin\AppData\Local\Temp\jrw-skcu.dll | executable | |
MD5:— | SHA256:— | |||
| 1168 | csc.exe | C:\Users\admin\AppData\Local\Temp\CSC6E9F.tmp | res | |
MD5:— | SHA256:— | |||
| 3932 | stumble-guys-V2-X64.exe | C:\Users\admin\AppData\Local\Temp\tdcgjldh.cmdline | text | |
MD5:— | SHA256:— | |||
| 2564 | stumble-guys-V2-X64.exe | C:\Users\admin\AppData\Local\Temp\jrw-skcu.0.cs | text | |
MD5:— | SHA256:— | |||
| 3760 | csc.exe | C:\Users\admin\AppData\Local\Temp\jrw-skcu.out | text | |
MD5:— | SHA256:— | |||
| 2160 | cvtres.exe | C:\Users\admin\AppData\Local\Temp\RES6EA0.tmp | o | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
7
DNS requests
1
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3264 | Orcus.exe | GET | 200 | 67.27.159.254:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?84e6587f65ce6124 | US | compressed | 60.0 Kb | whitelisted |
3264 | Orcus.exe | GET | 200 | 67.27.159.254:80 | http://ctldl.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootstl.cab?7e00238ab3076f4e | US | compressed | 60.0 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 |
|---|---|---|---|---|---|---|
— | — | 192.168.100.46:57055 | — | — | — | malicious |
— | — | 192.168.100.46:60673 | — | — | — | malicious |
— | — | 192.168.100.46:56500 | — | — | — | malicious |
3264 | Orcus.exe | 83.54.18.50:10134 | — | Telefonica De Espana | ES | malicious |
3264 | Orcus.exe | 67.27.158.126:80 | ctldl.windowsupdate.com | Level 3 Communications, Inc. | US | malicious |
3264 | Orcus.exe | 67.27.159.254:80 | ctldl.windowsupdate.com | Level 3 Communications, Inc. | US | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
ctldl.windowsupdate.com |
| whitelisted |
Threats
1 ETPRO signatures available at the full report