| File name: | Document.exe |
| Full analysis: | https://app.any.run/tasks/4615d075-cc4f-4ce1-b979-93ef7a981d9e |
| Verdict: | Malicious activity |
| Threats: | A keylogger is a type of spyware that infects a system and has the ability to record every keystroke made on the device. This lets attackers collect personal information of victims, which may include their online banking credentials, as well as personal conversations. The most widespread vector of attack leading to a keylogger infection begins with a phishing email or link. Keylogging is also often present in remote access trojans as part of an extended set of malicious tools. |
| Analysis date: | August 13, 2024, 14:23:21 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | CBAF46FB06C23350973CF34C975E3CCD |
| SHA1: | DB47C3E07703A3DBF565EFF3135150103A555863 |
| SHA256: | F1F834B50FDEC6530C764E95C55D7A2297C4C9389038EE8B6315570F76EB0D12 |
| SSDEEP: | 6144:7n6QeffPwotrO0rUxprhrgKruPlRp5bh4+6l:j6QeffooQxprhrgKruPlRp5bh4+k |
MALICIOUS
Changes the autorun value in the registry
- Document.exe (PID: 6380)
Scans artifacts that could help determine the target
- RegAsm.exe (PID: 2228)
SNAKEKEYLOGGER has been detected (SURICATA)
- RegAsm.exe (PID: 2228)
Actions looks like stealing of personal data
- RegAsm.exe (PID: 2228)
Steals credentials from Web Browsers
- RegAsm.exe (PID: 2228)
SUSPICIOUS
Drops the executable file immediately after the start
- Document.exe (PID: 6380)
Executable content was dropped or overwritten
- Document.exe (PID: 6380)
Checks for external IP
- svchost.exe (PID: 2256)
- RegAsm.exe (PID: 2228)
Process communicates with Telegram (possibly using it as an attacker's C2 server)
- RegAsm.exe (PID: 2228)
The process verifies whether the antivirus software is installed
- RegAsm.exe (PID: 2228)
INFO
Creates files or folders in the user directory
- Document.exe (PID: 6380)
Reads the computer name
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Disables trace logs
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Reads Environment values
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Checks supported languages
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Checks proxy server information
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Reads the machine GUID from the registry
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Manual execution by a user
- RegAsm.exe (PID: 2228)
.NET Reactor protector has been detected
- Document.exe (PID: 6380)
- RegAsm.exe (PID: 2228)
Reads the software policy settings
- RegAsm.exe (PID: 2228)
Reads Microsoft Office registry keys
- RegAsm.exe (PID: 2228)
Attempting to use instant messaging service
- RegAsm.exe (PID: 2228)
- svchost.exe (PID: 2256)
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.) (62) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (23.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.5) |
| .exe | | | Win32 Executable (generic) (3.8) |
| .exe | | | Win16/32 Executable Delphi generic (1.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:08:12 09:21:31+00:00 |
| ImageFileCharacteristics: | Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 8 |
| CodeSize: | 615424 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x983be |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| 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: | - |
| CompanyName: | - |
| FileDescription: | Oatyinbfho |
| FileVersion: | 1.0.0.0 |
| InternalName: | Oatyinbfho.exe |
| LegalCopyright: | Copyright © 2013 |
| LegalTrademarks: | - |
| OriginalFileName: | Oatyinbfho.exe |
| ProductName: | Oatyinbfho |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
135
Monitored processes
3
Malicious processes
1
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2228 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft .NET Assembly Registration Utility Version: 4.8.9037.0 built by: NET481REL1 Modules
| |||||||||||||||
| 2256 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6380 | "C:\Users\admin\AppData\Local\Temp\Document.exe" | C:\Users\admin\AppData\Local\Temp\Document.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Description: Oatyinbfho Exit code: 4294967295 Version: 1.0.0.0 Modules
| |||||||||||||||
Total events
2 664
Read events
2 634
Write events
30
Delete events
0
Modification events
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (6380) Document.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\Document_RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6380 | Document.exe | C:\Users\admin\AppData\Roaming\uykffgjgnbva.exe | executable | |
MD5:CBAF46FB06C23350973CF34C975E3CCD | SHA256:F1F834B50FDEC6530C764E95C55D7A2297C4C9389038EE8B6315570F76EB0D12 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
16
TCP/UDP connections
44
DNS requests
20
Threats
17
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6380 | Document.exe | GET | 200 | 45.200.149.26:80 | http://doc.kouken-kasei-jp.com/Ptbktfc.mp3 | unknown | — | — | unknown |
5336 | SearchApp.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
4436 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4436 | svchost.exe | GET | 304 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6796 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
6848 | backgroundTaskHost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
2228 | RegAsm.exe | GET | 200 | 132.226.247.73:80 | http://checkip.dyndns.org/ | unknown | — | — | malicious |
2228 | RegAsm.exe | GET | 200 | 132.226.247.73:80 | http://checkip.dyndns.org/ | unknown | — | — | malicious |
2228 | RegAsm.exe | GET | 200 | 132.226.247.73:80 | http://checkip.dyndns.org/ | unknown | — | — | malicious |
2228 | RegAsm.exe | GET | 200 | 132.226.247.73:80 | http://checkip.dyndns.org/ | unknown | — | — | malicious |
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 | 192.168.100.255:138 | — | — | — | whitelisted |
3888 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
1248 | RUXIMICS.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
2120 | MoUsoCoreWorker.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
5060 | svchost.exe | 51.124.78.146:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6380 | Document.exe | 45.200.149.26:80 | doc.kouken-kasei-jp.com | MULTA-ASN1 | HK | unknown |
5060 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
5336 | SearchApp.exe | 2.16.110.145:443 | www.bing.com | Akamai International B.V. | DE | unknown |
5336 | SearchApp.exe | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
4436 | svchost.exe | 20.190.159.23:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
doc.kouken-kasei-jp.com |
| unknown |
settings-win.data.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
login.live.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
th.bing.com |
| whitelisted |
fd.api.iris.microsoft.com |
| whitelisted |
arc.msn.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2256 | svchost.exe | Device Retrieving External IP Address Detected | ET INFO External IP Lookup Domain in DNS Query (checkip .dyndns .org) |
2256 | svchost.exe | Misc activity | ET INFO External IP Address Lookup Domain in DNS Lookup (reallyfreegeoip .org) |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |
2228 | RegAsm.exe | Misc activity | ET INFO External IP Lookup Service Domain (reallyfreegeoip .org) in TLS SNI |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET INFO 404/Snake/Matiex Keylogger Style External IP Check |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |
2228 | RegAsm.exe | Device Retrieving External IP Address Detected | ET POLICY External IP Lookup - checkip.dyndns.org |