| File name: | febfile.exe |
| Full analysis: | https://app.any.run/tasks/b856d766-b636-432f-a6f3-fc9b2de5ecd7 |
| Verdict: | Malicious activity |
| Threats: | Remcos is a commercially distributed remote administration and surveillance tool that has been widely observed in unauthorized deployments, where threat actors use it to perform remote actions on compromised machines. It is actively maintained by its vendor, with new versions and feature updates released on a frequent, near-monthly basis. |
| Analysis date: | February 17, 2025, 06:06:36 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 7 sections |
| MD5: | C296FD3EC6B13356B1B96809DC5805C8 |
| SHA1: | 0BD080704C2939F64359B40CE89653A000C84978 |
| SHA256: | 994659BE64C87D2E3DE62FCCA61D31DD0B3DC3A3D1A9A6392FCA4D470F44E15E |
| SSDEEP: | 12288:L1eur+yiTgkF444VAw7ge/Q4fR4kunYcWGcK4oZ+RpWVVVVVVVVVVVVVVVVVnL:lrdQ0BunO1oZAps |
MALICIOUS
REMCOS has been detected (YARA)
- febfile.exe (PID: 6368)
SUSPICIOUS
Connects to unusual port
- febfile.exe (PID: 6368)
There is functionality for taking screenshot (YARA)
- febfile.exe (PID: 6368)
INFO
Checks supported languages
- febfile.exe (PID: 6368)
Reads the computer name
- febfile.exe (PID: 6368)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(6368) febfile.exe
C2 (1)highlevelpriority.webredirect.org:45595
BotnetJ9863
Options
Connect_interval1
Install_flagFalse
Install_HKCU\RunTrue
Install_HKLM\RunTrue
Install_HKLM\Explorer\Run1
Setup_path%LOCALAPPDATA%
Copy_fileremcos.exe
Startup_valueRemcos
Hide_fileFalse
Mutex_name68877-QABJJ6
Keylog_flag0
Keylog_path%LOCALAPPDATA%
Keylog_filelogs.dat
Keylog_cryptFalse
Hide_keylogFalse
Screenshot_flagFalse
Screenshot_time5
Take_ScreenshotFalse
Screenshot_path%APPDATA%
Screenshot_fileScreenshots
Screenshot_cryptFalse
Mouse_optionFalse
Delete_fileFalse
Audio_record_time5
Audio_path%ProgramFiles%
Audio_dirMicRecords
Connect_delay0
Copy_dirRemcos
Keylog_dirremcos
Max_keylog_file100000
TRiD
| .exe | | | Win64 Executable (generic) (64.6) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (15.4) |
| .exe | | | Win32 Executable (generic) (10.5) |
| .exe | | | Generic Win/DOS Executable (4.6) |
| .exe | | | DOS Executable Generic (4.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2022:08:20 16:47:03+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14 |
| CodeSize: | 345088 |
| InitializedDataSize: | 134656 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x327a4 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
130
Monitored processes
2
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2192 | 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
| |||||||||||||||
| 6368 | "C:\Users\admin\AppData\Local\Temp\febfile.exe" | C:\Users\admin\AppData\Local\Temp\febfile.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: MEDIUM Modules
Remcos(PID) Process(6368) febfile.exe C2 (1)highlevelpriority.webredirect.org:45595 BotnetJ9863 Options Connect_interval1 Install_flagFalse Install_HKCU\RunTrue Install_HKLM\RunTrue Install_HKLM\Explorer\Run1 Setup_path%LOCALAPPDATA% Copy_fileremcos.exe Startup_valueRemcos Hide_fileFalse Mutex_name68877-QABJJ6 Keylog_flag0 Keylog_path%LOCALAPPDATA% Keylog_filelogs.dat Keylog_cryptFalse Hide_keylogFalse Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreenshots Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path%ProgramFiles% Audio_dirMicRecords Connect_delay0 Copy_dirRemcos Keylog_dirremcos Max_keylog_file100000 | |||||||||||||||
Total events
325
Read events
323
Write events
2
Delete events
0
Modification events
| (PID) Process: | (6368) febfile.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\68877-QABJJ6 |
| Operation: | write | Name: | exepath |
Value: 65A9360EA5644E128F2C5147BEF6C219B8E1209E06EBCD4CA8EDCC413621E972A3D766A79D91DE51A333DDB9153E67531148A52311B37FF05BEE181D256B59ED878BCDFC960D46D31DFFFCE098844623768F9A91F5C9DBFFE368027E | |||
| (PID) Process: | (6368) febfile.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\68877-QABJJ6 |
| Operation: | write | Name: | licence |
Value: 46074CE452E940DF481889BD7D8E0D02 | |||
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
7
TCP/UDP connections
33
DNS requests
19
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 2.16.164.120:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.131.245:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1176 | svchost.exe | GET | 200 | 184.30.131.245:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
628 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
628 | SIHClient.exe | GET | 200 | 2.23.246.101:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
6816 | backgroundTaskHost.exe | GET | 200 | 184.30.131.245:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
5064 | SearchApp.exe | 2.19.122.35:443 | www.bing.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.131.245:80 | ocsp.digicert.com | AKAMAI-AS | US | whitelisted |
— | — | 4.231.128.59:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 2.16.164.120:80 | crl.microsoft.com | Akamai International B.V. | NL | whitelisted |
4712 | MoUsoCoreWorker.exe | 4.231.128.59:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 95.101.149.131:80 | www.microsoft.com | Akamai International B.V. | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
6368 | febfile.exe | 204.10.160.147:45595 | highlevelpriority.webredirect.org | UNREAL-SERVERS | CA | unknown |
3884 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1224 | RUXIMICS.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
www.bing.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
highlevelpriority.webredirect.org |
| unknown |
settings-win.data.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2192 | svchost.exe | Potentially Bad Traffic | ET DYN_DNS DYNAMIC_DNS Query to a *.webredirect .org Domain |