| File name: | 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif |
| Full analysis: | https://app.any.run/tasks/a72ce5e5-ed86-4ad8-bb2b-9ece66e6798b |
| Verdict: | Malicious activity |
| Threats: | A backdoor is a type of cybersecurity threat that allows attackers to secretly compromise a system and conduct malicious activities, such as stealing data and modifying files. Backdoors can be difficult to detect, as they often use legitimate system applications to evade defense mechanisms. Threat actors often utilize special malware, such as PlugX, to establish backdoors on target devices. |
| Analysis date: | March 24, 2025, 14:12:37 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 5 sections |
| MD5: | F1DE9684445BCD6A9B7CB7924DC6EB86 |
| SHA1: | F584E2687B8D1D11637925BF3181F31A4D78BD91 |
| SHA256: | 60D6BDAE3FF796A056B64D471E23B12684EACAC45883C8B9F5A16651912C27AC |
| SSDEEP: | 98304:589z40zmPxjYrQkVdev+qK73JyBhcX9psmHVsAAA48dcSisdcSiAAA93yrpdAAAE:yQEG |
MALICIOUS
Executing a file with an untrusted certificate
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
FLOXIF mutex has been found
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
SUSPICIOUS
Process drops legitimate windows executable
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Executable content was dropped or overwritten
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Reads security settings of Internet Explorer
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
INFO
Checks supported languages
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Failed to create an executable file in Windows directory
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
The sample compiled with english language support
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Create files in a temporary directory
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Checks proxy server information
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Reads the computer name
- 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe (PID: 1052)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win64 Executable (generic) (76.4) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (12.4) |
| .exe | | | Generic Win/DOS Executable (5.5) |
| .exe | | | DOS Executable Generic (5.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2015:04:09 07:47:39+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 12 |
| CodeSize: | 2512896 |
| InitializedDataSize: | 2528768 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1d1201 |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 35.0.61.54677 |
| ProductVersionNumber: | 35.0.61.54677 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| Comments: | HP Printer Assistant |
| OriginalFileName: | HPUDCApp.exe |
| InternalName: | HP Printer Assistant |
| CompanyName: | Hewlett-Packard Development Company, LP |
| LegalCopyright: | Copyright (C) Hewlett-Packard Co. 2014 |
| LegalTrademarks: | - |
| FileDescription: | HP Printer Assistant |
| FileVersion: | 35.0.61.54677 |
| ProductName: | HP Digital Imaging |
| ProductVersion: | 035.000.061.54677 |
| ProductFamily: | HP Digital Imaging |
| ProductFileFlags: | 1 |
Total processes
128
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1052 | "C:\Users\admin\Desktop\2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe" | C:\Users\admin\Desktop\2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe | explorer.exe | ||||||||||||
User: admin Company: Hewlett-Packard Development Company, LP Integrity Level: MEDIUM Description: HP Printer Assistant Exit code: 0 Version: 35.0.61.54677 Modules
| |||||||||||||||
| 6488 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
3 894
Read events
3 891
Write events
3
Delete events
0
Modification events
| (PID) Process: | (1052) 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (1052) 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (1052) 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
Executable files
1
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1052 | 2025-03-24_f1de9684445bcd6a9b7cb7924dc6eb86_bkransomware_floxif.exe | C:\Users\admin\AppData\Local\Temp\conres.dll | executable | |
MD5:7574CF2C64F35161AB1292E2F532AABF | SHA256:DE055A89DE246E629A8694BDE18AF2B1605E4B9B493C7E4AEF669DD67ACF5085 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
33
TCP/UDP connections
50
DNS requests
15
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 304 | 20.12.23.50:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | unknown | — | — | — |
4120 | SIHClient.exe | GET | 200 | 23.48.23.173:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 23.48.23.173:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut_2010-06-23.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20Update%20Signing%20CA%202.2.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.1.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 23.48.23.173:80 | http://crl.microsoft.com/pki/crl/products/MicTimStaPCA_2010-07-01.crl | unknown | — | — | whitelisted |
4120 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Signing%20CA%202.2.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 20.242.39.171:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | 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 | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 51.104.136.2:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3216 | svchost.exe | 40.113.110.67:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 20.190.160.5:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4040 | backgroundTaskHost.exe | 20.31.169.57:443 | arc.msn.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
4120 | SIHClient.exe | 4.245.163.56:443 | slscr.update.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
4120 | SIHClient.exe | 23.48.23.173:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4120 | SIHClient.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4120 | SIHClient.exe | 52.165.164.15:443 | fe3cr.delivery.mp.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
login.live.com |
| whitelisted |
arc.msn.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
activation-v2.sls.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |