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Windows Analysis Report
winrm.vbs

Overview

General Information

Sample name:	winrm.vbs
Analysis ID:	1498728
MD5:	85cbf9b1a0e3d8fda14a86535e0692d9
SHA1:	695eaa69c8766e01720dec322064ee968812f264
SHA256:	ad4ac01243a9775d26945cf742a06acb03f34056fee9576d646ff65617bf94f5
Infos:

Detection

Score:	0
Range:	0 - 100
Whitelisted:	true
Confidence:	100%

Signatures

VBScript performs obfuscated calls to suspicious functions

AI detected suspicious sample

Sigma detected: WScript or CScript Dropper

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Found URL in obfuscated visual basic script code

Found WSH timer for Javascript or VBS script (likely evasive script)

Java / VBScript file with very long strings (likely obfuscated code)

Program does not show much activity (idle)

Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Classification

Process Tree

System is w10x64_ra

wscript.exe (PID: 812 cmdline: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs" MD5: A47CBE969EA935BDD3AB568BB126BC80)

cleanup

Sigma Signatures

System Summary

Sigma detected: WScript or CScript Dropper

Source: Process started

Author: Margaritis Dimitrios (idea), Florian Roth (Nextron Systems), oscd.community: Data: Command: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", CommandLine: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", ProcessId: 812, ProcessName: wscript.exe

Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Source: Process started

Author: Michael Haag: Data: Command: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", CommandLine: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", CommandLine|base64offset|contains: , Image: C:\Windows\System32\wscript.exe, NewProcessName: C:\Windows\System32\wscript.exe, OriginalFileName: C:\Windows\System32\wscript.exe, ParentCommandLine: , ParentImage: , ParentProcessId: 4380, ProcessCommandLine: C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs", ProcessId: 812, ProcessName: wscript.exe

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

• AV Detection
• Networking
• System Summary
• Data Obfuscation
• Hooking and other Techniques for Hiding and Protection
• Malware Analysis System Evasion
• Anti Debugging
• Language, Device and Operating System Detection

Click to jump to signature section

Show All Signature Results

AV Detection

AI detected suspicious sample

Source: Submited Sample

Integrated Neural Analysis Model: Matched 96.4% probability

Source: winrm.vbs	Binary string: http://schemas.microsoft.com/wbem/wsman/1/config/service><transport>transport</transport><force/></analyze_input> - obfuscation quality: 4
Source: winrm.vbs	Binary string: http://schemas.microsoft.com/wbem/wsman/1/config/service><transport>transport</transport></analyze_input> - obfuscation quality: 4

System Summary

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Source: C:\Windows\System32\wscript.exe

COM Object queried: Windows Script Host Shell Object HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{72C24DD5-D70A-438B-8A42-98424B88AFB8}

Jump to behavior

Source: winrm.vbs

Initial sample: Strings found which are bigger than 50

Source: classification engine

Classification label: clean60.evad.winVBS@1/0@0/0

Source: unknown

Process created: C:\Windows\System32\wscript.exe C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs"

Source: C:\Windows\System32\wscript.exe

Key opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Windows\System32\wscript.exe	Section loaded: version.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: uxtheme.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: sxs.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: vbscript.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: amsi.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: userenv.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: profapi.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: wldp.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: msasn1.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptsp.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: rsaenh.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: cryptbase.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: msisip.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: wshext.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: scrobj.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: scrrun.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: mpr.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: textshaping.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: textinputframework.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: coreuicomponents.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: coremessaging.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: ntmarta.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: wintypes.dll	Jump to behavior
Source: C:\Windows\System32\wscript.exe	Section loaded: wintypes.dll	Jump to behavior

Source: C:\Windows\System32\wscript.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32

Jump to behavior

Data Obfuscation

VBScript performs obfuscated calls to suspicious functions

Source: C:\Windows\System32\wscript.exe

Anti Malware Scan Interface: CreateObject("WScript.Shell");IWshShell3.RegRead("HKLM\Software\Microsoft\Windows NT\CurrentVersion\CurrentVersion");L_ONLYCSCRIPT_Messag

Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior
Source: C:\Windows\System32\wscript.exe	Process information set: NOOPENFILEERRORBOX			Jump to behavior

Source: C:\Windows\System32\wscript.exe

Window found: window name: WSH-Timer

Jump to behavior

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: all processes

Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Source: C:\Windows\System32\wscript.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuid

Jump to behavior

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	131 Scripting	Valid Accounts	Windows Management Instrumentation	131 Scripting	1 DLL Side-Loading	1 DLL Side-Loading	OS Credential Dumping	2 System Information Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	1 DLL Side-Loading	Boot or Logon Initialization Scripts	1 Obfuscated Files or Information	LSASS Memory	Application Window Discovery	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
winrm.vbs	0%	ReversingLabs
winrm.vbs	2%	Virustotal		Browse

Joe Sandbox version:	40.0.0 Tourmaline
Analysis ID:	1498728
Start date and time:	2024-08-25 22:47:22 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 3m 21s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	defaultwindowsinteractivecookbook.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	13
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	winrm.vbs
Detection:	CLEAN
Classification:	clean60.evad.winVBS@1/0@0/0
EGA Information:	Failed
HCA Information:	Successful, ratio: 100% Number of executed functions: 0 Number of non-executed functions: 0
Cookbook Comments:	Found application associated with file extension: .vbs

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, SIHClient.exe, SgrmBroker.exe, MoUsoCoreWorker.exe, conhost.exe, svchost.exe
Excluded domains from analysis (whitelisted): fs.microsoft.com, slscr.update.microsoft.com, login.live.com, settings-win.data.microsoft.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information

File type:	Unicode text, UTF-8 text, with CRLF line terminators
Entropy (8bit):	5.16860231694857
TrID:	Visual Basic Script (13500/0) 100.00%
File name:	winrm.vbs
File size:	204'074 bytes
MD5:	85cbf9b1a0e3d8fda14a86535e0692d9
SHA1:	695eaa69c8766e01720dec322064ee968812f264
SHA256:	ad4ac01243a9775d26945cf742a06acb03f34056fee9576d646ff65617bf94f5
SHA512:	0eecad4e71e37b7d387938388d30589d7ae737885eb14f83813f85f9b910ac339ba8e37a9418a050ab842e0298142a5061092a261d1cf1b4c0500e6a64e84c52
SSDEEP:	3072:A5yO1lQ014Cet1ns3wflGsZcfwMQA5PGzb8h9:A591lF1UflGsZcfb
TLSH:	02143E9BA1078C3A95B05173B45231269FA007CBE3952428FA6D93DBCB79BC5D0B778C
File Content Preview:	'..' Copyright (c) Microsoft Corporation. All rights reserved...'..' VBScript Source File..'..' Script Name: winrm.vbs..'....Option Explicit....'''''''''''''''''''''..' Error codes..private const ERR_OK = 0..private const ERR_GENERAL_FAILURE

File Icon


Icon Hash:	68d69b8f86ab9a86

• wscript.exe

Click to jump to process

Memory Usage

• wscript.exe

Click to jump to process

High Level Behavior Distribution

• File
• Registry

Click to dive into process behavior distribution

Target ID:	0
Start time:	16:47:52
Start date:	25/08/2024
Path:	C:\Windows\System32\wscript.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\System32\WScript.exe "C:\Users\user\Desktop\winrm.vbs"
Imagebase:	0x7ff615780000
File size:	170'496 bytes
MD5 hash:	A47CBE969EA935BDD3AB568BB126BC80
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	false

Show Windows behavior

Description:	This technique has been deprecated. Please use Command and Scripting Interpreter where appropriate.
Tactics:	Defense Evasion, Execution
Data Sources:
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit. This is common behavior that can be used across different platforms and the network to evade defenses.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Creation, File: File Metadata, Module: Module Load, Process: OS API Execution, Process: Process Creation, Script: Script Execution, WMI: WMI Creation, Windows Registry: Windows Registry Key Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

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Windows Analysis Report winrm.vbs

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

System Summary

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Networking

System Summary

Data Obfuscation

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

Static File Info

General

File Icon

Network Behavior

Statistics

CPU Usage

Memory Usage

High Level Behavior Distribution

back

System Behavior

Analysis Process: wscript.exePID: 812, Parent PID: 4380

General

File Activities

File Opened

File Read

File Attributes Queried

Other File Operations

Volume Information Queried

Device IO

Section Activities

Sections loaded by Windows

Sections loaded by Program

Registry Activities

Key Opened

Key Value Queried

Key Monitored

Key Value Enumerated

Key Enumerated

Windows Analysis Report
winrm.vbs