Windows Analysis Report
basta.js

Overview

General Information

Sample name: basta.js
Analysis ID: 1540521
MD5: a1924b963617f7260162a2d9718a595d
SHA1: a24add067cfc75c4040f6932f256f51c99484792
SHA256: 37b3e0c4cfe10ff072b0e265dca8c77cdf6635948c0fa9bdf428f2558eb58b53
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false
Confidence: 100%

Signatures

JScript performs obfuscated calls to suspicious functions
Sigma detected: WScript or CScript Dropper
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Found WSH timer for Javascript or VBS script (likely evasive script)
Program does not show much activity (idle)
Sigma detected: WSF/JSE/JS/VBA/VBE File Execution Via Cscript/Wscript

Classification

System Summary
barindex
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: classification engine Classification label: mal56.evad.winJS@1/0@0/0
Source: C:\Windows\System32\wscript.exe File read: C:\Users\desktop.ini Jump to behavior
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: jscript.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: iertutil.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: windows.storage.dll Jump to behavior
Source: C:\Windows\System32\wscript.exe Section loaded: propsys.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\{f414c260-6ac0-11cf-b6d1-00aa00bbbb58}\InprocServer32 Jump to behavior
Source: C:\Windows\System32\wscript.exe Automated click: OK
Source: C:\Windows\System32\wscript.exe Automated click: OK

Data Obfuscation
barindex
JScript performs obfuscated calls to suspicious functions
Source: C:\Windows\System32\wscript.exe Anti Malware Scan Interface: CreateTextFile("Z:\syscalls\9137.js.csv");ITextStream.WriteLine(" entry:4 f:");ITextStream.WriteLine(" exec:7 f:");IWshShell3._00000000();ITextStream.WriteLine(" entry:43 o: f:Run a0:%22C%3A%5CUsers%5CPublic%5CDownloads%5Cnode.bat%20C%3A%5CUsers%5CPublic%5CDownloads%5C%22 a1:0 a2:false");IWshShell3.Run("C:\Users\Public\Downloads\node.bat C:\Users\Public\Downloads\", "0", "false")
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
Found WSH timer for Javascript or VBS script (likely evasive script)
Source: C:\Windows\System32\wscript.exe Window found: window name: WSH-Timer Jump to behavior
Program does not show much activity (idle)
Source: all processes Thread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Program does not show much activity (idle)
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
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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
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1540521 Sample: basta.js Startdate: 23/10/2024 Architecture: WINDOWS Score: 56 8 Sigma detected: WScript or CScript Dropper 2->8 5 wscript.exe 1 1 2->5         started        process3 signatures4 10 JScript performs obfuscated calls to suspicious functions 5->10 12 Windows Scripting host queries suspicious COM object (likely to drop second stage) 5->12
⊘No contacted IP infos