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Analysis Report infoS-COVID.vbs

Overview

General Information

Sample Name:infoS-COVID.vbs
Analysis ID:285018
MD5:abd8de63b5a791479d951fec0f9a2a54
SHA1:6deff263ceb7822765e417f461e7322df744fb82
SHA256:fe541bbe9997c5a52517f138ed8c451f3e3561adf841f19874d10239beac2e97

Most interesting Screenshot:

Detection

Score:52
Range:0 - 100
Whitelisted:false
Confidence:100%

Signatures

Multi AV Scanner detection for submitted file
Found potential dummy code loops (likely to delay analysis)
Abnormal high CPU Usage
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)

Classification

Startup

  • System is w10x64
  • wscript.exe (PID: 6736 cmdline: C:\Windows\System32\wscript.exe 'C:\Users\user\Desktop\infoS-COVID.vbs' MD5: 9A68ADD12EB50DDE7586782C3EB9FF9C)
  • cleanup

Malware Configuration

No configs have been found

Yara Overview

No yara matches

Sigma Overview

No Sigma rule has matched

Signature Overview

Click to jump to signature section

Show All Signature Results

AV Detection:

barindex
Multi AV Scanner detection for submitted fileShow sources
Source: infoS-COVID.vbsVirustotal: Detection: 12%Perma Link
Source: C:\Windows\System32\wscript.exeProcess Stats: CPU usage > 98%
Source: infoS-COVID.vbsInitial sample: Strings found which are bigger than 50
Source: classification engineClassification label: mal52.evad.winVBS@1/0@0/0
Source: unknownProcess created: C:\Windows\System32\wscript.exe C:\Windows\System32\wscript.exe 'C:\Users\user\Desktop\infoS-COVID.vbs'
Source: C:\Windows\System32\wscript.exeKey opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Source: infoS-COVID.vbsVirustotal: Detection: 12%
Source: C:\Windows\System32\wscript.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11cf-A4B0-00AA004A55E8}\InprocServer32Jump to behavior
Source: infoS-COVID.vbsStatic file information: File size 9817965 > 1048576
Source: C:\Windows\System32\wscript.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\System32\wscript.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\System32\wscript.exeWindow found: window name: WSH-TimerJump to behavior
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected

Anti Debugging:

barindex
Found potential dummy code loops (likely to delay analysis)Show sources
Source: C:\Windows\System32\wscript.exeProcess Stats: CPU usage > 90% for more than 60s
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Source: C:\Windows\System32\wscript.exeKey value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography MachineGuidJump to behavior

Mitre Att&ck Matrix

Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
Valid AccountsScripting21Path InterceptionPath InterceptionVirtualization/Sandbox Evasion11OS Credential DumpingSecurity Software Discovery1Remote ServicesData from Local SystemExfiltration Over Other Network MediumData ObfuscationEavesdrop on Insecure Network CommunicationRemotely Track Device Without AuthorizationModify System Partition
Default AccountsScheduled Task/JobBoot or Logon Initialization ScriptsBoot or Logon Initialization ScriptsScripting21LSASS MemoryVirtualization/Sandbox Evasion11Remote Desktop ProtocolData from Removable MediaExfiltration Over BluetoothJunk DataExploit SS7 to Redirect Phone Calls/SMSRemotely Wipe Data Without AuthorizationDevice Lockout
Domain AccountsAt (Linux)Logon Script (Windows)Logon Script (Windows)Obfuscated Files or Information1Security Account ManagerSystem Information Discovery2SMB/Windows Admin SharesData from Network Shared DriveAutomated ExfiltrationSteganographyExploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data

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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.