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Analysis Report

Overview

General Information

Analysis ID:383344
Infos:

Most interesting Screenshot:

Detection

Score:2
Range:0 - 100
Whitelisted:false
Confidence:60%

Signatures

Creates a process in suspended mode (likely to inject code)
Found a high number of Window / User specific system calls (may be a loop to detect user behavior)
Queries the volume information (name, serial number etc) of a device
Sample execution stops while process was sleeping (likely an evasion)

Classification

RansomwareSpreadingPhishingBankerTrojan / BotAdwareSpywareExploiterEvaderMinercleansuspiciousmalicious

Analysis Advice

Sample has a GUI, but Joe Sandbox has not found any clickable buttons, likely more UI automation may extend behavior
Sample monitors window changes (e.g. starting applications), analyze the sample with the 'Simulates keyboard and window changes' cookbook



  • System is w10x64
  • cmd.exe (PID: 5724 cmdline: cmd /C 'C:\Windows\System32\fsquirt.exe' MD5: F3BDBE3BB6F734E357235F4D5898582D)
    • conhost.exe (PID: 3508 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: EA777DEEA782E8B4D7C7C33BBF8A4496)
    • fsquirt.exe (PID: 3512 cmdline: C:\Windows\System32\fsquirt.exe MD5: 6FD382C8820FEDBA005DFA0750DB81B1)
  • 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

There are no malicious signatures, click here to show all signatures.

Source: classification engineClassification label: clean2.win@4/0@0/0
Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:3508:120:WilError_01
Source: C:\Windows\SysWOW64\fsquirt.exeKey opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Source: unknownProcess created: C:\Windows\SysWOW64\cmd.exe cmd /C 'C:\Windows\System32\fsquirt.exe'
Source: C:\Windows\SysWOW64\cmd.exeProcess created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\SysWOW64\cmd.exeProcess created: C:\Windows\SysWOW64\fsquirt.exe C:\Windows\System32\fsquirt.exe
Source: C:\Windows\SysWOW64\cmd.exeProcess created: C:\Windows\SysWOW64\fsquirt.exe C:\Windows\System32\fsquirt.exeJump to behavior
Source: C:\Windows\SysWOW64\cmd.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\System32\conhost.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: C:\Windows\SysWOW64\fsquirt.exeWindow / User API: threadDelayed 3796Jump to behavior
Source: C:\Windows\SysWOW64\fsquirt.exeWindow / User API: threadDelayed 6011Jump to behavior
Source: C:\Windows\System32\conhost.exeLast function: Thread delayed
Source: C:\Windows\SysWOW64\cmd.exeProcess created: C:\Windows\SysWOW64\fsquirt.exe C:\Windows\System32\fsquirt.exeJump to behavior
Source: fsquirt.exe, 00000002.00000002.462924684.0000000003980000.00000002.00000001.sdmpBinary or memory string: Program Manager
Source: fsquirt.exe, 00000002.00000002.462924684.0000000003980000.00000002.00000001.sdmpBinary or memory string: Shell_TrayWnd
Source: fsquirt.exe, 00000002.00000002.462924684.0000000003980000.00000002.00000001.sdmpBinary or memory string: Progman
Source: fsquirt.exe, 00000002.00000002.462924684.0000000003980000.00000002.00000001.sdmpBinary or memory string: Progmanlock
Source: C:\Windows\SysWOW64\cmd.exeQueries volume information: C:\ VolumeInformationJump to behavior

Mitre Att&ck Matrix

Initial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionExfiltrationCommand and ControlNetwork EffectsRemote Service EffectsImpact
Valid AccountsWindows Management InstrumentationPath InterceptionProcess Injection12Process Injection12OS Credential DumpingProcess 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 ScriptsRootkitLSASS MemoryApplication Window Discovery1Remote 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 InformationSecurity Account ManagerSystem Information Discovery11SMB/Windows Admin SharesData from Network Shared DriveAutomated ExfiltrationSteganographyExploit SS7 to Track Device LocationObtain Device Cloud BackupsDelete Device Data
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
behaviorgraph top1 process2 2 Behavior Graph ID: 383344 Cookbook: defaultwindowscmdlinecookbook.jbs Startdate: 07/04/2021 Architecture: WINDOWS Score: 2 5 cmd.exe 1 2->5         started        process3 7 conhost.exe 5->7         started        9 fsquirt.exe 5->9         started       

Thumbnails

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

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windows-stand
No Antivirus matches
No Antivirus matches
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
No contacted IP infos

General Information

Joe Sandbox Version:31.0.0 Emerald
Analysis ID:383344
Start date:07.04.2021
Start time:16:53:37
Joe Sandbox Product:CloudBasic
Overall analysis duration:0h 4m 9s
Hypervisor based Inspection enabled:false
Report type:full
Cookbook file name:defaultwindowscmdlinecookbook.jbs
Analysis system description:Windows 10 64 bit v1803 with Office Professional Plus 2016, Chrome 85, IE 11, Adobe Reader DC 19, Java 8 Update 211
Number of analysed new started processes analysed:28
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
  • HDC enabled
  • AMSI enabled
Analysis Mode:default
Analysis stop reason:Timeout
Detection:CLEAN
Classification:clean2.win@4/0@0/0
EGA Information:Failed
HDC Information:Failed
HCA Information:
  • Successful, ratio: 100%
  • Number of executed functions: 0
  • Number of non-executed functions: 0
Cookbook Comments:
  • Adjust boot time
  • Enable AMSI
Warnings:
  • Exclude process from analysis (whitelisted): taskhostw.exe, MpCmdRun.exe, BackgroundTransferHost.exe, backgroundTaskHost.exe, SgrmBroker.exe, conhost.exe, svchost.exe
No simulations
No context
No context
No context
No context
No context
No created / dropped files found

Static File Info

No static file info

Network Behavior

No network behavior found

Code Manipulations

Statistics

CPU Usage

050100s020406080100

Click to jump to process

Memory Usage

050100s0.00102030MB

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Behavior

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System Behavior

Start time:16:54:25
Start date:07/04/2021
Path:C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):true
Commandline:cmd /C 'C:\Windows\System32\fsquirt.exe'
Imagebase:0xbd0000
File size:232960 bytes
MD5 hash:F3BDBE3BB6F734E357235F4D5898582D
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:high
Start time:16:54:25
Start date:07/04/2021
Path:C:\Windows\System32\conhost.exe
Wow64 process (32bit):false
Commandline:C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:0x7ff6b2800000
File size:625664 bytes
MD5 hash:EA777DEEA782E8B4D7C7C33BBF8A4496
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:high
Start time:16:54:26
Start date:07/04/2021
Path:C:\Windows\SysWOW64\fsquirt.exe
Wow64 process (32bit):true
Commandline:C:\Windows\System32\fsquirt.exe
Imagebase:0x8a0000
File size:128512 bytes
MD5 hash:6FD382C8820FEDBA005DFA0750DB81B1
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:low

Disassembly

Code Analysis