Analysis

  • max time kernel
    7s
  • max time network
    13s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-12-2024 20:40

General

  • Target

    Bootstraper.exe

  • Size

    71.0MB

  • MD5

    e82c016015eb049019b94fd51ecd6e49

  • SHA1

    bc230a8342944ddb28007baa2bd29cb07b29294e

  • SHA256

    af5852b2f7312ac76fcd4ec798b8aacf7a5338b329664d2a79a6f31619230828

  • SHA512

    4faa37bf5cebc40469379671e6fe88344fcc9df54ac99d7ec179f04aeaa5d805d0a935b43d79747542cfc329e1f1e78d95cbe6db9235f994cc0fdfbb6e156b98

  • SSDEEP

    393216:Hqc1qcLg6WDV34gkpyfVEHqy2I6Sug+FIOMWg6SvbMK1UO9mBX2GWjNYi1M:Kc1qcLgtDV3fq235ghiSjMKny2GWBM

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • GoLang User-Agent 4 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bootstraper.exe
    "C:\Users\Admin\AppData\Local\Temp\Bootstraper.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:4820
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -Command "Add-MpPreference -ExclusionPath \"C:\ProgramData\";" powershell -Command "Add-MpPreference -ExclusionPath \"C:\Users\Admin\AppData\Local\Temp\Bootstraper.exe\""
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\Bootstraper.exe
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1268
    • C:\Windows\System32\Wbem\wmic.exe
      wmic csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    2e907f77659a6601fcc408274894da2e

    SHA1

    9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

    SHA256

    385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

    SHA512

    34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_x4sq1guu.ilq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2776-0-0x00007FFF6B1D3000-0x00007FFF6B1D5000-memory.dmp

    Filesize

    8KB

  • memory/2776-5-0x0000022D75C80000-0x0000022D75CA2000-memory.dmp

    Filesize

    136KB

  • memory/2776-11-0x00007FFF6B1D0000-0x00007FFF6BC91000-memory.dmp

    Filesize

    10.8MB

  • memory/2776-12-0x00007FFF6B1D0000-0x00007FFF6BC91000-memory.dmp

    Filesize

    10.8MB

  • memory/2776-27-0x00007FFF6B1D0000-0x00007FFF6BC91000-memory.dmp

    Filesize

    10.8MB