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Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    07/09/2024, 03:48

General

  • Target

    weave.exe

  • Size

    3.1MB

  • MD5

    a1b6a96519aaa206ac30aad7088e3242

  • SHA1

    04bf79e8c40f4cda2a4b345ef1467e159bdb0fae

  • SHA256

    7dd55d5932f394089ef875e89fb0c92edfa507ce096715e4928e08a0001079cd

  • SHA512

    430fa2394e0a338f0fdb9efd6ce14ccab6ed4d0367e2ac58becef37a0f78b9d0675a33f6e7234fe76df29b39e7a16cfc097c89b3c78d5224ae669d928b11e086

  • SSDEEP

    98304:dV5Cx40FHvu+ST0sI0aT7qrloC3Y2dSB6rWo4Bud5:FM40FGtAjrT7kloC3Y24ri

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\weave.exe
    "C:\Users\Admin\AppData\Local\Temp\weave.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c powershell -Command "Add-MpPreference -ExclusionPath 'C:\windows\system32'" > NUL 2>&1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "Add-MpPreference -ExclusionPath 'C:\windows\system32'"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1096
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2704

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1096-9-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

      Filesize

      32KB

    • memory/1096-6-0x0000000077AB0000-0x0000000077C59000-memory.dmp

      Filesize

      1.7MB

    • memory/1096-7-0x0000000077AB0000-0x0000000077C59000-memory.dmp

      Filesize

      1.7MB

    • memory/1096-8-0x000000001B770000-0x000000001BA52000-memory.dmp

      Filesize

      2.9MB

    • memory/1096-10-0x0000000077AB0000-0x0000000077C59000-memory.dmp

      Filesize

      1.7MB

    • memory/1096-11-0x0000000077AB0000-0x0000000077C59000-memory.dmp

      Filesize

      1.7MB

    • memory/1096-12-0x0000000077AB0000-0x0000000077C59000-memory.dmp

      Filesize

      1.7MB

    • memory/2756-1-0x0000000077B00000-0x0000000077B02000-memory.dmp

      Filesize

      8KB

    • memory/2756-0-0x000000013F840000-0x00000001400E2000-memory.dmp

      Filesize

      8.6MB

    • memory/2756-13-0x000000013F840000-0x00000001400E2000-memory.dmp

      Filesize

      8.6MB

    • memory/2756-14-0x000000013F840000-0x00000001400E2000-memory.dmp

      Filesize

      8.6MB

    • memory/2756-18-0x000000013F840000-0x00000001400E2000-memory.dmp

      Filesize

      8.6MB

    • memory/2756-25-0x000000013F840000-0x00000001400E2000-memory.dmp

      Filesize

      8.6MB