Resubmissions

30/10/2026, 03:52

261030-efcptag13x10

15/10/2026, 06:05

261015-gtcyvavz9n1

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/10/2026, 03:52

General

  • Target
    FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.vhdx
  • Size 14.0MB
  • Sample261030-efcptag13x
  • SHA256 a8e8777346113199e0b2fec681d9f6516baaaa047e009eef2d7f2194099d823d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Process spawned unexpected child process 2 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Suspicious use of SetThreadContext 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Modifies registry class 1 IoCs
  • NTFS ADS 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.vhdx
    1⤵
    • Executes a command shell one-liner
    • Modifies registry class
    PID:5064
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1184
    • C:\Program Files\7-Zip\7zG.exe
      "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\" -an -ai#7zMap29024:254:7zEvent8869
      1⤵
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:4148
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.js"
      1⤵
      • Reads the TCP/IP host and domain name from the registry
      PID:2728
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.js"
      1⤵
      • Reads the TCP/IP host and domain name from the registry
      PID:2880
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\48277.ps1"
      1⤵
      • Process spawned unexpected child process
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
        C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
        2⤵
          PID:4076
      • C:\Windows\system32\wscript.exe
        wscript.exe
        1⤵
          PID:1768
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\97947.ps1"
          1⤵
          • Process spawned unexpected child process
          • Command and Scripting Interpreter: PowerShell
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2732
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
            2⤵
              PID:3012

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                ModuleAnalysisCache

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
                • Size 67KB
                • SHA256 e52cbc6b7db32862413f017d28c07ac7fa2c445958227cc9a5719db38cb27286
                • MD5 SHA1 SHA512 SSDEEP TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 1KB
                • SHA256 beca74fa3ad0f363fcaee93e664ffaa4217c2c3ccc2c3b72ec71833805df3534
                • MD5 SHA1 SHA512 TLSH

                48277.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\48277.ps1
                • Size 3.7MB
                • SHA256 8abb50267566a333880b82117d085a5c3aa816b0b144a1cc9912564bb5e6e4b2
                • MD5 SHA1 SHA512 SSDEEP TLSH

                FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.js

                • Path C:\Users\Admin\AppData\Local\Temp\FUGASA_RFQ_Attachment_Items_List_and_Specifications_for_Quotation_Request_1410-26.xlsx.js
                • Size 2.0MB
                • SHA256 aa56773742d689ec4c789267f6fab7bd2397d15e1014df9da35b706337b1ac5d
                • MD5 SHA1 SHA512 SSDEEP TLSH

                $MFT

                • Path C:\Users\Admin\AppData\Local\Temp\[SYSTEM]\$MFT
                • Size 256KB
                • SHA256 d219bc28e051ff9233e74e6c8d0ff59d83bb7e772fc94cf7394e627319177b44
                • MD5 SHA1 SHA512 SSDEEP TLSH

                __PSScriptPolicyTest_544bfe1v.101.psm1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_544bfe1v.101.psm1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                memory/2832-41-0x0000028EED2D0000-0x0000028EED382000-memory.dmp

                memory/2832-42-0x0000028EECEE0000-0x0000028EECEEA000-memory.dmp

                memory/2832-43-0x0000028EECF20000-0x0000028EECF4A000-memory.dmp

                memory/2832-44-0x0000028EECF20000-0x0000028EECF44000-memory.dmp

                memory/2832-55-0x0000028EECEC0000-0x0000028EECEDA000-memory.dmp

                memory/2832-40-0x0000028EECEC0000-0x0000028EECEDE000-memory.dmp

                memory/2832-59-0x0000028EECEE0000-0x0000028EECEE8000-memory.dmp

                memory/2832-36-0x0000028EECDF0000-0x0000028EECE12000-memory.dmp

                memory/4076-60-0x0000000140000000-0x0000000140095000-memory.dmp