Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    04/08/2026, 12:17

General

  • Target
    フリマル_セットアップ.exe
  • Size 2.6MB
  • Sample260804-pgc23szepa
  • SHA256 43ca3f305c0021a797528dc3d7ac4b3e181d5f62cbd9e723b3b7cf0bafd8d0fe
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Powershell Invoke Web Request.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\フリマル_セットアップ.exe
    "C:\Users\Admin\AppData\Local\Temp\フリマル_セットアップ.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4184
    • C:\Windows\SYSTEM32\wscript.exe
      wscript.exe _launch.vbs
      2⤵
      • Checks computer location settings
      • Executes a VBScript file via the Windows Script Host.
      • Suspicious use of WriteProcessMemory
      PID:1452
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "Expand-Archive -Force -LiteralPath 'C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setup.zip' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\furimaru_setup'"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2204
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\furimaru_setup\フリマル_セットアップ\インストール.bat"
        3⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:1436
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:5096
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -NoProfile -Command "try{[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; Invoke-WebRequest -Uri 'https://www.python.org/ftp/python/3.12.7/python-3.12.7-amd64.exe' -OutFile 'C:\Users\Admin\AppData\Local\Temp\furimaru-python-setup.exe'}catch{exit 1}"
            4⤵
            • Badlisted process makes network request
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:416

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
          • Size 3KB
          • SHA256 bda499e3f69d8fe0227e734bbb935dc5bf0050d37adf03bc41356dfcb5bcca0b
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 0796303e0c95ffd59557bd9307f74cdb80235d32a7dcd5eeb11a71c140ea4912
          • MD5 SHA1 SHA512 TLSH

          _launch.vbs

          • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\_launch.vbs
          • Size 715B
          • SHA256 b4fbb4da2aead64fcb9d3ad277620f335531b06aeb24965574f34266da25fbad
          • MD5 SHA1 SHA512 TLSH

          setup.zip

          • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\setup.zip
          • Size 2.5MB
          • SHA256 0bd7da184d3948b1221577c7e2979b37d41968c0c244dc443fb814a7e6fc3e6f
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_i1qb5x4c.5yi.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_i1qb5x4c.5yi.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          インストール.bat

          • Path C:\Users\Admin\AppData\Local\Temp\furimaru_setup\フリマル_セットアップ\インストール.bat
          • Size 1KB
          • SHA256 33467b7694485d933c849791b0d2d3aa645e410abdaaa94bfb1b756c37db132b
          • MD5 SHA1 SHA512 TLSH

          memory/2204-5-0x000002D8E10E0000-0x000002D8E10F0000-memory.dmp

          memory/2204-6-0x000002D8E10E0000-0x000002D8E10F0000-memory.dmp

          memory/2204-7-0x000002D8FB270000-0x000002D8FB292000-memory.dmp

          memory/2204-15-0x000002D8FB600000-0x000002D8FB612000-memory.dmp

          memory/2204-16-0x000002D8FB5E0000-0x000002D8FB5EA000-memory.dmp