Analysis

  • max time kernel
    28s
  • max time network
    3s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260911-en
  • resource tags

    arch:x64arch:x86image:win11-20260911-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    24/10/2026, 03:27

General

  • Target
    installer.exe
  • Size 7.8MB
  • Sample261024-dz9m8aeb64
  • SHA256 fc04ff34c6ffa4f27dcf462bf161895e40a5b46b006a691a1d8c8ce5c70283a7
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Looks up external IP address via web service 1 TTPs 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\installer.exe
    "C:\Users\Admin\AppData\Local\Temp\installer.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3744
    • C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\7zr.exe
      .\7zr.exe x -aoa -p"DrZ5py$HsJ@tSZkRU$j4&Sv" setup.7z
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3568
    • C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\AutoIt3_x64.exe
      .\AutoIt3_x64.exe setup.dll
      2⤵
      • Executes dropped EXE
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2060
      • C:\Windows\system32\calc.exe
        "C:\Windows\system32\calc.exe"
        3⤵
          PID:2760
    • C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_x64__8wekyb3d8bbwe\Calculator.exe
      "C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.2012.21.0_x64__8wekyb3d8bbwe\Calculator.exe" -ServerName:App.AppXsm3pg4n7er43kdh1qp4e79f1j7am68r8.mca
      1⤵
      • Suspicious use of SetWindowsHookEx
      PID:492
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc
      1⤵
        PID:4248

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            7zr.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\7zr.exe
            • Size 911KB
            • SHA256 9252d92abebb9347a80958d330aa4b47a94a50aa4ceebcbb76839ee4d7a9cecd
            • MD5 SHA1 SHA512 SSDEEP TLSH

            AutoIt3_x64.exe

            • Path C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\AutoIt3_x64.exe
            • Size 1.1MB
            • SHA256 5d69a932a077fee044b193c28e84564143f5c7e51079ab48e88fef74ab0b77b7
            • MD5 SHA1 SHA512 SSDEEP TLSH

            setup.7z

            • Path C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\setup.7z
            • Size 598KB
            • SHA256 a8eb23175b8945023ce7edd09a3b8429565fc746557e2db00aea9b71e3200ded
            • MD5 SHA1 SHA512 SSDEEP TLSH

            setup.dll

            • Path C:\Users\Admin\AppData\Local\Temp\7zS0AE257F8\setup.dll
            • Size 186KB
            • SHA256 e1eaf7e1505894da183edcbdd39e1ca7957be7e050e399cb3b8a19cb6ee2caef
            • MD5 SHA1 SHA512 SSDEEP TLSH

            __PSScriptPolicyTest_lfmi1su0.pm0.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lfmi1su0.pm0.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            memory/2060-18-0x000002374BE70000-0x000002374BE7E000-memory.dmp

            memory/2060-20-0x0000023767A70000-0x0000023767A80000-memory.dmp

            memory/2060-21-0x000002374DD60000-0x000002374DD66000-memory.dmp

            memory/2060-22-0x0000023767A70000-0x0000023767A80000-memory.dmp

            memory/2060-29-0x000002374DE60000-0x000002374DE82000-memory.dmp

            memory/2060-30-0x0000023767A70000-0x0000023767A80000-memory.dmp