Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/09/2026, 12:10

General

  • Target
    FEDEX-MR-26-093026-TS-DOC_M10-M26_GENERAL.js
  • Size 434KB
  • Sample260930-pb5j5stycs
  • SHA256 47628bf5d571084ccd174e03c02efb2e2211b69d88a12445829344b1cdeea945
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Process spawned unexpected child process 1 IoCs

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

  • Badlisted process makes network request 2 IoCs

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

  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 TTPs 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • 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 2 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\FEDEX-MR-26-093026-TS-DOC_M10-M26_GENERAL.js
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Reads the TCP/IP host and domain name from the registry
    PID:3004
  • C:\Windows\system32\cmd.exe
    cmd.exe /c echo ^%Frysediske^% | %Tiltnktes% -
    1⤵
    • Process spawned unexpected child process
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4932
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo %Frysediske% "
      2⤵
        PID:4328
      • \??\c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe
        "c:\windows\syswow64\WindowsPowerShell\v1.0\powershell.exe" -
        2⤵
        • Badlisted process makes network request
        • Enumerates connected drives
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1244
        • C:\Windows\SysWOW64\backgroundtaskhost.exe
          "C:\Windows\SysWOW64\backgroundtaskhost.exe"
          3⤵
            PID:5064
          • C:\Windows\SysWOW64\backgroundtaskhost.exe
            "C:\Windows\SysWOW64\backgroundtaskhost.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            PID:2120

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            __PSScriptPolicyTest_ttpkdyjv.ot3.ps1

            • Path C:\Windows\__PSScriptPolicyTest_ttpkdyjv.ot3.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512 TLSH

            memory/1244-22-0x0000000006C70000-0x0000000006C8A000-memory.dmp

            memory/1244-33-0x0000000009160000-0x0000000009F0B000-memory.dmp

            memory/1244-7-0x00000000057E0000-0x0000000005E08000-memory.dmp

            memory/1244-8-0x0000000005740000-0x0000000005762000-memory.dmp

            memory/1244-9-0x0000000006040000-0x00000000060A6000-memory.dmp

            memory/1244-10-0x00000000060B0000-0x0000000006116000-memory.dmp

            memory/1244-11-0x0000000006120000-0x0000000006474000-memory.dmp

            memory/1244-5-0x0000000002E20000-0x0000000002E56000-memory.dmp

            memory/1244-19-0x0000000006720000-0x000000000673E000-memory.dmp

            memory/1244-20-0x00000000067B0000-0x00000000067FC000-memory.dmp

            memory/1244-21-0x0000000007F80000-0x00000000085FA000-memory.dmp

            memory/1244-4-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-6-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-25-0x0000000008BB0000-0x0000000009154000-memory.dmp

            memory/1244-23-0x00000000079A0000-0x0000000007A36000-memory.dmp

            memory/1244-26-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-27-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-28-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-29-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-32-0x0000000007F60000-0x0000000007F63000-memory.dmp

            memory/1244-31-0x0000000002DA0000-0x0000000002DB0000-memory.dmp

            memory/1244-24-0x0000000007930000-0x0000000007952000-memory.dmp

            memory/1244-34-0x0000000009160000-0x0000000009F0B000-memory.dmp

            memory/1244-35-0x0000000007F60000-0x0000000007F63000-memory.dmp

            memory/1244-36-0x0000000009160000-0x0000000009F0B000-memory.dmp