Analysis

  • max time kernel
    148s
  • max time network
    149s
  • 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, 14:35

General

  • Target
    a459cc80f8ad88b4e68b4ba073d2a4d7b34ca1072c1201551a09ae8ccd8dd8f6.exe
  • Size 253KB
  • Sample261030-rx47lscy9s
  • SHA256 a459cc80f8ad88b4e68b4ba073d2a4d7b34ca1072c1201551a09ae8ccd8dd8f6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: NetSupport

    NetSupport is a remote access tool sold as a legitimate system administration software.

  • Family: SectopRAT

    SectopRAT also known as Arechclient2 is a remote access trojan first seen in November 2019.

  • Detects SectopRAT aka Arechclient2 1 IoCs
  • Creates a file in the Startup directory 1 TTPs 1 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 14 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a459cc80f8ad88b4e68b4ba073d2a4d7b34ca1072c1201551a09ae8ccd8dd8f6.exe
    "C:\Users\Admin\AppData\Local\Temp\a459cc80f8ad88b4e68b4ba073d2a4d7b34ca1072c1201551a09ae8ccd8dd8f6.exe"
    1⤵
    • Creates a file in the Startup directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3520
    • C:\ProgramData\NexusSoftware\felix1\pythonw.exe
      "C:\ProgramData\NexusSoftware\felix1\pythonw.exe" C:\ProgramData\NexusSoftware\felix1\main.py
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2476
  • C:\PROGRA~3\NEXUSS~1\felix1\pythonw.exe
    C:\PROGRA~3\NEXUSS~1\felix1\pythonw.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    PID:560
  • C:\Users\Admin\AppData\Local\Temp\test2\msedgewebview.exe
    C:\Users\Admin\AppData\Local\Temp\test2\msedgewebview.exe
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3740

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        VCRUNTIME140.dll

        • Path C:\ProgramData\NexusSoftware\felix1\VCRUNTIME140.dll
        • Size 117KB
        • SHA256 052ad6a20d375957e82aa6a3c441ea548d89be0981516ca7eb306e063d5027f4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _ctypes.pyd

        • Path C:\ProgramData\NexusSoftware\felix1\_ctypes.pyd
        • Size 131KB
        • SHA256 75687620596877b0dde462e74ae12140d695b3c78df3c6c099d55717768dde42
        • MD5 SHA1 SHA512 SSDEEP TLSH

        b18bf688-3a56-4026-91c1-91657fe9b2e7.lic

        • Path C:\ProgramData\NexusSoftware\felix1\b18bf688-3a56-4026-91c1-91657fe9b2e7.lic
        • Size 21KB
        • SHA256 66baea87add7c5267e3c0f1723295b5dbd9d0ba00e720dad112777e9d6333546
        • MD5 SHA1 SHA512 SSDEEP TLSH

        fdae2fea-296e-425a-8fdd-9b95c5f06ca5.lic

        • Path C:\ProgramData\NexusSoftware\felix1\fdae2fea-296e-425a-8fdd-9b95c5f06ca5.lic
        • Size 411KB
        • SHA256 90890fb5a062a559bc2b71926ea70aa37c9e1cb4205ed36eae27a530597669db
        • MD5 SHA1 SHA512 SSDEEP TLSH

        libffi-8.dll

        • Path C:\ProgramData\NexusSoftware\felix1\libffi-8.dll
        • Size 38KB
        • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        main.py

        • Path C:\ProgramData\NexusSoftware\felix1\main.py
        • Size 92KB
        • SHA256 2e7d54d83b6379f920aa9602efb4205b90c07321a635ef402d0689d81ad0b805
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __init__.py

        • Path C:\ProgramData\NexusSoftware\felix1\pyarmor_runtime_000000\__init__.py
        • Size 103B
        • SHA256 635147102a3b66570909276fbbe27855f0df8eefbb490efcb146d0816adde940
        • MD5 SHA1 SHA512 TLSH

        pyarmor_runtime.pyd

        • Path C:\ProgramData\NexusSoftware\felix1\pyarmor_runtime_000000\pyarmor_runtime.pyd
        • Size 625KB
        • SHA256 74b1a50785f5e43f807489b49b35c57f604c1b621e8d0572406a84f7f0fb3d6a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python3.DLL

        • Path C:\ProgramData\NexusSoftware\felix1\python3.DLL
        • Size 70KB
        • SHA256 16f109e8411bc08341497c87704b7cf0d22a2678f1e3a7dca416ea7bff995469
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python313._pth

        • Path C:\ProgramData\NexusSoftware\felix1\python313._pth
        • Size 80B
        • SHA256 35ddf94682ff9aa713a8d63557242ad00f3f28fdd39337f02c3bda4c0f791577
        • MD5 SHA1 SHA512 TLSH

        python313.dll

        • Path C:\ProgramData\NexusSoftware\felix1\python313.dll
        • Size 5.8MB
        • SHA256 3a7a6170ea840bf2a2a76d05b687b946fcdc8d0cfedfe159012b38f1e8959a7c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        python313.zip

        • Path C:\ProgramData\NexusSoftware\felix1\python313.zip
        • Size 3.6MB
        • SHA256 080084107afc68721db190b71c2c344a348509687083629b5728f587ef3f8939
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pythonw.exe

        • Path C:\ProgramData\NexusSoftware\felix1\pythonw.exe
        • Size 101KB
        • SHA256 95225ed035643523e8c586c11981e276541dce4949eb35cf8cf5741c824249d4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        __PSScriptPolicyTest_auwbrrlr.2i0.psm1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_auwbrrlr.2i0.psm1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        HTCTL32.DLL

        • Path C:\Users\Admin\AppData\Local\Temp\test2\HTCTL32.DLL
        • Size 320KB
        • SHA256 edfe2b923bfb5d1088de1611401f5c35ece91581e71503a5631647ac51f7d796
        • MD5 SHA1 SHA512 SSDEEP TLSH

        NSM.LIC

        • Path C:\Users\Admin\AppData\Local\Temp\test2\NSM.LIC
        • Size 257B
        • SHA256 ad0d05305fdeb3736c1e8d49c3a6746073d27b4703eb6de6589bdc4aa72d7b54
        • MD5 SHA1 SHA512 TLSH

        PCICL32.dll

        • Path C:\Users\Admin\AppData\Local\Temp\test2\PCICL32.dll
        • Size 3.6MB
        • SHA256 63aa18c32af7144156e7ee2d5ba0fa4f5872a7deb56894f6f96505cbc9afe6f8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        client32.ini

        • Path C:\Users\Admin\AppData\Local\Temp\test2\client32.ini
        • Size 530B
        • SHA256 1eb0157a91331e2c3e5a0d217f48820f6cbeff605206744288e1ad33f17a693a
        • MD5 SHA1 SHA512 TLSH

        msedgewebview.exe

        • Path C:\Users\Admin\AppData\Local\Temp\test2\msedgewebview.exe
        • Size 117KB
        • SHA256 06a0a243811e9c4738a9d413597659ca8d07b00f640b74adc9cb351c179b3268
        • MD5 SHA1 SHA512 SSDEEP TLSH

        msvcr100.dll

        • Path C:\Users\Admin\AppData\Local\Temp\test2\msvcr100.dll
        • Size 755KB
        • SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pcicapi.dll

        • Path C:\Users\Admin\AppData\Local\Temp\test2\pcicapi.dll
        • Size 32KB
        • SHA256 9074fd40ea6a0caa892e6361a6a4e834c2e51e6e98d1ffcda7a9a537594a6917
        • MD5 SHA1 SHA512 SSDEEP TLSH

        pcichek.dll

        • Path C:\Users\Admin\AppData\Local\Temp\test2\pcichek.dll
        • Size 18KB
        • SHA256 313117e723dda6ea3911faacd23f4405003fb651c73de8deff10b9eb5b4a058a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1296-113-0x000002867D180000-0x000002867D1EC000-memory.dmp

        memory/1296-117-0x0000000070180000-0x000000007022B000-memory.dmp

        memory/1296-116-0x000002867DD90000-0x000002867DE06000-memory.dmp

        memory/1296-115-0x000002867DCC0000-0x000002867DD10000-memory.dmp

        memory/1296-114-0x000002867DE90000-0x000002867E052000-memory.dmp

        memory/2476-106-0x000001A834190000-0x000001A8341D8000-memory.dmp

        memory/2476-111-0x000001A834160000-0x000001A83416A000-memory.dmp

        memory/2476-110-0x000001A8341E0000-0x000001A834292000-memory.dmp

        memory/2476-109-0x000001A834170000-0x000001A83418E000-memory.dmp

        memory/2476-105-0x000001A81BA10000-0x000001A81BA32000-memory.dmp