Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/08/2026, 02:29

General

  • Target
    2026-08-18_8af67c62d56a88e166bd842384ecc2c1_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop.exe
  • Size 361KB
  • Sample260819-cyssmsxsdx
  • SHA256 e6aa944fe5fde149b2ec36fe89dbcd61ddf01fa2def0e921b3f6f8981626ef23
  • MD5 SHA1 SHA512 SSDEEP TLSH

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++.

  • 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.

  • Modifies Internet Explorer settings 1 TTPs 29 IoCs
  • 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\2026-08-18_8af67c62d56a88e166bd842384ecc2c1_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-18_8af67c62d56a88e166bd842384ecc2c1_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:1648
    • C:\Temp\qoigbytrljdbvtol.exe
      C:\Temp\qoigbytrljdbvtol.exe run
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:640
    • 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:4724
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4724 CREDAT:17410 /prefetch:2
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:4452
  • C:\Temp\qoigbytrljdbvtol.sys
    C:\Temp\qoigbytrljdbvtol.sys
    1⤵
    • Executes dropped EXE
    PID:4832

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        qoigbytrljdbvtol.exe

        • Path C:\Temp\qoigbytrljdbvtol.exe
        • Size 361KB
        • SHA256 e31901e954337c726949a2062554dcbcd110a622a104abf2d904cd51b0c06615
        • MD5 SHA1 SHA512 SSDEEP TLSH

        qoigbytrljdbvtol.sys

        • Path C:\Temp\qoigbytrljdbvtol.sys
        • Size 293KB
        • SHA256 76e38b2d9861586866fe0bb54e96f32a4f0ce9d914051f3278eff56ef03ce62b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        suggestions[1].en-US

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\2YR08IKJ\suggestions[1].en-US
        • Size 17KB
        • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
        • MD5 SHA1 SHA512 SSDEEP TLSH

        CreateProcess.exe

        • Path C:\temp\CreateProcess.exe
        • Size 3KB
        • SHA256 04e4dcf71ae7631add5b222cbfad637f4d6a6ba1037fd0108767572c865dfc84
        • MD5 SHA1 SHA512 TLSH

        memory/4832-9-0x0000000000010000-0x00000000000AB000-memory.dmp