Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2024, 02:02

General

  • Target
    8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe
  • Size 208KB
  • Sample241028-cgdbmaxfkb
  • SHA256 8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • 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 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe
    "C:\Users\Admin\AppData\Local\Temp\8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4944
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        login[2].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FGDWJGSY\login[2].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        A417.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\A417.tmp
        • Size 481B
        • SHA256 e37ab97a433dfe75be71f23d541dbf6de595e31b620dc7d71e2aa7287c4407d3
        • MD5 SHA1 SHA512

        A418.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\A418.tmp
        • Size 2KB
        • SHA256 effac0fd60e3b887a888ad7b533e0eb26fa24d9cadb69884d17838637ed3cbd4
        • MD5 SHA1 SHA512

        AEFB.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\AEFB.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 208KB
        • SHA256 0b4660616f6f0d92772cecb86d065adb08a9bb0f3ee944d461ef1701d9bb842a
        • MD5 SHA1 SHA512 SSDEEP

        memory/2028-52-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-50-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-18-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-22-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-21-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-23-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-79-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-78-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-77-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-76-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-75-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-74-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-72-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-71-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-70-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-69-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-68-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-67-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-66-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-65-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-64-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-63-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-62-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-61-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-60-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-59-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-58-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-57-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-55-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-54-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-53-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-14-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/2028-51-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-46-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-15-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/2028-47-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-48-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-45-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-44-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-43-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-42-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-41-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-40-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-38-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-37-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-36-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-35-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-34-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-33-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-32-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-31-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-30-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-27-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-28-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-25-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-26-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-24-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-73-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-56-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-49-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-39-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-29-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/2028-16-0x0000000002A00000-0x0000000002AA8000-memory.dmp

        memory/2028-17-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/4944-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4944-0-0x00000000005D0000-0x00000000005D3000-memory.dmp

        memory/4944-13-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4944-12-0x00000000005D0000-0x00000000005D3000-memory.dmp

        memory/4944-11-0x0000000000400000-0x0000000000467000-memory.dmp