Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 01:00

General

  • Target
    8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe
  • Size 196KB
  • Sample241031-bc2b8axjfj
  • SHA256 8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93b
  • 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 Program Files directory 34 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe
    "C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4184

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        gahyqah.com

        • Path C:\Program Files (x86)\Windows Defender\gahyqah.com
        • Size 24KB
        • SHA256 e9bc73616aeb4d3ed733a2d7ffc1684b88b05e961414a30499ef112e2be5d09b
        • MD5 SHA1 SHA512 SSDEEP

        galyqaz.com

        • Path C:\Program Files (x86)\Windows Defender\galyqaz.com
        • Size 42KB
        • SHA256 1edc6d2e96f7a6de965f3c35575ad539d57e00b605ccefcb9fa894b220a44cfc
        • MD5 SHA1 SHA512 SSDEEP

        puzylyp.com

        • Path C:\Program Files (x86)\Windows Defender\puzylyp.com
        • Size 60KB
        • SHA256 bcf7122d25f39a1a2030f9671f52c69610e18676e523675496399bd420f9d0fe
        • MD5 SHA1 SHA512 SSDEEP

        qetyhyg.com

        • Path C:\Program Files (x86)\Windows Defender\qetyhyg.com
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        qexyhuv.com

        • Path C:\Program Files (x86)\Windows Defender\qexyhuv.com
        • Size 114B
        • SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
        • MD5 SHA1 SHA512

        qexyhuv.com

        • Path C:\Program Files (x86)\Windows Defender\qexyhuv.com
        • Size 114B
        • SHA256 e0d020ba1cb6506cee234903a44c747ee0cfa7e2d1e60029e4cd8de9a431512a
        • MD5 SHA1 SHA512

        login[3].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\login[3].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 196KB
        • SHA256 2720af3539e0c12ab1c868c810fe8fe39f78c00345551948c53db51fd18014dd
        • MD5 SHA1 SHA512 SSDEEP

        memory/4184-50-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-43-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-22-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-74-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-79-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-78-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-77-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-76-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-75-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-73-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-71-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-70-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-68-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-67-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-66-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-65-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-64-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-63-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-62-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-61-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-60-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-59-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-57-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-56-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-55-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-54-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-53-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-52-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-51-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-20-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-49-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-48-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-47-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-45-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-44-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-24-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-42-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-41-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-40-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-39-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-38-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-37-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-36-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-34-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-33-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-32-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-31-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-30-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-29-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-28-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-26-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-25-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-72-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-69-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-58-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-46-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-35-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-27-0x0000000002BB0000-0x0000000002C62000-memory.dmp

        memory/4184-19-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4184-14-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4184-16-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4184-17-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4184-18-0x0000000002A00000-0x0000000002AA4000-memory.dmp

        memory/4472-0-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/4472-1-0x00000000021E0000-0x000000000222F000-memory.dmp

        memory/4472-2-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4472-13-0x00000000021E0000-0x000000000222F000-memory.dmp

        memory/4472-15-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/4472-11-0x0000000000400000-0x000000000048A000-memory.dmp