Analysis

  • max time kernel
    111s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/01/2025, 01:01

General

  • Target
    6fed3ad0ae75cde3fb269a8d09057871997f292a6628687a2fd331c640d52320.exe
  • Size 208KB
  • Sample250113-bc8rasxqdv
  • SHA256 6fed3ad0ae75cde3fb269a8d09057871997f292a6628687a2fd331c640d52320
  • 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\6fed3ad0ae75cde3fb269a8d09057871997f292a6628687a2fd331c640d52320.exe
    "C:\Users\Admin\AppData\Local\Temp\6fed3ad0ae75cde3fb269a8d09057871997f292a6628687a2fd331c640d52320.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:3000
    • 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:4268

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        ABFF.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\ABFF.tmp
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        ABFF.tmp

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

        BAE8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\BAE8.tmp
        • Size 61KB
        • SHA256 13e5d30bc5b23c0d0ace8edc405520ef7f4f94cfa19072bb315e977be92ad5d5
        • MD5 SHA1 SHA512 SSDEEP

        BB5C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\BB5C.tmp
        • Size 42KB
        • SHA256 4c0dbd51f3e5dd9b120055aabcf9d009a459d4ac28ad67779ade7c98e323a05e
        • MD5 SHA1 SHA512 SSDEEP

        BB5C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\BB5C.tmp
        • Size 42KB
        • SHA256 6cdeb5affdd042a5cfa7d47de2ba41b7192df8ff6b9985fbd21499bedb3b875e
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 208KB
        • SHA256 3c363691183bfdebb700a6695042f572e1a5ac37a961fcedf20dd7ea22839f29
        • MD5 SHA1 SHA512 SSDEEP

        memory/3000-0-0x0000000000610000-0x0000000000613000-memory.dmp

        memory/3000-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3000-10-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/3000-13-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3000-12-0x0000000000610000-0x0000000000613000-memory.dmp

        memory/4268-59-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-52-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-17-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/4268-20-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-22-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-18-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-34-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-37-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-79-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-78-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-76-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-75-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-74-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-72-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-71-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-69-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-68-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-67-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-66-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-65-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-64-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-63-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-62-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-61-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-60-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-15-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/4268-58-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-57-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-56-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-55-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-53-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-16-0x0000000002A00000-0x0000000002AA8000-memory.dmp

        memory/4268-51-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-50-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-49-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-47-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-45-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-44-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-43-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-42-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-41-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-40-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-38-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-35-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-33-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-32-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-30-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-28-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-29-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-27-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-26-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-25-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-24-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-77-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-73-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-70-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-54-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-48-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-46-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-14-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/4268-39-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-36-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-31-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/4268-23-0x0000000002BB0000-0x0000000002C66000-memory.dmp