Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2024, 17:37

General

  • Target
    d991e3671ae8e098f0c38e69aa383aae1b1be52f9992b05d7963570e892fc786N.exe
  • Size 217KB
  • Sample241108-v7ddesvrb1
  • SHA256 d991e3671ae8e098f0c38e69aa383aae1b1be52f9992b05d7963570e892fc786
  • 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\d991e3671ae8e098f0c38e69aa383aae1b1be52f9992b05d7963570e892fc786N.exe
    "C:\Users\Admin\AppData\Local\Temp\d991e3671ae8e098f0c38e69aa383aae1b1be52f9992b05d7963570e892fc786N.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:3568
    • 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:3296

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\9PMCFZKU\login[2].htm
        • Size 168B
        • SHA256 43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
        • MD5 SHA1 SHA512

        7D66.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\7D66.tmp
        • Size 481B
        • SHA256 fb5f5daa992c0f3e04649465c11576badaf7a3effb40720882f4aa457f94630a
        • MD5 SHA1 SHA512

        DA76.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\DA76.tmp
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        DA76.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\DA76.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        EC24.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\EC24.tmp
        • Size 58KB
        • SHA256 8018cab33a0935cd34e35f199032e89f37e4a2facf2666ede5f825e628195d89
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 217KB
        • SHA256 7a82a6bcba998e90990a4c0808191e2553277c79bf1e164d23c4eec1f61a5ae7
        • MD5 SHA1 SHA512 SSDEEP

        memory/3296-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-16-0x0000000000400000-0x0000000000589000-memory.dmp

        memory/3296-19-0x0000000000400000-0x0000000000589000-memory.dmp

        memory/3296-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-13-0x0000000000400000-0x0000000000589000-memory.dmp

        memory/3296-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-17-0x0000000000400000-0x0000000000589000-memory.dmp

        memory/3296-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-18-0x00000000028B0000-0x0000000002958000-memory.dmp

        memory/3296-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3296-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3568-2-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3568-0-0x0000000000400000-0x0000000000589000-memory.dmp

        memory/3568-1-0x0000000002320000-0x0000000002371000-memory.dmp

        memory/3568-15-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3568-14-0x0000000002320000-0x0000000002371000-memory.dmp

        memory/3568-12-0x0000000000400000-0x0000000000589000-memory.dmp