Analysis

  • max time kernel
    117s
  • 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
    22/11/2024, 19:02

General

  • Target
    7d211c1e8d1fdf7f124499714bc317b5a9c4750c6cccc8f8dfea68530499b04f.exe
  • Size 202KB
  • Sample241122-xp5q3asmbm
  • SHA256 7d211c1e8d1fdf7f124499714bc317b5a9c4750c6cccc8f8dfea68530499b04f
  • 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\7d211c1e8d1fdf7f124499714bc317b5a9c4750c6cccc8f8dfea68530499b04f.exe
    "C:\Users\Admin\AppData\Local\Temp\7d211c1e8d1fdf7f124499714bc317b5a9c4750c6cccc8f8dfea68530499b04f.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:2408
    • 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:4916

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        5D46.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\5D46.tmp
        • Size 61KB
        • SHA256 b967c5f9dad91e2f97eee649988d1917455886ec7a6e5882444b294688bc1671
        • MD5 SHA1 SHA512 SSDEEP

        CEF8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\CEF8.tmp
        • Size 24KB
        • SHA256 d69094a78832b61d86d2387763879d9501ae3704f3f93ec752a4502a331c2c2e
        • MD5 SHA1 SHA512 SSDEEP

        CF48.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\CF48.tmp
        • Size 1KB
        • SHA256 f896ab76a985493e3308c7b6ec4891b4ac783ec74c68788a8274d4ec59e1c9eb
        • MD5 SHA1 SHA512

        F5B8.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\F5B8.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 202KB
        • SHA256 644ab36ae7af4d85e7ee7094c587ce55203b789c1f4b796d18e885561a28407d
        • MD5 SHA1 SHA512 SSDEEP

        memory/2408-0-0x0000000000600000-0x0000000000603000-memory.dmp

        memory/2408-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/2408-14-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/2408-13-0x0000000000600000-0x0000000000603000-memory.dmp

        memory/4916-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-16-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4916-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-78-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-77-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-76-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-75-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-74-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-12-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4916-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-15-0x0000000002740000-0x00000000027E8000-memory.dmp

        memory/4916-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4916-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp