Analysis

  • max time kernel
    105s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23/11/2025, 10:20

General

  • Target
    svchost.exe
  • Size 597KB
  • Sample251123-mc56yseq3x
  • SHA256 c290b6cabc5e418e02f796b67be6d9f7018f6092b3b4d74babf7e2748ff85fd6
  • 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

  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4140
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1496

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 597KB
        • SHA256 1808bbaa4104e93d484582f269c7cdb4a2e81685403550f8eb7edeaa9208f3ea
        • MD5 SHA1 SHA512 SSDEEP

        memory/1496-51-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-42-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-17-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-21-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-2054-0x0000000007820000-0x0000000007821000-memory.dmp

        memory/1496-19-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-50-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-27-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-78-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-47-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-76-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-75-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-74-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-73-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-72-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-71-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-70-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-68-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-67-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-66-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-65-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-64-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-62-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-61-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-60-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-59-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-58-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-57-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-56-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-55-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-54-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-53-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-52-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-13-0x0000000000400000-0x0000000000496000-memory.dmp

        memory/1496-22-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-16-0x0000000002B40000-0x0000000002BEA000-memory.dmp

        memory/1496-77-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-46-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-44-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-43-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-49-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-41-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-40-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-39-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-38-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-37-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-36-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-35-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-34-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-33-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-32-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-31-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-30-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-28-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-26-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-69-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-25-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-63-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-24-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-23-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-48-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-45-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-29-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-158-0x0000000002F00000-0x0000000002FB7000-memory.dmp

        memory/1496-2055-0x0000000007830000-0x0000000007831000-memory.dmp

        memory/1496-2053-0x0000000007840000-0x0000000007841000-memory.dmp

        memory/4140-0-0x0000000000400000-0x0000000000496000-memory.dmp

        memory/4140-1-0x0000000002800000-0x0000000002852000-memory.dmp

        memory/4140-15-0x0000000002800000-0x0000000002852000-memory.dmp

        memory/4140-14-0x0000000000400000-0x0000000000496000-memory.dmp