Analysis

  • max time kernel
    132s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2024, 05:26

General

  • Target
    fe358ca8ffa50a8cb2c70d1b7baa5e2235c56a8f9291a3d98d659e04fc53673a.exe
  • Size 686KB
  • Sample241124-f41bfsslfj
  • SHA256 fe358ca8ffa50a8cb2c70d1b7baa5e2235c56a8f9291a3d98d659e04fc53673a
  • 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
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe358ca8ffa50a8cb2c70d1b7baa5e2235c56a8f9291a3d98d659e04fc53673a.exe
    "C:\Users\Admin\AppData\Local\Temp\fe358ca8ffa50a8cb2c70d1b7baa5e2235c56a8f9291a3d98d659e04fc53673a.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:864
    • 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:2524

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        8F8C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\8F8C.tmp
        • Size 42KB
        • SHA256 2cc6a66188e058fd2d60e857804c8f8e0dcc41e7a74cb922a1fde3d32be2620f
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 686KB
        • SHA256 c7d1839dc34f6f24da23ff3b0a8b6623984a1ded262b3096f76ff2dba6ec3ca5
        • MD5 SHA1 SHA512 SSDEEP

        memory/864-12-0x0000000000400000-0x00000000004B7000-memory.dmp

        memory/2524-77-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-75-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-74-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-72-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-71-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-69-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-68-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-67-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-65-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-63-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-62-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-60-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-59-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-57-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-55-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-54-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-53-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-52-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-51-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-49-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-48-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-47-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-46-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-45-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-44-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-43-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-42-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-41-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-39-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-76-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-73-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-38-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-70-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-37-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-66-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-36-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-64-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-61-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-35-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-33-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-58-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-56-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-50-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-32-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-40-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-34-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-31-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-29-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-27-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-25-0x00000000021F0000-0x00000000022A6000-memory.dmp

        memory/2524-24-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-22-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-20-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-18-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-16-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-14-0x00000000002D0000-0x0000000000378000-memory.dmp

        memory/2524-200-0x00000000021F0000-0x00000000022A6000-memory.dmp