Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/11/2024, 06:36

General

  • Target
    dff1c3d444576f4f0a1ef114c41ad934634c3f0a5fc94f925a3ed7caac4a6c46.exe
  • Size 205KB
  • Sample241113-hdc5cazpgk
  • SHA256 dff1c3d444576f4f0a1ef114c41ad934634c3f0a5fc94f925a3ed7caac4a6c46
  • 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 Program Files directory 36 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dff1c3d444576f4f0a1ef114c41ad934634c3f0a5fc94f925a3ed7caac4a6c46.exe
    "C:\Users\Admin\AppData\Local\Temp\dff1c3d444576f4f0a1ef114c41ad934634c3f0a5fc94f925a3ed7caac4a6c46.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1680
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3276

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        galyqaz.com

        • Path C:\Program Files (x86)\Windows Defender\galyqaz.com
        • Size 42KB
        • SHA256 a9896e59827dbc5d2aeb54e6f4c0749e4c8b59acbdd2d0677fe4fe6bcd058de5
        • MD5 SHA1 SHA512 SSDEEP

        pupydeq.com

        • Path C:\Program Files (x86)\Windows Defender\pupydeq.com
        • Size 114B
        • SHA256 e0d020ba1cb6506cee234903a44c747ee0cfa7e2d1e60029e4cd8de9a431512a
        • MD5 SHA1 SHA512

        puzylyp.com

        • Path C:\Program Files (x86)\Windows Defender\puzylyp.com
        • Size 61KB
        • SHA256 64cb837648eebf8c4c907ddae4b3399c273be4bc526d42b1d6ba75e921d7f6b3
        • MD5 SHA1 SHA512 SSDEEP

        qetyhyg.com

        • Path C:\Program Files (x86)\Windows Defender\qetyhyg.com
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        qetyhyg.com

        • Path C:\Program Files (x86)\Windows Defender\qetyhyg.com
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        vojyqem.com

        • Path C:\Program Files (x86)\Windows Defender\vojyqem.com
        • Size 1KB
        • SHA256 36f2e6af98fc96f7077a35e6ab4efee862b8e8a26e363537316e0fe9eb08ec4a
        • MD5 SHA1 SHA512

        vojyqem.com

        • Path C:\Program Files (x86)\Windows Defender\vojyqem.com
        • Size 1KB
        • SHA256 c1ec69f98f8ef9bb2c8808ab19d113f8c9af7f3aa9b78011fcbb123c9ebe95b7
        • MD5 SHA1 SHA512

        login[3].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FMGLWGAG\login[3].htm
        • Size 168B
        • SHA256 43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
        • MD5 SHA1 SHA512

        login[2].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\V4KZV1MD\login[2].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        login[3].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YY018DS9\login[3].htm
        • Size 114B
        • SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 205KB
        • SHA256 d529d834232d6016451efdac62972e0404cb4dc697192737c593ff4edff2e1c4
        • MD5 SHA1 SHA512 SSDEEP

        memory/1680-13-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1680-14-0x0000000002260000-0x00000000022AF000-memory.dmp

        memory/1680-15-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/1680-2-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/1680-1-0x0000000002260000-0x00000000022AF000-memory.dmp

        memory/1680-0-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3276-54-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-44-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-78-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-77-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-76-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-74-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-73-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-72-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-71-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-70-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-69-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-68-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-67-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-66-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-65-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-63-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-62-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-60-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-59-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-58-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-57-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-56-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-55-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-53-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-52-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-51-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-50-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-49-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-48-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-47-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-45-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-79-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-43-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-42-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-41-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-40-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-39-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-38-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-37-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-36-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-35-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-34-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-33-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-32-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-31-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-29-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-28-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-27-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-75-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-26-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-64-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-61-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-25-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-46-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-22-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-24-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-20-0x0000000002C40000-0x0000000002CF2000-memory.dmp

        memory/3276-19-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3276-18-0x0000000002A90000-0x0000000002B34000-memory.dmp

        memory/3276-17-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3276-16-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3276-12-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3276-30-0x0000000002C40000-0x0000000002CF2000-memory.dmp