Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/11/2024, 02:34

General

  • Target
    7ef95304b8e240cba2fddbc90e13d5e8fead7dd65c6c2cddc0e11af14198703b.exe
  • Size 205KB
  • Sample241112-c2lhqsshkd
  • SHA256 7ef95304b8e240cba2fddbc90e13d5e8fead7dd65c6c2cddc0e11af14198703b
  • 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 40 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\7ef95304b8e240cba2fddbc90e13d5e8fead7dd65c6c2cddc0e11af14198703b.exe
    "C:\Users\Admin\AppData\Local\Temp\7ef95304b8e240cba2fddbc90e13d5e8fead7dd65c6c2cddc0e11af14198703b.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1684
    • 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:3308

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        gahyqah.com

        • Path C:\Program Files (x86)\Windows Defender\gahyqah.com
        • Size 24KB
        • SHA256 85fb3d46f40120f66d418e4eeedec228bb731ab054fefc93a08d48e6bd67ec07
        • MD5 SHA1 SHA512 SSDEEP

        galyqaz.com

        • Path C:\Program Files (x86)\Windows Defender\galyqaz.com
        • Size 42KB
        • SHA256 d789a9891b00a25e24857f04688becb85ca1bf52b3c4792a72a7a404df38911a
        • MD5 SHA1 SHA512 SSDEEP

        puzylyp.com

        • Path C:\Program Files (x86)\Windows Defender\puzylyp.com
        • Size 58KB
        • SHA256 a111d45fed0a9e9a2e9d00f0c2a95c1f09b638872b41c5c8ca763e1bdcb1994d
        • MD5 SHA1 SHA512 SSDEEP

        qetyhyg.com

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

        qexyhuv.com

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

        vojyqem.com

        • Path C:\Program Files (x86)\Windows Defender\vojyqem.com
        • Size 1KB
        • SHA256 2aa2628e30663bdefa28b57610146a6db0a95a1d545afd718689b1b0f453ff05
        • MD5 SHA1 SHA512

        login[1].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WQOY74U4\login[1].htm
        • Size 168B
        • SHA256 43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
        • MD5 SHA1 SHA512

        login[2].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WQOY74U4\login[2].htm
        • Size 114B
        • SHA256 6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023
        • MD5 SHA1 SHA512

        login[4].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\WQOY74U4\login[4].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 205KB
        • SHA256 ea1bdcb2b7d0a0ae7895fa1fb0d0dc7ac5403c8ec954aba9293364c218d42328
        • MD5 SHA1 SHA512 SSDEEP

        memory/1684-1-0x0000000002220000-0x000000000226F000-memory.dmp

        memory/1684-14-0x0000000002220000-0x000000000226F000-memory.dmp

        memory/1684-15-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/1684-13-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/1684-2-0x0000000000400000-0x000000000045C000-memory.dmp

        memory/1684-0-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3308-56-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-47-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-79-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-78-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-77-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-76-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-74-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-73-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-72-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-71-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-70-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-69-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-68-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-67-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-66-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-64-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-63-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-62-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-61-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-60-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-59-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-58-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-57-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-41-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-55-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-54-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-52-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-51-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-50-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-49-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-48-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-44-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-46-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-45-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-43-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-42-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-40-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-39-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-38-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-37-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-36-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-35-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-34-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-33-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-32-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-31-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-29-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-28-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-27-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-75-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-26-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-65-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-53-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-25-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-30-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-22-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-24-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-20-0x0000000002FC0000-0x0000000003072000-memory.dmp

        memory/3308-19-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3308-18-0x0000000002DD0000-0x0000000002E74000-memory.dmp

        memory/3308-17-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3308-16-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3308-12-0x0000000000400000-0x000000000048A000-memory.dmp