Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/10/2024, 00:19

General

  • Target
    b23744a100af37d4345cec6b22c06624d1d4ba35048f5fd52af9e722ed2ac217.exe
  • Size 399KB
  • Sample241027-amp69ssbkr
  • SHA256 b23744a100af37d4345cec6b22c06624d1d4ba35048f5fd52af9e722ed2ac217
  • 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\b23744a100af37d4345cec6b22c06624d1d4ba35048f5fd52af9e722ed2ac217.exe
    "C:\Users\Admin\AppData\Local\Temp\b23744a100af37d4345cec6b22c06624d1d4ba35048f5fd52af9e722ed2ac217.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:4816
    • 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:1328

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        login[3].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G94T3PNL\login[3].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        login[2].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PTWQX4L2\login[2].htm
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        8DAF.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\8DAF.tmp
        • Size 481B
        • SHA256 ba9bf8effb24bfe53fcc2366d5ae0aaa6269ff26c7604bd49092327205a0d2d7
        • MD5 SHA1 SHA512

        933B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\933B.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        A39E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\A39E.tmp
        • Size 41KB
        • SHA256 88fa879ca7214b42849170fcccbe6fa74d84fe66d536627435e15ac6844bbdd0
        • MD5 SHA1 SHA512 SSDEEP

        A39E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\A39E.tmp
        • Size 41KB
        • SHA256 266d08643e17bc33af555ee55b798f56d768162ed725d2d8eb34d306c01b960a
        • MD5 SHA1 SHA512 SSDEEP

        A3E3.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\A3E3.tmp
        • Size 62KB
        • SHA256 547405265f9083653ecfcac68ef85c6719a7f3800e60da1f4608161a9de8961c
        • MD5 SHA1 SHA512 SSDEEP

        C613.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C613.tmp
        • Size 62KB
        • SHA256 2d4821f22d441e2cc4969554ac12b9b9132d6b9f071b308575c21af8ec370819
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 399KB
        • SHA256 e0113d6222fc7bc1c8c4f78ab4d0a6cf3055522b26f8209f14923ed5633f346c
        • MD5 SHA1 SHA512 SSDEEP

        memory/1328-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-307-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/1328-10-0x0000000002730000-0x00000000027D8000-memory.dmp

        memory/4816-8-0x0000000000400000-0x000000000046A000-memory.dmp