Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2024, 23:23

General

  • Target
    659e58aec07c0118c07cec7636309623fbc9e6c0e065624a70e16ab28fc18519.exe
  • Size 375KB
  • Sample241122-3dbazasjgy
  • SHA256 659e58aec07c0118c07cec7636309623fbc9e6c0e065624a70e16ab28fc18519
  • 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\659e58aec07c0118c07cec7636309623fbc9e6c0e065624a70e16ab28fc18519.exe
    "C:\Users\Admin\AppData\Local\Temp\659e58aec07c0118c07cec7636309623fbc9e6c0e065624a70e16ab28fc18519.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:1168
    • 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:3584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        9BB4.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9BB4.tmp
        • Size 1KB
        • SHA256 f615e71a7e4708131180c6d99ce22955e7328838c7a3cd560aeb020362eb5a3d
        • MD5 SHA1 SHA512

        AEE0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\AEE0.tmp
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        AEE0.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\AEE0.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        C221.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C221.tmp
        • Size 1KB
        • SHA256 8914dc41e04b2f6ba9bf294829d602e5ba5c6d6dbb3bbff6d96856ceb066228e
        • MD5 SHA1 SHA512

        C232.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C232.tmp
        • Size 61KB
        • SHA256 dbb8360b3bfa34a86b64b55e865709b6d87b11069f47a79f4a3f28771fff4ee5
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 375KB
        • SHA256 cf5a45ca60a49d68e743e5f7b64f8b249ea80e44e00298fd3c3bbb6bf1a52f00
        • MD5 SHA1 SHA512 SSDEEP

        memory/1168-0-0x0000000000400000-0x0000000000464000-memory.dmp

        memory/1168-12-0x0000000000400000-0x0000000000464000-memory.dmp

        memory/3584-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-75-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-74-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-13-0x0000000002730000-0x00000000027D8000-memory.dmp

        memory/3584-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-9-0x0000000000400000-0x0000000000464000-memory.dmp

        memory/3584-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3584-306-0x0000000000400000-0x0000000000464000-memory.dmp

        memory/3584-308-0x0000000002B40000-0x0000000002BF6000-memory.dmp