Analysis

  • max time kernel
    109s
  • max time network
    116s
  • 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, 22:39

General

  • Target
    e4e65b001d63e7be86035e0e88b4edda0d410805250b1fa72978c923f871c2fa.exe
  • Size 686KB
  • Sample241122-2lc9vs1mdt
  • SHA256 e4e65b001d63e7be86035e0e88b4edda0d410805250b1fa72978c923f871c2fa
  • 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\e4e65b001d63e7be86035e0e88b4edda0d410805250b1fa72978c923f871c2fa.exe
    "C:\Users\Admin\AppData\Local\Temp\e4e65b001d63e7be86035e0e88b4edda0d410805250b1fa72978c923f871c2fa.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:1668
    • 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:3860

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        909A.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\909A.tmp
        • Size 1KB
        • SHA256 e6446779f90e4d5a611dd34ddf5d0db99e7b2b6465dd783b89d072aad3c998b5
        • MD5 SHA1 SHA512

        90AB.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\90AB.tmp
        • Size 61KB
        • SHA256 f9a5b3bb16d941ba3ee88f663d14ee53ed0cccd2bbaafb4a807ccb11cccab91f
        • MD5 SHA1 SHA512 SSDEEP

        910C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\910C.tmp
        • Size 42KB
        • SHA256 d6ca047e5568b228d6da7674d63671d33d1bfdf8f7903b31caffe89802db9a32
        • MD5 SHA1 SHA512 SSDEEP

        9C32.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9C32.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 686KB
        • SHA256 f432ff1865b60fc931edc17a5fcb4afa27d7de29ee3cc8033781a713ecf928b6
        • MD5 SHA1 SHA512 SSDEEP

        memory/3860-10-0x0000000002A00000-0x0000000002AA8000-memory.dmp

        memory/3860-11-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-15-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-13-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-36-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-45-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-73-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-72-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-71-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-70-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-69-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-68-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-67-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-66-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-65-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-63-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-62-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-61-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-60-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-59-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-58-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-57-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-56-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-55-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-54-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-53-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-52-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-51-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-50-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-49-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-48-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-46-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-44-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-43-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-42-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-40-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-41-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-39-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-38-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-37-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-35-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-34-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-33-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-31-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-30-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-29-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-28-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-27-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-26-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-25-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-24-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-22-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-20-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-18-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-19-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-17-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-64-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-47-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-32-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-23-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-21-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-16-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/3860-309-0x0000000002BB0000-0x0000000002C66000-memory.dmp