Analysis

  • max time kernel
    114s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 01:18

General

  • Target
    4ca3e32ec012d18fda60a6334622aec23cc06bb9fa8b291bcce7d2825b780e4bN.exe
  • Size 205KB
  • Sample241107-bpb8vsscpe
  • SHA256 4ca3e32ec012d18fda60a6334622aec23cc06bb9fa8b291bcce7d2825b780e4b
  • 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 30 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\4ca3e32ec012d18fda60a6334622aec23cc06bb9fa8b291bcce7d2825b780e4bN.exe
    "C:\Users\Admin\AppData\Local\Temp\4ca3e32ec012d18fda60a6334622aec23cc06bb9fa8b291bcce7d2825b780e4bN.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:3964

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        lysyfyj.com

        • Path C:\Program Files (x86)\Windows Defender\lysyfyj.com
        • Size 481B
        • SHA256 0523000d7b8c9f5dcd96facc30dc246c9edc5ade199bd80c6056743b41ceb9c7
        • MD5 SHA1 SHA512

        pupydeq.com

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

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 205KB
        • SHA256 26e2f8c99f1f459502c79fb519f837bc922069863b4e9fd59e2abfe0bf4c4f6b
        • MD5 SHA1 SHA512 SSDEEP

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

        memory/1684-1-0x0000000002600000-0x000000000264F000-memory.dmp

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

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

        memory/1684-14-0x0000000002600000-0x000000000264F000-memory.dmp

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

        memory/3964-16-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3964-12-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3964-17-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3964-18-0x0000000002DA0000-0x0000000002E44000-memory.dmp

        memory/3964-19-0x0000000000400000-0x000000000048A000-memory.dmp

        memory/3964-20-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-24-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-22-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-46-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-45-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-79-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-78-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-77-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-76-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-75-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-74-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-73-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-72-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-70-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-69-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-68-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-67-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-66-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-65-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-64-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-63-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-62-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-61-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-59-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-58-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-57-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-56-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-55-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-54-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-53-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-52-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-51-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-50-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-48-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-47-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-44-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-43-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-42-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-41-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-40-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-39-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-38-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-37-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-35-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-34-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-33-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-32-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-31-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-29-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-27-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-28-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-26-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-71-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-60-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-49-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-36-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-30-0x0000000002F90000-0x0000000003042000-memory.dmp

        memory/3964-25-0x0000000002F90000-0x0000000003042000-memory.dmp