Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/11/2024, 03:03

General

  • Target
    d4a51f1c075b3e1ed7fa0ff1fe559d9f86ee13ed6792848b0bbf9af69e7feb5d.exe
  • Size 218KB
  • Sample241114-dj676ateng
  • SHA256 d4a51f1c075b3e1ed7fa0ff1fe559d9f86ee13ed6792848b0bbf9af69e7feb5d
  • 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\d4a51f1c075b3e1ed7fa0ff1fe559d9f86ee13ed6792848b0bbf9af69e7feb5d.exe
    "C:\Users\Admin\AppData\Local\Temp\d4a51f1c075b3e1ed7fa0ff1fe559d9f86ee13ed6792848b0bbf9af69e7feb5d.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:4276
    • 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:3156

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        741B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\741B.tmp
        • Size 1KB
        • SHA256 7f77387acc525c23cc5412d7f1521d0b31bea838944623c6a2652a3b666ec7f1
        • MD5 SHA1 SHA512

        9D09.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9D09.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 218KB
        • SHA256 fce4dc05831d593cc4084534f1ffb985638036f09e1fae71298f16db5eb13553
        • MD5 SHA1 SHA512 SSDEEP

        memory/3156-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-14-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/3156-15-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/3156-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-17-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/3156-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-16-0x00000000028D0000-0x0000000002978000-memory.dmp

        memory/3156-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/3156-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/4276-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4276-0-0x00000000022F0000-0x0000000002341000-memory.dmp

        memory/4276-12-0x00000000022F0000-0x0000000002341000-memory.dmp

        memory/4276-13-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4276-11-0x0000000000400000-0x00000000005AE000-memory.dmp