Analysis

  • max time kernel
    115s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/11/2024, 12:53

General

  • Target
    54bbe78942bbf757fd3fa5dbdb068a066e11902426aae05707d74c0f9fd57fb6N.exe
  • Size 204KB
  • Sample241113-p413essemq
  • SHA256 c1d9071ab5ed32e3f860f2270fa32e607c86c330d3df2e1ff256883b6c9235ec
  • 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\54bbe78942bbf757fd3fa5dbdb068a066e11902426aae05707d74c0f9fd57fb6N.exe
    "C:\Users\Admin\AppData\Local\Temp\54bbe78942bbf757fd3fa5dbdb068a066e11902426aae05707d74c0f9fd57fb6N.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:3276
    • 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:2816

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        739B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\739B.tmp
        • Size 1KB
        • SHA256 2b007e8a031bd4da68fd19b25cadd0cc61d617a37986ecd0978423bcb894b646
        • MD5 SHA1 SHA512

        742C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\742C.tmp
        • Size 61KB
        • SHA256 cc186c757f5f9f12db2624af395e93fddf3accd20533bfb43247f4bd36412124
        • MD5 SHA1 SHA512 SSDEEP

        745C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\745C.tmp
        • Size 42KB
        • SHA256 18701d9820c577f7006dac9761f28224650562542d746ba8bf996d331107f541
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 204KB
        • SHA256 c12ea2b681f5086380c6f0e98cf4d1fd70cc59aa05f3461aff82e2dfe96a739f
        • MD5 SHA1 SHA512 SSDEEP

        memory/2816-56-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-55-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-12-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/2816-13-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/2816-42-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-19-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/2816-20-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-23-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-24-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-31-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-33-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-78-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-77-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-76-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-75-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-74-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-73-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-71-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-70-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-18-0x0000000002B40000-0x0000000002BE8000-memory.dmp

        memory/2816-69-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-68-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-67-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-66-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-65-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-64-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-62-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-61-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-60-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-59-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-58-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-57-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-17-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/2816-52-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-25-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-53-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-54-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-50-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-49-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-48-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-47-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-46-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-45-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-44-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-43-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-41-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-40-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-39-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-38-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-37-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-36-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-35-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-34-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-32-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-30-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-29-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-28-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-79-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-27-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-72-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-26-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-63-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/2816-51-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

        memory/3276-0-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/3276-14-0x0000000000400000-0x000000000057D000-memory.dmp

        memory/3276-2-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3276-1-0x00000000022F0000-0x0000000002341000-memory.dmp

        memory/3276-16-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3276-15-0x00000000022F0000-0x0000000002341000-memory.dmp