Analysis

  • max time kernel
    118s
  • 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
    29-10-2024 11:11

General

  • Target

    b5f126c6d79d2d7a1675ceb2a3dd651d85b18150c05c0600d726bb7ee488767fN.exe

  • Size

    204KB

  • MD5

    ad9f322c676d8b6be839c949028dbe00

  • SHA1

    4f3ac17826b186fdddfd8d7a00ac3fd6f26a132d

  • SHA256

    b5f126c6d79d2d7a1675ceb2a3dd651d85b18150c05c0600d726bb7ee488767f

  • SHA512

    be2cdb985c376d49352224d9b27b5d7cfc9a92b55dc2645955c920b742794399912a4899562f18abad4a95d01126870c31d1fc3c1252ea2e4a8e1b5a597d1f97

  • SSDEEP

    3072:D5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlAQ:DLexkuRaX41xoyJV65gzyZko+uc

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\b5f126c6d79d2d7a1675ceb2a3dd651d85b18150c05c0600d726bb7ee488767fN.exe
    "C:\Users\Admin\AppData\Local\Temp\b5f126c6d79d2d7a1675ceb2a3dd651d85b18150c05c0600d726bb7ee488767fN.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:1428
    • 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:212

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\apppatch\svchost.exe

    Filesize

    204KB

    MD5

    78e0f0e7c7e8b12a72de53f4e5fcf05b

    SHA1

    88dfb0b9674483360cfe094de601ebabffa18df1

    SHA256

    24c9299f44fac64d27ef8aecafbf64d7d9be8ffef42714daa339692978752dba

    SHA512

    3495eb1708bafe65194fd652584d47481ab056be6ff0b012d86c7a5bb28c069e41fa52312160c015492c08912e4b1a2dae9ccff57afc3ec70b43a027cf65f75d

  • memory/212-57-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-20-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/212-18-0x0000000002AB0000-0x0000000002B58000-memory.dmp

    Filesize

    672KB

  • memory/212-25-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-55-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-56-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-45-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-19-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/212-54-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-24-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-22-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-79-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-78-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-77-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-76-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-75-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-74-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-73-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-72-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-71-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-70-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-69-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-68-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-67-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-66-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-65-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-63-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-62-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-61-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-60-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-59-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-58-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-12-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/212-26-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-48-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-13-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/212-53-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-52-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-51-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-50-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-49-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-47-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-46-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-43-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-44-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-42-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-41-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-40-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-38-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-39-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-37-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-36-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-35-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-34-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-33-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-32-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-31-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-30-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-29-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-28-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-27-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/212-64-0x0000000002CA0000-0x0000000002D56000-memory.dmp

    Filesize

    728KB

  • memory/1428-1-0x00000000007F0000-0x0000000000841000-memory.dmp

    Filesize

    324KB

  • memory/1428-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1428-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1428-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/1428-15-0x00000000007F0000-0x0000000000841000-memory.dmp

    Filesize

    324KB

  • memory/1428-14-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB