Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2024 07:28

General

  • Target

    645ff3fc239974b7cadb8daac36cea3aca65d4182d7977f865d904e43ad78988N.exe

  • Size

    208KB

  • MD5

    6aef8fba0a6d5c2a58a2e1770ea83d30

  • SHA1

    f499c3e797765fb99899975fee23044feec3d595

  • SHA256

    645ff3fc239974b7cadb8daac36cea3aca65d4182d7977f865d904e43ad78988

  • SHA512

    cad83ce027d9cc7615b0b3a788e2c93dfae715c6f3d68be6bc8bc3561b33db3dcd39a5f979eab4e381e13ca319ae58f151f3c5a8c4c7ac0dd0ceb8e2e71564ca

  • SSDEEP

    6144:aOYX27lPBA3YDMw4lj6idlMlwl7/79C87:awBAy0rlMI5

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
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\645ff3fc239974b7cadb8daac36cea3aca65d4182d7977f865d904e43ad78988N.exe
    "C:\Users\Admin\AppData\Local\Temp\645ff3fc239974b7cadb8daac36cea3aca65d4182d7977f865d904e43ad78988N.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1712
    • 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:1180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    208KB

    MD5

    4e637880c56d05335a464757a06a69f0

    SHA1

    c425edbd59730de7e352232d46f50412cc6fbd57

    SHA256

    fc6965361a8349827de0e1165156a6359a2498b9aa23c09ba7511a03a407036b

    SHA512

    9856d77a9ce9c898561194915d9191332cbfbee3502a574a8767b3cfd55d56875221d14e4224e1ac2c8b774cce583bac34f7c27be3acb7c50e25af7343af2ea2

  • memory/1180-62-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-26-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-33-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1180-32-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-64-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-19-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1180-34-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-36-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-30-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-28-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-61-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-24-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-22-0x00000000025B0000-0x0000000002658000-memory.dmp

    Filesize

    672KB

  • memory/1180-38-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-21-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1180-44-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-75-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-84-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-82-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-81-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-79-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-78-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-77-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-74-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-72-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-71-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-69-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-67-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-66-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-65-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-40-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-41-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-20-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1180-59-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-58-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-56-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-55-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-53-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-52-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-51-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-50-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-49-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-48-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-83-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-47-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-80-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-76-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-46-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-73-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-70-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-68-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-45-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-63-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-60-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-57-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-43-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-54-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1180-42-0x00000000028C0000-0x0000000002976000-memory.dmp

    Filesize

    728KB

  • memory/1712-16-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1712-0-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/1712-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1712-1-0x00000000002F0000-0x0000000000341000-memory.dmp

    Filesize

    324KB

  • memory/1712-17-0x00000000002F0000-0x0000000000341000-memory.dmp

    Filesize

    324KB

  • memory/1712-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB