Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-12-2024 11:59

General

  • Target

    f4d3cf3d5f0054698ac82507fb07ddbba7eaa77edcc2490ca48397a1b2e366ab.exe

  • Size

    218KB

  • MD5

    d6bc3456bb2aec04b016c0744f6dbccf

  • SHA1

    6cc2d02959c56356d86efdf26c0667bdeeb64eeb

  • SHA256

    f4d3cf3d5f0054698ac82507fb07ddbba7eaa77edcc2490ca48397a1b2e366ab

  • SHA512

    9e574ab2ff3355145306526c7ed857561e7d26ca73fd9376203c72e0f2a90f9c52166e370301df520e9256dbdddd68d82c580cc83725e25275b4e5f6b2a7c60f

  • SSDEEP

    6144:iEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwICG:iEGDdQNHEwWlMxYG/wIp

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\f4d3cf3d5f0054698ac82507fb07ddbba7eaa77edcc2490ca48397a1b2e366ab.exe
    "C:\Users\Admin\AppData\Local\Temp\f4d3cf3d5f0054698ac82507fb07ddbba7eaa77edcc2490ca48397a1b2e366ab.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:2536
    • 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:2508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    a57ed37986afe076fe9018af9e913d14

    SHA1

    4cfdd2b3872782a6e9e7030c4bd19e9c4bc3f906

    SHA256

    3790fffc551824b29d8a8d16c140f1030862305b22e2fa8c98efa9fd521b6444

    SHA512

    7c90c6ea0c7e329f7f844819d3ee909f760e712244661a24bdef141ddaa0533957a66581ccb68e799d061161252399ca26f524fa1d8572c00ffb5a04a07681f5

  • memory/2508-72-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-42-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-21-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2508-26-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-73-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-40-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-19-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2508-43-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-32-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-30-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-71-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-28-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-24-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-22-0x0000000002400000-0x00000000024A8000-memory.dmp

    Filesize

    672KB

  • memory/2508-34-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-38-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-36-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-41-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-54-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-85-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-83-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-82-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-81-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-80-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-79-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-78-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-77-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-76-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-75-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-74-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-56-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-20-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2508-33-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2508-68-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-67-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-66-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-65-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-64-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-63-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-62-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-61-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-60-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-59-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-58-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-57-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-55-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-53-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-52-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-51-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-50-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-49-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-48-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-70-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-47-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-46-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-69-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-45-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2508-44-0x0000000002610000-0x00000000026C6000-memory.dmp

    Filesize

    728KB

  • memory/2536-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2536-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2536-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2536-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2536-17-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/2536-16-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB