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Analysis

  • max time kernel
    110s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    16/12/2024, 08:45

General

  • Target

    2928346025207dbd963d55e96038b88e6d90a08efe2a7a4b17b369864c3f45b8N.exe

  • Size

    218KB

  • MD5

    f0c37cef65db3f3d82f2e9c5577e91c0

  • SHA1

    7709f8261ecb3c6e87aa07ae087224c775bbca69

  • SHA256

    2928346025207dbd963d55e96038b88e6d90a08efe2a7a4b17b369864c3f45b8

  • SHA512

    fb1b5857bc6729317dc184cfc3ca8f05e030e51fdf2380208bb5e2ab4867f58747952f5b55369a5ea7194524783ec3ce9766f4d049dfc0d0d555a01ba67ac7e5

  • SSDEEP

    3072:rvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:z1SyAJp6rjn1gOObn4b6h9h

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\2928346025207dbd963d55e96038b88e6d90a08efe2a7a4b17b369864c3f45b8N.exe
    "C:\Users\Admin\AppData\Local\Temp\2928346025207dbd963d55e96038b88e6d90a08efe2a7a4b17b369864c3f45b8N.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:2200
    • 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:2652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    f3a0ee5a747a82855e0dcdfa75d5450f

    SHA1

    2b2c6cda3bcc4d56398992f44044ed5f8be512dc

    SHA256

    30737be336fee45d5b61b3c2d88af1d05601e9b909c1b9a10e1a2a3c7b8d9f65

    SHA512

    77f014aaf15718d16c8f9078790fffe8287725c13413ee96920a39b2a0d7ee1b7ab90c41272633ce8bfb235a29251d68bccdcfc916d937ea2b723699d1439227

  • memory/2200-0-0x0000000000310000-0x0000000000361000-memory.dmp

    Filesize

    324KB

  • memory/2200-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2200-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2200-16-0x0000000000310000-0x0000000000361000-memory.dmp

    Filesize

    324KB

  • memory/2200-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2652-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2652-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2652-20-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-30-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-28-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/2652-26-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-24-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-22-0x00000000005B0000-0x0000000000658000-memory.dmp

    Filesize

    672KB

  • memory/2652-32-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-36-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-34-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-40-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-46-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-84-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-83-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-82-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-81-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-80-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-79-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-78-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-77-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-76-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-75-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-74-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-73-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-72-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-71-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-70-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-68-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-67-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-66-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-65-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-64-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-63-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-62-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-61-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-60-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-59-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-58-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-57-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-56-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-55-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-54-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-53-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-52-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-51-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-50-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-49-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-47-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-45-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-44-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-43-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-69-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-42-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-41-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-39-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-48-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2652-38-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB