Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    26/12/2024, 21:46

General

  • Target

    fce770de731e4eb6cc2656fcc038019f55115bf42b9fd952840242719cc0adb1N.exe

  • Size

    218KB

  • MD5

    505d616e108ffb70f7a35faff89c0b30

  • SHA1

    956295297d84bb7a9de7e0c0511128f9116f0b62

  • SHA256

    fce770de731e4eb6cc2656fcc038019f55115bf42b9fd952840242719cc0adb1

  • SHA512

    817ff2c9b2ddb62f8f96171032434920951b18ebe46a20783c1ffed2ffdb4e11985d6adc43efec82f81a217ca00d58e0006211f90b4120c48067feeb1bb2eb10

  • SSDEEP

    6144:GEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwIC:GEGDdQNHEwWlMxYG/wI

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\fce770de731e4eb6cc2656fcc038019f55115bf42b9fd952840242719cc0adb1N.exe
    "C:\Users\Admin\AppData\Local\Temp\fce770de731e4eb6cc2656fcc038019f55115bf42b9fd952840242719cc0adb1N.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:1728
    • 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:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    20bf39fe160c087acc78df99a853dbef

    SHA1

    b0cee4746aaad37cf2a88ba947f726469b8092eb

    SHA256

    e73c0e53957cf9cb21a6715d073270e55186e5648d4a6d0d9caf1d237bb61e62

    SHA512

    d1dc38065130577a52e73f4e8567236b1596c500aff129ed2b1eb726fcb6dd38f7c3e745df260b087e1b0daeb82c1d881d25ec685c5ccf54ce74549784d988fd

  • memory/1728-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1728-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/1728-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1728-19-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1728-17-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/1728-15-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2524-18-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2524-20-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2524-21-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2524-32-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-30-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-33-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/2524-28-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-26-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-24-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-22-0x00000000006D0000-0x0000000000778000-memory.dmp

    Filesize

    672KB

  • memory/2524-34-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-36-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-38-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-41-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-45-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-44-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-43-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-57-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-56-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-55-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-54-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-53-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-52-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-51-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-50-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-49-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-48-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-83-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-47-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-46-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-42-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-84-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-82-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-81-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-80-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-79-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-78-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-77-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-76-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-75-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-74-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-73-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-72-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-71-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-70-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-69-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-68-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-67-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-66-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-65-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-64-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-63-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-62-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-60-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-59-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-58-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB

  • memory/2524-61-0x0000000000780000-0x0000000000836000-memory.dmp

    Filesize

    728KB