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Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21/01/2025, 21:55

General

  • Target

    23edb53b418a41addc233dd18b8cedde5c27603e53be7e35c976c71f10fa28ff.exe

  • Size

    355KB

  • MD5

    1c1600535fba0d5b6162afed6203fc7f

  • SHA1

    046c6eb7cd3ce56150c34f8665670b2272f1024b

  • SHA256

    23edb53b418a41addc233dd18b8cedde5c27603e53be7e35c976c71f10fa28ff

  • SHA512

    89005095661e6f3326e4535ccebf0e16011aa08bd55743b4c79b76360ccbda4bd89820ca85b9512b24de1340769cd59e44b947442f8f3486755012d4fa3b2290

  • SSDEEP

    6144:igEmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Ei:EmWhND9yJz+b1FcMLmp2ATTSsd

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\23edb53b418a41addc233dd18b8cedde5c27603e53be7e35c976c71f10fa28ff.exe
    "C:\Users\Admin\AppData\Local\Temp\23edb53b418a41addc233dd18b8cedde5c27603e53be7e35c976c71f10fa28ff.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:2684
    • 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:1956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\8355.tmp

    Filesize

    481B

    MD5

    9f8342419dfb0128749506803eaf18d1

    SHA1

    3e943aa72cba76d2b000ff738c4719f234d521d8

    SHA256

    3b8c952a53a0005ba172b6905cf2889e522da223577b1277a31773fb28a544c3

    SHA512

    8f64206e8ebafebcfecf3160a25e6cc985e56ea46fe416d11560d3d0325c8058ac6f2f92a5c6a061507dbbd0f1990c9a9d2d68ecfe92804c9af049eff10bcc68

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    355KB

    MD5

    9a78a0d38d39ba4f8ecdeb73e4821c15

    SHA1

    2309f910d49577dcbaac667d7c9627066b60e237

    SHA256

    7e771062124c7e9a2a5aa4f2f934c085ecad7ad1d4c818244eef5b48e158c676

    SHA512

    98a8c3b7a3f29c73eb78162b547df4389980c417882bee5f7818cfa5a21f0e493e9d2d29da559c4ca7569834e87ca49f3553e2193f19ed69c0c5eabeda26c728

  • memory/1956-14-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-16-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-22-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-24-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-20-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-18-0x00000000001B0000-0x0000000000258000-memory.dmp

    Filesize

    672KB

  • memory/1956-25-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-30-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-29-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-27-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-32-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-36-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-58-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-78-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-77-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-76-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-75-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-74-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-73-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-72-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-71-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-70-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-69-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-68-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-67-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-65-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-64-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-63-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-62-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-61-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-60-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-59-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-57-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-56-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-55-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-54-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-53-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-52-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-51-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-50-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-48-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-46-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-45-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-44-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-43-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-42-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-41-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-66-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-40-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-37-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-49-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-35-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-47-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-34-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-39-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-33-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-38-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/1956-191-0x0000000000E60000-0x0000000000F16000-memory.dmp

    Filesize

    728KB

  • memory/2684-12-0x0000000000A30000-0x0000000000A8F000-memory.dmp

    Filesize

    380KB