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Analysis

  • max time kernel
    140s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2024, 20:56

General

  • Target

    7782f8ba4445a38fd5a235e803bcd7bad64dd144a91fb05c21e2e3183c13420c.exe

  • Size

    204KB

  • MD5

    3264405ed24584c06875868107491fce

  • SHA1

    53a6940966e4818249cc5c548e7a5f295522e830

  • SHA256

    7782f8ba4445a38fd5a235e803bcd7bad64dd144a91fb05c21e2e3183c13420c

  • SHA512

    5bc3780438a60736fca0eaf2e265749bc0d3d7cd172b00fbf21bf3563a89a23ba53efc583a35cf15dd43c2c2c5d00c3b53dbc431fc94d0d08ab04dcc76606538

  • SSDEEP

    3072:P5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlAg:PLexkuRaX41xoyJV65gzyZko+uc5

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\7782f8ba4445a38fd5a235e803bcd7bad64dd144a91fb05c21e2e3183c13420c.exe
    "C:\Users\Admin\AppData\Local\Temp\7782f8ba4445a38fd5a235e803bcd7bad64dd144a91fb05c21e2e3183c13420c.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:2364
    • 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:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    ead1fbca6fb7276f4518779047522a55

    SHA1

    9f36bad905f3ce9000c6d55e4998dc34f2248daf

    SHA256

    aceebebe5e34dfaa29d11b68b8b77a857443c8d5f528531cc05bc8e81e2d2ee2

    SHA512

    7e7cff5bfffa31104c7b30f7452207950f9864d32260cf6a950ff58a99ec7d1593545b06e6db3a31400848f2f434aeb2b098c2cb4404dfc5f5f5c9820ce83649

  • memory/2156-66-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-62-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-22-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-32-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-41-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-44-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-47-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-49-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-30-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2156-28-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-26-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-24-0x0000000002700000-0x00000000027A8000-memory.dmp

    Filesize

    672KB

  • memory/2156-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2156-38-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-36-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-34-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-43-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-42-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-40-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-84-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-82-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-80-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-79-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-77-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-76-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-74-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-72-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-71-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-69-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2156-67-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-51-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2156-61-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-59-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-58-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-56-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-54-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-52-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-64-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-50-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-48-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-46-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-45-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-83-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-81-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-78-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-75-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-73-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-70-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-68-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-65-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-63-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-60-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-57-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-55-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2156-53-0x00000000028B0000-0x0000000002966000-memory.dmp

    Filesize

    728KB

  • memory/2364-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2364-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2364-1-0x0000000000240000-0x0000000000291000-memory.dmp

    Filesize

    324KB

  • memory/2364-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2364-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2364-19-0x0000000000240000-0x0000000000291000-memory.dmp

    Filesize

    324KB