Analysis

  • max time kernel
    111s
  • max time network
    117s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 13:24

General

  • Target

    dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.exe

  • Size

    218KB

  • MD5

    25757022421287caca664319e9ed57a0

  • SHA1

    11604506442aa9b8a232c6515062a28298c4fc86

  • SHA256

    dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577

  • SHA512

    e1add428127d03aa792c55e733a6fe7edad8210027feba968bced74908bb25bb7c4996a698c0def8aefbe8d264adec8665b26ec08457cc4ebdff1e669ea58e60

  • SSDEEP

    3072:Evm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:S1SyAJp6rjn1gOObn4b6h9h

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

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 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 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.exe
    "C:\Users\Admin\AppData\Local\Temp\dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:100
    • 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:2420

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\apppatch\svchost.exe

          Filesize

          218KB

          MD5

          ee86194d1d25588c1565fd3ce1b5a224

          SHA1

          5a3347e8040db1b6bef2035d2c6c89e41c01f042

          SHA256

          0df549fe96f66bd450520acff5cb4ee0fbbe8e2bc04f3c48cf3f054b93657fb8

          SHA512

          1e7bfed0c67cbf093cb577ff5cf7da2e40594fbc3868562226dd77530130de3ab73cb54aa17d3a1311dcec460a1d4201b54fd058b207915434f636a9deab1e98

        • memory/100-0-0x00000000022F0000-0x0000000002341000-memory.dmp

          Filesize

          324KB

        • memory/100-1-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/100-12-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/100-10-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/100-11-0x00000000022F0000-0x0000000002341000-memory.dmp

          Filesize

          324KB

        • memory/2420-14-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2420-15-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2420-16-0x00000000028D0000-0x0000000002978000-memory.dmp

          Filesize

          672KB

        • memory/2420-17-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2420-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB

        • memory/2420-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

          Filesize

          728KB