Analysis

  • max time kernel
    111s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2024 03:03

General

  • Target

    8fe8dfa61cad1d076e6013e07c3105bc65e92ea3e0387f003961779072cebc0cN.exe

  • Size

    212KB

  • MD5

    03a0924385387186617bd07c6ecda030

  • SHA1

    5eda62b6642fa0699c49dab9f5467fae0e305014

  • SHA256

    8fe8dfa61cad1d076e6013e07c3105bc65e92ea3e0387f003961779072cebc0c

  • SHA512

    f0bed6935cbb5d0014f7dfde2146ec2ec902aab7ea8c416348b9213cfab0476b727f0ccfc6146219ae51b8ac37373f1422e5fb834abab5cce2503266167fa7fc

  • SSDEEP

    3072:5GwPsm1VrwxOsf0juzv8j4P1Hr6krr4IEhx9QZe2gO9mG9UHA30Vt3E/vDjb:5G/iVkO20SFgBhxtW9mG9+Umt3Ezjb

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
  • 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\8fe8dfa61cad1d076e6013e07c3105bc65e92ea3e0387f003961779072cebc0cN.exe
    "C:\Users\Admin\AppData\Local\Temp\8fe8dfa61cad1d076e6013e07c3105bc65e92ea3e0387f003961779072cebc0cN.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:2000
    • 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:4804

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8B3ZU6S9\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\C142.tmp

    Filesize

    42KB

    MD5

    26d74c6c35f0e608c4ab79e357415296

    SHA1

    fd3a87a7b65e9fde84b5f03fb0cc0431bb9f7256

    SHA256

    d219f7f1381d20a8837425149181c142ea6ccb42d7ee8153bd640c8534410cf9

    SHA512

    b44f6e7c1c14e3e90cbe7bb1ede74d53b4c8217baebebf8b2bbaf9888da0a2e8ba4174ad5e30bfb0a6351802d8e9d787f8f60eeed6d2df6867dddfc8ca8fe77f

  • C:\Users\Admin\AppData\Local\Temp\E774.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\FA7A.tmp

    Filesize

    61KB

    MD5

    a2f8503c5bece13f9ffd5c4371166da9

    SHA1

    f80baf620af4974440bc07813188b26124ef32e3

    SHA256

    022c2c9aefd6a201549ab2434c40db0043cf4df0a5af142fca1eb69dcd67a333

    SHA512

    765a8476e0c42bd3e96d9ab043e9852a4b3d447b6c97760e9528e5b7d10b8a08598a98fbb810c9cb765a0515b30f3d0adc30b39b50e98abebe628fbc0746b950

  • C:\Windows\apppatch\svchost.exe

    Filesize

    212KB

    MD5

    2e30a66bf32fc4f9186b536aded19605

    SHA1

    b107589e7437669aea9cc73ce334953ccc901b38

    SHA256

    5b7f6b23303057de2ad98cd24930aa63d41f781bd62af24671baa174dd48d723

    SHA512

    bedb80b047096e3691b4127ef9d13b8cce65e6baf074eb02277bfbbbf5df05e62fce1c079cfdbeb8c377d3ea9389bfb44ea0a30379de7eb70a46fa2445c020cb

  • memory/2000-0-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/2000-1-0x00000000023B0000-0x0000000002401000-memory.dmp

    Filesize

    324KB

  • memory/2000-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2000-15-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2000-14-0x00000000023B0000-0x0000000002401000-memory.dmp

    Filesize

    324KB

  • memory/2000-13-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/4804-62-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-56-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-18-0x0000000002B50000-0x0000000002BF8000-memory.dmp

    Filesize

    672KB

  • memory/4804-19-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/4804-20-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-24-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-22-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-30-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-37-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-79-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-78-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-77-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-76-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-75-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-74-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-72-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-71-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-70-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-69-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-68-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-67-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-66-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-65-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-64-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-63-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-16-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/4804-61-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-60-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-59-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-58-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-57-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-17-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/4804-54-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-53-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-51-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-49-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-50-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-48-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-47-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-46-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-45-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-44-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-43-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-42-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-41-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-40-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-39-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-38-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-36-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-35-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-34-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-33-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-32-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-31-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-29-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-28-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-27-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-26-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-25-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-12-0x0000000000400000-0x00000000005B8000-memory.dmp

    Filesize

    1.7MB

  • memory/4804-73-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-55-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB

  • memory/4804-52-0x0000000002F40000-0x0000000002FF6000-memory.dmp

    Filesize

    728KB