Analysis

  • max time kernel
    119s
  • 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
    04-01-2025 08:51

General

  • Target

    e23f3b1ff656ecec579d328bb1bcd049aef4c3b6b235863b591bd298f85e52b2N.exe

  • Size

    201KB

  • MD5

    629917fa69a09129402bdd870b161610

  • SHA1

    b40772cdbce5d0790dc728d3f3f6394190af12dc

  • SHA256

    e23f3b1ff656ecec579d328bb1bcd049aef4c3b6b235863b591bd298f85e52b2

  • SHA512

    ec77b819c2c834b24b52a0e54390697752c7922044b65716ff50400a57b7499f93a29fec268f4785197abc2d8e542e776269f5f7ca928bb84c762f21fda962be

  • SSDEEP

    6144:Ut++Jbojf5Vq5OC4qZhZcKYhc/ZfUozY:n+cff22qZhZcKYhc/

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 Program Files directory 30 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e23f3b1ff656ecec579d328bb1bcd049aef4c3b6b235863b591bd298f85e52b2N.exe
    "C:\Users\Admin\AppData\Local\Temp\e23f3b1ff656ecec579d328bb1bcd049aef4c3b6b235863b591bd298f85e52b2N.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:3940
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\Windows Defender\qetyhyg.com

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Program Files (x86)\Windows Defender\qetyhyg.com

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\apppatch\svchost.exe

    Filesize

    201KB

    MD5

    66274f749bef8754177ccf881134a3b2

    SHA1

    76fe78d01244140ffdd6625a3f498c7f8a920fcd

    SHA256

    d791031b47cb7dbe870566a0654cd8758d3dc64d266563b5633ae6e974eb2177

    SHA512

    0ada939eda5e8ab4839d55e9e70f40e009075a8472c0c0696fbdc8fbb53e7444020118178aa5d7e1a3a9951902a21942d02f954a4b0e286a0c07222adeeaa223

  • memory/3940-0-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/3940-1-0x00000000021F0000-0x000000000223F000-memory.dmp

    Filesize

    316KB

  • memory/3940-2-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/3940-11-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/3940-12-0x00000000021F0000-0x000000000223F000-memory.dmp

    Filesize

    316KB

  • memory/3940-14-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4852-15-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/4852-16-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/4852-17-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/4852-18-0x00000000029E0000-0x0000000002A84000-memory.dmp

    Filesize

    656KB

  • memory/4852-19-0x0000000000400000-0x0000000000491000-memory.dmp

    Filesize

    580KB

  • memory/4852-20-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-24-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-22-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-26-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-79-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-78-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-77-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-76-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-75-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-74-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-73-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-72-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-71-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-70-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-69-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-68-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-67-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-66-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-64-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-63-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-62-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-61-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-60-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-59-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-58-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-57-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-56-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-55-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-54-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-53-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-52-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-51-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-50-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-49-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-48-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-47-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-46-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-45-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-43-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-42-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-41-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-40-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-39-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-37-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-36-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-35-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-34-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-33-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-32-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-31-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-30-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-29-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-27-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-25-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-65-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-44-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-38-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB

  • memory/4852-28-0x0000000002BD0000-0x0000000002C82000-memory.dmp

    Filesize

    712KB