Analysis

  • max time kernel
    145s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    18-01-2025 06:15

General

  • Target

    94576fc100985a117b1fd642453c546f8cd7ef962d0fd5758d5ddfeb2097baf8.exe

  • Size

    355KB

  • MD5

    003eea5e06158cf2200efabc4b490117

  • SHA1

    760ab8f9c9a9c2166cb5314395ee3f94235b6015

  • SHA256

    94576fc100985a117b1fd642453c546f8cd7ef962d0fd5758d5ddfeb2097baf8

  • SHA512

    67fb58f081d0ebbcc8b57ebd2e5b218264d8b5e6aa19492511408344f5483d3a6f6a434351057f492110c7262883e277193c7be4d7571731dec554dcc76d9990

  • SSDEEP

    6144:VgEmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Ei:TmWhND9yJz+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\94576fc100985a117b1fd642453c546f8cd7ef962d0fd5758d5ddfeb2097baf8.exe
    "C:\Users\Admin\AppData\Local\Temp\94576fc100985a117b1fd642453c546f8cd7ef962d0fd5758d5ddfeb2097baf8.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:2308
    • 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:1748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Windows\AppPatch\svchost.exe

    Filesize

    355KB

    MD5

    fb661b01b428027a1aa934052bb05fa7

    SHA1

    881518baaa402d29399fec7583225b0e4639d0c3

    SHA256

    3b8eb9864482f03296d18ab8d3c9103da9a983a14416424368a24e8012ecd90a

    SHA512

    467bb16bbd498e290b8bc19f70424948e7f8439a5f0a961ca057aca839caf862e0516e512b0e91686b910e1b8ba2f3b743da16e93532ac53241d77039900328d

  • memory/1748-14-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-16-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-22-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-20-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-18-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-24-0x00000000002B0000-0x0000000000358000-memory.dmp

    Filesize

    672KB

  • memory/1748-25-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-27-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-29-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-32-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-36-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-54-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-77-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-76-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-75-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-74-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-73-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-72-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-71-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-70-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-69-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-68-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-67-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-66-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-65-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-64-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-63-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-62-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-61-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-60-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-59-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-58-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-57-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-56-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-55-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-53-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-52-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-51-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-50-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-49-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-48-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-47-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-46-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-45-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-44-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-43-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-42-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-41-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-40-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-39-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-37-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-35-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-34-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-33-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-31-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-38-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/1748-190-0x0000000002260000-0x0000000002316000-memory.dmp

    Filesize

    728KB

  • memory/2308-12-0x0000000000100000-0x000000000015F000-memory.dmp

    Filesize

    380KB