Analysis

  • max time kernel
    140s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2025 08:29

General

  • Target

    e62d0b8746a975adc97c6fbd84540a8f7e5edc26cff561591d89f662d6dff967.exe

  • Size

    204KB

  • MD5

    96cb40d60731a362bceab2b3a1d65bae

  • SHA1

    6c5970ec6690fadbebc65f31bcc9502dd1117227

  • SHA256

    e62d0b8746a975adc97c6fbd84540a8f7e5edc26cff561591d89f662d6dff967

  • SHA512

    ee5dbc665fc0ad325f89903000cf3d3d26f595f8ce878f4de627fbb0bc9c2a7eccd2660496a9c3854759a6bd8aa01af3511d5f3e08bbe0b561eff2eca9d4c295

  • SSDEEP

    3072:r5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlAQ:rLexkuRaX41xoyJV65gzyZko+uc

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\e62d0b8746a975adc97c6fbd84540a8f7e5edc26cff561591d89f662d6dff967.exe
    "C:\Users\Admin\AppData\Local\Temp\e62d0b8746a975adc97c6fbd84540a8f7e5edc26cff561591d89f662d6dff967.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:2436
    • 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:736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\apppatch\svchost.exe

    Filesize

    204KB

    MD5

    825adb3a8d4e0a5ef109a3e7a869f00f

    SHA1

    f8fa95fcb990840d640c2479b00bd72c3a7cc15f

    SHA256

    50083254d261ce075b30f34e1d6a7d554af233428b0f6f8371f2b09dbe3905ac

    SHA512

    abc1c5da40a5a9432276567ea1127033024f9d376d591babed7a97e5d4c7285da60951bbe3fd9bf036b01180ad5c1dce226b447d6ff147b97f9db339aa2a1c83

  • memory/736-59-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-20-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/736-18-0x0000000002B40000-0x0000000002BE8000-memory.dmp

    Filesize

    672KB

  • memory/736-25-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-57-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-58-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-27-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-19-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/736-56-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-24-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-22-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-30-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-34-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-79-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-78-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-77-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-76-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-75-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-74-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-73-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-72-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-71-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-70-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-69-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-68-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-67-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-65-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-64-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-63-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-62-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-61-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-60-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-12-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/736-26-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-28-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-13-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/736-55-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-54-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-53-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-52-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-51-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-50-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-47-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-48-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-46-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-45-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-43-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-44-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-42-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-41-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-40-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-39-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-38-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-37-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-36-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-35-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-33-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-32-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-31-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-29-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-66-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/736-49-0x0000000002CF0000-0x0000000002DA6000-memory.dmp

    Filesize

    728KB

  • memory/2436-1-0x0000000000830000-0x0000000000881000-memory.dmp

    Filesize

    324KB

  • memory/2436-14-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2436-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2436-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2436-16-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2436-15-0x0000000000830000-0x0000000000881000-memory.dmp

    Filesize

    324KB