Analysis

  • max time kernel
    120s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-01-2025 00:50

General

  • Target

    fa3a51849b8be1d3a300f41bb10d6413e6a96fe60f73f3c9a7113ac90be6e69dN.exe

  • Size

    211KB

  • MD5

    2cbd5ef4ae1b04c8ae8353c2afc8cbe0

  • SHA1

    73f787ecc4c17c1933d2a19a39bd442c46dab9d1

  • SHA256

    fa3a51849b8be1d3a300f41bb10d6413e6a96fe60f73f3c9a7113ac90be6e69d

  • SHA512

    bd7f6a3267c29e22b26c554f7306eee5fb89143130d60b99d5a3caa6622dc56bfd12741cf71dbf485066dd899f430f28aed8cfdac9fb30af008ef31673b0e09a

  • SSDEEP

    6144:KrMoyX6dxajoPXA1nriwrw1cfCOSJcAb:gysxVY1nZ+b

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

  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 10 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.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa3a51849b8be1d3a300f41bb10d6413e6a96fe60f73f3c9a7113ac90be6e69dN.exe
    "C:\Users\Admin\AppData\Local\Temp\fa3a51849b8be1d3a300f41bb10d6413e6a96fe60f73f3c9a7113ac90be6e69dN.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4972

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Low\IE\1W6I923S\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Windows\apppatch\svchost.exe

    Filesize

    211KB

    MD5

    8dabed9ccd5178cb168c04823c1d6947

    SHA1

    4376613c009fe9edcf8d130c8c08fbaecf51273e

    SHA256

    ce9660b03638120d1b63d200a37f236a349b1db677f09a29cd75befb5f9f8675

    SHA512

    1f8f7b28601b424697a5992b5b805387cb0153af1a693010b491d4c919c366d4642a716585763785cf997ecf0f2b40908aca4e40ce02659554c6b208a4d93566

  • memory/4936-0-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4936-1-0x00000000021E0000-0x0000000002232000-memory.dmp

    Filesize

    328KB

  • memory/4936-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4936-17-0x00000000021E0000-0x0000000002232000-memory.dmp

    Filesize

    328KB

  • memory/4936-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4936-16-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4972-14-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4972-15-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4972-19-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4972-20-0x0000000002A00000-0x0000000002AAA000-memory.dmp

    Filesize

    680KB

  • memory/4972-21-0x0000000000400000-0x0000000000492000-memory.dmp

    Filesize

    584KB

  • memory/4972-22-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-26-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-24-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-33-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-38-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-81-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-80-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-79-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-78-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-77-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-75-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-74-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-73-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-72-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-71-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-69-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-67-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-66-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-64-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-63-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-62-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-60-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-59-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-58-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-57-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-56-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-55-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-54-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-53-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-52-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-50-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-49-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-46-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-45-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-44-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-42-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-41-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-40-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-39-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-37-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-36-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-35-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-34-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-32-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-31-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-30-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-76-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-70-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-68-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-65-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-61-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-28-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-51-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-48-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-47-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-27-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-43-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB

  • memory/4972-29-0x0000000002BB0000-0x0000000002C67000-memory.dmp

    Filesize

    732KB