Analysis

  • max time kernel
    105s
  • 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
    02/11/2024, 09:37

General

  • Target
    2a7d37f90ccfc21cfe66906f06276c6c2c3c8cb15f8c15c1e273b7eca4710177N.exe
  • Size 399KB
  • Sample241102-llke6sscml
  • SHA256 2a7d37f90ccfc21cfe66906f06276c6c2c3c8cb15f8c15c1e273b7eca4710177
  • MD5 SHA1 SHA512 SSDEEP

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\2a7d37f90ccfc21cfe66906f06276c6c2c3c8cb15f8c15c1e273b7eca4710177N.exe
    "C:\Users\Admin\AppData\Local\Temp\2a7d37f90ccfc21cfe66906f06276c6c2c3c8cb15f8c15c1e273b7eca4710177N.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:4740
    • 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:3712

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        C54B.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C54B.tmp
        • Size 2KB
        • SHA256 7245342c1ceea7985e383818cc662d9a9cd95d362dddd29f325330fbca9b346a
        • MD5 SHA1 SHA512

        C54C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C54C.tmp
        • Size 42KB
        • SHA256 0e3ad19e573f0b2f91e2ca749b03ceea0a26d85739e713f93fb9f31b7713b677
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 399KB
        • SHA256 ebf098697a31578e2c134f995e108c9fc2a9cccc4dec0989798091f297eba438
        • MD5 SHA1 SHA512 SSDEEP

        memory/3712-10-0x0000000002730000-0x00000000027D8000-memory.dmp

        memory/3712-15-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-11-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/3712-178-0x0000000002B40000-0x0000000002BF6000-memory.dmp

        memory/4740-9-0x0000000000400000-0x000000000046A000-memory.dmp