Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/10/2024, 20:41

General

  • Target
    d83acf32a536bb28194ac79a896d6d956f19bad746f060ac0b6a8e7d6ac7eb18N.exe
  • Size 212KB
  • Sample241022-zgtd6sshpg
  • SHA256 d83acf32a536bb28194ac79a896d6d956f19bad746f060ac0b6a8e7d6ac7eb18
  • 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

    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\d83acf32a536bb28194ac79a896d6d956f19bad746f060ac0b6a8e7d6ac7eb18N.exe
    "C:\Users\Admin\AppData\Local\Temp\d83acf32a536bb28194ac79a896d6d956f19bad746f060ac0b6a8e7d6ac7eb18N.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:3820
    • 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:208

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        login[3].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9IEW0KLU\login[3].htm
        • Size 168B
        • SHA256 43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
        • MD5 SHA1 SHA512

        2327.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\2327.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        3268.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\3268.tmp
        • Size 42KB
        • SHA256 3733d78deb0bc2fa0e3ffcfc7fcce47ddb2fd6dfdb929417f45db42f9a72f237
        • MD5 SHA1 SHA512 SSDEEP

        3268.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\3268.tmp
        • Size 42KB
        • SHA256 261d7829a72273c3b009d3e3cf09c29ee02ebf9d55db90fd24379ce9ffdd06fe
        • MD5 SHA1 SHA512 SSDEEP

        9F14.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9F14.tmp
        • Size 24KB
        • SHA256 796c486a45dbff3afd8c26ba48b5becf1636a69e14da1130f9e817490618eb7a
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 212KB
        • SHA256 ba891389ef77bdbf7a326e0be6bd153e43629da05863fc740af758db6d2477a7
        • MD5 SHA1 SHA512 SSDEEP

        memory/208-56-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-53-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-19-0x0000000000400000-0x00000000005B8000-memory.dmp

        memory/208-20-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-22-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-24-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-25-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-48-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-79-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-78-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-77-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-76-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-75-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-74-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-73-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-72-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-71-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-70-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-69-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-68-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-66-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-65-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-64-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-63-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-62-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-61-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-60-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-59-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-58-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-57-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-12-0x0000000000400000-0x00000000005B8000-memory.dmp

        memory/208-55-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-54-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-49-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-13-0x0000000000400000-0x00000000005B8000-memory.dmp

        memory/208-50-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-52-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-47-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-46-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-45-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-44-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-42-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-40-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-39-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-37-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-38-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-36-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-35-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-34-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-33-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-32-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-31-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-30-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-29-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-28-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-27-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-67-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-51-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-43-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-41-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-26-0x00000000029F0000-0x0000000002AA6000-memory.dmp

        memory/208-17-0x0000000000400000-0x00000000005B8000-memory.dmp

        memory/208-18-0x0000000002800000-0x00000000028A8000-memory.dmp

        memory/3820-0-0x0000000000400000-0x00000000005B8000-memory.dmp

        memory/3820-2-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3820-1-0x0000000002360000-0x00000000023B1000-memory.dmp

        memory/3820-16-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/3820-15-0x0000000002360000-0x00000000023B1000-memory.dmp

        memory/3820-14-0x0000000000400000-0x00000000005B8000-memory.dmp