Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2024, 09:25

General

  • Target
    d5e706f40847da2c7ec3eb13478044b85c6714ba23a7056cd20929be29ee4c81.exe
  • Size 218KB
  • Sample241126-ldvaea1qan
  • SHA256 d5e706f40847da2c7ec3eb13478044b85c6714ba23a7056cd20929be29ee4c81
  • 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\d5e706f40847da2c7ec3eb13478044b85c6714ba23a7056cd20929be29ee4c81.exe
    "C:\Users\Admin\AppData\Local\Temp\d5e706f40847da2c7ec3eb13478044b85c6714ba23a7056cd20929be29ee4c81.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:2124
    • 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:1912

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 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        login[2].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L6PPXFHA\login[2].htm
        • Size 168B
        • SHA256 43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c
        • MD5 SHA1 SHA512

        9E1C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9E1C.tmp
        • Size 61KB
        • SHA256 26504619662863b2ee38d35e9b808c4c2d42b326311f99e86ca973d1a605c23b
        • MD5 SHA1 SHA512 SSDEEP

        C4D9.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C4D9.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        D2FD.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\D2FD.tmp
        • Size 42KB
        • SHA256 32291ba9c90cff86b6f30be72d93f623fb84a8328ba35552e4ddb6bbdb44bf64
        • MD5 SHA1 SHA512 SSDEEP

        D30E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\D30E.tmp
        • Size 24KB
        • SHA256 de883124da217dca52aefb877b0e3864e12064e6cf3765ca967e43d48f9fbb95
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 218KB
        • SHA256 d29a51951c3e992d0d51a5ff1f0e73e14fc3b28fba5e5911847bd5beacb49f9b
        • MD5 SHA1 SHA512 SSDEEP

        memory/1912-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

        memory/1912-14-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/1912-15-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/1912-17-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/1912-16-0x00000000028D0000-0x0000000002978000-memory.dmp

        memory/2124-0-0x0000000002640000-0x0000000002691000-memory.dmp

        memory/2124-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/2124-11-0x0000000000400000-0x00000000005AE000-memory.dmp

        memory/2124-13-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/2124-12-0x0000000002640000-0x0000000002691000-memory.dmp