Analysis

  • max time kernel
    111s
  • max time network
    117s
  • 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, 02:01

General

  • Target
    0b0f022ba403f75b63a527156dcaa4b6538f22cc1aa8daf8d6ac9112f19ac8cf.exe
  • Size 208KB
  • Sample241126-cfmtnsyjdw
  • SHA256 0b0f022ba403f75b63a527156dcaa4b6538f22cc1aa8daf8d6ac9112f19ac8cf
  • 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\0b0f022ba403f75b63a527156dcaa4b6538f22cc1aa8daf8d6ac9112f19ac8cf.exe
    "C:\Users\Admin\AppData\Local\Temp\0b0f022ba403f75b63a527156dcaa4b6538f22cc1aa8daf8d6ac9112f19ac8cf.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:4472
    • 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:1076

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\8B3ZU6S9\login[3].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        7659.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\7659.tmp
        • Size 1KB
        • SHA256 9b4921d3ff32f970ed345f41a38b69d06761d62666339172cb45b5686eb5d216
        • MD5 SHA1 SHA512

        7669.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\7669.tmp
        • Size 24KB
        • SHA256 a95f6fcf7561bc9e00238713ee7b8ca4bb63088449fb3d4a4501dce14ab434ff
        • MD5 SHA1 SHA512 SSDEEP

        77E7.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\77E7.tmp
        • Size 42KB
        • SHA256 c46eee30cf9717771eb0df0a341baaa6baf81532f5f56ec30f7e925eb3394ddc
        • MD5 SHA1 SHA512 SSDEEP

        81D5.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\81D5.tmp
        • Size 593B
        • SHA256 7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30
        • MD5 SHA1 SHA512

        81D5.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\81D5.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        9522.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\9522.tmp
        • Size 61KB
        • SHA256 b0fd1502df4747bb8c986106c941652e7c2cb64694612433fb70eb10c15cd100
        • MD5 SHA1 SHA512 SSDEEP

        svchost.exe

        • Path C:\Windows\apppatch\svchost.exe
        • Size 208KB
        • SHA256 4475b506e163a511295085b06da2f0ae68356c901ed41fbd0524688ec94c3360
        • MD5 SHA1 SHA512 SSDEEP

        memory/1076-53-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-46-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-33-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-35-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-50-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-79-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-78-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-77-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-76-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-75-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-72-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-22-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-71-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-70-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-69-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-68-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-66-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-18-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-65-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-64-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-63-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-62-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-61-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-60-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-59-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-58-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-57-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-56-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-55-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-54-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-14-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/1076-51-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-73-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-20-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-40-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-48-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-45-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-44-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-43-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-42-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-41-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-38-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-37-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-36-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-34-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-32-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-31-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-30-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-29-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-28-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-26-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-25-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-67-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-24-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-52-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-49-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-23-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-47-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-39-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-27-0x0000000002BB0000-0x0000000002C66000-memory.dmp

        memory/1076-15-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/1076-17-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/1076-16-0x0000000002A00000-0x0000000002AA8000-memory.dmp

        memory/4472-0-0x00000000021C0000-0x00000000021C3000-memory.dmp

        memory/4472-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4472-11-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/4472-13-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/4472-12-0x00000000021C0000-0x00000000021C3000-memory.dmp