Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    28/10/2024, 02:02

General

  • Target
    8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe
  • Size 208KB
  • Sample241028-cgdbmaxfkb
  • SHA256 8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954
  • 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
  • Loads dropped DLL 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 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe
    "C:\Users\Admin\AppData\Local\Temp\8f9ff92b2219b09bb54ad8e234d230decc58133bd607665a0d6f2a8a264ba954.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1652
    • 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:2336

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        login[1].htm

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\633SXO0D\login[1].htm
        • Size 162B
        • SHA256 9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a
        • MD5 SHA1 SHA512

        3CDA.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\3CDA.tmp
        • Size 481B
        • SHA256 63cccc8d21638c15b3cb45f6fb01027d19fcc653b28896c000f790262bfe26a8
        • MD5 SHA1 SHA512

        768C.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\768C.tmp
        • Size 1KB
        • SHA256 8fa3ffaea52cfc7bc7d19acb6bd10a1738863499a3c98ffad1c9dd2c405d0dbb
        • MD5 SHA1 SHA512

        C2FA.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C2FA.tmp
        • Size 42KB
        • SHA256 b663bf6b7794d45bda5203266f1dc28584ebf3b4d34932662ac71bc6e5fea338
        • MD5 SHA1 SHA512 SSDEEP

        C2FB.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\C2FB.tmp
        • Size 481B
        • SHA256 61ec0a1c561711ab502abc754be8101a810eeb9ea89150701de7d80e37528d5a
        • MD5 SHA1 SHA512

        D14E.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\D14E.tmp
        • Size 593B
        • SHA256 b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f
        • MD5 SHA1 SHA512

        svchost.exe

        • Path \Windows\AppPatch\svchost.exe
        • Size 208KB
        • SHA256 20e19daeeb8403614e9d20ddcc1f378b764ae914f9a16ef3d645b6bc3a293e64
        • MD5 SHA1 SHA512 SSDEEP

        memory/1652-0-0x00000000001D0000-0x00000000001D3000-memory.dmp

        memory/1652-1-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/1652-14-0x0000000000400000-0x000000000045F000-memory.dmp

        memory/1652-13-0x00000000001D0000-0x00000000001D3000-memory.dmp

        memory/1652-12-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/2336-69-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-61-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-19-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-29-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-33-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-31-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-36-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-39-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-56-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-81-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-80-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-79-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-78-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-77-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-76-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-75-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-74-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-73-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-72-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-71-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-70-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-21-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-67-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-27-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-66-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-65-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-64-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-63-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-62-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-28-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/2336-60-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-59-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-58-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-57-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-55-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-54-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-52-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-51-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-49-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-48-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-47-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-46-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-45-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-44-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-68-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-43-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-42-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-40-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-53-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-38-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-50-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-37-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-35-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-41-0x0000000001E70000-0x0000000001F26000-memory.dmp

        memory/2336-25-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-23-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-17-0x0000000000350000-0x00000000003F8000-memory.dmp

        memory/2336-16-0x0000000000400000-0x0000000000467000-memory.dmp

        memory/2336-15-0x0000000000400000-0x0000000000467000-memory.dmp