Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 12:12

General

  • Target

    2b05c4a36ab6245b80384d16424f6b51eef7998253a860004efabee8303997c4N.exe

  • Size

    686KB

  • MD5

    0250626b95d52fad3640bbdb4af79290

  • SHA1

    685fc21b80ba037e9d4a69939eb23d99ce0d0a93

  • SHA256

    2b05c4a36ab6245b80384d16424f6b51eef7998253a860004efabee8303997c4

  • SHA512

    791591b6abf5cd1ef40a7ee4537a1156dd8788e8ca914852b392916880db4ec4cb788bd0384d0b0457e8ac40fce2be29c15febff8a220cbc685d4301c4e09051

  • SSDEEP

    12288:nmWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgp:nmUNJyJqb1FcMap2ATT5itjCYZ3DSo

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
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2b05c4a36ab6245b80384d16424f6b51eef7998253a860004efabee8303997c4N.exe
    "C:\Users\Admin\AppData\Local\Temp\2b05c4a36ab6245b80384d16424f6b51eef7998253a860004efabee8303997c4N.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:2792
    • 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:3004

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Windows\AppPatch\svchost.exe

          Filesize

          686KB

          MD5

          85625f30f2d4d78e32945ab6cfe11bb7

          SHA1

          ac86e850b98f8a2966b5e6c84f7ef4f4dd486c00

          SHA256

          d57a7cc28bb5417631685279b84e269a788c09990a68c6b6aff3b5aa1516fded

          SHA512

          0f4d2e9ae6560ba26f7bd2e0922c42f3a5adf65be849591790c642f3d72a54e9a5786f9f259bcb870a6e96ce9bc40314571292e7626ba04b0e90036c79a9701d

        • memory/2792-13-0x0000000000400000-0x00000000004B7000-memory.dmp

          Filesize

          732KB

        • memory/3004-14-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-20-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-24-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-22-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-18-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-16-0x0000000001FD0000-0x0000000002078000-memory.dmp

          Filesize

          672KB

        • memory/3004-25-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-29-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-27-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-38-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-61-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-77-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-76-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-75-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-74-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-73-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-72-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-71-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-70-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-69-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-68-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-67-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-66-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-65-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-64-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-63-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-60-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-59-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-58-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-57-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-56-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-55-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-54-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-53-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-52-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-50-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-49-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-48-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-47-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-46-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-45-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-44-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-43-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-42-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-41-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-40-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-39-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-62-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-37-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-36-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-35-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-51-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-34-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-33-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-32-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-31-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB

        • memory/3004-190-0x0000000002460000-0x0000000002516000-memory.dmp

          Filesize

          728KB