Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/09/2024, 01:07

General

  • Target

    e06d50ec3f6776e2c20ae71001e0eeeb13edbd50dbdebf7515116be0f0083ecf.exe

  • Size

    212KB

  • MD5

    11be47e2d8a0e7fc6d8cfbaa62f965bf

  • SHA1

    88d0a2fba461bfc52d29d5ffb8b0f58cef47b4a6

  • SHA256

    e06d50ec3f6776e2c20ae71001e0eeeb13edbd50dbdebf7515116be0f0083ecf

  • SHA512

    0d3280eb635ec7c870b856060f11ebba4c01f4ae77ae43dc21442138215a665c2c447031d35a571cc1b2e45cdf13ee137ab90c01781998ea807d3e4c4e08b38e

  • SSDEEP

    6144:fob34ERMS/H7YAVsobrVn5G4E3Hi96mbQzJWFO8Omw4G:QboEj/8ASWM4Ki96/zqIKG

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\e06d50ec3f6776e2c20ae71001e0eeeb13edbd50dbdebf7515116be0f0083ecf.exe
    "C:\Users\Admin\AppData\Local\Temp\e06d50ec3f6776e2c20ae71001e0eeeb13edbd50dbdebf7515116be0f0083ecf.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:2176
    • 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:2460

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\E10F.tmp

          Filesize

          24KB

          MD5

          175b9290ab7d27aecd4e285213022aeb

          SHA1

          e8cb945fd916077d0ce60678b5f26997ebaad452

          SHA256

          73a23d9d93b9c015410fe6e7f230d3c392a4a8c5632dbd5d7fd8d1ff5848e280

          SHA512

          f1cad406b12e48d07da2e5f731438898f1027efba045753a26f6ea09a2ed6403633e70914e2ff211c8f6c0403cf5be70434cb93ad0c2b06b4bdedd39a4ca67b8

        • C:\Users\Admin\AppData\Local\Temp\E1B1.tmp

          Filesize

          481B

          MD5

          0e1cb5716ef9049405aa208d4cb2da8f

          SHA1

          ebe0c4d65eb1cf4628b063106280a515c3938bc9

          SHA256

          aa5231083370fa609de0a7313c15b904c10f8931d1e18a14befe825d01d933e6

          SHA512

          40d46d4ce5ca7e8341b625816382b110c00c3ce2e8429828a69898023fe139854ec0c7f5eba0cfcda032a4cfcca806199cd8ba5827626023c3692b58cbf19678

        • \Windows\AppPatch\svchost.exe

          Filesize

          212KB

          MD5

          86fb254e7e6607fc743989235c384859

          SHA1

          ac6dc94f01aa642a4acf37b6dc82f12666dd4349

          SHA256

          654d1c18101f875d5d3893ee668d3f30afce17051ad4ef651f37e28a11e26326

          SHA512

          b108e31936b965a4486de7a2d40b7bf315e3c7313a6ca5b3016a2a74d683987bbca1b274081cdd543e45ca8065e719e2f44d84c140eb01264645c0034c154a16

        • memory/2176-0-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2176-1-0x0000000000300000-0x0000000000351000-memory.dmp

          Filesize

          324KB

        • memory/2176-2-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2176-17-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2176-16-0x0000000000300000-0x0000000000351000-memory.dmp

          Filesize

          324KB

        • memory/2176-15-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2460-19-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2460-20-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2460-21-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2460-25-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-32-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-30-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-33-0x0000000000400000-0x00000000005BA000-memory.dmp

          Filesize

          1.7MB

        • memory/2460-28-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-26-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-22-0x0000000001E20000-0x0000000001EC8000-memory.dmp

          Filesize

          672KB

        • memory/2460-34-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-38-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-36-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-47-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-52-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-84-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-83-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-82-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-81-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-80-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-79-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-78-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-77-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-76-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-75-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-74-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-73-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-72-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-71-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-70-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-69-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-68-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-67-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-66-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-65-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-64-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-63-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-62-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-60-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-59-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-58-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-57-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-56-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-55-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-54-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-53-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-51-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-50-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-49-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-48-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-46-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-45-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-43-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-42-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-41-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-61-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-44-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB

        • memory/2460-40-0x00000000024E0000-0x0000000002596000-memory.dmp

          Filesize

          728KB