Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 20:00

General

  • Target

    760e5c8f836e2a0054c4270fffdc54aee104b4ad109ee7edff4d82e50a57b7ceN.exe

  • Size

    1.3MB

  • MD5

    0acffb0cb5b3a1ad763e251e93f3a350

  • SHA1

    6297bd956e04c2f7cf5ccb8189a72f603412ddbe

  • SHA256

    760e5c8f836e2a0054c4270fffdc54aee104b4ad109ee7edff4d82e50a57b7ce

  • SHA512

    c31714756a46336c71c03216634766ee67970d5e0514a8f07188cfaecbd8b885ce8d0dace123816a083584b9275627f73b083b353c86e66792ce98d281c9decf

  • SSDEEP

    24576:ImUNJyJqb1FcMap2ATT5rmUNJyJqymUNJyJqb1FcMap2ATT5rmUNJyJqymUNJyJZ:ImV2AprmV1mV2AprmV1mV2AprmVQ

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
  • 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\760e5c8f836e2a0054c4270fffdc54aee104b4ad109ee7edff4d82e50a57b7ceN.exe
    "C:\Users\Admin\AppData\Local\Temp\760e5c8f836e2a0054c4270fffdc54aee104b4ad109ee7edff4d82e50a57b7ceN.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:2568
    • 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:2892

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CFIOOOZS\login[1].htm

          Filesize

          168B

          MD5

          d57e3a550060f85d44a175139ea23021

          SHA1

          2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

          SHA256

          43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

          SHA512

          0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

        • C:\Users\Admin\AppData\Local\Temp\4043.tmp

          Filesize

          593B

          MD5

          926512864979bc27cf187f1de3f57aff

          SHA1

          acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

          SHA256

          b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

          SHA512

          f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

        • C:\Windows\apppatch\svchost.exe

          Filesize

          1.3MB

          MD5

          edca53e0121ab47308f0cae9512a6f70

          SHA1

          4ae69485fb6cc0d242d789835d9452f6b641d302

          SHA256

          a01dd419ac9e609ae6ccd85e9a914245a1b6cb400cb4c2d6a3ce29d19c69722d

          SHA512

          c392bea206730a6882b81130999c835043c7d0a48ebc3c16c67170a2f14d14e0b68a3e93ba0b6cf7162198b7be5bd05936c225283c80b61d24e367637ba3dba2

        • memory/2568-9-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2892-10-0x0000000002720000-0x00000000027C8000-memory.dmp

          Filesize

          672KB

        • memory/2892-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB

        • memory/2892-159-0x0000000002B40000-0x0000000002BF6000-memory.dmp

          Filesize

          728KB