Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19/09/2024, 13:24

General

  • Target

    dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.exe

  • Size

    218KB

  • MD5

    25757022421287caca664319e9ed57a0

  • SHA1

    11604506442aa9b8a232c6515062a28298c4fc86

  • SHA256

    dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577

  • SHA512

    e1add428127d03aa792c55e733a6fe7edad8210027feba968bced74908bb25bb7c4996a698c0def8aefbe8d264adec8665b26ec08457cc4ebdff1e669ea58e60

  • SSDEEP

    3072:Evm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:S1SyAJp6rjn1gOObn4b6h9h

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\dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.exe
    "C:\Users\Admin\AppData\Local\Temp\dc66742743486d506681ccc8dca238a1193be0f0815969e64d2e626271b7f577N.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:2648
    • 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:2760

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\876F.tmp

          Filesize

          481B

          MD5

          3f9acf573c44fa83d4782c8c1eea227a

          SHA1

          6275c44e533d8db41b19fda1089ab3230b0e33ba

          SHA256

          b88f27de192f76d9627eb1ca579296dd11817ed212a5fef1cdba0490fee4cb08

          SHA512

          e37cb08ed9329e60b97de1c680d84963af48ef3c365b71cfb81cc4f9dff6d4200a001978f7de95ca7f7994db55da21c47cc52d1245d1d2c032d8d1aa2f18d37b

        • \Windows\AppPatch\svchost.exe

          Filesize

          218KB

          MD5

          1f26731d19816fbf4d5d6cfa946322f0

          SHA1

          13c339b5313de261bc5922322a56d5df076ea180

          SHA256

          23044a3c88a45057d5380cd2de3684fc880671406ba94d3b0be959886cd4b370

          SHA512

          7b82eded2275bce5e68132199613e7abaec60f70797596edc75ce18c0d4e67720c2773a3825c68af29c69d4b021dda734351ddede96db725c78a8c506a2dfd80

        • memory/2648-0-0x0000000000220000-0x0000000000271000-memory.dmp

          Filesize

          324KB

        • memory/2648-1-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2648-17-0x0000000000400000-0x000000000045F000-memory.dmp

          Filesize

          380KB

        • memory/2648-16-0x0000000000220000-0x0000000000271000-memory.dmp

          Filesize

          324KB

        • memory/2648-15-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2760-72-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-56-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-30-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-26-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-31-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2760-24-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-22-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-28-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-32-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-36-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-34-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-38-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-49-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-84-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-83-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-82-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-81-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-80-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-79-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-78-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-77-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-76-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-74-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-73-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-19-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2760-18-0x0000000000400000-0x00000000005AE000-memory.dmp

          Filesize

          1.7MB

        • memory/2760-71-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-70-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-20-0x00000000023C0000-0x0000000002468000-memory.dmp

          Filesize

          672KB

        • memory/2760-69-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-53-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-66-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-65-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-64-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-63-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-62-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-61-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-59-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-58-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-57-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-68-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-55-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-54-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-67-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-52-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-51-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-50-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-48-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-47-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-46-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-45-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-44-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-75-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-43-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-42-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-60-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-41-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-40-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB

        • memory/2760-39-0x0000000002570000-0x0000000002626000-memory.dmp

          Filesize

          728KB