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Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/01/2025, 06:03

General

  • Target

    27722bfaca44cf30d85f7282ae3f9ae70fb5304a3dc5420310c227d2f75f5bc9N.exe

  • Size

    213KB

  • MD5

    472c1634fd95f1edfe18737843186440

  • SHA1

    0a11dbef54327f8162ac3324de735d46cc8caa3b

  • SHA256

    27722bfaca44cf30d85f7282ae3f9ae70fb5304a3dc5420310c227d2f75f5bc9

  • SHA512

    c831b5e5676f8ac155c6b9b6bbc339d528eb184543398b0a8d268df3b63daaa6fd453694da3c32f5eeba6747732f03d9e84339dbffc367c1541bd026d10a81a2

  • SSDEEP

    6144:EQfbXnEreyARNf+fIfvEEDi3EJ3FzbPotDy:TXkej+f4VDOEVdbgt

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
  • 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\27722bfaca44cf30d85f7282ae3f9ae70fb5304a3dc5420310c227d2f75f5bc9N.exe
    "C:\Users\Admin\AppData\Local\Temp\27722bfaca44cf30d85f7282ae3f9ae70fb5304a3dc5420310c227d2f75f5bc9N.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:1496
    • 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:3196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\B307.tmp

    Filesize

    24KB

    MD5

    73d9d3d736bd7b3c15456622e943034a

    SHA1

    1fb258dbedf33e9b4a215ebc1ba1a2f172d72e26

    SHA256

    5a87123bf8369a205b9e24fd457e6ed7dd76daf4ac5eef82f8e6d5a85ba8bee1

    SHA512

    957981e091219958602baa58e6637546891616e77f77de18d0e1059bcf3835b023457731fea02d5ffb70a82d0830ab2014c5d6e4ae669e255c31d683eb209eab

  • C:\Users\Admin\AppData\Local\Temp\B3D8.tmp

    Filesize

    481B

    MD5

    48bbc84329af558cde954cb1d8bb10ad

    SHA1

    d111d5b48737727ff04dc9ee7de1091a2a6518f1

    SHA256

    99e69cf98707f332850c4b6c43908ec4b1213125d1ed04ca88c7e7fd2ea1855e

    SHA512

    e6ed917134603e21550a610e1282680bbde1358b1d7d73f24b733331e4948ac2295a1b6b8e4e0eedc71a6b895688a8240c42e63e335bf293d518100cf36c73d0

  • C:\Windows\apppatch\svchost.exe

    Filesize

    213KB

    MD5

    8089f5d3609debb9550e8d6f8e49be35

    SHA1

    f497b098ffbad3fdf7eda3c0354085b43b12411b

    SHA256

    a2bf8bbe8b038449c4e8be6fd3f0269f5716b2de16fc85e9e6709a6b6d6cf900

    SHA512

    4e8c9cb28d5ad69f46363db32a4ce495daf2363cb424c720099b3af4981480e7a49940237ae25a4b196ca774f864f037de9627b96e1e981e5c11c848a0d6cf7f

  • memory/1496-0-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/1496-1-0x00000000023E0000-0x0000000002431000-memory.dmp

    Filesize

    324KB

  • memory/1496-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1496-15-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1496-14-0x00000000023E0000-0x0000000002431000-memory.dmp

    Filesize

    324KB

  • memory/1496-12-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/3196-16-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/3196-13-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/3196-17-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/3196-18-0x0000000002C00000-0x0000000002CA8000-memory.dmp

    Filesize

    672KB

  • memory/3196-19-0x0000000000400000-0x000000000064B000-memory.dmp

    Filesize

    2.3MB

  • memory/3196-20-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-22-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-24-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-25-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-33-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-79-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-78-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-77-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-76-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-75-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-74-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-73-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-72-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-71-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-69-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-68-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-67-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-66-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-65-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-64-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-63-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-62-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-61-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-60-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-59-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-58-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-57-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-55-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-54-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-53-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-52-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-51-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-50-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-48-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-47-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-46-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-45-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-41-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-43-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-42-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-40-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-39-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-38-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-37-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-35-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-34-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-32-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-31-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-30-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-29-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-28-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-27-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-26-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-70-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-56-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-49-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-44-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB

  • memory/3196-36-0x0000000002DF0000-0x0000000002EA6000-memory.dmp

    Filesize

    728KB