Analysis

  • max time kernel
    111s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2024 14:51

General

  • Target

    fe469915a1969d5644959037c8c062cb966e5788f2f93d295567a7ac2d24cebeN.exe

  • Size

    218KB

  • MD5

    6930e2011b3f745fed11e35cf1dde700

  • SHA1

    a240dc9b32e6c3ca0623883cad1ddee99febaaef

  • SHA256

    fe469915a1969d5644959037c8c062cb966e5788f2f93d295567a7ac2d24cebe

  • SHA512

    7074c7789c7f1bfa6b0835b65ba9a8de0039764196baa689fa70dce37092d6459d9db8b70ebd42151cc00b89f21bc8de1cd49b7f6ad7135932c6f124b67b50ae

  • SSDEEP

    3072:Xvm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:f1SyAJp6rjn1gOObn4b6h9h

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\fe469915a1969d5644959037c8c062cb966e5788f2f93d295567a7ac2d24cebeN.exe
    "C:\Users\Admin\AppData\Local\Temp\fe469915a1969d5644959037c8c062cb966e5788f2f93d295567a7ac2d24cebeN.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:1852
    • 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:4832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9PMCFZKU\login[4].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\5EA.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\5EA.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\DFF6.tmp

    Filesize

    60KB

    MD5

    d800919722305c3a95af7d45ed94ca0b

    SHA1

    b28eab5a7b34130b03c1ec9383c9f610d16f94ce

    SHA256

    af5743fc227dff4237a216b2c7eff72d16a8aeacdae275759d14b9a8e292ba79

    SHA512

    1032b5cb160ae523ff060ffa84271df29cf1d22380b60ff7cee59a9d70adec1ab9722ff76c3f5aa877c1fdf595a1d9e42a4a5abbe2bbe71da55493970fc92ade

  • C:\Users\Admin\AppData\Local\Temp\E0F4.tmp

    Filesize

    42KB

    MD5

    f3137deff507bf93db435567cf0c8eba

    SHA1

    08a2c42ae1f2ec30bba79848a85837ad6a066c5c

    SHA256

    9eb3762e4d59dc39e577f1d3f78ab98d73c5851832b3e867eb4c1bfda98f64fb

    SHA512

    274b492449d61e9a903ad2b762f7b97feee151febe8a2f19bb4645c60f71436dad3c4db10a19294f7e44a301c4bb5bbda92e8677221e2cf0793cc95c752ab0e5

  • C:\Users\Admin\AppData\Local\Temp\E0F5.tmp

    Filesize

    481B

    MD5

    b9bef73bc20b94a0de222f21f9d2e881

    SHA1

    176cb11d9dee244178d32fb871786304206177ea

    SHA256

    0aad44a01360bc604f12c26d522430ad8ac076659b3d2166ace133163c7966fa

    SHA512

    82dee3aa79019025543fc23a559030de68330e6a2b63b0300c768473467614a68008f53ed5d8a05956a6c8fcf0c46d09b32e6231946b70dfa8f6149b86220383

  • C:\Windows\apppatch\svchost.exe

    Filesize

    218KB

    MD5

    f89c45dae2cb2b0b754d08aadc3b1f9e

    SHA1

    47a5b4f851de777ecd206dd9fa7b33ca43685d62

    SHA256

    0e808dc7fe508a530c46650ae15b59d8c8a840f488a360b554143b9545c9a79d

    SHA512

    e35720897b9288eadae60331d48ea947cbc2ade97d3124bf5ab99d8ef5b7d87bf6412b5c493e028457c15f8ceb68e0f73982587353a55297c0668679c9b1cc88

  • memory/1852-0-0x00000000022F0000-0x0000000002341000-memory.dmp

    Filesize

    324KB

  • memory/1852-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1852-11-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/1852-13-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1852-12-0x00000000022F0000-0x0000000002341000-memory.dmp

    Filesize

    324KB

  • memory/4832-57-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-51-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-20-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-18-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-27-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-30-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-79-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-78-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-77-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-76-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-75-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-74-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-72-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-71-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-70-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-69-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-67-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-66-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-65-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-64-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-63-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-62-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-61-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-60-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-59-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-58-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-17-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4832-56-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-55-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-54-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-53-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-22-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-50-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-49-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-48-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-47-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-44-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-45-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-43-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-42-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-40-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-39-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-37-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-35-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-34-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-33-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-32-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-31-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-29-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-28-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-26-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-25-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-24-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-73-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-68-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-52-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-46-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-41-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-16-0x00000000028D0000-0x0000000002978000-memory.dmp

    Filesize

    672KB

  • memory/4832-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4832-14-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/4832-38-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-36-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB

  • memory/4832-23-0x0000000002D00000-0x0000000002DB6000-memory.dmp

    Filesize

    728KB