Analysis

  • max time kernel
    137s
  • max time network
    140s
  • 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 00:39

General

  • Target

    757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.exe

  • Size

    686KB

  • MD5

    41c31496673aea407cff26affb85474e

  • SHA1

    b5aab9914abf40b12da28b2b06c7b245fe384217

  • SHA256

    757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb

  • SHA512

    c6c8723c420ed59d1edd29af44d3563a9c07efe56b61db6c7e67ee19643ce76b9826f7336ff19704874b1152b235e67e8a6df7c1011462ee9430a6ecb5eb1cfe

  • SSDEEP

    12288:vmWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgp:vmUNJyJqb1FcMap2ATT5itjCYZ3DSo

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\757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.exe
    "C:\Users\Admin\AppData\Local\Temp\757192e9a216b31e048629f52836ef9d1be816100c1bc2302b0e7cb4d9eb4cbb.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:2964
    • 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:3336

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TTJXD3SW\login[4].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

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

    Filesize

    42KB

    MD5

    007f41e031d7689bcb1982063363a28d

    SHA1

    2e5d4d3ecdf91044e22a84950198d62cae9d4f74

    SHA256

    94e4776835cb5575e6a94c257fe857802eab2ff753300493d384182015d96dac

    SHA512

    8fe64d9a934e614fd8e102b5e07eb8d38a670fa7d3f105187f4f1a3c872d87527d86a567733e1f275355ac4a39e43c1ef537a25f6232ed4e53101470a014974e

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

    Filesize

    481B

    MD5

    07d75ef77d3112c22df7639cf0e78b02

    SHA1

    93984265e4e24b8e0026b065ec54a32015937169

    SHA256

    1ed0e7b466dae6dbfd3363c425ff0e7ec9c62d6fa906320ccbcbfe0151364816

    SHA512

    a02254bc501210366ec279ded76e9a231a75e65d1effca435df981c4a64fccebe9357f928300ca27878f5d02bf03fcaf61ee13a0235be23e4364e5707fe6e307

  • C:\Users\Admin\AppData\Local\Temp\D507.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\D507.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

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

    Filesize

    481B

    MD5

    f0bfc9094469589860c799b1ffcd2c89

    SHA1

    b80efe260bddcd571ab664557fec3ed8d39c11eb

    SHA256

    bcf5d1e6bd3755433f05b92adf0f979d98dcdc4ce525379add0105c3c4916da0

    SHA512

    45cd1fef8e6c847b33ae1f925df04ae0a3ca73e05826a9e9396060b731a1a575a82576694a8afd49d1ca3f316c6a63ad033ca7dc97d4b9f933e5f4ed834309ea

  • C:\Users\Admin\AppData\Local\Temp\EB0F.tmp

    Filesize

    62KB

    MD5

    1d49d7ae0c1e8937de7bf6dadd25b9a7

    SHA1

    e0eb8cbc417e2b8baa2f9110a552e40ec8bce821

    SHA256

    16caef9b7e4cfc2ddf470b8d2940a4d44db2df824c25185932f54bd4bbf8a7e6

    SHA512

    ed05e1b587a78652fc81803b2eca6f9b40365c94e80cee01a1a97d426a164af5eaf7b5f014da3e3f238bb84358150df0a7ea24a7a6c2bc11f40dd14333ab5f45

  • C:\Windows\apppatch\svchost.exe

    Filesize

    686KB

    MD5

    581cf039fe5e907ccde2e3f5f7e1d58b

    SHA1

    aff22edd590defbe0007fad8142db4e8c4e94504

    SHA256

    5a655c1ddb9f3aac730d64752d3af5e1dc513bd9dc8c4451802aca37ad169414

    SHA512

    32362f647a2c4dd6dd50f254cf58b6de4758449928bd885603679afd695081ecb12f380f026c3fdab212925f024109f8f2aa153ef05b93badbdb34aa60f6666d

  • memory/3336-47-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-42-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-36-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-50-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-57-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-72-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-73-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-71-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-70-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-68-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-67-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-66-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-65-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-64-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-62-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-59-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-56-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-55-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-54-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-53-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-52-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-69-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-49-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-48-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-13-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-46-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-45-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-44-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-43-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-15-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-41-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-40-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-39-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-38-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-37-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-35-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-33-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-30-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-28-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-25-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-22-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-21-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-20-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-18-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-16-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-34-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-32-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-31-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-29-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-26-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-27-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-24-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-23-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-11-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-10-0x0000000002A00000-0x0000000002AA8000-memory.dmp

    Filesize

    672KB

  • memory/3336-19-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-17-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB

  • memory/3336-306-0x0000000002BB0000-0x0000000002C66000-memory.dmp

    Filesize

    728KB