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Analysis

  • max time kernel
    114s
  • 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, 09:27

General

  • Target

    338d577a6bf6cec78c42e35d23eed589d94988907b662ee58596a6bf03a400bb.exe

  • Size

    375KB

  • MD5

    43ec7b4a5361bd7c0134584d1b312da3

  • SHA1

    76fef4a5401f4902afd5ec5c79f2b5f445fab105

  • SHA256

    338d577a6bf6cec78c42e35d23eed589d94988907b662ee58596a6bf03a400bb

  • SHA512

    ab6c8586712ef89d1f9cfa61b1421df2fa47acb9d0eb87deec1b6b9e50189d8adce50078fcacfce2f19f475550812cad0a13bfbe8b7f75e940f172b35626d8a6

  • SSDEEP

    6144:+3EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Eis:ZmWhND9yJz+b1FcMLmp2ATTSsds

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\338d577a6bf6cec78c42e35d23eed589d94988907b662ee58596a6bf03a400bb.exe
    "C:\Users\Admin\AppData\Local\Temp\338d577a6bf6cec78c42e35d23eed589d94988907b662ee58596a6bf03a400bb.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:2148
    • 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:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\O7SS9E07.htm

    Filesize

    2KB

    MD5

    a076dbde5130a07f16f388d11298afb2

    SHA1

    cc0e50b30de07b0886a25c4d171cb2fe79afab17

    SHA256

    c81b0d6821f695d773626adef6193c5c351e7768d7855e3bcfacd3bc394ac1ae

    SHA512

    0648685ec4743f41e2dea0ed9a033e683d8407d864d93f50820b0d1c99ae3c53db74dd39cfa416bbe6663a379c513f37b18f84194df5c4e3040d93de3234eca5

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\login[1].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\13B.tmp

    Filesize

    12KB

    MD5

    e1f035b24ce0e8137682b703d19315b5

    SHA1

    18712fd6ad888c146237d187332ccc904ff1f032

    SHA256

    117ea4f0f411e1aaeab307c087a57678abcba7e6aa96a5bd1f2d5d7026d453a0

    SHA512

    17a428fcea9d064e8318f0ef30da88c713209f5d591d2a4e9725d56663acdb96996569693804071aea17ddc793eade219409c4548e48d1ddc8814662236bae7d

  • C:\Users\Admin\AppData\Local\Temp\13B.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\150E.tmp

    Filesize

    24KB

    MD5

    89eaf6507dee1ff28ea043d34d83d3dc

    SHA1

    9364a0c66fc6bf0da95b6eb627f759b3028ad824

    SHA256

    64117963c0ac2806bc1acff9f32f97312d4cba02bd69d5ca92dc619dd340efeb

    SHA512

    ea2f5c721777b3f3c0477d382fa824278a4e7019ed102290cc905dab96133894887b93dde7ac115974d285d2f25883dbf0d1028d35d32640047546bcd2ec32ac

  • C:\Users\Admin\AppData\Local\Temp\41CC.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\5305.tmp

    Filesize

    24KB

    MD5

    bfab2a6b0ed7eb22466a8bb3a8e1b2b0

    SHA1

    69eea9887b79783d615272e92ba90ca72e1dd01d

    SHA256

    b8778cc3e6d0d09fa501cba9f3d17f74ffbf9437783b627f08f49bf6fb99130d

    SHA512

    534baeaf64f3974cf22564f13d8003f65f8c7303d36ae6b2d20b0e0664c73ebfbe5aac300ef8bdcab58e895f2f006ba61e104908dd4f3ee4da0fe0d79fc04817

  • C:\Users\Admin\AppData\Local\Temp\5327.tmp

    Filesize

    2KB

    MD5

    7808036f4507cbe750c73dc89ee45dd4

    SHA1

    1eb35534ea3fad52948c60b2a04e6184eb15163f

    SHA256

    e8a5e8a8933dd0c753ba47332d766368fa9c7a9343940e8ba697c75d697af24b

    SHA512

    aecda35f499c90022c39c9f44b52e7a5a12a26f0ec0ecca18ac0d805ebad3805d1af25a93863161a73b4412aff70c41126c10fa3d7d8bfcc8ad76c22eda23110

  • C:\Users\Admin\AppData\Local\Temp\6C37.tmp

    Filesize

    61KB

    MD5

    04ada17f3c5ce5aca8ba61b81ac819a3

    SHA1

    7426cfcb5385396246838160496b9552b0d05219

    SHA256

    b9c576f7201f58572f2df34f2a6832363dc2c5864f41c23190e9b9784b2aa01b

    SHA512

    27dc28ad4ffe6b3ab7f6ee00ce356aea04697938c0538a56eb3dbeb8c5ba0becf7cdc6fea9fb4c4c1db21ce33fcd512e2dbc86e1abe776e9a8009e1b61eb101e

  • C:\Users\Admin\AppData\Local\Temp\6C8A.tmp

    Filesize

    481B

    MD5

    833faf3c4726384c4a2ae85b7a68281b

    SHA1

    f40eaf6499cd689138c51b57200b6e5ec1c6b4cc

    SHA256

    3b34b0fdb5232d25237ff4c2cc68daae177d26ab5680977d2842d87127e9c9c5

    SHA512

    0cfde6bd497f119a21db78e3266aa8061f5a971274bf659dc2bba8027d8630420563fec327f8b71b26043269c5ede7f31d34c75f9ed30d475b479634f67b1623

  • C:\Windows\apppatch\svchost.exe

    Filesize

    375KB

    MD5

    d6c3ebc662aaed93e4c6870c336d82b0

    SHA1

    928c12835272656693d35a04becc44769aa4ab5d

    SHA256

    dc85c4a2478048b72ecba9ca0390aced1cdeddfd7b90bdb64c6a34e2a8877758

    SHA512

    a48daacee7f52b34153990141d49f819c03ca3ed23bb346c32571df0f4344cc2dde4be6a9df2709013e3e4ccd6cbb47cb77ad9743728fd00a8703e586ff08688

  • memory/2148-12-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2148-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2524-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-74-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-76-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-75-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-188-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2524-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/2524-13-0x0000000002730000-0x00000000027D8000-memory.dmp

    Filesize

    672KB

  • memory/2524-9-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/2524-314-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB