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
    31-10-2024 01:00

General

  • Target

    8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe

  • Size

    196KB

  • MD5

    0d3e2cd8851f42192e639b70e109e680

  • SHA1

    55b435c0bce90b295dc5dcc984453241938a4d7b

  • SHA256

    8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93b

  • SHA512

    2fcebe8b568e2c033d9dab06b024e257076ff2461b595e52f746ec5cf8934053b4b0ab06733b2faf7261c37cb5d7190aeec8cb09fe15b2f1b4aac0336213ff24

  • SSDEEP

    6144:0c6BtUaNMtLLowRg4uLhuMXUk4m5xnt0Vu:0juaWLJgzLMkvou

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 Program Files directory 34 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe
    "C:\Users\Admin\AppData\Local\Temp\8241892ff5c9b441458ea07eac9693a7f46234e90e3f5ac8d310356e7ec5c93bN.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:4472
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Windows Defender\gahyqah.com

    Filesize

    24KB

    MD5

    5506dcd109e80ce0e2dbd6954c6c252d

    SHA1

    e55360746004d99a295e261920e03a0c4482a9e8

    SHA256

    e9bc73616aeb4d3ed733a2d7ffc1684b88b05e961414a30499ef112e2be5d09b

    SHA512

    c0366e0c70600c186cc0bc10f79458b3ec06ef0bd83453286b9dbc1c77737b288de527435b2f2e5f06f784813d3e0d77fd2e8482a9fc782dfd36f82621dc5f73

  • C:\Program Files (x86)\Windows Defender\galyqaz.com

    Filesize

    42KB

    MD5

    2a7af4f68b7e85e3b71bf0464e097bb4

    SHA1

    70d68b5ccc1f51962161f5f0c146fa8dc8bf811a

    SHA256

    1edc6d2e96f7a6de965f3c35575ad539d57e00b605ccefcb9fa894b220a44cfc

    SHA512

    cfacf5fffbea469feb140db77631b29be224db49a12c7d4910bf84590de37d7e6897f2b8f43e52d91731ccefed18a7bb558af3b9f19b990c9eed57938b0e41c2

  • C:\Program Files (x86)\Windows Defender\puzylyp.com

    Filesize

    60KB

    MD5

    e83812816773ab1b56b24cb6a5df0b06

    SHA1

    46fd22f7266239b4a2010870800f16f3a1ce6d4a

    SHA256

    bcf7122d25f39a1a2030f9671f52c69610e18676e523675496399bd420f9d0fe

    SHA512

    1f06014a201d8e8c5a6a63031b495ccdc1df7ce59c84ef6ee0ccec26549ee741408de9fb1650f0937ca597df7ee23a4a572ce00b4c604a3da3d255a32fe97d3c

  • C:\Program Files (x86)\Windows Defender\qetyhyg.com

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • C:\Program Files (x86)\Windows Defender\qetyhyg.com

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Program Files (x86)\Windows Defender\qexyhuv.com

    Filesize

    114B

    MD5

    e89f75f918dbdcee28604d4e09dd71d7

    SHA1

    f9d9055e9878723a12063b47d4a1a5f58c3eb1e9

    SHA256

    6dc9c7fc93bb488bb0520a6c780a8d3c0fb5486a4711aca49b4c53fac7393023

    SHA512

    8df0ab2e3679b64a6174deff4259ae5680f88e3ae307e0ea2dfff88ec4ba14f3477c9fe3a5aa5da3a8e857601170a5108ed75f6d6975958ac7a314e4a336aed0

  • C:\Program Files (x86)\Windows Defender\qexyhuv.com

    Filesize

    114B

    MD5

    bfde1e9e9c32c1681a16139450c6909d

    SHA1

    7e669b927e6a75a10a0ca29e38e58ddcb49b725e

    SHA256

    e0d020ba1cb6506cee234903a44c747ee0cfa7e2d1e60029e4cd8de9a431512a

    SHA512

    781fd54f155442dd34f9919b3cd063ee399db411bbfe15f2bdc43d3ab8ac2d04e1011b2c99fab42bebf7b903a94e09aaaef71b7a465d2d04b417f6dad8e8e396

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\login[3].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Windows\apppatch\svchost.exe

    Filesize

    196KB

    MD5

    50f6a7163f4333d2842dc7478b7371e7

    SHA1

    2a0d6c69185e0b4eec90b9603b94a4872e563a19

    SHA256

    2720af3539e0c12ab1c868c810fe8fe39f78c00345551948c53db51fd18014dd

    SHA512

    652956b6cfac4375dfb9dc99ef4fabae1ff480bffd454686c7f1c06562363c51b49363edf021d00ac543cd0c275755d1c4ac9e1947c4c73844a50d56c35ceddb

  • memory/4184-50-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-43-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-22-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-74-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-79-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-78-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-77-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-76-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-75-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-73-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-71-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-70-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-68-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-67-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-66-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-65-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-64-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-63-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-62-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-61-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-60-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-59-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-57-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-56-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-55-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-54-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-53-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-52-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-51-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-20-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-49-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-48-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-47-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-45-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-44-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-24-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-42-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-41-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-40-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-39-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-38-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-37-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-36-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-34-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-33-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-32-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-31-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-30-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-29-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-28-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-26-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-25-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-72-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-69-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-58-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-46-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-35-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-27-0x0000000002BB0000-0x0000000002C62000-memory.dmp

    Filesize

    712KB

  • memory/4184-19-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/4184-14-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/4184-16-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/4184-17-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/4184-18-0x0000000002A00000-0x0000000002AA4000-memory.dmp

    Filesize

    656KB

  • memory/4472-0-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB

  • memory/4472-1-0x00000000021E0000-0x000000000222F000-memory.dmp

    Filesize

    316KB

  • memory/4472-2-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4472-13-0x00000000021E0000-0x000000000222F000-memory.dmp

    Filesize

    316KB

  • memory/4472-15-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/4472-11-0x0000000000400000-0x000000000048A000-memory.dmp

    Filesize

    552KB