Analysis

  • max time kernel
    116s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/12/2024, 22:55

General

  • Target

    62ac5ce5fd88ea6e94440451b0449bc0dd25ea7c9c6df83eddbc403ac393f934.exe

  • Size

    355KB

  • MD5

    eee702e9c13b3edbd45f5bdaa07f050e

  • SHA1

    d3234d7b726de8c45102a35ca4555dcee5cdcca1

  • SHA256

    62ac5ce5fd88ea6e94440451b0449bc0dd25ea7c9c6df83eddbc403ac393f934

  • SHA512

    ac97927f23739bfc4ae598a447f997feca3753daf12c07a4c5812fc5cbe668e5e6f25f48ff8dd5e115889f8016da9b46053c6542811d5d5de3a1ded77e780c3c

  • SSDEEP

    6144:93EmWPDNND9yRPzLq+YXFqaZiMLic9kzVd7EAC4TSs9Eim:SmWhND9yJz+b1FcMLmp2ATTSsdm

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\62ac5ce5fd88ea6e94440451b0449bc0dd25ea7c9c6df83eddbc403ac393f934.exe
    "C:\Users\Admin\AppData\Local\Temp\62ac5ce5fd88ea6e94440451b0449bc0dd25ea7c9c6df83eddbc403ac393f934.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:4132
    • 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:4340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\login[4].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\22BD.tmp

    Filesize

    61KB

    MD5

    eb8a18936a3ed57313f5dc1bc466b2c1

    SHA1

    14cc3ec9434530f3c6297b759c04007ddcb68c9b

    SHA256

    7a1ba28c7b8c24f21ecc1bca05f6633bfada48abc0f4675cdb23b1666ec34424

    SHA512

    92fc762ef3b81edbc919b75e0f601fe4d5372b3381c7e3c30944c9e0046c7af741bb1c3ddb64aa76c6653c0b13943185b54ceb8ed862bdb969eb6f6d77a954f7

  • C:\Users\Admin\AppData\Local\Temp\22E2.tmp

    Filesize

    99KB

    MD5

    65fb1acd40730a29acf900ba3e632cec

    SHA1

    569f240231cff35bb2f06958b5afcd328917300c

    SHA256

    100f33f38663b802a6317ce91376925e133658e53bf1913a4679e9d68d205cf6

    SHA512

    c1469c5e21a1e788ac7766dfb1897e1be2b47286e16a6485b481635141a03acdd0aeb1d1d6b7aa443e85a9f811c779c26f5c412c71e510d1aaf19f7e449c1c51

  • C:\Users\Admin\AppData\Local\Temp\22E2.tmp

    Filesize

    99KB

    MD5

    d07e96c1a365962b927ff3d8956e3d24

    SHA1

    684b547db8a29c0856fcf5cf86e6f46078d47d4c

    SHA256

    57b58bf84fec051b49a8300c8d5451a477f521ec8b129c1908e6c3b7e91ce6c8

    SHA512

    5bdd50b3fd29d8d8b5c161cb890f13c93d959c27c71cfd93b0d1c156b41663d0dda38d038eeaaf3cf9c361dd4aa9c60601fd3a2c58e77dbd38b471ba43e9f94b

  • C:\Users\Admin\AppData\Local\Temp\5E8.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\B362.tmp

    Filesize

    1KB

    MD5

    a65a02adfb944ceefd80aad473c5e696

    SHA1

    5057043dd3d0974acb48858293fb8a715c9ae71a

    SHA256

    c223bcb6644a58138b1569b8466bf0c86789e2c9f3ac0fe9981ba311ee503e9a

    SHA512

    3e6501c5ae0fed50073127bc086bd4c9b00a5d33e621ced15b7800b822366fbeb91c7b67e6508f8f43e53fda3b415a1ece11110efe0cd3c6fa41bb2f4546ca5f

  • C:\Users\Admin\AppData\Local\Temp\B3A3.tmp

    Filesize

    24KB

    MD5

    41e3835a5f29841b3dfabbd97a7fd2e8

    SHA1

    d80f602e05c4f50deacf3c1f2d91cf6241eead9f

    SHA256

    a815fbb0e3405752954a5102bb20443c868348f59a6d17af8e36510eaad948bc

    SHA512

    fc69ac277f368d806a64c57b72d4002aaf74801912fd1ef9d658c4a4e2969f04a9d0f9872e781cb1d5b6bea033dd6542149b37a3d4ddc2080ad394f0a8ab6ca2

  • C:\Windows\apppatch\svchost.exe

    Filesize

    355KB

    MD5

    396f635ed947ae50214ee489195b7cd3

    SHA1

    df294a1f269c6b2c1faacf8562461003e759aee0

    SHA256

    39a702a7d2911dfbe6c9891ec39aec1f6adc86d22224267693e5a40370ff3c9d

    SHA512

    5c82205a77b368ed40dff5fd1ad61e6507f852c73779f6579ca85d10fb2d6bda52e9a548c6a280fbb0689fa99b940fe35d4480ba1101d39615244384a86d8f11

  • memory/4132-8-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4340-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-73-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-14-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-10-0x0000000002720000-0x00000000027C8000-memory.dmp

    Filesize

    672KB

  • memory/4340-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/4340-183-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB