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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 22:02

General

  • Target

    574f7767c5659182739b138068fa1d92477715e7816ee39632d8d9c49b37bfa7.exe

  • Size

    711KB

  • MD5

    75ddf9498d4d8338d1c53dee5a86f250

  • SHA1

    69857cd9c14834e1c892999f825c70303448ec4e

  • SHA256

    574f7767c5659182739b138068fa1d92477715e7816ee39632d8d9c49b37bfa7

  • SHA512

    37a52b529aafb007b28bc447b22114f440df9e0a19c66990d7ebcae6fa72c0d5b2b19c3a134024ea7d5af6560f212ddb68e532401afcbbd8dbf092d740282aed

  • SSDEEP

    12288:EmWhND9yJz+b1FcMLmp2ATTSsdsmWhND9yJz+b1FcMLmp2ATTSsdS:EmUNJyJqb1FcMap2ATT5imUNJyJqb1FB

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

    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\574f7767c5659182739b138068fa1d92477715e7816ee39632d8d9c49b37bfa7.exe
    "C:\Users\Admin\AppData\Local\Temp\574f7767c5659182739b138068fa1d92477715e7816ee39632d8d9c49b37bfa7.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:3244
    • 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:1204

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\TRPPE7V2\login[2].htm

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\8B1E.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\8B1E.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\A327.tmp

    Filesize

    42KB

    MD5

    320ae475f2239599ff71be6588bbf836

    SHA1

    605a98446cfa08bea9d28a78962e383900f03868

    SHA256

    f950ff214bc0789681b80bd010174e505c66fb469d1ee7d48ae930ea74bc5292

    SHA512

    bc1be7fcb7db5519fc01a01387cc9217112926adc306b42b73927890c07bae91b943a6ce6a525c6f9573fe154df668c4f9deeb6814fdb8535f731cc7a87e6eb3

  • C:\Users\Admin\AppData\Local\Temp\A327.tmp

    Filesize

    42KB

    MD5

    d7e1909203ab5b0b62a1ea5226de0b1d

    SHA1

    1127e1a09aab392b271b048768f9ac25d70782f8

    SHA256

    2572df3b528124217310b7ce819b853731ed34b915cca07be033841e69665d85

    SHA512

    528ecde851ca5f0e4fc8f327556db2d8c1df8ca70b563ae40b780484a0bc0a2932f9d455b79159b940f19e7585082a6b48697fa1556c7debdaeabff214dc3b6b

  • C:\Windows\apppatch\svchost.exe

    Filesize

    711KB

    MD5

    a8a5c85af99bf56dffae8c7a124befc5

    SHA1

    f55707e6ff71d8ac805678743ddbad7b97c5502c

    SHA256

    99eef2a3168fe72ef1e8bd7ec753759600337d4651be9cd40af5a4b1715c84e0

    SHA512

    520f2839c16bac4d54c08763642a50a05462470f84ae9d2eb810d9da61867221d1407ae6bac6eb67cce84eaf78928e990c730e75b97654e14160d785d8256ce4

  • memory/1204-48-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-41-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-15-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-29-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-35-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-72-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-71-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-70-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-69-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-68-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-67-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-66-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-65-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-64-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-63-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-43-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-61-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-59-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-58-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-57-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-56-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-55-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-54-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-53-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-52-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-51-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-50-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-49-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-11-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-46-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-13-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-45-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-62-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-42-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-44-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-39-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-37-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-36-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-34-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-33-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-32-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-31-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-30-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-28-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-26-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-25-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-24-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-23-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-22-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-21-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-19-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-18-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-60-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-17-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-47-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-16-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-40-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-10-0x0000000002720000-0x00000000027C8000-memory.dmp

    Filesize

    672KB

  • memory/1204-38-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-27-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-20-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/1204-287-0x0000000002B40000-0x0000000002BF6000-memory.dmp

    Filesize

    728KB

  • memory/3244-8-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB