Analysis

  • max time kernel
    141s
  • max time network
    150s
  • 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 00:38

General

  • Target

    f0edecfd0cbd376841a3d0088f628ddf86c1bb08d765a106622ed2dbc4610b66N.exe

  • Size

    208KB

  • MD5

    1f1ec6f233c4dd5599493ff71dd88e10

  • SHA1

    99f06f5db53046f5157c2913e404c1819f4ecf06

  • SHA256

    f0edecfd0cbd376841a3d0088f628ddf86c1bb08d765a106622ed2dbc4610b66

  • SHA512

    f8bb7312c698116e10e541bdac5a7154ef0dc137ea8b5bc42cf8610d98402f72d7805d4620d64632cf4be861c78cfe8ee37a4b2b0d3842469b389fee19c061b7

  • SSDEEP

    6144:aOYX27lPBA3YDMw4lj6idlMlwl7/79C87:awBAy0rlMI5

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\f0edecfd0cbd376841a3d0088f628ddf86c1bb08d765a106622ed2dbc4610b66N.exe
    "C:\Users\Admin\AppData\Local\Temp\f0edecfd0cbd376841a3d0088f628ddf86c1bb08d765a106622ed2dbc4610b66N.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:4088
    • 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:2124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    162B

    MD5

    4f8e702cc244ec5d4de32740c0ecbd97

    SHA1

    3adb1f02d5b6054de0046e367c1d687b6cdf7aff

    SHA256

    9e17cb15dd75bbbd5dbb984eda674863c3b10ab72613cf8a39a00c3e11a8492a

    SHA512

    21047fea5269fee75a2a187aa09316519e35068cb2f2f76cfaf371e5224445e9d5c98497bd76fb9608d2b73e9dac1a3f5bfadfdc4623c479d53ecf93d81d3c9f

  • C:\Users\Admin\AppData\Local\Temp\892F.tmp

    Filesize

    481B

    MD5

    f55e6af9aebf2bd0c6c858db79c1c0d3

    SHA1

    8fea303eefac1f55e4153bc055d3d6be94c970e3

    SHA256

    ae57d4e5893a4d214a5c894e3e4e53bf6cff31221edf3031c5f906e55ddca81b

    SHA512

    e620da4e9c3e31fa376669634d1e739092ea02ccee562aa69dbd0cb3a2cbb81fccf393a02b5af05beee82f468b683ff26954a434cdaddd26a09e22839763e560

  • C:\Users\Admin\AppData\Local\Temp\E002.tmp

    Filesize

    593B

    MD5

    3b03d93d3487806337b5c6443ce7a62d

    SHA1

    93a7a790bb6348606cbdaf5daeaaf4ea8cf731d0

    SHA256

    7392749832c70fcfc2d440d7afc2f880000dd564930d95d634eb1199fa15de30

    SHA512

    770977beaeedafc5c98d0c32edc8c6c850f05e9f363bc9997fa73991646b02e5d40ceed0017b06caeab0db86423844bc4b0a9f0df2d8239230e423a7bfbd4a88

  • C:\Users\Admin\AppData\Local\Temp\E002.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\F8CE.tmp

    Filesize

    60KB

    MD5

    108675080f9926daa86b969534c5ebfa

    SHA1

    821d048044f4bf369fda826eada408ae7aa90737

    SHA256

    75a951ceba257e9c054e4782e0d620a540b6603a92774267f745f972d750330a

    SHA512

    e0ab4228a44c82f76c4e5d73f33ac8d5763c61947a8a0cdd21433c739ef335378c58604db41243a7b2eadee2a2e3d1d31ca40081270fcca764e9f6c5e518fc38

  • C:\Windows\apppatch\svchost.exe

    Filesize

    208KB

    MD5

    da1075e9fcbad586a4e34bdba7643c08

    SHA1

    10779525e1286df9e83474eefd2f968326610fc7

    SHA256

    4db1951d9585165c5a80e099d82e56363517d9ed9850c38b2888ece1bf357954

    SHA512

    25ad280913559e300cd7f9f099578d6f858f8b01972a12686294d1579134f48148b319a245bdf74666a83bd112b6fea873d80fef452db46405f44894b693034f

  • memory/2124-61-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-24-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-13-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2124-19-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2124-20-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-56-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-22-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-27-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-26-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-55-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-79-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-63-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-47-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-78-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-77-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-76-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-75-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-74-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-73-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-72-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-71-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-57-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-70-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-69-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-68-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-67-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-66-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-65-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-64-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-62-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-17-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2124-60-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-59-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-58-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-16-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/2124-18-0x0000000002A00000-0x0000000002AA8000-memory.dmp

    Filesize

    672KB

  • memory/2124-25-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-54-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-53-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-52-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-51-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-50-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-49-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-48-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-46-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-45-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-44-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-43-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-42-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-40-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-39-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-38-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-37-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-36-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-35-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-34-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-33-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-32-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-31-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-30-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-29-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-41-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/2124-28-0x0000000002BF0000-0x0000000002CA6000-memory.dmp

    Filesize

    728KB

  • memory/4088-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4088-0-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4088-1-0x0000000002240000-0x0000000002291000-memory.dmp

    Filesize

    324KB

  • memory/4088-11-0x0000000000400000-0x00000000004C7000-memory.dmp

    Filesize

    796KB

  • memory/4088-15-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/4088-14-0x0000000002240000-0x0000000002291000-memory.dmp

    Filesize

    324KB