Analysis

  • max time kernel
    141s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    29-12-2024 01:42

General

  • Target

    8c7a89e0073fc8e93fb7121ed7f37e20b845d9deac49c995e5ef539580524527.exe

  • Size

    218KB

  • MD5

    994723f608af509c8f39ca0957e1abe0

  • SHA1

    35ac1ae36268337ea5dab0516a4986b1ac0b8bca

  • SHA256

    8c7a89e0073fc8e93fb7121ed7f37e20b845d9deac49c995e5ef539580524527

  • SHA512

    313b4638ebe4de7e020f71470043b00d9c1e22d3bcbce91794d87493387d765a2826376e3baf6a2b524f1267c65deb0080422e29ea00bcab637e75cb3d66ebce

  • SSDEEP

    6144:YEQBDdO1z7L/EIhZDE9oLfFWlMZT7+DGaMwIC:YEGDdQNHEwWlMxYG/wI

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
  • Loads dropped DLL 2 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 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8c7a89e0073fc8e93fb7121ed7f37e20b845d9deac49c995e5ef539580524527.exe
    "C:\Users\Admin\AppData\Local\Temp\8c7a89e0073fc8e93fb7121ed7f37e20b845d9deac49c995e5ef539580524527.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:576
    • 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:484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\8721.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\D76F.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • \Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    95d930bb558aca1552166ac7ceb2329e

    SHA1

    64f034b780ebdb409824a6b142ce1de8eba0b78b

    SHA256

    8d8c28eede0ad240b661df30406db086ebecfc0a5bac5bd0cfba3a147dfaefe6

    SHA512

    39bfa1450876230f801899c25a7ca9ca98618096c2892dee812c3d821d3b80e5298475d349b084c503892d1b327eecd43b9c360fdfc010e18d0206069f7cd45b

  • memory/484-72-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-41-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-71-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-20-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/484-70-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-59-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-32-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-30-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-33-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/484-26-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-69-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-22-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-36-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-38-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-34-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-40-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-43-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-50-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-84-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-83-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-82-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-80-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-79-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-78-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-77-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-76-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-75-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-74-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-73-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-21-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/484-19-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/484-28-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-24-0x00000000022E0000-0x0000000002388000-memory.dmp

    Filesize

    672KB

  • memory/484-68-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-67-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-65-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-63-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-62-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-60-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-58-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-57-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-56-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-55-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-54-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-53-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-52-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-51-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-49-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-48-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-47-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-46-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-45-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-44-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-81-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-42-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-66-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-64-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/484-61-0x00000000027A0000-0x0000000002856000-memory.dmp

    Filesize

    728KB

  • memory/576-18-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/576-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/576-0-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB

  • memory/576-1-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/576-17-0x0000000000220000-0x0000000000271000-memory.dmp

    Filesize

    324KB

  • memory/576-16-0x0000000000400000-0x00000000006D0000-memory.dmp

    Filesize

    2.8MB