Analysis

  • max time kernel
    110s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    22-12-2024 09:57

General

  • Target

    7c439a6074fca8aca9f40cc1b6feaf62d1f41f052c36fae47fbc96282638353fN.exe

  • Size

    218KB

  • MD5

    f176d67b44aceb9b1036c7f2c310e110

  • SHA1

    3c8761148f74849703c6c554a1a863b6e5c3e920

  • SHA256

    7c439a6074fca8aca9f40cc1b6feaf62d1f41f052c36fae47fbc96282638353f

  • SHA512

    c9518f99878a92b7c35759871129a4e612e3ed12cfb93e7125511f52bdd366963b5faab685954c5dba1ae6d7007ef331bdf0463a773dfa49ced8dcbe7b044479

  • SSDEEP

    3072:1vm4SZsQrNzPrl6rjGMjp39d4u8iqddCxMIJOb2o5DsBPjim6hwM2H6:51SyAJp6rjn1gOObn4b6h9h

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\7c439a6074fca8aca9f40cc1b6feaf62d1f41f052c36fae47fbc96282638353fN.exe
    "C:\Users\Admin\AppData\Local\Temp\7c439a6074fca8aca9f40cc1b6feaf62d1f41f052c36fae47fbc96282638353fN.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:1724
    • 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:592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\B5B0.tmp

    Filesize

    42KB

    MD5

    ed541117b1aae0d1e503401c146d88d3

    SHA1

    59d8df3e0cda5f345785ce8bddd61e90647cba1f

    SHA256

    fe1bb9cbcf3b2333537725c5d223ffa05ff27c341b75c5974bf28acf1bde1b54

    SHA512

    330c362923a10d1355c4dabcb29cd9b800dabfbfca4f79a7d986816b23ab9fbb23b38f7fc96a19b75c8aa71d5bc13ec732ad01483d7669f7a4540fc23181f926

  • C:\Users\Admin\AppData\Local\Temp\BA8.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    218KB

    MD5

    a84db5c2f514be71365d0f50c161b0da

    SHA1

    6ca6bfde590398d32bae3b811eb923ded5013e4a

    SHA256

    1dd1f109391e82393b90afc505b3217692a439ad8e46307dd03605b10bd8c949

    SHA512

    2c361c17e0418d48ee15cba6330e2fc4a0a06de279b22d6fb5d9b36c553e71aa55546e81834078784871ac54f41718220faa01ccd128fba45eb7fca544bb2854

  • memory/592-69-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-36-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-68-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-18-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/592-28-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-31-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/592-26-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-24-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-22-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-32-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-66-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-34-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-38-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-44-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-63-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-84-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-83-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-82-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-81-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-80-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-79-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-78-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-77-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-76-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-74-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-73-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-72-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-71-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-70-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-20-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-67-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-19-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB

  • memory/592-30-0x00000000022B0000-0x0000000002358000-memory.dmp

    Filesize

    672KB

  • memory/592-65-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-62-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-61-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-60-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-59-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-58-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-57-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-56-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-55-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-53-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-52-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-75-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-50-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-49-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-48-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-47-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-46-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-45-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-64-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-43-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-42-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-41-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-54-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-51-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-40-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/592-39-0x00000000024A0000-0x0000000002556000-memory.dmp

    Filesize

    728KB

  • memory/1724-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1724-1-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1724-0-0x0000000000240000-0x0000000000291000-memory.dmp

    Filesize

    324KB

  • memory/1724-16-0x0000000000240000-0x0000000000291000-memory.dmp

    Filesize

    324KB

  • memory/1724-15-0x0000000000400000-0x00000000005AE000-memory.dmp

    Filesize

    1.7MB