Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 07:58

General

  • Target

    cda699e24e82e8b9fe0a9782aae35600e60eb3fdf481524682514d28a84b827bN.exe

  • Size

    204KB

  • MD5

    a56d4a8a6eb6c1f113bf863f90a6ea00

  • SHA1

    f5333fdb3a1becd3ede8388c051cb3e7c1df82c7

  • SHA256

    cda699e24e82e8b9fe0a9782aae35600e60eb3fdf481524682514d28a84b827b

  • SHA512

    ba5aa4b582eb027dbc733fe993aa27c561702e1b2ba84431287ea80981e98b290aab5d68699957e5fa5fddc9e011422b0bac9752fb6aa7897aa0950520f9e5df

  • SSDEEP

    3072:25u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlA4:2LexkuRaX41xoyJV65gzyZko+ucZ

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\cda699e24e82e8b9fe0a9782aae35600e60eb3fdf481524682514d28a84b827bN.exe
    "C:\Users\Admin\AppData\Local\Temp\cda699e24e82e8b9fe0a9782aae35600e60eb3fdf481524682514d28a84b827bN.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:2816
    • 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:2688

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\D74D.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Users\Admin\AppData\Local\Temp\EA08.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    8e007ef472144f191c558808a81b3511

    SHA1

    083c8f26a872589085be2e5060e54c8042eabf1f

    SHA256

    eb1eeb9478cecb6477531bf5ac57df1e0cac5941a026cb3e18fab6a1113b6b89

    SHA512

    48ade5846c16cbbb33b29e9c96b70ab38f467f1b16cba51d1b9a6cd96d5e6c981269c28de6265f3bbb590692abc326fc3e30617bc23159f8d812e55618656db5

  • memory/2688-71-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-49-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-70-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2688-69-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-41-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-28-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-32-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-30-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2688-68-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-24-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-34-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-38-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-36-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-40-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-47-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-72-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-84-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-83-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-82-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-81-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-80-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-79-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-78-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-76-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-75-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-74-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-73-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2688-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2688-22-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-26-0x0000000002280000-0x0000000002328000-memory.dmp

    Filesize

    672KB

  • memory/2688-67-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-66-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-65-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-64-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-62-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-61-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-60-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-59-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-58-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-57-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-56-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-55-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-54-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-53-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-52-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-51-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-50-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-48-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-77-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-46-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-63-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-45-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-44-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-43-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2688-42-0x0000000002840000-0x00000000028F6000-memory.dmp

    Filesize

    728KB

  • memory/2816-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2816-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2816-1-0x00000000021B0000-0x0000000002201000-memory.dmp

    Filesize

    324KB

  • memory/2816-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2816-19-0x00000000021B0000-0x0000000002201000-memory.dmp

    Filesize

    324KB

  • memory/2816-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB