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Analysis

  • max time kernel
    118s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/01/2025, 06:51

General

  • Target

    4da97776632cdb603b6ab557f03747f9fe6661473942156adfb07caef3650f81.exe

  • Size

    204KB

  • MD5

    d3c77a58622b1f3ae3cc1e73b9a6c01b

  • SHA1

    bbd5b6544ee69fe5f5320a4e32275b98d3c5b7cd

  • SHA256

    4da97776632cdb603b6ab557f03747f9fe6661473942156adfb07caef3650f81

  • SHA512

    bebb23ed8370439d1de965ed6ae7f8bf6aa2235e8025a35b50447876ad32e56e3a7b29b00b16a01a2e6ce47f56d5a29c9c195ecf8e14c78febe4b6d29fbb3e5e

  • SSDEEP

    3072:S5u7yT4TVbkuRaX1w71jnRkCoyJTarYWbV+HOFxg+z1WxJsqWkoyjOowUVl/TlA4:SLexkuRaX41xoyJV65gzyZko+uc7

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\4da97776632cdb603b6ab557f03747f9fe6661473942156adfb07caef3650f81.exe
    "C:\Users\Admin\AppData\Local\Temp\4da97776632cdb603b6ab557f03747f9fe6661473942156adfb07caef3650f81.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:2772
    • 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:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\67CA.tmp

    Filesize

    24KB

    MD5

    acfc6ecd8b276f55faf91fcd37cd813f

    SHA1

    07b820d9f8c65da979d8baf21bd6af1188358216

    SHA256

    899ad6f396467d73113d152a241747fe264000be966e2eb4bafd2df4aa07be47

    SHA512

    a308eb4a89e210e71bb5fd6914f49faee11fabcbcb76b91cc9fb0a9c68fc34b88f3dd61e6c27bd939c4e794f29391c56fecb46870303a4f351e246a439c15913

  • C:\Users\Admin\AppData\Local\Temp\68AC.tmp

    Filesize

    481B

    MD5

    fbb03459f5f8c7e67e861af8ebdc8410

    SHA1

    86b1f90339daa3dd0975370f8289318dfaca1af3

    SHA256

    a9b4565cdbd22e421ae27082676f0aeb054035b33ec2308134b3b7b03b6e2146

    SHA512

    d83491ffae0d20cf04c30b709029072e406008c663c0ff65920afcd321d315990712cf7ba692b72bd2b0cef999851b6ecc137b8d3d997b0faed6eddd06fb4fc0

  • \Windows\AppPatch\svchost.exe

    Filesize

    204KB

    MD5

    05cd4565e1e470bf38cec4bf833388fb

    SHA1

    1e5287154bc51a47b320df0187a3258c2954c096

    SHA256

    b850455ca13bfcfeeb1395523ba461a5d483760c79f320790d07e41c2286de62

    SHA512

    040009de9e3f8ac8e220e59feb429c5931b06c3768978d364e4bd88b8b6a28beb6500112b539a142e00ea13b678f180ef75085cf21129e131f65da52e4270fba

  • memory/2772-0-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2772-1-0x0000000000360000-0x00000000003B1000-memory.dmp

    Filesize

    324KB

  • memory/2772-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2772-18-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2772-20-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/2772-19-0x0000000000360000-0x00000000003B1000-memory.dmp

    Filesize

    324KB

  • memory/2860-16-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2860-17-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2860-21-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2860-32-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-30-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-33-0x0000000000400000-0x000000000057D000-memory.dmp

    Filesize

    1.5MB

  • memory/2860-28-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-26-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-24-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-22-0x0000000000610000-0x00000000006B8000-memory.dmp

    Filesize

    672KB

  • memory/2860-34-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-38-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-36-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-40-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-62-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-84-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-83-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-82-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-81-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-80-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-79-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-78-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-77-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-76-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-74-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-73-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-72-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-71-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-70-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-69-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-68-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-67-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-66-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-64-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-63-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-61-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-60-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-59-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-58-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-57-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-56-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-55-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-54-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-53-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-52-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-51-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-50-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-49-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-47-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-46-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-45-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-44-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-42-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-75-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-41-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-65-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-48-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB

  • memory/2860-43-0x00000000024F0000-0x00000000025A6000-memory.dmp

    Filesize

    728KB