Analysis

  • max time kernel
    115s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2024 06:37

General

  • Target

    146d515c23277e366b7a2b5044a24446eeb0f25670455573e02a38d0dac01738N.exe

  • Size

    205KB

  • MD5

    b825bedb6c9b053de444772810021220

  • SHA1

    59a48bfee846bcc3f59c545fffa945c7b8da375c

  • SHA256

    146d515c23277e366b7a2b5044a24446eeb0f25670455573e02a38d0dac01738

  • SHA512

    5917bce10815f6f570920e63e4405a5c0fd7cec4a80e794336681d629754e9f13ea7e470cc2709a2b3c7d4e562da7799fe65cd52763f22c7587aab3c59876d48

  • SSDEEP

    3072:M7VD4DUHnNZkfOP6sfIOpJ9C3hPlGxt1UhRkgyankTIzfwAYzWcXCyqT36zhRRKy:izHnMLm5GNGxHUhtnkdpHqTKzhh8i

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

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Program Files directory 14 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 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\146d515c23277e366b7a2b5044a24446eeb0f25670455573e02a38d0dac01738N.exe
    "C:\Users\Admin\AppData\Local\Temp\146d515c23277e366b7a2b5044a24446eeb0f25670455573e02a38d0dac01738N.exe"
    1⤵
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:3532
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:1732
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4360,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
    1⤵
      PID:2448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XHVIU6BA\login[2].htm

      Filesize

      168B

      MD5

      d57e3a550060f85d44a175139ea23021

      SHA1

      2c5cb3428a322c9709a34d04dd86fe7628f8f0a6

      SHA256

      43edf068d34276e8ade4113d4d7207de19fc98a2ae1c07298e593edae2a8774c

      SHA512

      0364fe6a010fce7a3f4a6344c84468c64b20fd131f3160fc649db78f1075ba52d8a1c4496e50dbe27c357e01ee52e94cdcda8f7927cba28d5f2f45b9da690063

    • C:\Windows\apppatch\svchost.exe

      Filesize

      205KB

      MD5

      cf113b426ee0b7ccf1d0d4d891e64e42

      SHA1

      1fc2ca0f742ec9dd9685ee84262be3d8220420c0

      SHA256

      659bc2ebc9712d5db64e9dced15151fc4ea65842e138ab6e14e246fb7e8a4bb3

      SHA512

      8a88b6aacf203e65a099cd4a899d96ae8162eb121868ffb52607d76f88bd64bb1b424ed50c839959a791d88ec7f6ef0c0925f62df150a5330af22763ed2b5eb0

    • memory/1732-57-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-26-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-18-0x0000000002DA0000-0x0000000002E44000-memory.dmp

      Filesize

      656KB

    • memory/1732-55-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-15-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/1732-54-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-22-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-24-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-20-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-53-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-33-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-79-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-78-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-77-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-76-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-75-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-74-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-73-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-72-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-71-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-70-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-69-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-67-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-66-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-65-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-64-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-63-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-62-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-61-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-60-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-59-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-58-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-16-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/1732-56-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-25-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-19-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/1732-17-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/1732-52-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-51-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-50-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-49-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-48-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-47-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-46-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-45-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-44-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-42-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-41-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-40-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-39-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-38-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-37-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-36-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-35-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-34-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-32-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-31-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-30-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-29-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-28-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-27-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-68-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/1732-43-0x0000000002F90000-0x0000000003042000-memory.dmp

      Filesize

      712KB

    • memory/3532-2-0x0000000000400000-0x000000000045C000-memory.dmp

      Filesize

      368KB

    • memory/3532-1-0x0000000002220000-0x000000000226F000-memory.dmp

      Filesize

      316KB

    • memory/3532-0-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/3532-13-0x0000000000400000-0x000000000045C000-memory.dmp

      Filesize

      368KB

    • memory/3532-12-0x0000000002220000-0x000000000226F000-memory.dmp

      Filesize

      316KB

    • memory/3532-11-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB