Analysis

  • max time kernel
    440s
  • max time network
    442s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-12-2024 00:43

General

  • Target

    release (1).zip

  • Size

    445KB

  • MD5

    492b0707929b94ef877ba06215b36a68

  • SHA1

    d9ba69c8193cb27436849e10faed002aada2794a

  • SHA256

    8eee8d645eff54587594bdf22b4bfd9e6939a453328980397c907e91c2970afc

  • SHA512

    dc60d785eee5158cef3f05656fb6d91ed87a0d155b6acb2664e9a145a2a8434ec456e19d612604d35edcff6af49337d8d26897da33a9909c6ab5f98089e57946

  • SSDEEP

    12288:BfJ13+GoLo2d5ifXHE8134QwYOwFSFRiLQ+:BKGo8EifSQwYW+

Malware Config

Signatures

  • Discord RAT

    A RAT written in C# using Discord as a C2.

  • Discordrat family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\release (1).zip"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4016
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\Nuevo documento de texto.txt
    1⤵
      PID:4636
    • C:\Users\Admin\Desktop\builder.exe
      "C:\Users\Admin\Desktop\builder.exe"
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:1092
    • C:\Users\Admin\Desktop\Client-built.exe
      "C:\Users\Admin\Desktop\Client-built.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4288

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\Desktop\Client-built.exe

      Filesize

      78KB

      MD5

      df6f9fd91082c2f8199b3a9e01e06895

      SHA1

      e6ce8d2aa2ccb7f67c16210228b362ec9a7855aa

      SHA256

      24e2747f2bd5d079277ae09034f539a1e34ce3d9f3016353a1ca226817b93872

      SHA512

      4247e50e0faaea4b7436770be073ddd2c901fc55695c6d5dc8618be8c95d6666c71e8be8f29484ea070dea11ecf7ffdcf0de997984d3424828d59e2018820462

    • C:\Users\Admin\Desktop\Nuevo documento de texto.txt

      Filesize

      92B

      MD5

      867e035497fd38df02003a4c1d97d332

      SHA1

      4727f3e9ffd3a17f0438695c35839b237d63a086

      SHA256

      370e9917862c50202284442514959a1bc3efaa5ca9ed282a1ff9aba250a16401

      SHA512

      216d50e23dc742a90bbba67ff7b4932838903e014b9806746242311b51619e1c8935a5888e037323082a4dbe77a7d284996f342d47dec2e9dc3ca43de23bfae9

    • C:\Users\Admin\Desktop\Release\Discord rat.exe

      Filesize

      79KB

      MD5

      d13905e018eb965ded2e28ba0ab257b5

      SHA1

      6d7fe69566fddc69b33d698591c9a2c70d834858

      SHA256

      2bd631c6665656673a923c13359b0dc211debc05b2885127e26b0dce808e2dec

      SHA512

      b95bfdebef33ac72b6c21cdf0abb4961222b7efd17267cd7236e731dd0b6105ece28e784a95455f1ffc8a6dd1d580a467b07b3bd8cb2fb19e2111f1a864c97cb

    • C:\Users\Admin\Desktop\builder.exe

      Filesize

      10KB

      MD5

      4f04f0e1ff050abf6f1696be1e8bb039

      SHA1

      bebf3088fff4595bfb53aea6af11741946bbd9ce

      SHA256

      ded51c306ee7e59fa15c42798c80f988f6310ea77ab77de3d12dc01233757cfa

      SHA512

      94713824b81de323e368fde18679ef8b8f2883378bffd2b7bd2b4e4bd5d48b35c6e71c9f8e9b058ba497db1bd0781807e5b7cecfd540dad611da0986c72b9f12

    • C:\Users\Admin\Desktop\dnlib.dll

      Filesize

      1.1MB

      MD5

      508ccde8bc7003696f32af7054ca3d97

      SHA1

      1f6a0303c5ae5dc95853ec92fd8b979683c3f356

      SHA256

      4758c7c39522e17bf93b3993ada4a1f7dd42bb63331bac0dcd729885e1ba062a

      SHA512

      92a59a2e1f6bf0ce512d21cf4148fe027b3a98ed6da46925169a4d0d9835a7a4b1374ba0be84e576d9a8d4e45cb9c2336e1f5bd1ea53e39f0d8553db264e746d

    • memory/1092-16-0x0000000005190000-0x000000000519A000-memory.dmp

      Filesize

      40KB

    • memory/1092-15-0x0000000004FE0000-0x0000000005072000-memory.dmp

      Filesize

      584KB

    • memory/1092-20-0x0000000007B20000-0x0000000007C42000-memory.dmp

      Filesize

      1.1MB

    • memory/1092-14-0x0000000005490000-0x0000000005A36000-memory.dmp

      Filesize

      5.6MB

    • memory/1092-13-0x0000000000530000-0x0000000000538000-memory.dmp

      Filesize

      32KB

    • memory/4288-25-0x000002D49CD40000-0x000002D49CD58000-memory.dmp

      Filesize

      96KB

    • memory/4288-26-0x000002D4B7430000-0x000002D4B75F2000-memory.dmp

      Filesize

      1.8MB

    • memory/4288-27-0x000002D4B87B0000-0x000002D4B8CD8000-memory.dmp

      Filesize

      5.2MB