Analysis

  • max time kernel
    61s
  • max time network
    67s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-02-2025 10:18

General

  • Target

    release.zip

  • Size

    445KB

  • MD5

    06a4fcd5eb3a39d7f50a0709de9900db

  • SHA1

    50d089e915f69313a5187569cda4e6dec2d55ca7

  • SHA256

    c13a0cd7c2c2fd577703bff026b72ed81b51266afa047328c8ff1c4a4d965c97

  • SHA512

    75e5f637fd3282d088b1c0c1efd0de8a128f681e4ac66d6303d205471fe68b4fbf0356a21d803aff2cca6def455abad8619fedc8c7d51e574640eda0df561f9b

  • SSDEEP

    12288:BfJ13+GoLo2d5ifXHE8134QwYOwFSFRiLQI:BKGo8EifSQwYWI

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 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\release.zip
    1⤵
      PID:4104
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:736
      • C:\Program Files\7-Zip\7zG.exe
        "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\Desktop\release\" -spe -an -ai#7zMap673:72:7zEvent15055
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:556
      • C:\Users\Admin\Desktop\release\builder.exe
        "C:\Users\Admin\Desktop\release\builder.exe"
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:3484
      • C:\Users\Admin\Desktop\release\Release\Discord rat.exe
        "C:\Users\Admin\Desktop\release\Release\Discord rat.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:3232

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        79KB

        MD5

        d13905e018eb965ded2e28ba0ab257b5

        SHA1

        6d7fe69566fddc69b33d698591c9a2c70d834858

        SHA256

        2bd631c6665656673a923c13359b0dc211debc05b2885127e26b0dce808e2dec

        SHA512

        b95bfdebef33ac72b6c21cdf0abb4961222b7efd17267cd7236e731dd0b6105ece28e784a95455f1ffc8a6dd1d580a467b07b3bd8cb2fb19e2111f1a864c97cb

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

        Filesize

        10KB

        MD5

        4f04f0e1ff050abf6f1696be1e8bb039

        SHA1

        bebf3088fff4595bfb53aea6af11741946bbd9ce

        SHA256

        ded51c306ee7e59fa15c42798c80f988f6310ea77ab77de3d12dc01233757cfa

        SHA512

        94713824b81de323e368fde18679ef8b8f2883378bffd2b7bd2b4e4bd5d48b35c6e71c9f8e9b058ba497db1bd0781807e5b7cecfd540dad611da0986c72b9f12

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

        Filesize

        1.1MB

        MD5

        508ccde8bc7003696f32af7054ca3d97

        SHA1

        1f6a0303c5ae5dc95853ec92fd8b979683c3f356

        SHA256

        4758c7c39522e17bf93b3993ada4a1f7dd42bb63331bac0dcd729885e1ba062a

        SHA512

        92a59a2e1f6bf0ce512d21cf4148fe027b3a98ed6da46925169a4d0d9835a7a4b1374ba0be84e576d9a8d4e45cb9c2336e1f5bd1ea53e39f0d8553db264e746d

      • memory/3232-20-0x000002175FD40000-0x000002175FD58000-memory.dmp

        Filesize

        96KB

      • memory/3232-21-0x000002177A2C0000-0x000002177A482000-memory.dmp

        Filesize

        1.8MB

      • memory/3232-22-0x000002177AAC0000-0x000002177AFE8000-memory.dmp

        Filesize

        5.2MB

      • memory/3484-8-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

        Filesize

        32KB

      • memory/3484-9-0x0000000005D10000-0x00000000062B4000-memory.dmp

        Filesize

        5.6MB

      • memory/3484-10-0x00000000056A0000-0x0000000005732000-memory.dmp

        Filesize

        584KB

      • memory/3484-11-0x0000000005860000-0x000000000586A000-memory.dmp

        Filesize

        40KB

      • memory/3484-15-0x0000000008A70000-0x0000000008B92000-memory.dmp

        Filesize

        1.1MB