Analysis

  • max time kernel
    107s
  • max time network
    111s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241023-en
  • resource tags

    arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-12-2024 00:33

General

  • Target

    release (1).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.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 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:2872
  • 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:1916
  • C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe
    "C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:764
  • C:\Users\Admin\Desktop\Client-built.exe
    "C:\Users\Admin\Desktop\Client-built.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4200

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Packages\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\TempState\SearchHoverUnifiedTileModelCache.dat

    Filesize

    10KB

    MD5

    1301a13a0b62ba61652cdbf2d61f80fa

    SHA1

    1911d1f0d097e8f5275a29e17b0bcef305df1d9e

    SHA256

    7e75ad955706d05f5934810aebbd3b5a7742d5e5766efd9c4fc17ee492b2f716

    SHA512

    66aa4261628bb31ee416af70f4159c02e5bbfbe2f7645e87d70bb35b1f20fa915d62b25d99cd72c59580d1f64e6c6b5ad36ace6600d3bcdb67f45036d768ed8b

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

    Filesize

    78KB

    MD5

    2a40a7298a539cbaf1191f8b6cc6e74b

    SHA1

    6ed82f32a4129bcef651714f399f6e7a3592b86e

    SHA256

    5a12b8577dbb22f2af47fded62cf674a36c8b9d1a89d01faec20ae2f62b6211d

    SHA512

    70e6787331631848991ee3addfe1c5b97129488c89b527de819cc58c5ad5907367ce7f92253ebd21dd68fd8b4fb613b00c2a57f58494873b7b401333a6d46e7c

  • 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/1916-11-0x0000000004B40000-0x0000000004BD2000-memory.dmp

    Filesize

    584KB

  • memory/1916-13-0x0000000004BE0000-0x0000000004BEA000-memory.dmp

    Filesize

    40KB

  • memory/1916-14-0x000000007503E000-0x000000007503F000-memory.dmp

    Filesize

    4KB

  • memory/1916-15-0x0000000075030000-0x00000000757E1000-memory.dmp

    Filesize

    7.7MB

  • memory/1916-12-0x0000000075030000-0x00000000757E1000-memory.dmp

    Filesize

    7.7MB

  • memory/1916-10-0x0000000005010000-0x00000000055B6000-memory.dmp

    Filesize

    5.6MB

  • memory/1916-26-0x00000000076D0000-0x00000000077F2000-memory.dmp

    Filesize

    1.1MB

  • memory/1916-9-0x0000000000080000-0x0000000000088000-memory.dmp

    Filesize

    32KB

  • memory/1916-8-0x000000007503E000-0x000000007503F000-memory.dmp

    Filesize

    4KB

  • memory/4200-31-0x0000017F0AF90000-0x0000017F0AFA8000-memory.dmp

    Filesize

    96KB

  • memory/4200-32-0x0000017F25640000-0x0000017F25802000-memory.dmp

    Filesize

    1.8MB

  • memory/4200-33-0x0000017F268C0000-0x0000017F26DE8000-memory.dmp

    Filesize

    5.2MB