Resubmissions

02-02-2025 02:35

250202-c21mnatkcq 10

02-02-2025 02:32

250202-c1ezka1ngt 10

02-02-2025 02:21

250202-ctafhasqbl 10

Analysis

  • max time kernel
    74s
  • max time network
    75s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250129-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-02-2025 02:32

Errors

Reason
Machine shutdown

General

  • Target

    NebulaExecutor.rar

  • Size

    27KB

  • MD5

    f44ba3369f118e9cc2611886494cc3f8

  • SHA1

    ecfcbd5f3149762e00298980c79137ee3299be3a

  • SHA256

    b6c7009dd8b089a584aeb6ba37fb75c11a415d63512347beece251e69da5c63b

  • SHA512

    b31cd82c9c490e5dc0358459e7d81f12e2ba4ca092d71e27d078d740475fc5857e758b1c3e3996e69ee989bcf21e0acde9c6eeaaba6f30c9f1ea1bcb1eb3cac1

  • SSDEEP

    768:2/Dgm33+7HbJRN4FnxT+nugwNwlG+sbiVTRsn:1Ou7Hbh4Ftou9zfbmRu

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTMzNTM0MTMyNTUxMTU1NzE5MQ.GJnF0Z.22Phw5o1Gt-WE6QFl0-J7NOftNtcUB5FqXmuQE

  • server_id

    1334897427899093072

Signatures

  • Discord RAT

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

  • Discordrat family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Program Files\7-Zip\7zFM.exe
    "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\NebulaExecutor.rar"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2000
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3208
    • C:\Program Files\7-Zip\7zG.exe
      "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\NebulaExecutor\" -spe -an -ai#7zMap28307:108:7zEvent2125
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\NebulaExecutor\NebulaExecutor.exe
      "C:\Users\Admin\AppData\Local\Temp\NebulaExecutor\NebulaExecutor.exe"
      1⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3404
      • C:\Windows\System32\shutdown.exe
        "C:\Windows\System32\shutdown.exe" /s /t 0
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1004
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x4 /state0:0xa38f3855 /state1:0x41c64e6d
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:4164

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\NebulaExecutor\NebulaExecutor.exe

      Filesize

      78KB

      MD5

      1f7c55917fc1e27a77bcaa3497156e87

      SHA1

      81f89045a559a1836a3fac0a36a7f7076c995339

      SHA256

      399b3c64845039ef901bd16539ee97688cc75eba8f9aae39353784dcd0d5f0f7

      SHA512

      381d354b71987339a78acf6d1df8db883b617e8da66ad54179a4f9940cf319d866f602ca09cb409cc95764c5f502dca24b96134e2305aa7feacc124d3ca05f8e

    • memory/3404-6-0x0000025371860000-0x0000025371878000-memory.dmp

      Filesize

      96KB

    • memory/3404-7-0x0000025373EB0000-0x0000025374072000-memory.dmp

      Filesize

      1.8MB

    • memory/3404-8-0x00000253747F0000-0x0000025374D18000-memory.dmp

      Filesize

      5.2MB