Resubmissions

Analysis

  • max time kernel
    129s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-04-2024 19:16

Errors

Reason
Machine shutdown

General

  • Target

    Client builder.exe

  • Size

    78KB

  • MD5

    9547c3740dd2064871500a170e24894e

  • SHA1

    713f43fcb2246b0b5851e2cb68bc6c1e5b026a3e

  • SHA256

    97b054927f7c703590600c3c92f587b9ce2f9aea66c37f4af39e1dcd415c1969

  • SHA512

    cb1f79397b3984507eaaf8676c806116ca4eb1a8dc107efb172716de5b9fca47303fcde3290f68f190c2a9bd7c046b16b25f0b5bd83326fe7f6eebc32c3c9e74

  • SSDEEP

    1536:52WjO8XeEXFh5P7v88wbjNrfxCXhRoKV6+V+JPIC:5Zv5PDwbjNrmAE+5IC

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTIyODAxMDYwNDQzNDk1MjIyMw.GEisFj.5v3bSKq7shKRVwTx4MSA5Fkn-Cyp3LgvJvnRIw

  • server_id

    1228010915325280286

Signatures

  • Discord RAT

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

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 15 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client builder.exe
    "C:\Users\Admin\AppData\Local\Temp\Client builder.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Windows\System32\shutdown.exe
      "C:\Windows\System32\shutdown.exe" /s /t 0
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1576
  • C:\Windows\system32\LogonUI.exe
    "LogonUI.exe" /flags:0x4 /state0:0xa399c855 /state1:0x41c64e6d
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:1908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1788-0-0x0000026D7A280000-0x0000026D7A298000-memory.dmp

    Filesize

    96KB

  • memory/1788-1-0x0000026D7C850000-0x0000026D7CA12000-memory.dmp

    Filesize

    1.8MB

  • memory/1788-2-0x00007FFCE00C0000-0x00007FFCE0B81000-memory.dmp

    Filesize

    10.8MB

  • memory/1788-3-0x0000026D7C810000-0x0000026D7C820000-memory.dmp

    Filesize

    64KB

  • memory/1788-4-0x0000026D7D050000-0x0000026D7D578000-memory.dmp

    Filesize

    5.2MB

  • memory/1788-5-0x00007FFCE00C0000-0x00007FFCE0B81000-memory.dmp

    Filesize

    10.8MB

  • memory/1788-6-0x0000026D7C810000-0x0000026D7C820000-memory.dmp

    Filesize

    64KB

  • memory/1788-7-0x0000026D7C800000-0x0000026D7C80E000-memory.dmp

    Filesize

    56KB

  • memory/1788-8-0x00007FFCE00C0000-0x00007FFCE0B81000-memory.dmp

    Filesize

    10.8MB