Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    04/08/2026, 16:18

General

  • Target
    2026-08-04_2e60a77844de3bf997474ebd58a8a35d_icedid_njrat.exe
  • Size 2.5MB
  • Sample260804-tr3spsstew
  • SHA256 a598268e22bc30c46fa7c4afa97709f6d3ecf4bdab2d51e06ef982529ab26024
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • quasar

Attributes
  • encryption_key

    f4acfa95bb9a4f33b8aed5edebecb715cabcdb74

  • key_salt

    5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382

  • reconnect_delay

    5000

Signatures

  • Family: Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Detects Windows executables referencing non-Windows User-Agents 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers 1 IoCs
  • Detects executables containing common artifacts observed in infostealers 1 IoCs
  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-04_2e60a77844de3bf997474ebd58a8a35d_icedid_njrat.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-04_2e60a77844de3bf997474ebd58a8a35d_icedid_njrat.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4532
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "WindowsHelper" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsHelper.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:1552

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Tmp6519.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tmp6519.tmp
        • Size 4KB
        • SHA256 a9f5196e2b0ac6588c2f7cdda4793b96ac6a6e83659acfea62b00e6bd76637fc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4532-9-0x00007FF862110000-0x00007FF862AB4000-memory.dmp

        memory/4532-2-0x00007FF862110000-0x00007FF862AB4000-memory.dmp

        memory/4532-3-0x00007FF862110000-0x00007FF862AB4000-memory.dmp

        memory/4532-4-0x000002840A3A0000-0x000002840A3B6000-memory.dmp

        memory/4532-8-0x00007FF862110000-0x00007FF862AB4000-memory.dmp

        memory/4532-0-0x00007FF86229F000-0x00007FF8622A0000-memory.dmp

        memory/4532-1-0x0000028422E60000-0x000002842303A000-memory.dmp

        memory/4532-20-0x00007FF862110000-0x00007FF862AB4000-memory.dmp

        memory/4532-21-0x000002840A640000-0x000002840A652000-memory.dmp

        memory/4532-22-0x000002840A6D0000-0x000002840A720000-memory.dmp

        memory/4532-23-0x0000028422D30000-0x0000028422DE2000-memory.dmp

        memory/4532-24-0x000002840A650000-0x000002840A69C000-memory.dmp

        memory/4532-25-0x00007FF862110000-0x00007FF862AB4000-memory.dmp