Analysis

  • max time kernel
    299s
  • max time network
    292s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    25/09/2026, 18:47

General

  • Target
    agent-4312.exe
  • Size 14.0MB
  • Sample260925-xfg9eaha25
  • SHA256 77c4ca5ea6481637c7c9799eb3b1a57432754b6d8113e92a45af47df218a8012
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\agent-4312.exe
    "C:\Users\Admin\AppData\Local\Temp\agent-4312.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3292
    • C:\Users\Admin\AppData\Local\Temp\uosa98ty0xh07k\mrhg26jt64.exe
      C:\Users\Admin\AppData\Local\Temp\uosa98ty0xh07k\mrhg26jt64.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4228
      • C:\Users\Admin\AppData\Roaming\WindowsUpdate\agent\JesterWare.exe
        "C:\Users\Admin\AppData\Roaming\WindowsUpdate\agent\JesterWare.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Reads the TCP/IP host and domain name from the registry
        PID:4880
  • C:\Users\Admin\AppData\Roaming\WindowsUpdate\agent\JesterWare.exe
    C:\Users\Admin\AppData\Roaming\WindowsUpdate\agent\JesterWare.exe
    1⤵
    • Executes dropped EXE
    • Adds Run key to start application
    • Reads the TCP/IP host and domain name from the registry
    PID:2492

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        mrhg26jt64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\uosa98ty0xh07k\mrhg26jt64.exe
        • Size 9.0MB
        • SHA256 ee2207dbc87b7b56c6e373651ea30b26f2ebb278c3329ea1ad7be1f819eeeddc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        id

        • Path C:\Users\Admin\AppData\Roaming\WindowsUpdate\agent\id
        • Size 32B
        • SHA256 bb1dae1af8c6a705f80a17266f24658e47308b2b90df557b734a191846fbca53
        • MD5 SHA1 SHA512

        memory/2492-195-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-197-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-211-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-209-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-207-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-183-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-205-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-155-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-157-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-203-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-159-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-201-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-161-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-199-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-163-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-181-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-165-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-179-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-167-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-193-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-191-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-171-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-189-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-173-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-187-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-175-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-177-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/2492-185-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4228-4-0x00000002A1770000-0x00000002A177E000-memory.dmp

        memory/4228-29-0x00007FF7B3660000-0x00007FF7B5FB8000-memory.dmp

        memory/4880-186-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-196-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-180-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-184-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-178-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-182-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-174-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-188-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-172-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-190-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-170-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-192-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-168-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-194-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-166-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-70-0x00000003A51D0000-0x00000003A51DD000-memory.dmp

        memory/4880-164-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-198-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-162-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-200-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-160-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-202-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-158-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-204-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-154-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-206-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-60-0x0000000372200000-0x000000037220D000-memory.dmp

        memory/4880-208-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-30-0x0000000207610000-0x000000020761D000-memory.dmp

        memory/4880-210-0x00007FF639320000-0x00007FF63BC78000-memory.dmp

        memory/4880-40-0x000000029A970000-0x000000029A97D000-memory.dmp