Analysis

  • max time kernel
    150s
  • max time network
    115s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    16/09/2026, 18:29

General

  • Target
    file_ea7a051a82d4b3b5.exe
  • Size 6.4MB
  • Sample260916-w5bbqacd44
  • SHA256 d49785f0195374536fa826a9f2228da105b80fa7bff5d8bee24c7260c665a09e
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • bridgeagent

C2
  • 2.27.168.45

Signatures

  • Family: BridgeAgent,ShadowHVNC

    BridgeAgent aka ShadowHVNC is a Windows backdoor and loader written in Rust.

  • Detects BridgeAgent aka ShadowHVNC loader 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Modifies registry key 1 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file_ea7a051a82d4b3b5.exe
    "C:\Users\Admin\AppData\Local\Temp\file_ea7a051a82d4b3b5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Windows\system32\reg.exe
      "reg.exe" ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v BridgeAgent /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe\" --supervisor" /f
      2⤵
      • Adds Run key to start application
      • Modifies registry key
      PID:4688
    • C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe
      "C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe" --supervisor
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4664
      • C:\Windows\system32\reg.exe
        "reg.exe" ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v BridgeAgent /t REG_SZ /d "\"C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe\" --supervisor" /f
        3⤵
        • Adds Run key to start application
        • Modifies registry key
        PID:612
      • C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe
        "C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe" --runtime --supervisor-pid 4664
        3⤵
        • Executes dropped EXE
        PID:2840

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        agent.db

        • Path C:\Users\Admin\AppData\Local\Bridge\agent.db
        • Size 60KB
        • SHA256 06454fa0d40238b2f3157ec5ed05bbc2e0de9993fa9c6036093dfd2151e7fa61
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 4KB
        • SHA256 da6bfa7b80a2168b3dcebc39be64685d48b77f91af459a798341176b85f5bdf9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 1KB
        • SHA256 c638c0bde4976caf25bcc7049a304760483db4165bb326b96b545a839a52302d
        • MD5 SHA1 SHA512 TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 2KB
        • SHA256 307599ad27e3348e81317b31b9d1ab9a7f4273f29d1478038e16b02c22c15f34
        • MD5 SHA1 SHA512 TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 950B
        • SHA256 917fe4478571c638daadeb67e9b0e0fc91e4a33b6b22f34c3c207083c2e6f704
        • MD5 SHA1 SHA512 TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 2KB
        • SHA256 1c8e1bd919535b0697b2aa0a45d39aac0e35767f96fefc015bdff5fbebf8ce1d
        • MD5 SHA1 SHA512 TLSH

        bridge-agent.log

        • Path C:\Users\Admin\AppData\Local\Bridge\logs\bridge-agent.log
        • Size 3KB
        • SHA256 ccc172ff63f195f1d9c40e94b55a1d9d3573ae9ae772ca2685f121942bdf9e52
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 a522e50310c8967d3e8a89a87f1a576ff882ef7fb5c2ec1831a91e0702d8a4c5
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 fd842eb7e5ba1ec97019e34ec9b6dca7bfe556a299b831496bc5313bb772f273
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 9c0653d44e4c8bb4650b902d67c40bd968dcc61996ec837f588fafd8bfce3e7f
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 69247f02b41b738c3946873eb0eb8fa2d97f4c39bf54fb8e9e9d95f69089711f
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 096618f14a12e5fc9f14dc43ecde9dd5cd29bf3210579680cdf4c1e86dd38efa
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 881ce2323f9ac93875ed15675e4e397b8900fcdc3eee227ae840e9fe8d4c6ceb
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 ba80a54e52adb925c73c0fa8080834db54c143ff558977923f9ac27a5995f775
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 77e939c2d187bb24d9fa4df59470b40eff4c6be51c71d3b7a09ba25735f1ad0c
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 15b6e41dbce698f61b2d6cf0c7bf42d75d04c3c189d57abc705c8391a7778b5a
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 beae4cfcb99592d2476b5a86f4669ef3a650c5c7e9e53b426679fe25e258acc2
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 dfefb7d1c923696e2d58a2fcc94602dbce682e69fe8a00e6530206321a5387a2
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 8056f21a9ffc5062bf1d892cd3cefb0886d2ac0361cfa065b9752472516ec75d
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 5fe42df9c853e204982eef680f7bae1dbbda2ba7f064059551425d547b2f31cf
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 684969070fda67a622047bfdec91399b18565597645a8184055156a3c0221b19
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 47b94ce2052cad836e51b9cbfdc2ad332c38fc76d933b179ae2bd14ce0237405
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 822c2456a8d09d3f34e577c288863a15e5c7174bdc4f2732b51884dfb8869a78
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 b48d4554d70292c406ff2015469a950b61f553360891cfc5566566ae4f5963f8
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 b2e595561c2154850ed093f51a16a8f1a7b58b3e011bb4c2300642fa9c95b7be
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 05bd7eaf8615a209ee99e13e1350afbb75309f2011d4fe1bb979f2b5fc086e96
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 46d8dc9edcdbb7667bac4e2cfd279d3e79b25474abc531e49037ca2bec8c33d4
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 f9718fe2752b24b19cd8f2bb2f9dee178fc5e0cd2b492b58c944b7d4edcc1f89
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 dc7dedb891049c17220e47a0d6a7202a5bd2dbcbd35639f831ec01da24122714
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 7a2c22a983d5accdba0bd91f8c5c9ea3caffb856015533009e1eb39272a88857
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 ff8c043bbcb0b43acca5af3cc75b88ac8aeda5328079f814f57f1d109e96dc6f
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 d1f562d810f069bd73284811b1d341754227d6f879aff7a8ead0a86d9e08cdb3
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 07cb6351ca995aae13afac59e5b7614383daadb78c9dc1032468610130eae37c
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 013197ae2b826df80e6fce6a601267c21ecfa4f14444420f0ab0c673df22ac7b
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 f0fbab4aca7872f677efa14d5c72933ad5f548ab16a798828801fa8952c03ef4
        • MD5 SHA1 SHA512 TLSH

        supervisor.heartbeat.json

        • Path C:\Users\Admin\AppData\Local\Bridge\supervisor.heartbeat.json
        • Size 123B
        • SHA256 0fc173e4c90e75bc843a0514628ccba27fdd8b0413357748dccfed764eb088fd
        • MD5 SHA1 SHA512 TLSH

        BridgeAgent.exe

        • Path C:\Users\Admin\AppData\Local\Programs\Bridge\BridgeAgent.exe
        • Size 6.4MB
        • SHA256 d49785f0195374536fa826a9f2228da105b80fa7bff5d8bee24c7260c665a09e
        • MD5 SHA1 SHA512 SSDEEP TLSH