Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    10/05/2026, 11:14

General

  • Target
    2026-05-10_d537f52af60de08990195050a49b4f6e_amadey_coinminer_elex_remcos_smoke-loader.exe
  • Size 618KB
  • Sample260510-nb12aaev3v
  • SHA256 8f5caf3b6862f58aeb15bc0f03eb71c67b2aa81b5b3385d154c614c0014133fd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 15 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-10_d537f52af60de08990195050a49b4f6e_amadey_coinminer_elex_remcos_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-10_d537f52af60de08990195050a49b4f6e_amadey_coinminer_elex_remcos_smoke-loader.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4484
  • C:\Windows\Syswow64\4fdc6240
    C:\Windows\Syswow64\4fdc6240
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:660

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        4fdc6240

        • Path C:\Windows\SysWOW64\4fdc6240
        • Size 618KB
        • SHA256 e6b7975c060669539accb1a5148dfac733207c474f88de71a0464058056c75aa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/660-4-0x0000000000A80000-0x0000000000B09000-memory.dmp

        memory/660-12-0x0000000000A80000-0x0000000000B09000-memory.dmp

        memory/660-27-0x0000000000A80000-0x0000000000B09000-memory.dmp

        memory/4484-0-0x00000000006C0000-0x0000000000749000-memory.dmp

        memory/4484-10-0x00000000006C0000-0x0000000000749000-memory.dmp

        memory/4484-26-0x00000000006C0000-0x0000000000749000-memory.dmp

        memory/4484-46-0x00000000006C0000-0x0000000000749000-memory.dmp