Overview

overview

10

Static

static

10

2026-10-26...op.exe

windows10-2004-x64

9

2026-10-26...op.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/10/2026, 08:50

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General

  • Target
    2026-10-26_b3eb21519c378d0bdb0168ef604d3d0f_amadey_coinminer_elex_smoke-loader_stop.exe
  • Size 560KB
  • Sample261027-krmxtacx8m
  • SHA256 d985e5f72cc85fffe0472d524ec773487c760ae64546ea5cd101b019e8271258
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
discoveryupx

Malware Config

Signatures

  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 29 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 6 IoCs

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

    upx
  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

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

    discovery
  • 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.

    discovery
  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-10-26_b3eb21519c378d0bdb0168ef604d3d0f_amadey_coinminer_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-26_b3eb21519c378d0bdb0168ef604d3d0f_amadey_coinminer_elex_smoke-loader_stop.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:884
  • C:\Windows\Syswow64\a571da25
    C:\Windows\Syswow64\a571da25
    1⤵
    • Executes dropped EXE
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5412

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        a571da25
        • Path C:\Windows\SysWOW64\a571da25
        • Size 560KB
        • SHA256 08a7d94e954b3e7fed909c1510f590e495ffab4b67e61746d65603abf63f245e
        • MD5 SHA1 SHA512 SSDEEP TLSH
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        memory/884-0-0x0000000000830000-0x00000000008BC000-memory.dmp
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        memory/884-20-0x0000000000830000-0x00000000008BC000-memory.dmp
        Download

        memory/5412-3-0x0000000000220000-0x00000000002AC000-memory.dmp
        Download

        memory/5412-21-0x0000000000220000-0x00000000002AC000-memory.dmp
        Download

        memory/5412-46-0x0000000000220000-0x00000000002AC000-memory.dmp
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