Overview

overview

10

Static

static

10

2026-08-20...op.exe

windows10-2004-x64

9

2026-08-20...op.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    20/08/2026, 12:10

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General

  • Target
    2026-08-20_9902358307ca69d95ba310db2adb365e_amadey_coinminer_elex_remcos_smoke-loader_stop.exe
  • Size 873KB
  • Sample260820-pb4ylsdb26
  • SHA256 7fc1cfe8244a45b8d8f267f358a2ddc2ab9c4da9c33cc29be9d5c028dc3c62fc
  • 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 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 6 IoCs

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

    upx
  • 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.

    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\2026-08-20_9902358307ca69d95ba310db2adb365e_amadey_coinminer_elex_remcos_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-20_9902358307ca69d95ba310db2adb365e_amadey_coinminer_elex_remcos_smoke-loader_stop.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:5792
  • C:\Windows\Syswow64\55e254d0
    C:\Windows\Syswow64\55e254d0
    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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4708

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        55e254d0
        • Path C:\Windows\SysWOW64\55e254d0
        • Size 873KB
        • SHA256 ff1af01f81d90fed8dd176a3d900cdc49fb5f3fa2914aedcb32153960f261343
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/4708-3-0x00000000003C0000-0x000000000044C000-memory.dmp
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        memory/4708-16-0x00000000003C0000-0x000000000044C000-memory.dmp
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        memory/4708-35-0x00000000003C0000-0x000000000044C000-memory.dmp
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        memory/5792-0-0x0000000000F80000-0x000000000100C000-memory.dmp
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        memory/5792-15-0x0000000000F80000-0x000000000100C000-memory.dmp
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