Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    07/05/2026, 01:04

General

  • Target
    2026-05-07_050ce62781f64941dcddc3a1c83267b6_amadey_coinminer_elex_smoke-loader_stop.exe
  • Size 525KB
  • Sample260507-bexrtacz3t
  • SHA256 b6fd46c9376140adafe6b2b30ce164b41d532f06c40fa98347719329add5a911
  • MD5 SHA1 SHA512 SSDEEP TLSH

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 11 IoCs
  • UPX packed file 6 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\2026-05-07_050ce62781f64941dcddc3a1c83267b6_amadey_coinminer_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-07_050ce62781f64941dcddc3a1c83267b6_amadey_coinminer_elex_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:2036
  • C:\Windows\Syswow64\efe38dc8
    C:\Windows\Syswow64\efe38dc8
    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:4024

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        efe38dc8

        • Path C:\Windows\SysWOW64\efe38dc8
        • Size 525KB
        • SHA256 089c7728f8f78d092fb192fc26731d74dcc0a7fc9a9195bcb2ac334dda41d978
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2036-0-0x0000000000F10000-0x0000000000F9C000-memory.dmp

        memory/2036-10-0x0000000000F10000-0x0000000000F9C000-memory.dmp

        memory/4024-7-0x00000000004B0000-0x000000000053C000-memory.dmp

        memory/4024-11-0x00000000004B0000-0x000000000053C000-memory.dmp

        memory/4024-27-0x00000000004B0000-0x000000000053C000-memory.dmp