Analysis

  • max time kernel
    150s
  • 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
    03/05/2026, 12:43

General

  • Target
    2026-05-03_e7b678c57f6b6d1c21d4d67bcd8f6b0e_amadey_coinminer_elex_smoke-loader_stop.exe
  • Size 560KB
  • Sample260503-pxxreshv71
  • SHA256 bbe43a1d9254d9d2fa2476927199a5d063e8edd18b7b638ecaa761894d899aa0
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

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
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-03_e7b678c57f6b6d1c21d4d67bcd8f6b0e_amadey_coinminer_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-03_e7b678c57f6b6d1c21d4d67bcd8f6b0e_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:3404
  • C:\Windows\Syswow64\a987d39a
    C:\Windows\Syswow64\a987d39a
    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:3448

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        a987d39a

        • Path C:\Windows\SysWOW64\a987d39a
        • Size 560KB
        • SHA256 b6633a25e440e2ab13c1be16b725e59554c72a79bebe4bf02deffb6fb3ef3e78
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3404-0-0x0000000000630000-0x00000000006BC000-memory.dmp

        memory/3404-10-0x0000000000630000-0x00000000006BC000-memory.dmp

        memory/3448-3-0x0000000000A70000-0x0000000000AFC000-memory.dmp

        memory/3448-11-0x0000000000A70000-0x0000000000AFC000-memory.dmp

        memory/3448-26-0x0000000000A70000-0x0000000000AFC000-memory.dmp