Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    05/05/2026, 12:11

General

  • Target
    2026-05-05_0be5381b15cbaa99a7cea3fc061b8dda_amadey_coinminer_elex_remcos_smoke-loader.exe
  • Size 618KB
  • Sample260505-pc33psa14r
  • SHA256 1aa3cf2e4c51dc68b25c97b82ff82380f3ea72b1d61568d74ec0b33653f4eea2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    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 13 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\2026-05-05_0be5381b15cbaa99a7cea3fc061b8dda_amadey_coinminer_elex_remcos_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_0be5381b15cbaa99a7cea3fc061b8dda_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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1056
  • C:\Windows\Syswow64\aafebb
    C:\Windows\Syswow64\aafebb
    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:3392

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        aafebb

        • Path C:\Windows\SysWOW64\aafebb
        • Size 618KB
        • SHA256 196c1bdea2e1b208d62f09bb4f66901cc60b480710978d33fad675e1b0b1dbaf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1056-0-0x0000000000130000-0x00000000001B9000-memory.dmp

        memory/1056-10-0x0000000000130000-0x00000000001B9000-memory.dmp

        memory/1056-23-0x0000000000130000-0x00000000001B9000-memory.dmp

        memory/1056-49-0x0000000000130000-0x00000000001B9000-memory.dmp

        memory/3392-4-0x0000000000450000-0x00000000004D9000-memory.dmp

        memory/3392-12-0x0000000000450000-0x00000000004D9000-memory.dmp

        memory/3392-24-0x0000000000450000-0x00000000004D9000-memory.dmp