Analysis

  • max time kernel
    149s
  • max time network
    149s
  • 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, 02:25

General

  • Target
    2026-05-05_7cbfd02d060f752ddae86cf67ad1c068_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 560KB
  • Sample260505-cwpcfaaz7l
  • SHA256 187e919f2b5ded3c1ed5420f149e86cd290aff8f86377453b756fe7c36c93d31
  • 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 10 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.

  • 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\2026-05-05_7cbfd02d060f752ddae86cf67ad1c068_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-05_7cbfd02d060f752ddae86cf67ad1c068_amadey_coinminer_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.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:5912
  • C:\Windows\Syswow64\83b55a4
    C:\Windows\Syswow64\83b55a4
    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:5888

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        83b55a4

        • Path C:\Windows\SysWOW64\83b55a4
        • Size 560KB
        • SHA256 8839253fe9d5f80436cf9ff619ea0cb33b117fe50ad68595fc2a62d6b2b92aac
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5888-4-0x0000000000610000-0x000000000069C000-memory.dmp

        memory/5888-19-0x0000000000610000-0x000000000069C000-memory.dmp

        memory/5888-34-0x0000000000610000-0x000000000069C000-memory.dmp

        memory/5912-0-0x0000000000D30000-0x0000000000DBC000-memory.dmp

        memory/5912-18-0x0000000000D30000-0x0000000000DBC000-memory.dmp