Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    23/05/2026, 17:46

General

  • Target
    2026-05-23_c377986b556e742bbbec914054aea987_amadey_coinminer_cryptolocker_elex_graphican_rhadamanthys_smoke-loader_stop.exe
  • Size 743KB
  • Sample260523-wcbf1sav9x
  • SHA256 5654656ae272b74369c068b9d92ea8334a9fe03c75cedec35b8c3cffb6682db0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Custom signature
    Detection of CryptoLocker Variants 1 IoCs
  • Custom signature
    Detection of Cryptolocker Samples 1 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 17 IoCs
  • 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\2026-05-23_c377986b556e742bbbec914054aea987_amadey_coinminer_cryptolocker_elex_graphican_rhadamanthys_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-23_c377986b556e742bbbec914054aea987_amadey_coinminer_cryptolocker_elex_graphican_rhadamanthys_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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5320
  • C:\Windows\Syswow64\273a9d16
    C:\Windows\Syswow64\273a9d16
    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:5392

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        273a9d16

        • Path C:\Windows\SysWOW64\273a9d16
        • Size 743KB
        • SHA256 c671a7c21abfd5e6741462bc05cc6642c777cddcd0c7cbdb3c215c6b6c795b95
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/5320-0-0x0000000000A90000-0x0000000000AF3000-memory.dmp

        memory/5392-4-0x0000000000010000-0x0000000000073000-memory.dmp