Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 04:45

General

  • Target
    2026-08-23_960270a33d1f552b7a61959ad23f700c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.1MB
  • Sample260824-fdc38sysax
  • SHA256 e4a727666f9fcbfd795e94f9270b32b146ed58fef0857ec1eb19a0a0c1ea1c5e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 6 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 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-23_960270a33d1f552b7a61959ad23f700c_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-23_960270a33d1f552b7a61959ad23f700c_amadey_coinminer_cryptolocker_elex_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:4144
  • C:\Windows\Syswow64\c143925a
    C:\Windows\Syswow64\c143925a
    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:1060

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        c143925a

        • Path C:\Windows\SysWOW64\c143925a
        • Size 1.1MB
        • SHA256 8d314bc751339187f83238809dd8750bc55fe8a206c9887ff402083b0f3a2366
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1060-3-0x0000000000FC0000-0x000000000104C000-memory.dmp

        memory/1060-17-0x0000000000FC0000-0x000000000104C000-memory.dmp

        memory/1060-28-0x0000000000FC0000-0x000000000104C000-memory.dmp

        memory/4144-0-0x0000000000620000-0x00000000006AC000-memory.dmp

        memory/4144-16-0x0000000000620000-0x00000000006AC000-memory.dmp