Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    30/09/2026, 07:27

General

  • Target
    2026-09-30_d876f7f9bbf57e8f652ee675d8e103f9_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1022KB
  • Sample260930-jac6lsvt3n
  • SHA256 b3bc919afd79af46f1d5c87f63e7414855cd6e63333be3615f893eddd601b5c6
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Stealc

    Stealc is an infostealer written in C++.

  • Detects Stealc stealer Version 3 1 IoCs
  • 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 27 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
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\2026-09-30_d876f7f9bbf57e8f652ee675d8e103f9_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-30_d876f7f9bbf57e8f652ee675d8e103f9_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
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:6092
  • C:\Windows\Syswow64\7cd63cfa
    C:\Windows\Syswow64\7cd63cfa
    1⤵
    • Executes dropped EXE
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2232

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        7cd63cfa

        • Path C:\Windows\SysWOW64\7cd63cfa
        • Size 1022KB
        • SHA256 7569e09ddbfb50bafc8660b0f9e0d5e9f4a7f7df204bf1de0221c0ad6ffd0b47
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2232-4-0x00000000004C0000-0x000000000054C000-memory.dmp

        memory/2232-19-0x00000000004C0000-0x000000000054C000-memory.dmp

        memory/2232-40-0x00000000004C0000-0x000000000054C000-memory.dmp

        memory/6092-0-0x0000000000990000-0x0000000000A1C000-memory.dmp

        memory/6092-18-0x0000000000990000-0x0000000000A1C000-memory.dmp