Analysis

  • max time kernel
    150s
  • max time network
    144s
  • 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, 17:29

General

  • Target
    2026-09-29_adb11d5eed66a361edced63b08489008_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260930-v22h3avdpg
  • SHA256 92013a254e6efd2ebc2307ef565add03a516ee0ca4e5ab8fd2763b28af939a0f
  • 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 20 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-29_adb11d5eed66a361edced63b08489008_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-29_adb11d5eed66a361edced63b08489008_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:4308
  • C:\Windows\Syswow64\aa7f9815
    C:\Windows\Syswow64\aa7f9815
    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:4572

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        4e4638

        • Path C:\Windows\4e4638
        • Size 506B
        • SHA256 c735f298a7b9871be8d93883ae011288a575f5ca0d732dc9b35a305d28d9c55a
        • MD5 SHA1 SHA512 TLSH

        aa7f9815

        • Path C:\Windows\SysWOW64\aa7f9815
        • Size 1.7MB
        • SHA256 85f72c6d9616642e16e486846ff3a41da1bc76b326dc35ac9f225b8db96fe031
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4308-0-0x0000000000180000-0x000000000020C000-memory.dmp

        memory/4308-20-0x0000000000180000-0x000000000020C000-memory.dmp

        memory/4572-4-0x0000000000630000-0x00000000006BC000-memory.dmp

        memory/4572-21-0x0000000000630000-0x00000000006BC000-memory.dmp

        memory/4572-40-0x0000000000630000-0x00000000006BC000-memory.dmp