Overview

overview

10

Static

static

10

2026-09-29...ee.exe

windows10-2004-x64

10

2026-09-29...ee.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 22:12

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General

  • Target
    2026-09-29_366e51a066d49e6de6e05e1d2bd7ab9a_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260930-14p6psbe96
  • SHA256 d5c30235f016ac022a29909c21c6127d1105264a6907886259975cb0590e349d
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverystealcstealerupx

Malware Config

Signatures

  • Family: Stealc

    Stealc is an infostealer written in C++.

    stealerstealc
  • 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 18 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.

    upx
  • 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.

    discovery
  • 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.

    discovery
  • 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\2026-09-29_366e51a066d49e6de6e05e1d2bd7ab9a_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-29_366e51a066d49e6de6e05e1d2bd7ab9a_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:5952
  • C:\Windows\Syswow64\f0f4b80f
    C:\Windows\Syswow64\f0f4b80f
    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:1060

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        f0f4b80f
        • Path C:\Windows\SysWOW64\f0f4b80f
        • Size 1.7MB
        • SHA256 1029b23cff57fab6b84b7a4788fcf5958bca571baaa00568acbe792a2cf1fd0e
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/1060-4-0x0000000000960000-0x00000000009EC000-memory.dmp
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        memory/1060-19-0x0000000000960000-0x00000000009EC000-memory.dmp
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        memory/1060-42-0x0000000000960000-0x00000000009EC000-memory.dmp
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        memory/5952-0-0x0000000000550000-0x00000000005DC000-memory.dmp
        Download

        memory/5952-18-0x0000000000550000-0x00000000005DC000-memory.dmp
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