Overview

overview

10

Static

static

10

2026-09-22...ee.exe

windows10-2004-x64

10

2026-09-22...ee.exe

windows11-ltsc_2024-x64

10

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
    22/09/2026, 16:07

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General

  • Target
    2026-09-22_fbb6432997dde3af6f4a560e39c5bc11_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260922-tk2baswxc1
  • SHA256 b42a06b5b5d5ce3c85cd63ff5730451fd3f9b0758fc6d1bc173435758c9f1e2f
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverystealcspywarestealertrojanupx

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 4 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.

    upx
  • 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.

    discovery
  • Modifies data under HKEY_USERS 9 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
    defense_evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-22_fbb6432997dde3af6f4a560e39c5bc11_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-22_fbb6432997dde3af6f4a560e39c5bc11_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:2920
  • C:\Windows\Syswow64\12398d58
    C:\Windows\Syswow64\12398d58
    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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2964

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        12398d58
        • Path C:\Windows\SysWOW64\12398d58
        • Size 1.7MB
        • SHA256 a5aa654b699f9662dd0713f6674552d134ed11470973ca72d632fc103f540272
        • MD5 SHA1 SHA512 SSDEEP TLSH
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        memory/2920-0-0x0000000000C70000-0x0000000000CFC000-memory.dmp
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        memory/2920-10-0x0000000000C70000-0x0000000000CFC000-memory.dmp
        Download

        memory/2964-3-0x0000000000680000-0x000000000070C000-memory.dmp
        Download

        memory/2964-11-0x0000000000680000-0x000000000070C000-memory.dmp
        Download

        memory/2964-25-0x0000000000680000-0x000000000070C000-memory.dmp
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