Overview

overview

6

Static

static

3

2026-04-15...ee.exe

windows10-2004-x64

6

2026-04-15...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    115s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    15/04/2026, 04:41

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General

  • Target
    2026-04-15_9b1afd5c8fb63a05a679b362c19fb72c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 949KB
  • Sample260415-fbcppaez2p
  • SHA256 854c0c7b98e53ee094ec741f7b93e94da822f7f2cc081945b28cf9bf4993b1fe
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
6/10
discoverypersistence

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Program crash 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
  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-15_9b1afd5c8fb63a05a679b362c19fb72c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-15_9b1afd5c8fb63a05a679b362c19fb72c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 1676
      2⤵
      • Program crash
      PID:4016
  • C:\Users\Admin\AppData\Local\Temp\2026-04-15_9b1afd5c8fb63a05a679b362c19fb72c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-04-15_9b1afd5c8fb63a05a679b362c19fb72c_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4584
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4584 -s 1432
      2⤵
      • Program crash
      PID:1852
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4428 -ip 4428
    1⤵
      PID:5068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 4584 -ip 4584
      1⤵
        PID:2072

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            AdobeNPPDF32.exe
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\AdobeNPPDF32.exe
            • Size 951KB
            • SHA256 44be0a5af1fec76c325fcc3df4cffd142e17ab14fb3cdb6f47eb14f36a089264
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            MicrosoftTools.exe
            • Path C:\Program Files (x86)\Common Files\Microsoft Shared\VSTA\AppInfoDocument\Microsoft.VisualStudio.Tools.Office.AppInfoDocument\MicrosoftTools.exe
            • Size 951KB
            • SHA256 01d2d05ea2feab85ed4cb7a4b6568b4f8daa1150c4d65bc36a7f825639566f59
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            wmplayerWMPNSSUI12.0.22000.1.exe
            • Path C:\Program Files (x86)\Windows Media Player\it-IT\wmplayerWMPNSSUI12.0.22000.1.exe
            • Size 949KB
            • SHA256 854c0c7b98e53ee094ec741f7b93e94da822f7f2cc081945b28cf9bf4993b1fe
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/4428-92-0x0000000000CD0000-0x0000000000F5B000-memory.dmp
            Download

            memory/4428-106-0x0000000000CD0000-0x0000000000F5B000-memory.dmp
            Download

            memory/4584-93-0x0000000000A80000-0x0000000000D0B000-memory.dmp
            Download

            memory/4584-119-0x0000000000A80000-0x0000000000D0B000-memory.dmp
            Download

            memory/4584-120-0x0000000000A80000-0x0000000000D0B000-memory.dmp
            Download