Overview

overview

6

Static

static

3

2026-05-28...ee.exe

windows10-2004-x64

2026-05-28...ee.exe

windows11-21h2-x64

6

Analysis

  • max time kernel
    149s
  • max time network
    94s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    28/05/2026, 17:17

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General

  • Target
    2026-05-28_51d6afb48200172524a2b41c97bf02d3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.2MB
  • Sample260528-vtzphahs81
  • SHA256 67b74df974e92824856d18820115a74f9d314fc2655978b42cdcc00abbc89c86
  • 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 21 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 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-28_51d6afb48200172524a2b41c97bf02d3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-28_51d6afb48200172524a2b41c97bf02d3_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:4812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4812 -s 1456
      2⤵
      • Program crash
      PID:820
  • C:\Users\Admin\AppData\Local\Temp\2026-05-28_51d6afb48200172524a2b41c97bf02d3_elex_remcos_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-05-28_51d6afb48200172524a2b41c97bf02d3_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:3908
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3908 -s 1268
      2⤵
      • Program crash
      PID:1148
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4812 -ip 4812
    1⤵
      PID:3240
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3908 -ip 3908
      1⤵
        PID:4852

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            RCX57B8.tmp
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Esl\RCX57B8.tmp
            • Size 1.2MB
            • SHA256 61f0b2cb555af990c231a16396b7f5ae42029109d650bbcf90e0c69264cc6c8b
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            qrcodepmppdf417pmp.exe
            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\AcroForm\PMP\qrcodepmppdf417pmp.exe
            • Size 1.2MB
            • SHA256 67b74df974e92824856d18820115a74f9d314fc2655978b42cdcc00abbc89c86
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            RCX3E9C.tmp
            • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\EBWebView\x86\RCX3E9C.tmp
            • Size 1.2MB
            • SHA256 c21ca42939acf9d27ee705eabd538ad5e6005be8e1b31bd66d53720ff7656d16
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download