Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    04/06/2026, 19:24

General

  • Target
    2026-06-04_8b7a547081dc4c198db076ad77ef2f84_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.6MB
  • Sample260604-x4pndscz2v
  • SHA256 da6084e94454fdfa321c3431a8ced39b81135a5fdc616fc660896eeec85ed729
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

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

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

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 33 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.

  • Checks processor information in registry 2 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_8b7a547081dc4c198db076ad77ef2f84_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-04_8b7a547081dc4c198db076ad77ef2f84_elex_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:660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 660 -s 1404
      2⤵
      • Program crash
      PID:5320
  • C:\Users\Admin\AppData\Local\Temp\2026-06-04_8b7a547081dc4c198db076ad77ef2f84_elex_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-06-04_8b7a547081dc4c198db076ad77ef2f84_elex_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:1344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 1332
      2⤵
      • Program crash
      PID:1172
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 660 -ip 660
    1⤵
      PID:1244
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 1344 -ip 1344
      1⤵
        PID:2584

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            NPPDF32Adobe.exe

            • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AIR\NPPDF32Adobe.exe
            • Size 1.6MB
            • SHA256 da6084e94454fdfa321c3431a8ced39b81135a5fdc616fc660896eeec85ed729
            • MD5 SHA1 SHA512 SSDEEP TLSH

            RCXE63B.tmp

            • Path C:\Program Files (x86)\Common Files\System\ado\es-ES\RCXE63B.tmp
            • Size 1.6MB
            • SHA256 bc04da324166cca940e99e24ef1d455d6461678204e1772318e7d4600f9da0f8
            • MD5 SHA1 SHA512 SSDEEP TLSH