Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    11/05/2026, 04:40

General

  • Target
    2026-05-11_fe7c1098d01bdae8a317635dd9526950_coinminer_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.0MB
  • Sample260511-fat8caey3j
  • SHA256 4e99002df27c01bd3777a61bcbec36eb6e8043e4ffcab51f1ec75aafe4b15dc8
  • 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 38 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 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-11_fe7c1098d01bdae8a317635dd9526950_coinminer_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-11_fe7c1098d01bdae8a317635dd9526950_coinminer_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:4736
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4736 -s 1632
      2⤵
      • Program crash
      PID:2044
  • C:\Users\Admin\AppData\Local\Temp\2026-05-11_fe7c1098d01bdae8a317635dd9526950_coinminer_elex_smoke-loader_stealc_stop_tofsee.exe
    C:\Users\Admin\AppData\Local\Temp\2026-05-11_fe7c1098d01bdae8a317635dd9526950_coinminer_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:4280
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4280 -s 1368
      2⤵
      • Program crash
      PID:1072
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4736 -ip 4736
    1⤵
      PID:952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4280 -ip 4280
      1⤵
        PID:3352

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            RCXDD71.tmp

            • Path C:\Program Files (x86)\Windows NT\Accessories\de-DE\RCXDD71.tmp
            • Size 1.0MB
            • SHA256 4fd1dd836ef318dd749f059294a5b63cb688b7b50079deb7790978f8372d5fef
            • MD5 SHA1 SHA512 SSDEEP TLSH

            PowerShellPackageManagement.exe

            • Path C:\Program Files (x86)\WindowsPowerShell\Modules\PackageManagement\1.0.0.1\fr\PowerShellPackageManagement.exe
            • Size 1.0MB
            • SHA256 4e99002df27c01bd3777a61bcbec36eb6e8043e4ffcab51f1ec75aafe4b15dc8
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/4280-177-0x0000000002CA0000-0x0000000002CA7000-memory.dmp

            memory/4280-176-0x00000000029A0000-0x0000000002A22000-memory.dmp

            memory/4736-175-0x0000000002DD0000-0x0000000002DD7000-memory.dmp

            memory/4736-174-0x00000000023D0000-0x0000000002452000-memory.dmp