Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/06/2026, 16:49

General

  • Target
    2026-06-03_c351d3f13b94ca22a6c7033a5c4d31c2_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 252KB
  • Sample260603-vb6ebsc13l
  • SHA256 e20e3b16de2ba32684fe9ab72ed187126753376c342db7e4a973cc818d9be549
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Renames multiple (256) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-03_c351d3f13b94ca22a6c7033a5c4d31c2_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-03_c351d3f13b94ca22a6c7033a5c4d31c2_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Windows\SysWOW64\net.exe
      net stop "Kingsoft AntiVirus Service"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3816
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\$$aFD2C.bat
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1028
    • C:\Windows\Logo1_.exe
      C:\Windows\Logo1_.exe
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Adds Run key to start application
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2748
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2236
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1256
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2084
  • C:\Windows\uninstall\rundl132.exe
    C:\Windows\uninstall\rundl132.exe
    1⤵
    • Drops file in Drivers directory
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2116

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCX9711.tmp

        • Path C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RCX9711.tmp
        • Size 156KB
        • SHA256 60ee42c63ff04bd4edef5797bc1928b6efc41416607b68df927869152266ea71
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX99B4.tmp

        • Path C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\RCX99B4.tmp
        • Size 94KB
        • SHA256 f4c2d252ef6b144e93225ed54b3c3d69e9e710b8e43112408b1634a1154ccf61
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9C36.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeCore\139.0.3405.125\RCX9C36.tmp
        • Size 103KB
        • SHA256 9bdaae122d13993cf58f0262a3a97fb21fd6e1f273627274dc3f862ca3812125
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9C87.tmp

        • Path C:\Program Files (x86)\Microsoft\EdgeUpdate_bk\RCX9C87.tmp
        • Size 91KB
        • SHA256 1964546b73a86dbef97f3fe7f48532d7983a56ae67e905669565fe7a8fdbdb3a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9B25.tmp

        • Path C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\RCX9B25.tmp
        • Size 118KB
        • SHA256 d15d9c5be102ec8f6ae738c053d9d9c7c75c9a98442df37b3faf6ddb953b3df5
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX9E4C.tmp

        • Path C:\Program Files (x86)\Mozilla Maintenance Service\RCX9E4C.tmp
        • Size 100KB
        • SHA256 faa50ea1a694036a9b688e8bd62f24982bf577abd26928812920198c9542492c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8A8A.tmp

        • Path C:\Program Files\7-Zip\RCX8A8A.tmp
        • Size 91KB
        • SHA256 f1f717a3565541a83b222ca6466eed1ab3d869e688623c51d71950a817c527d0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCX8E4E.tmp

        • Path C:\Program Files\Mozilla Firefox\RCX8E4E.tmp
        • Size 91KB
        • SHA256 6ad0195bf8aa81b9a694e8099857228643744294d3f02fa4fb7082ee88b7f1c7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        RCXA2D2.tmp

        • Path C:\ProgramData\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\RCXA2D2.tmp
        • Size 92KB
        • SHA256 82d388f39ca6e1663f8d094c7f9d548a07654dd50c1174ca0bb509123d8d71da
        • MD5 SHA1 SHA512 SSDEEP TLSH

        $$aFD2C.bat

        • Path C:\Users\Admin\AppData\Local\Temp\$$aFD2C.bat
        • Size 896B
        • SHA256 5c5a4265ee07b2dace07b3f48ffc9656ba4af71569514c036b330e4e4fde142c
        • MD5 SHA1 SHA512 TLSH

        2026-06-03_c351d3f13b94ca22a6c7033a5c4d31c2_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe.exe

        • Path C:\Users\Admin\AppData\Local\Temp\2026-06-03_c351d3f13b94ca22a6c7033a5c4d31c2_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe.exe
        • Size 159KB
        • SHA256 4669046bf841068b51beb940dfc397d70067bf7340fb8f93c973496ff304a91b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Logo1_.exe

        • Path C:\Windows\Logo1_.exe
        • Size 93KB
        • SHA256 d3b68e0babdffe5f6077300cb43ec88dd339dae7f5999a90a6a3aeae351becba
        • MD5 SHA1 SHA512 SSDEEP TLSH

        hosts

        • Path C:\Windows\system32\drivers\etc\hosts
        • Size 842B
        • SHA256 d9704dab05e988be3e5e7b7c020bb9814906d11bb9c31ad80d4ed1316f6bc94e
        • MD5 SHA1 SHA512 TLSH

        memory/2116-18-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2612-0-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2612-11-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2748-21-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2748-814-0x0000000000400000-0x0000000000429000-memory.dmp

        memory/2748-1257-0x0000000000400000-0x0000000000429000-memory.dmp