Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/07/2026, 06:32

General

  • Target
    2026-07-13_c9d3c3128ea9ba0bb38d69b19f5e346f_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
  • Size 14.4MB
  • Sample260713-hawsaaex4s
  • SHA256 208a4cd15093dc347b76e1e0382a03c5684c3cbc4edbeb6bc797bafe2f8bc199
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • tofsee

C2
  • vanaheim.cn

  • jotunheim.name

Signatures

  • Family: Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Windows security bypass 2 TTPs 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Creates new service(s) 2 TTPs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-13_c9d3c3128ea9ba0bb38d69b19f5e346f_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-13_c9d3c3128ea9ba0bb38d69b19f5e346f_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1296
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\modmqwqd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4168
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ziozxme.exe" C:\Windows\SysWOW64\modmqwqd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2976
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create modmqwqd binPath= "C:\Windows\SysWOW64\modmqwqd\ziozxme.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-13_c9d3c3128ea9ba0bb38d69b19f5e346f_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1240
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description modmqwqd "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1292
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start modmqwqd
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4784
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:2968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1296 -s 840
      2⤵
      • Program crash
      PID:352
  • C:\Windows\SysWOW64\modmqwqd\ziozxme.exe
    C:\Windows\SysWOW64\modmqwqd\ziozxme.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-13_c9d3c3128ea9ba0bb38d69b19f5e346f_amadey_elex_njrat_remcos_rhadamanthys_smoke-loader_stealc.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1260
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3608
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1260 -s 612
      2⤵
      • Program crash
      PID:360
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1260 -ip 1260
    1⤵
      PID:4824
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 392 -p 1296 -ip 1296
      1⤵
        PID:4252

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            ziozxme.exe

            • Path C:\Users\Admin\AppData\Local\Temp\ziozxme.exe
            • Size 10.5MB
            • SHA256 3b6a60c918c7ce0c8280108e4b024ff12567c5cf0942097aabb8649b3b2d876e
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1296-1-0x0000000002720000-0x0000000002820000-memory.dmp

            memory/1296-2-0x0000000004220000-0x0000000004233000-memory.dmp

            memory/1296-11-0x0000000004220000-0x0000000004233000-memory.dmp

            memory/3608-7-0x0000000000B80000-0x0000000000B95000-memory.dmp

            memory/3608-12-0x0000000000B80000-0x0000000000B95000-memory.dmp

            memory/3608-13-0x0000000000B80000-0x0000000000B95000-memory.dmp