Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    13/09/2026, 08:56

General

  • Target
    2026-09-13_eaefb8d16d66bc502d615d7d55b2168e_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe
  • Size 12.2MB
  • Sample260913-kwfdjavdnb
  • SHA256 e340ce66daef8dcd47d0f0e41d943bf2f4de674c5f3ed3c9578b3fec0dfbafa4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • tofsee

C2
  • svartalfheim.top

  • jotunheim.name

Signatures

  • Family: Tofsee

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

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Creates new service(s) 2 TTPs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Stops running service(s) 4 TTPs
  • 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.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • 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\2026-09-13_eaefb8d16d66bc502d615d7d55b2168e_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-13_eaefb8d16d66bc502d615d7d55b2168e_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4388
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\njpbsvek\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:3652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\bazablnq.exe" C:\Windows\SysWOW64\njpbsvek\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4808
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create njpbsvek binPath= "C:\Windows\SysWOW64\njpbsvek\bazablnq.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-09-13_eaefb8d16d66bc502d615d7d55b2168e_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1068
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description njpbsvek "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4536
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start njpbsvek
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3472
    • 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:1728
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4388 -s 1156
      2⤵
      • Program crash
      PID:3044
  • C:\Windows\SysWOW64\njpbsvek\bazablnq.exe
    C:\Windows\SysWOW64\njpbsvek\bazablnq.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-09-13_eaefb8d16d66bc502d615d7d55b2168e_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3748
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 516
      2⤵
      • Program crash
      PID:4060
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4388 -ip 4388
    1⤵
      PID:5068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3748 -ip 3748
      1⤵
        PID:3052

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            bazablnq.exe

            • Path C:\Users\Admin\AppData\Local\Temp\bazablnq.exe
            • Size 10.7MB
            • SHA256 15d3f8aeb34614ca670e46f4275d8b7dc09ca4e3e5a8a089355356109cb335aa
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/2296-9-0x0000000000800000-0x0000000000815000-memory.dmp

            memory/2296-11-0x0000000000800000-0x0000000000815000-memory.dmp

            memory/2296-12-0x0000000000800000-0x0000000000815000-memory.dmp

            memory/4388-1-0x0000000002F40000-0x0000000003040000-memory.dmp

            memory/4388-2-0x00000000047E0000-0x00000000047F3000-memory.dmp

            memory/4388-8-0x00000000047E0000-0x00000000047F3000-memory.dmp