Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/07/2026, 02:54

General

  • Target
    2026-07-10_5495394f2f98c20dc7ece87d212a1fe8_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe
  • Size 12.3MB
  • Sample260710-dd85kacv3n
  • SHA256 a9308548c380bfa4fb4643c26784620d204f0f8cf9fc2845b84b8785c272793a
  • 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.

  • 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
  • Stops running service(s) 4 TTPs
  • Drops file in System32 directory 2 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.

  • Modifies data under HKEY_USERS 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-07-10_5495394f2f98c20dc7ece87d212a1fe8_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-10_5495394f2f98c20dc7ece87d212a1fe8_amadey_elex_njrat_redline-stealer_rhadamanthys_smoke-loader_stop_tofsee.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4516
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rpqjizck\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\olfgdlbi.exe" C:\Windows\SysWOW64\rpqjizck\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5104
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create rpqjizck binPath= "C:\Windows\SysWOW64\rpqjizck\olfgdlbi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-10_5495394f2f98c20dc7ece87d212a1fe8_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:4724
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description rpqjizck "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3348
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start rpqjizck
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4220
    • 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:4124
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4516 -s 644
      2⤵
      • Program crash
      PID:2116
  • C:\Windows\SysWOW64\rpqjizck\olfgdlbi.exe
    C:\Windows\SysWOW64\rpqjizck\olfgdlbi.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-10_5495394f2f98c20dc7ece87d212a1fe8_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:4192
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:4376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 596
      2⤵
      • Program crash
      PID:2160
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4516 -ip 4516
    1⤵
      PID:4800
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4192 -ip 4192
      1⤵
        PID:2776

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            olfgdlbi.exe

            • Path C:\Users\Admin\AppData\Local\Temp\olfgdlbi.exe
            • Size 10.1MB
            • SHA256 e8f831dd62625aaa1d2d1c2a4986c19f28c6d9a2235709bb329195bf11041af5
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/4376-9-0x0000000000130000-0x0000000000145000-memory.dmp

            memory/4376-11-0x0000000000130000-0x0000000000145000-memory.dmp

            memory/4376-12-0x0000000000130000-0x0000000000145000-memory.dmp

            memory/4516-2-0x0000000004940000-0x0000000004953000-memory.dmp

            memory/4516-1-0x0000000002E60000-0x0000000002F60000-memory.dmp

            memory/4516-8-0x0000000004940000-0x0000000004953000-memory.dmp