Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/08/2026, 21:29

General

  • Target
    2026-08-05_33a78fb39a665cde1f02f46cd20f8217_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
  • Size 14.4MB
  • Sample260805-1cdnlagm21
  • SHA256 e870772ecea96866d6dff099bbbcaa194de351b44631a6b6dab3e147a129015e
  • 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.

  • 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\2026-08-05_33a78fb39a665cde1f02f46cd20f8217_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-05_33a78fb39a665cde1f02f46cd20f8217_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5536
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\siaruqfh\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:5220
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kvrwngsh.exe" C:\Windows\SysWOW64\siaruqfh\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4672
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create siaruqfh binPath= "C:\Windows\SysWOW64\siaruqfh\kvrwngsh.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-05_33a78fb39a665cde1f02f46cd20f8217_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1840
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description siaruqfh "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2568
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start siaruqfh
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4404
    • 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:1208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5536 -s 1088
      2⤵
      • Program crash
      PID:3572
  • C:\Windows\SysWOW64\siaruqfh\kvrwngsh.exe
    C:\Windows\SysWOW64\siaruqfh\kvrwngsh.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-05_33a78fb39a665cde1f02f46cd20f8217_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stop.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4428
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:5796
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 588
      2⤵
      • Program crash
      PID:5908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5536 -ip 5536
    1⤵
      PID:3444
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4428 -ip 4428
      1⤵
        PID:4340

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            kvrwngsh.exe

            • Path C:\Users\Admin\AppData\Local\Temp\kvrwngsh.exe
            • Size 11.0MB
            • SHA256 663f2b8cc8cb72a5850f2b6848e86e7ee7a0e7e3c34ce2b2647f3ca42544bc9f
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/4428-9-0x0000000000740000-0x0000000000840000-memory.dmp

            memory/4428-14-0x0000000000400000-0x000000000056A000-memory.dmp

            memory/5536-2-0x00000000021D0000-0x00000000021E3000-memory.dmp

            memory/5536-1-0x0000000000830000-0x0000000000930000-memory.dmp

            memory/5536-6-0x0000000000400000-0x000000000056A000-memory.dmp

            memory/5536-7-0x00000000021D0000-0x00000000021E3000-memory.dmp

            memory/5796-10-0x00000000006E0000-0x00000000006F5000-memory.dmp

            memory/5796-12-0x00000000006E0000-0x00000000006F5000-memory.dmp

            memory/5796-13-0x00000000006E0000-0x00000000006F5000-memory.dmp