Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260629-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    05/07/2026, 03:56

General

  • Target
    2026-07-05_1b84442ba25791934c238cef8965c550_amadey_dharma_elex_smoke-loader_stop.exe
  • Size 13.6MB
  • Sample260705-ehpr6ahv2s
  • SHA256 4a93fd7610f84ce86880d4bcaea646628af7bdd86644a3afe5e82c7cd921fa90
  • 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
  • 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\2026-07-05_1b84442ba25791934c238cef8965c550_amadey_dharma_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-05_1b84442ba25791934c238cef8965c550_amadey_dharma_elex_smoke-loader_stop.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:7144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\nehwhegf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5808
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\segwizol.exe" C:\Windows\SysWOW64\nehwhegf\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4404
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create nehwhegf binPath= "C:\Windows\SysWOW64\nehwhegf\segwizol.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-05_1b84442ba25791934c238cef8965c550_amadey_dharma_elex_smoke-loader_stop.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4736
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description nehwhegf "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4448
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start nehwhegf
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1484
    • 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:708
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 7144 -s 1084
      2⤵
      • Program crash
      PID:6760
  • C:\Windows\SysWOW64\nehwhegf\segwizol.exe
    C:\Windows\SysWOW64\nehwhegf\segwizol.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-05_1b84442ba25791934c238cef8965c550_amadey_dharma_elex_smoke-loader_stop.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5336
    • 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:5896
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5336 -s 592
      2⤵
      • Program crash
      PID:2532
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 7144 -ip 7144
    1⤵
      PID:3004
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 5336 -ip 5336
      1⤵
        PID:2096

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            segwizol.exe

            • Path C:\Users\Admin\AppData\Local\Temp\segwizol.exe
            • Size 12.8MB
            • SHA256 4066066a685c6e78df0f3335f1211b37904c33f756ba314af9e91b7700f1ed7c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/5336-9-0x0000000000B90000-0x0000000000C90000-memory.dmp

            memory/5336-13-0x0000000000400000-0x000000000084C000-memory.dmp

            memory/5896-10-0x00000000001E0000-0x00000000001F5000-memory.dmp

            memory/5896-12-0x00000000001E0000-0x00000000001F5000-memory.dmp

            memory/5896-14-0x00000000001E0000-0x00000000001F5000-memory.dmp

            memory/7144-1-0x0000000000BE0000-0x0000000000CE0000-memory.dmp

            memory/7144-2-0x00000000009E0000-0x00000000009F3000-memory.dmp

            memory/7144-7-0x00000000009E0000-0x00000000009F3000-memory.dmp

            memory/7144-6-0x0000000000400000-0x000000000084C000-memory.dmp