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
    31/07/2026, 06:49

General

  • Target
    2026-07-31_e09903e2475d4ab325ee9e57e74a9747_darkgate_elex_karagany_manuscrypt_maze_rhadamanthys_smoke-loader_stealc_stop.exe
  • Size 11.8MB
  • Sample260731-hlps4sed45
  • SHA256 a5af419980503362c4090f03047b2af38794f1733d1fb8d668334616d891c8da
  • 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
  • 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\2026-07-31_e09903e2475d4ab325ee9e57e74a9747_darkgate_elex_karagany_manuscrypt_maze_rhadamanthys_smoke-loader_stealc_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-31_e09903e2475d4ab325ee9e57e74a9747_darkgate_elex_karagany_manuscrypt_maze_rhadamanthys_smoke-loader_stealc_stop.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cczepzxa\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:3804
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qoyzbxag.exe" C:\Windows\SysWOW64\cczepzxa\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:1140
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create cczepzxa binPath= "C:\Windows\SysWOW64\cczepzxa\qoyzbxag.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-07-31_e09903e2475d4ab325ee9e57e74a9747_darkgate_elex_karagany_manuscrypt_maze_rhadamanthys_smoke-loader_stealc_stop.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:936
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description cczepzxa "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4864
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start cczepzxa
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5928
    • 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:5968
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 1088
      2⤵
      • Program crash
      PID:5592
  • C:\Windows\SysWOW64\cczepzxa\qoyzbxag.exe
    C:\Windows\SysWOW64\cczepzxa\qoyzbxag.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-07-31_e09903e2475d4ab325ee9e57e74a9747_darkgate_elex_karagany_manuscrypt_maze_rhadamanthys_smoke-loader_stealc_stop.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4520
    • 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:2764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4520 -s 588
      2⤵
      • Program crash
      PID:256
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4520 -ip 4520
    1⤵
      PID:6084
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2356 -ip 2356
      1⤵
        PID:712
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k GPSvcGroup
        1⤵
          PID:1296

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              qoyzbxag.exe

              • Path C:\Users\Admin\AppData\Local\Temp\qoyzbxag.exe
              • Size 10.8MB
              • SHA256 b72ae303abe45ac5abef55b4ad22000892f170a40cf81eaf75e23ff856bf0cf0
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/2356-1-0x0000000004280000-0x0000000004380000-memory.dmp

              memory/2356-2-0x0000000005C60000-0x0000000005C73000-memory.dmp

              memory/2356-11-0x0000000005C60000-0x0000000005C73000-memory.dmp

              memory/2356-10-0x0000000000400000-0x0000000004032000-memory.dmp

              memory/2764-7-0x0000000000920000-0x0000000000935000-memory.dmp

              memory/2764-12-0x0000000000920000-0x0000000000935000-memory.dmp

              memory/2764-13-0x0000000000920000-0x0000000000935000-memory.dmp

              memory/4520-9-0x0000000000400000-0x0000000004032000-memory.dmp