Overview

overview

10

Static

static

3

2026-08-24...ee.exe

windows10-2004-x64

10

2026-08-24...ee.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    25/08/2026, 13:13

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General

  • Target
    2026-08-24_54147cb42ce7aad7016ea5086c847e40_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
  • Size 13.5MB
  • Sample260825-qgkycssfnf
  • SHA256 4bf9868a5fff25e475db72c59e002696e3db4df092b1b86d9bb6c42ccfd240e6
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryexecutiontofseepersistenceprivilege_escalationtrojan

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.

    trojantofsee
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    defense_evasion
  • 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.

    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
    persistenceexecution
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Stops running service(s) 4 TTPs
    defense_evasionexecution
  • 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.

    persistenceprivilege_escalation
  • 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.

    execution
  • 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.

    discovery
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-24_54147cb42ce7aad7016ea5086c847e40_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-24_54147cb42ce7aad7016ea5086c847e40_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zjxmjwnr\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4816
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mpmfwysi.exe" C:\Windows\SysWOW64\zjxmjwnr\
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      PID:4364
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create zjxmjwnr binPath= "C:\Windows\SysWOW64\zjxmjwnr\mpmfwysi.exe /d\"C:\Users\Admin\AppData\Local\Temp\2026-08-24_54147cb42ce7aad7016ea5086c847e40_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3268
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description zjxmjwnr "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1852
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start zjxmjwnr
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2588
    • 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:1716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2652 -s 1040
      2⤵
      • Program crash
      PID:1136
  • C:\Windows\SysWOW64\zjxmjwnr\mpmfwysi.exe
    C:\Windows\SysWOW64\zjxmjwnr\mpmfwysi.exe /d"C:\Users\Admin\AppData\Local\Temp\2026-08-24_54147cb42ce7aad7016ea5086c847e40_amadey_elex_redline-stealer_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3984
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 536
      2⤵
      • Program crash
      PID:648
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2652 -ip 2652
    1⤵
      PID:3436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2252 -ip 2252
      1⤵
        PID:1528

      Network

            MITRE ATT&CK Enterprise v16

            Reconnaissance

            Resource Development

            Initial Access

            Execution

            Command and Scripting Interpreter

            1
            T1059

            Windows Command Shell

            1
            T1059.003

            System Services

            2
            T1569

            Service Execution

            2
            T1569.002

            Persistence

            Boot or Logon Autostart Execution

            1
            T1547

            Registry Run Keys / Startup Folder

            1
            T1547.001

            Create or Modify System Process

            4
            T1543

            Windows Service

            4
            T1543.003

            Event Triggered Execution

            1
            T1546

            Netsh Helper DLL

            1
            T1546.007

            Privilege Escalation

            Boot or Logon Autostart Execution

            1
            T1547

            Registry Run Keys / Startup Folder

            1
            T1547.001

            Create or Modify System Process

            4
            T1543

            Windows Service

            4
            T1543.003

            Event Triggered Execution

            1
            T1546

            Netsh Helper DLL

            1
            T1546.007

            Defense Evasion

            Impair Defenses

            2
            T1562

            Disable or Modify System Firewall

            1
            T1562.004

            Modify Registry

            1
            T1112

            Credential Access

            Discovery

            Query Registry

            1
            T1012

            System Information Discovery

            2
            T1082

            System Location Discovery

            1
            T1614

            System Language Discovery

            1
            T1614.001

            Lateral Movement

            Collection

            Command and Control

            Exfiltration

            Impact

            Service Stop

            1
            T1489

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            Downloads

            mpmfwysi.exe
            • Path C:\Users\Admin\AppData\Local\Temp\mpmfwysi.exe
            • Size 11.4MB
            • SHA256 6dc0adfc58c360d804af2afc871bbd1fe99e2950cbcbf637769b4dabc9a68bfb
            • MD5 SHA1 SHA512 SSDEEP TLSH
            Submit Download

            memory/2252-13-0x0000000000400000-0x0000000002C25000-memory.dmp
            Download

            memory/2652-2-0x0000000002E80000-0x0000000002E93000-memory.dmp
            Download

            memory/2652-1-0x0000000002F60000-0x0000000003060000-memory.dmp
            Download

            memory/2652-8-0x0000000002E80000-0x0000000002E93000-memory.dmp
            Download

            memory/2652-7-0x0000000000400000-0x0000000002C25000-memory.dmp
            Download

            memory/3984-9-0x0000000000F80000-0x0000000000F95000-memory.dmp
            Download

            memory/3984-11-0x0000000000F80000-0x0000000000F95000-memory.dmp
            Download

            memory/3984-12-0x0000000000F80000-0x0000000000F95000-memory.dmp
            Download