Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2025, 09:20

General

  • Target

    2025-03-30_45a0b1223df4e45c3b25f7f55f2fc20f_amadey_rhadamanthys_smoke-loader.exe

  • Size

    11.9MB

  • MD5

    45a0b1223df4e45c3b25f7f55f2fc20f

  • SHA1

    8dba221e145c95242b33964f42c14abe8e0e79c0

  • SHA256

    aaf99fd53b0e20e1495fa5f8e1fb0bd060a8324d4c6156e4c0b22d8393495bd6

  • SHA512

    0c7abe8ddf8050ebb1c117c58abf7bbfc73678b4126536f9fb9640a550f7cf6f54f74cb76d669033056c29e6daef041ae19cb2b666b901d2faaeb91898d07609

  • SSDEEP

    12288:NkcLVukCo8F8JeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMO:NkkYkCoDS

Malware Config

Extracted

Family

tofsee

C2

svartalfheim.top

jotunheim.name

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • Tofsee family
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • 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 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-30_45a0b1223df4e45c3b25f7f55f2fc20f_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_45a0b1223df4e45c3b25f7f55f2fc20f_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ocewbjln\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3916
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gogqfqyt.exe" C:\Windows\SysWOW64\ocewbjln\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3936
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ocewbjln binPath= "C:\Windows\SysWOW64\ocewbjln\gogqfqyt.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_45a0b1223df4e45c3b25f7f55f2fc20f_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4976
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ocewbjln "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2516
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ocewbjln
      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:772
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 676
      2⤵
      • Program crash
      PID:2548
  • C:\Windows\SysWOW64\ocewbjln\gogqfqyt.exe
    C:\Windows\SysWOW64\ocewbjln\gogqfqyt.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_45a0b1223df4e45c3b25f7f55f2fc20f_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:372
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • 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:2924
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 372 -s 520
      2⤵
      • Program crash
      PID:2288
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2160 -ip 2160
    1⤵
      PID:1532
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 372 -ip 372
      1⤵
        PID:3416

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\gogqfqyt.exe

        Filesize

        12.2MB

        MD5

        2705f009b0098ae0383cb8add821bd3e

        SHA1

        910b6ac5f8be1f6ca68af3cbbe20c60f3e6d33b5

        SHA256

        579791018d342dcdd7b4107f5c83a762e1f224e0e4cb20805a7fddee69eb6643

        SHA512

        1bfc7cef1ad35fa3d6095a95ce6bbd94b0caa443e79a6b7cdf05bb25cb45e8a0591af4390d2702bef2c77251c175a0269c9ab4957ca106f7db585dd416e1e420

      • memory/372-10-0x0000000000400000-0x0000000002C6C000-memory.dmp

        Filesize

        40.4MB

      • memory/2160-11-0x0000000000400000-0x0000000002C6C000-memory.dmp

        Filesize

        40.4MB

      • memory/2160-2-0x0000000002E00000-0x0000000002E13000-memory.dmp

        Filesize

        76KB

      • memory/2160-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2160-1-0x0000000002E90000-0x0000000002F90000-memory.dmp

        Filesize

        1024KB

      • memory/2160-12-0x0000000002E00000-0x0000000002E13000-memory.dmp

        Filesize

        76KB

      • memory/2160-13-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/2924-48-0x0000000007100000-0x000000000750B000-memory.dmp

        Filesize

        4.0MB

      • memory/2924-41-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-15-0x00000000001D0000-0x00000000001E5000-memory.dmp

        Filesize

        84KB

      • memory/2924-17-0x0000000002200000-0x000000000240F000-memory.dmp

        Filesize

        2.1MB

      • memory/2924-24-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-21-0x00000000005F0000-0x00000000005F6000-memory.dmp

        Filesize

        24KB

      • memory/2924-20-0x0000000002200000-0x000000000240F000-memory.dmp

        Filesize

        2.1MB

      • memory/2924-52-0x00000000017F0000-0x00000000017F7000-memory.dmp

        Filesize

        28KB

      • memory/2924-31-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-51-0x0000000007100000-0x000000000750B000-memory.dmp

        Filesize

        4.0MB

      • memory/2924-8-0x00000000001D0000-0x00000000001E5000-memory.dmp

        Filesize

        84KB

      • memory/2924-47-0x0000000000BB0000-0x0000000000BB5000-memory.dmp

        Filesize

        20KB

      • memory/2924-44-0x0000000000BB0000-0x0000000000BB5000-memory.dmp

        Filesize

        20KB

      • memory/2924-43-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-42-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-14-0x00000000001D0000-0x00000000001E5000-memory.dmp

        Filesize

        84KB

      • memory/2924-40-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-39-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-38-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-37-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-36-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-35-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-34-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-33-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-32-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-30-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-29-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-28-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB

      • memory/2924-27-0x0000000000BA0000-0x0000000000BB0000-memory.dmp

        Filesize

        64KB