Analysis

  • max time kernel
    149s
  • 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
    04/04/2025, 05:23

General

  • Target

    2025-04-04_28430968ab18974ca26532457a33c88f_amadey_rhadamanthys_smoke-loader.exe

  • Size

    14.8MB

  • MD5

    28430968ab18974ca26532457a33c88f

  • SHA1

    d2ec71ffcbae69091781ed85e19344f338dacca8

  • SHA256

    95fa3b032f7a56e6af4c2cf27eac4feff509ac4f4b5dc6974bd7657ff3ea4c0c

  • SHA512

    0b3793b2fbd17fc923831a9645096e8805950a45940b52fd7f49bdf70c8aaf4f7ce63dcba7b991e4c4101cbf906df199728670b95f510ed78b01b29b62249073

  • SSDEEP

    12288:EkcLVukCo8F8JeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMeMq:EkkYkCoDO

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\2025-04-04_28430968ab18974ca26532457a33c88f_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-04_28430968ab18974ca26532457a33c88f_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3504
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\usiowntn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5016
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hjnjtkqd.exe" C:\Windows\SysWOW64\usiowntn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:436
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create usiowntn binPath= "C:\Windows\SysWOW64\usiowntn\hjnjtkqd.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_28430968ab18974ca26532457a33c88f_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4764
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description usiowntn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3976
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start usiowntn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3700
    • 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:2424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3504 -s 664
      2⤵
      • Program crash
      PID:3164
  • C:\Windows\SysWOW64\usiowntn\hjnjtkqd.exe
    C:\Windows\SysWOW64\usiowntn\hjnjtkqd.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_28430968ab18974ca26532457a33c88f_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4416
    • 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:3152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 544
      2⤵
      • Program crash
      PID:5112
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3504 -ip 3504
    1⤵
      PID:652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4416 -ip 4416
      1⤵
        PID:4752

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

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

        Filesize

        12.0MB

        MD5

        ff3bf64dabf54491e80bb89488a33c1b

        SHA1

        a24250e754497d7fca37b313fb2064cf76a14acf

        SHA256

        367a7a2d3998d0db599792d202b71c1082294b99876a60773dc2abd5de6cee5d

        SHA512

        6979fac37ef4d2f7506fe61b8395be0261eb8fef32c08f2595e1458c7e0013ca262fb3030aed82cee42c8cf025d0eae6611e82370b674249ae93def78a9c7e73

      • memory/3152-47-0x0000000001BD0000-0x0000000001BD5000-memory.dmp

        Filesize

        20KB

      • memory/3152-35-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-20-0x0000000002600000-0x000000000280F000-memory.dmp

        Filesize

        2.1MB

      • memory/3152-8-0x0000000000590000-0x00000000005A5000-memory.dmp

        Filesize

        84KB

      • memory/3152-42-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-27-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-28-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-29-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-14-0x0000000000590000-0x00000000005A5000-memory.dmp

        Filesize

        84KB

      • memory/3152-15-0x0000000000590000-0x00000000005A5000-memory.dmp

        Filesize

        84KB

      • memory/3152-17-0x0000000002600000-0x000000000280F000-memory.dmp

        Filesize

        2.1MB

      • memory/3152-24-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-21-0x0000000001BB0000-0x0000000001BB6000-memory.dmp

        Filesize

        24KB

      • memory/3152-44-0x0000000001BD0000-0x0000000001BD5000-memory.dmp

        Filesize

        20KB

      • memory/3152-51-0x0000000007600000-0x0000000007A0B000-memory.dmp

        Filesize

        4.0MB

      • memory/3152-52-0x0000000001BE0000-0x0000000001BE7000-memory.dmp

        Filesize

        28KB

      • memory/3152-30-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-31-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-32-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-41-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-40-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-39-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-38-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-37-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-36-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-48-0x0000000007600000-0x0000000007A0B000-memory.dmp

        Filesize

        4.0MB

      • memory/3152-34-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-33-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3152-43-0x0000000001BC0000-0x0000000001BD0000-memory.dmp

        Filesize

        64KB

      • memory/3504-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3504-2-0x0000000002CE0000-0x0000000002CF3000-memory.dmp

        Filesize

        76KB

      • memory/3504-11-0x0000000000400000-0x0000000002C6C000-memory.dmp

        Filesize

        40.4MB

      • memory/3504-12-0x0000000002CE0000-0x0000000002CF3000-memory.dmp

        Filesize

        76KB

      • memory/3504-13-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/3504-1-0x0000000002DD0000-0x0000000002ED0000-memory.dmp

        Filesize

        1024KB

      • memory/4416-10-0x0000000000400000-0x0000000002C6C000-memory.dmp

        Filesize

        40.4MB