Analysis

  • max time kernel
    144s
  • max time network
    139s
  • 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, 06:02

General

  • Target

    2025-04-04_e08bc2293bdeba0df986355ce62864ee_amadey_rhadamanthys_smoke-loader.exe

  • Size

    11.5MB

  • MD5

    e08bc2293bdeba0df986355ce62864ee

  • SHA1

    e53cb1919f970f511eb6c1a4b6b6b2a0f2c4040f

  • SHA256

    ada07f035ad940ba06214f02ab3e66513443530d6b1dce33ddc20829bd028408

  • SHA512

    5df0154cf1c916a9773d8bc2fdb2e7ce400c966022561e7df4861a4aadf8e77dc308b381ed8fed96f65e5a24e5371cbcc4b504d98573ac393c0180a8ef80093a

  • SSDEEP

    3072:BUYC9q24pkJimkGgbdGz9uIYogXFYfKkqCZB8h0e2R10JKuC5PsFRRRRRRRRRRRn:BUYgq6krsz9Ti1h0eSuJ4s

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

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
  • 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.

  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-04-04_e08bc2293bdeba0df986355ce62864ee_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-04-04_e08bc2293bdeba0df986355ce62864ee_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ppewduff\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1072
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\rnffcrqe.exe" C:\Windows\SysWOW64\ppewduff\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4540
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ppewduff binPath= "C:\Windows\SysWOW64\ppewduff\rnffcrqe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-04-04_e08bc2293bdeba0df986355ce62864ee_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4744
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ppewduff "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:5500
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ppewduff
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2408
    • 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:4936
  • C:\Windows\SysWOW64\ppewduff\rnffcrqe.exe
    C:\Windows\SysWOW64\ppewduff\rnffcrqe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-04-04_e08bc2293bdeba0df986355ce62864ee_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:4900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.7MB

    MD5

    09ec346d59e1b3120d6875cdb6543cfa

    SHA1

    5790e00f851403a9ae69dada322ec3421e444b1d

    SHA256

    8313cc9270ba3fb1740fe6e47363f2acedaafe3a3f569bee32ba6928961cf890

    SHA512

    68494a574ead593d1d43d48f89cf8e1ef7b841bb8465b65e6d1d467ee9672913d7ebe6ee4b4bd90fc785f70b0cd29049c3b78aea68bf01f5a349dc8ecf8d93ee

  • memory/1664-1-0x0000000004010000-0x0000000004110000-memory.dmp

    Filesize

    1024KB

  • memory/1664-2-0x00000000059B0000-0x00000000059C3000-memory.dmp

    Filesize

    76KB

  • memory/1664-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1664-8-0x00000000059B0000-0x00000000059C3000-memory.dmp

    Filesize

    76KB

  • memory/1664-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1664-7-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

  • memory/4644-14-0x0000000000400000-0x0000000003DA3000-memory.dmp

    Filesize

    57.6MB

  • memory/4900-13-0x0000000000F40000-0x0000000000F55000-memory.dmp

    Filesize

    84KB

  • memory/4900-11-0x0000000000F40000-0x0000000000F55000-memory.dmp

    Filesize

    84KB

  • memory/4900-15-0x0000000000F40000-0x0000000000F55000-memory.dmp

    Filesize

    84KB