Analysis

  • max time kernel
    147s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2025, 09:18

General

  • Target

    2025-03-30_f454f7c0a605f86be6e8f64209e524f1_amadey_rhadamanthys_smoke-loader.exe

  • Size

    12.0MB

  • MD5

    f454f7c0a605f86be6e8f64209e524f1

  • SHA1

    8132eae9d596f0b129e49aba25c410f7eae9ddf9

  • SHA256

    429b30741181c0d2881d7c7f59f2c305e5990a88a8717187108947a5b6fb3b31

  • SHA512

    659372e44e00dd80eda1795a04e773268290bc7f18576d53771e387c2938ea111d12d75f6c45332bf8a3bb3170eb984c1189c6b062eb527b74632051a8dd3796

  • SSDEEP

    3072:klgdKdi5eju5BBJeLjP9SCn2pm0NiHbNsNmBnA/4c:klgdB5eju5QSK2pYRrA/4c

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\2025-03-30_f454f7c0a605f86be6e8f64209e524f1_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_f454f7c0a605f86be6e8f64209e524f1_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hhsflonb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4408
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\erdatglv.exe" C:\Windows\SysWOW64\hhsflonb\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4888
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create hhsflonb binPath= "C:\Windows\SysWOW64\hhsflonb\erdatglv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_f454f7c0a605f86be6e8f64209e524f1_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3904
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description hhsflonb "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4852
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start hhsflonb
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:832
    • 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:1868
  • C:\Windows\SysWOW64\hhsflonb\erdatglv.exe
    C:\Windows\SysWOW64\hhsflonb\erdatglv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_f454f7c0a605f86be6e8f64209e524f1_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3104
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:5348

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.7MB

    MD5

    fef2bae2c5e5ed1d79d106c15e675e04

    SHA1

    79ff8524866104502d4aac0b4abdec0487f01ba8

    SHA256

    673435a3a2c315b3f87bd311362d09d9bc88c7d041c28a3c83ec7e0845f1886f

    SHA512

    ef2b6535c0f5d386ef4bb26d06f359abdf8b6e49e79e04a141c4370409533b6b3bf42d9451367c67da9a6d07787a73a4c5a8d5827e5965c4e5fe599bcdd0b032

  • memory/1992-2-0x0000000004AF0000-0x0000000004B03000-memory.dmp

    Filesize

    76KB

  • memory/1992-1-0x0000000004B90000-0x0000000004C90000-memory.dmp

    Filesize

    1024KB

  • memory/1992-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1992-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1992-8-0x0000000004AF0000-0x0000000004B03000-memory.dmp

    Filesize

    76KB

  • memory/1992-7-0x0000000000400000-0x0000000004A98000-memory.dmp

    Filesize

    70.6MB

  • memory/3104-12-0x0000000000400000-0x0000000004A98000-memory.dmp

    Filesize

    70.6MB

  • memory/5348-11-0x0000000000B00000-0x0000000000B15000-memory.dmp

    Filesize

    84KB

  • memory/5348-14-0x0000000000B00000-0x0000000000B15000-memory.dmp

    Filesize

    84KB

  • memory/5348-15-0x0000000000B00000-0x0000000000B15000-memory.dmp

    Filesize

    84KB