Analysis

  • max time kernel
    144s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 09:24

General

  • Target

    2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe

  • Size

    12.7MB

  • MD5

    3984de03446668e2855f8a137422130e

  • SHA1

    86477a07c4adb55a4f1cd6bfcdff69af4784c0d7

  • SHA256

    91c46b2cafc037c13f3cc3f28b09af4abf9db3b1b5793a0d3a89d42b2a44f2ea

  • SHA512

    e87d0d6f7fbeef21eeacb75a57407169f70425f0272efc92dd8ca84167372f537414cb7f594cc363ffa224d57d247d1ee0640d6a43ddb442d4e829852a4a0d13

  • SSDEEP

    12288:TQy+PKMBWNKZ8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8Z8L:TQy+Pcy

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
  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2384
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rbwrcwdn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2324
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eqpdoyga.exe" C:\Windows\SysWOW64\rbwrcwdn\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1400
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create rbwrcwdn binPath= "C:\Windows\SysWOW64\rbwrcwdn\eqpdoyga.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2228
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description rbwrcwdn "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2708
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start rbwrcwdn
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2824
    • 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:2056
  • C:\Windows\SysWOW64\rbwrcwdn\eqpdoyga.exe
    C:\Windows\SysWOW64\rbwrcwdn\eqpdoyga.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_3984de03446668e2855f8a137422130e_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Windows security bypass
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.6MB

    MD5

    feb206d2bd22eb162ca49b517c9d24c7

    SHA1

    83723ad4eea5fdee5aa0869fe70a27ce266cc24b

    SHA256

    6828c2bff42b97f5e1281e4e22bbadb6efe1fa64424d0433428124f3831f2358

    SHA512

    ae3699f4606db6023b94f890924f38f17d29e016e6d2467b3e9fa3be68041465cf1295476324cfcb52580957a31dd9e6d2fc986f09981f8a839417204b4ae946

  • memory/2384-7-0x0000000000400000-0x0000000000862000-memory.dmp

    Filesize

    4.4MB

  • memory/2384-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2384-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2384-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2384-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2384-1-0x0000000000940000-0x0000000000A40000-memory.dmp

    Filesize

    1024KB

  • memory/2716-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2716-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2716-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3056-17-0x0000000000400000-0x0000000000862000-memory.dmp

    Filesize

    4.4MB