Analysis

  • max time kernel
    144s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    30/03/2025, 21:03

General

  • Target

    2025-03-30_b6a366b02ea728c0fe7edef0b63050f9_amadey_rhadamanthys_smoke-loader.exe

  • Size

    12.3MB

  • MD5

    b6a366b02ea728c0fe7edef0b63050f9

  • SHA1

    663907e804b49e19d7812707767b1b738883cd83

  • SHA256

    cd12838db17575f7757eb986e5fd2bda7564ee35032d081cde07b08db2b5821a

  • SHA512

    2d9c328421b7d9f236ccbfe8d81a66a9824d57353aadfde57a501b41b98df840e8025575ffee09e8708b05ca7f23e19084ca8ca5b86abc3c07edb0f173f0d1b6

  • SSDEEP

    6144:q3PxF2dnDX4THRDbw4f4aiKCxRotUPRLI+HGbt4z:q3zub4THRDbnf50xutUP5+iz

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_b6a366b02ea728c0fe7edef0b63050f9_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-30_b6a366b02ea728c0fe7edef0b63050f9_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\mgejynha\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2876
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\jvuitdlf.exe" C:\Windows\SysWOW64\mgejynha\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2972
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create mgejynha binPath= "C:\Windows\SysWOW64\mgejynha\jvuitdlf.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-03-30_b6a366b02ea728c0fe7edef0b63050f9_amadey_rhadamanthys_smoke-loader.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2852
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description mgejynha "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2780
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start mgejynha
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2764
    • 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:2584
  • C:\Windows\SysWOW64\mgejynha\jvuitdlf.exe
    C:\Windows\SysWOW64\mgejynha\jvuitdlf.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-03-30_b6a366b02ea728c0fe7edef0b63050f9_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • 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:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.0MB

    MD5

    b8862f752641e8f220ec0e7ddc907078

    SHA1

    e367fed5dde4221d8bd2358f9c161460d5a7feba

    SHA256

    93c413bd1a22c93544b999ca82ae0c268dacb67c1f3a6136c8e34d57974682a4

    SHA512

    131c5040690938fa8432845ec09d7843036a91319fc8728c72a79aacc24d1952c59446b49649fe6f3ad2ba79656e837acea4444c6c0f2ebe2f9e390404b3e4e2

  • memory/2068-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2068-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2068-1-0x0000000000530000-0x0000000000630000-memory.dmp

    Filesize

    1024KB

  • memory/2068-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2068-9-0x0000000000530000-0x0000000000630000-memory.dmp

    Filesize

    1024KB

  • memory/2068-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2068-7-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB

  • memory/2640-15-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2640-17-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2640-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2640-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2640-19-0x00000000000C0000-0x00000000000D5000-memory.dmp

    Filesize

    84KB

  • memory/2644-18-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB