Analysis

  • max time kernel
    143s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-02-2025 08:40

General

  • Target

    2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe

  • Size

    10.3MB

  • MD5

    9f3b270d0a461fe86d593c868794751b

  • SHA1

    f36ef7f1d36c82df8af9a45f9ce4bb49dc04073e

  • SHA256

    9debc8fd1f6a5f6578dc309f1d21f77a907b14d0aa763e56448b1fb3070f9ffe

  • SHA512

    3f8a1204227b28a95cdf401c1258719056d458ac5d756eb1dd32e081fdf084fabaff0b1e0cd58a48f267fa18ecd1abd94e5db11bb7348706c591f8b28328299c

  • SSDEEP

    6144:VLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQS:mTYe+D2jFu+iZoUFhAzF

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\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ixiczgbe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1940
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\kxjgzmrb.exe" C:\Windows\SysWOW64\ixiczgbe\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2140
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ixiczgbe binPath= "C:\Windows\SysWOW64\ixiczgbe\kxjgzmrb.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2692
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ixiczgbe "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2748
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ixiczgbe
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2816
    • 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:2756
  • C:\Windows\SysWOW64\ixiczgbe\kxjgzmrb.exe
    C:\Windows\SysWOW64\ixiczgbe\kxjgzmrb.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_9f3b270d0a461fe86d593c868794751b_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2812
    • 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:2768

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.0MB

    MD5

    55784c1379f64e5b41fe18c7dc390aae

    SHA1

    6451f6f946f084fc65e698ecbc6029b55dfe7f40

    SHA256

    59abb5398412d7d8c300e35dab59cf72accefb6b1102c7155a82e8ccb8c0abd4

    SHA512

    1bbbb3e21ae5df4273a79cc13378bc39e629d937cc23bd156ea4cdf6560d835fbf616bbc173d947b4438dbfce8eec6970d562185567300684030166b5d25e028

  • memory/2356-7-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2356-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2356-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2356-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2356-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2356-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

    Filesize

    1024KB

  • memory/2768-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2768-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2768-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2812-17-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB