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Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01/02/2025, 11:47

General

  • Target

    2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe

  • Size

    14.2MB

  • MD5

    30b2dc58a6a04741bccfb42440710e97

  • SHA1

    8d07aecac08c1bdcdc979f325167331c23cd46ec

  • SHA256

    b39595c06e777b510c85f16d8353c5b5f5d2bcd16e2f17c3dfcd80718e51a2fb

  • SHA512

    58c9f89ac16cedc7ba0c4a6b016f3b7e954ca750cb1c462136b42374308ad8a6bbabdd6877cdc8666f1960877c947914788a864bc09a6384077792d06ddf5374

  • SSDEEP

    6144:ALQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQI:VTYe+D2jFu+iZoUFhAz

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\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wcndilvo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3020
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\pnwxgcrn.exe" C:\Windows\SysWOW64\wcndilvo\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2752
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create wcndilvo binPath= "C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2812
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description wcndilvo "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2960
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start wcndilvo
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2788
    • 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:2640
  • C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe
    C:\Windows\SysWOW64\wcndilvo\pnwxgcrn.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-01_30b2dc58a6a04741bccfb42440710e97_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2624
    • 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:2888

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    14.6MB

    MD5

    8d915029146b1682ab84f47c36aae3ef

    SHA1

    e75a49dcad7cd77787a1adc31cab5a893d6bbe8c

    SHA256

    578a671870a77471500c4a43f25855975c1105e8503868f229bf524f4cf23777

    SHA512

    4f92b6edd7d4b87cf8ea4753be1b36fb8027432b4d05c3d210068e5f7dcd37f6b3242ab4149037778e53cfa1c9af0198f3a4e8eda45927830c7e7fe3e5a0f34f

  • memory/2624-15-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2760-7-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2760-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2760-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2760-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2760-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2760-1-0x0000000000640000-0x0000000000740000-memory.dmp

    Filesize

    1024KB

  • memory/2888-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2888-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2888-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2888-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2888-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB