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Analysis

  • max time kernel
    144s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13/01/2025, 19:26

General

  • Target

    2025-01-13_8f99b8d69deb167959d1393683ef98cf_mafia.exe

  • Size

    12.7MB

  • MD5

    8f99b8d69deb167959d1393683ef98cf

  • SHA1

    6de38f45f39789d19b16585de4253305bd7fe37f

  • SHA256

    ed3d51d8d09ff9f79b03d40fb912639f24094280abbf068d861780b5a440545e

  • SHA512

    dbbe11ee848813339c5f3652d934f33348277e43ad5f5e0bcfb0cf9091a163999b40f140a1b49629ba936cf979f4ed42299931eaf440ac780e4f0ade70f05e1b

  • SSDEEP

    24576:UpomTTN9ttttttttttttttttttttttttttttttttttttttttttttttttttttttt3:goo

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\2025-01-13_8f99b8d69deb167959d1393683ef98cf_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-13_8f99b8d69deb167959d1393683ef98cf_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\adqwrvdt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2284
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\erdatglv.exe" C:\Windows\SysWOW64\adqwrvdt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2160
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create adqwrvdt binPath= "C:\Windows\SysWOW64\adqwrvdt\erdatglv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-13_8f99b8d69deb167959d1393683ef98cf_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2420
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description adqwrvdt "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2700
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start adqwrvdt
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3064
    • 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:2884
  • C:\Windows\SysWOW64\adqwrvdt\erdatglv.exe
    C:\Windows\SysWOW64\adqwrvdt\erdatglv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-13_8f99b8d69deb167959d1393683ef98cf_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2828
    • 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:2732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.9MB

    MD5

    e59846844daabc33f0a6460919aa5190

    SHA1

    89e607428df9a1568b4801078409392dced14e97

    SHA256

    73e81272bf78d1793e74b51098b5f9fd8dfaac7079ede264aaa3533c5dd1415f

    SHA512

    42b5d7a8e235ce3cadb578b1e2049d3708fca1167a471f7cc2ac928ffaea4460fb3f51399f18d35d05ac0898d48cc6033db9d280ecfba1e869bfad7f11f083fb

  • memory/2532-7-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2532-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2532-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2532-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2532-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2532-1-0x00000000004F0000-0x00000000005F0000-memory.dmp

    Filesize

    1024KB

  • memory/2732-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2732-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2732-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2732-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2732-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2828-17-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB