Analysis

  • max time kernel
    157s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-02-2025 21:28

General

  • Target

    2025-02-07_c70185c3b9221cd71d44049748bbbf5c_mafia.exe

  • Size

    12.5MB

  • MD5

    c70185c3b9221cd71d44049748bbbf5c

  • SHA1

    8a8e719e97dbc9caace55dd2b01d15cde517d4f7

  • SHA256

    db63914da2e86c9436713c9aafeaf23a6d927fb273646aca7125da7258e539b5

  • SHA512

    b95e8e3e8a3c34ffe79ae56da81a22e5f4f1fc0913786480c849146383aa3b67195fa7a7d24dbfae771fa4efb056ee3033b4902a5437224cf8bd83703752bf5d

  • SSDEEP

    6144:zLQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQw:ITYe+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\2025-02-07_c70185c3b9221cd71d44049748bbbf5c_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-07_c70185c3b9221cd71d44049748bbbf5c_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xzcqlcdt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2672
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\fhalsaoe.exe" C:\Windows\SysWOW64\xzcqlcdt\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2956
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create xzcqlcdt binPath= "C:\Windows\SysWOW64\xzcqlcdt\fhalsaoe.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-07_c70185c3b9221cd71d44049748bbbf5c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2832
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description xzcqlcdt "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 xzcqlcdt
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2708
    • 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:2476
  • C:\Windows\SysWOW64\xzcqlcdt\fhalsaoe.exe
    C:\Windows\SysWOW64\xzcqlcdt\fhalsaoe.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-07_c70185c3b9221cd71d44049748bbbf5c_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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:2424

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.7MB

    MD5

    823626a311cd86c5899c0c21fdd6d913

    SHA1

    f9236da8140ab366c3c731a08c142cdee54b2e83

    SHA256

    12143214d24460c00d02dd31d762d14d26855ddb0e6f00133cf0aaa9c27d2888

    SHA512

    fba66090d45637ca7564a8904354c16285ddf3c9b7471f6dd5cb30f98d323ab1f527c3e265d94772f07dee8a053be05c1933243d959cc94da7b6d552ba86e1d7

  • memory/396-16-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2424-17-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2424-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2424-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2424-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2424-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

    Filesize

    84KB

  • memory/2876-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2876-6-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2876-8-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2876-7-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2876-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2876-1-0x0000000000930000-0x0000000000A30000-memory.dmp

    Filesize

    1024KB