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Analysis

  • max time kernel
    144s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    02/02/2025, 01:07

General

  • Target

    2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe

  • Size

    14.0MB

  • MD5

    a7c716f5d936c9276944313d870ed67e

  • SHA1

    896af91856ec814cb4be69d5e81ad86d91626a62

  • SHA256

    cd2ed79a77da92a3dffddabf2825cb5bc3f373a0d58da2117b42163bb7e154bb

  • SHA512

    c1371b705a83346eb4d1e8dbac89e9b42748b4d4233f9a8b5b001ab24ab874d02ce5977d29515912eb82e293629c98654cbafb08ae411808375442a77330d593

  • SSDEEP

    24576:+6WdLQkyQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQo:vWdLQk

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\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\tcacnlkg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1420
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\oaznyiqk.exe" C:\Windows\SysWOW64\tcacnlkg\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2628
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create tcacnlkg binPath= "C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1964
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description tcacnlkg "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2472
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start tcacnlkg
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2800
    • 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:2932
  • C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe
    C:\Windows\SysWOW64\tcacnlkg\oaznyiqk.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_a7c716f5d936c9276944313d870ed67e_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2956
    • 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:2924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.4MB

    MD5

    44861c61f97e61471125ae6984b2c22d

    SHA1

    59bf6d02275addfd9233dd127666f073e254061e

    SHA256

    31070e16ad5f0655c3737d5c99aeb5b45834199bf05966b53a42c8438424acf4

    SHA512

    a1a96a4406d2322749c4d9207545f587f39dead6376d4e0a8af38ad5c7b80c6b65fee5301f37100b77fcd45e51c31a8b6286cbef4af82c0e0ef848c7b64054a7

  • memory/1720-7-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB

  • memory/1720-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1720-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

    Filesize

    1024KB

  • memory/1720-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1720-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/1720-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2924-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2924-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2924-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2924-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2924-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2956-17-0x0000000000400000-0x000000000044F000-memory.dmp

    Filesize

    316KB