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Analysis

  • max time kernel
    147s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2025, 18:31

General

  • Target

    2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe

  • Size

    13.0MB

  • MD5

    7ca394a6c3fb23cf15f764ea44959924

  • SHA1

    489dc2c85200cd32d3a87c7c2d52710a770bf359

  • SHA256

    9574a9f69ddd18f7857877c02cc38a6ac7f5a227f678c7510973921f9c621420

  • SHA512

    bbf01aa88235c59d9a5e15ea063554ea4bf370b215939d88f56bd935506a3c196468512a783b87abe0ebd6caa2048ec27af38413f7a419262b15a36bc2c10951

  • SSDEEP

    24576:FEfmTNIkv/ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZn:Ofot

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\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rcyjlpni\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2164
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\aixbomvv.exe" C:\Windows\SysWOW64\rcyjlpni\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1260
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create rcyjlpni binPath= "C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2856
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description rcyjlpni "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2504
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start rcyjlpni
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2880
    • 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:2808
  • C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe
    C:\Windows\SysWOW64\rcyjlpni\aixbomvv.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-26_7ca394a6c3fb23cf15f764ea44959924_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2936
    • 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:2828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.3MB

    MD5

    882eda7c41c79dcc37dff83d801a82ba

    SHA1

    1a952a98cfd27e82f39fd6a3497eddffb339215e

    SHA256

    79b5a4ef25c83aab277628e91ef3bc260bea6ffbbea52c11ff5e8f308a708705

    SHA512

    e3a3e74d6275de6b0e814f6313a6cac4efff5aa597edf4c16de044c2b69d0a82d9caf34d08c06c338bcca1183d1cc9c706145685452fb32a0ef1e435c51ec6e5

  • memory/2376-8-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2376-4-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2376-2-0x0000000000020000-0x0000000000033000-memory.dmp

    Filesize

    76KB

  • memory/2376-10-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2376-9-0x0000000000520000-0x0000000000620000-memory.dmp

    Filesize

    1024KB

  • memory/2376-1-0x0000000000520000-0x0000000000620000-memory.dmp

    Filesize

    1024KB

  • memory/2376-7-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2828-12-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2828-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2828-15-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2828-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2828-19-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2936-16-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB