Analysis

  • max time kernel
    148s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    31-01-2025 20:08

General

  • Target

    2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe

  • Size

    14.7MB

  • MD5

    aaf8e49d400422b269c8ae719a1fa882

  • SHA1

    f2bd9b6119558167165030f0b4f5c3fb632e456f

  • SHA256

    dc1457831a3170e63c3bc791a963c11f1cf670862c7f9c65d4813b97c54ccf66

  • SHA512

    267f2de50c70bee415f67c706227b5a66d2785d2e745a013e54aa7c6ea88296fa0c53455bca168d4e05fa11690cbd629cd9bde751e8f2719c681edfc3b9a7bc2

  • SSDEEP

    3072:ULBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:ROMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kabttgqd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3036
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\mmnytusa.exe" C:\Windows\SysWOW64\kabttgqd\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3024
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create kabttgqd binPath= "C:\Windows\SysWOW64\kabttgqd\mmnytusa.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2896
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description kabttgqd "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1744
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start kabttgqd
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2808
    • 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:2812
  • C:\Windows\SysWOW64\kabttgqd\mmnytusa.exe
    C:\Windows\SysWOW64\kabttgqd\mmnytusa.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-31_aaf8e49d400422b269c8ae719a1fa882_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2788
    • 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:2364

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    13.2MB

    MD5

    bbfdee97830de501cc9f6c5ec8702922

    SHA1

    f5749ba8a9c0b2805dff1b544ecabca8bd2277bd

    SHA256

    420ac3d204e59b536044ac30e765b67dd76c32707e7663b1a98f9e23dac84e59

    SHA512

    e4ffb40fb3c8fd76c29944357e3b3019ea908275e8e2878f46e47b424766bb9d506d94bc9f11d7a915a7805a4961e156471b9f2f71cf5a4fa61afb2f9400b300

  • memory/2144-6-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2144-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2144-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2144-8-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/2144-7-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/2144-1-0x0000000000890000-0x0000000000990000-memory.dmp

    Filesize

    1024KB

  • memory/2364-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2364-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2364-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2788-17-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB