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Analysis

  • max time kernel
    146s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27/01/2025, 18:46

General

  • Target

    2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe

  • Size

    10.7MB

  • MD5

    3b1c42b9fc861bf99b8982db9801462d

  • SHA1

    c5aad6d3a1a04f4dfffa0bf8ab5c64d5161d3797

  • SHA256

    e8407556a5ed4ef7b4dc4a2454b1ba82e9016d96b71e598b8c70981c4860ca76

  • SHA512

    4f55812888670754a2cff405cc9a9d9231a55f5db1825502a5e71066763d08f25ed93aa5dc5467bf8edc9eea41c0f65578eb0793b139d0db58702941bd3724f0

  • SSDEEP

    3072:nLBgXOXcdW8tar7vGdq8c7YMl2b8anmMXnb58XuDP9het3Zv1oSW1za2E+w5C2/Y:+OMdRQr7OB0ypmMXnl8XEPM3noSWOC

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\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\dlqwbkjy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2524
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\baoqebcu.exe" C:\Windows\SysWOW64\dlqwbkjy\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1624
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create dlqwbkjy binPath= "C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2796
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description dlqwbkjy "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2872
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start dlqwbkjy
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2760
    • 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:2840
  • C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe
    C:\Windows\SysWOW64\dlqwbkjy\baoqebcu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-27_3b1c42b9fc861bf99b8982db9801462d_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2732
    • 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:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10.0MB

    MD5

    6281f5a39c1d8c6b9ea09052b489b25c

    SHA1

    c0fa6f5c96b7af64797f67903bf73330450d5437

    SHA256

    ce6f198ade18423e7a2858cb487c955f02cb62459225e45310042a43ff65eee7

    SHA512

    49271ae5240a494d16a896537b6f63bcbae8c9ad26906da9ff459f17f8c2a86b303cbedf48922eca47227d97d34e8ae4502a033cc2631a4695bde443d5be1924

  • memory/2732-17-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2944-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2944-16-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2944-14-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2944-11-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/2944-18-0x0000000000080000-0x0000000000095000-memory.dmp

    Filesize

    84KB

  • memory/3056-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3056-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3056-8-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB

  • memory/3056-7-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/3056-1-0x00000000005D0000-0x00000000006D0000-memory.dmp

    Filesize

    1024KB

  • memory/3056-2-0x0000000000220000-0x0000000000233000-memory.dmp

    Filesize

    76KB