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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/01/2025, 19:02

General

  • Target

    2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe

  • Size

    10.7MB

  • MD5

    c96251b811fd4393eb727c2d509bda7c

  • SHA1

    6171664e5c463141358617088db85e6e187cc688

  • SHA256

    93e799ff91df350fa4a65d1ada0f03f90f6b2a5a80415a545e76c756ff6f6add

  • SHA512

    0ddba7b60c498a59c3f594f85f8dd594b8006d9cd50923da38bfa038483c09482859ca39a1db62cd097373ba4f799dbefcb7554cec5d7fcac3ce8d225214bb43

  • SSDEEP

    196608:yyXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXn:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3

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
  • Creates new service(s) 2 TTPs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\azfujvov\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1888
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vxqbiqeu.exe" C:\Windows\SysWOW64\azfujvov\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:816
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create azfujvov binPath= "C:\Windows\SysWOW64\azfujvov\vxqbiqeu.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:3592
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description azfujvov "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2996
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start azfujvov
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2044
    • 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:3820
  • C:\Windows\SysWOW64\azfujvov\vxqbiqeu.exe
    C:\Windows\SysWOW64\azfujvov\vxqbiqeu.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-01-15_c96251b811fd4393eb727c2d509bda7c_mafia.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    11.8MB

    MD5

    736ee42b42c489622b36865f05936b94

    SHA1

    722a9bf71a964ef4e80acd84f151910a017c1717

    SHA256

    c7876fb784afd4ad53b23e08e2c16b826b5de3c0ade6454ee3a21c08570b0d58

    SHA512

    65e4a9f073b49a6d55bd873998d3f4a36d5756093081ac4f60da0681d4ef75917b6dbc62cc67f319fa1271a3f6766d3b9f4c25714a667d8b4abcac8a349157b4

  • memory/1912-7-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/1912-2-0x0000000000460000-0x0000000000473000-memory.dmp

    Filesize

    76KB

  • memory/1912-9-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/1912-8-0x0000000000460000-0x0000000000473000-memory.dmp

    Filesize

    76KB

  • memory/1912-1-0x0000000000490000-0x0000000000590000-memory.dmp

    Filesize

    1024KB

  • memory/1912-3-0x0000000000400000-0x0000000000415000-memory.dmp

    Filesize

    84KB

  • memory/3048-16-0x0000000000620000-0x0000000000635000-memory.dmp

    Filesize

    84KB

  • memory/3048-21-0x0000000000620000-0x0000000000635000-memory.dmp

    Filesize

    84KB

  • memory/3048-13-0x0000000000620000-0x0000000000635000-memory.dmp

    Filesize

    84KB

  • memory/3048-19-0x0000000000620000-0x0000000000635000-memory.dmp

    Filesize

    84KB

  • memory/3048-20-0x0000000000620000-0x0000000000635000-memory.dmp

    Filesize

    84KB

  • memory/3584-12-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3584-18-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3584-11-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB