Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/09/2024, 00:00

General

  • Target

    3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3.exe

  • Size

    422KB

  • MD5

    3311fa3eaf45f447e171af13c75bf9d5

  • SHA1

    2f507fceafd174b5197fe0342ae3af0739b4ece1

  • SHA256

    3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3

  • SHA512

    bb8ef2f345079991a84025e38c16a87446edd45af254b2074a186e203a112335ead443bfc56b405f272c0274ab81ea6d898bbcdc51e4934ee0e3ff440bc19fff

  • SSDEEP

    6144:5Uruff9PhcIfdYFthIYNkCRFdtSckPLDfcbzjpk6vqoF:5kuff9Ph51ch/VTdt5kPLTcbzjpFF

Malware Config

Extracted

Family

tofsee

C2

vanaheim.cn

jotunheim.name

Signatures

  • Tofsee

    Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

  • 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
  • Drops file in System32 directory 2 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.

  • Program crash 2 IoCs
  • 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.

  • Modifies data under HKEY_USERS 7 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3.exe
    "C:\Users\Admin\AppData\Local\Temp\3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4468
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ibfdtvjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1452
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vlliugwu.exe" C:\Windows\SysWOW64\ibfdtvjc\
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4828
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" create ibfdtvjc binPath= "C:\Windows\SysWOW64\ibfdtvjc\vlliugwu.exe /d\"C:\Users\Admin\AppData\Local\Temp\3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3.exe\"" type= own start= auto DisplayName= "wifi support"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:4748
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" description ibfdtvjc "wifi internet conection"
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:1624
    • C:\Windows\SysWOW64\sc.exe
      "C:\Windows\System32\sc.exe" start ibfdtvjc
      2⤵
      • Launches sc.exe
      • System Location Discovery: System Language Discovery
      PID:2156
    • 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:4012
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4468 -s 1252
      2⤵
      • Program crash
      PID:3012
  • C:\Windows\SysWOW64\ibfdtvjc\vlliugwu.exe
    C:\Windows\SysWOW64\ibfdtvjc\vlliugwu.exe /d"C:\Users\Admin\AppData\Local\Temp\3c78bec9015f0f5cbc98d724104ae0a7823732e14b2cbbe834ded05239efefd3.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Windows\SysWOW64\svchost.exe
      svchost.exe
      2⤵
      • Sets service image path in registry
      • Deletes itself
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      PID:3344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 540
      2⤵
      • Program crash
      PID:3984
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4468 -ip 4468
    1⤵
      PID:3192
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 1200 -ip 1200
      1⤵
        PID:2188

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        11.1MB

        MD5

        2f505f8677f1d7531b982af246851586

        SHA1

        f1932e312ecddf61620dc9df3f7c40f7a3bc298e

        SHA256

        cda96dc7908d047bdf9b4f0d1842e7861da103b000fb9a8f3bbea0d4b4430217

        SHA512

        7c71b21b14f30a3b33c4300798585dc3394a48d1489e042c7b22ca9fa9207f6d5655b7e18959eb2bf52cdae1e877cb0c998d2ce24ff1cd7f5ccb3e0ee15ad151

      • memory/1200-8-0x0000000000400000-0x00000000005FE000-memory.dmp

        Filesize

        2.0MB

      • memory/1200-11-0x0000000000400000-0x00000000005FE000-memory.dmp

        Filesize

        2.0MB

      • memory/1200-12-0x0000000000400000-0x00000000005FE000-memory.dmp

        Filesize

        2.0MB

      • memory/3344-38-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-44-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-21-0x0000000002A00000-0x0000000002C0F000-memory.dmp

        Filesize

        2.1MB

      • memory/3344-24-0x0000000002D50000-0x0000000002D56000-memory.dmp

        Filesize

        24KB

      • memory/3344-27-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-30-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-31-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-17-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

        Filesize

        84KB

      • memory/3344-18-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

        Filesize

        84KB

      • memory/3344-23-0x0000000002A00000-0x0000000002C0F000-memory.dmp

        Filesize

        2.1MB

      • memory/3344-51-0x0000000007A40000-0x0000000007E4B000-memory.dmp

        Filesize

        4.0MB

      • memory/3344-50-0x0000000002FF0000-0x0000000002FF5000-memory.dmp

        Filesize

        20KB

      • memory/3344-55-0x0000000007F90000-0x0000000007F97000-memory.dmp

        Filesize

        28KB

      • memory/3344-54-0x0000000007A40000-0x0000000007E4B000-memory.dmp

        Filesize

        4.0MB

      • memory/3344-47-0x0000000002FF0000-0x0000000002FF5000-memory.dmp

        Filesize

        20KB

      • memory/3344-46-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-45-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-9-0x0000000000BD0000-0x0000000000BE5000-memory.dmp

        Filesize

        84KB

      • memory/3344-43-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-42-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-41-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-40-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-39-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-32-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-37-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-36-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-35-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-34-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/3344-33-0x0000000002D60000-0x0000000002D70000-memory.dmp

        Filesize

        64KB

      • memory/4468-1-0x0000000000780000-0x0000000000880000-memory.dmp

        Filesize

        1024KB

      • memory/4468-14-0x0000000000400000-0x00000000005FE000-memory.dmp

        Filesize

        2.0MB

      • memory/4468-15-0x0000000002440000-0x0000000002453000-memory.dmp

        Filesize

        76KB

      • memory/4468-16-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB

      • memory/4468-2-0x0000000002440000-0x0000000002453000-memory.dmp

        Filesize

        76KB

      • memory/4468-3-0x0000000000400000-0x0000000000415000-memory.dmp

        Filesize

        84KB