Analysis

  • max time kernel
    147s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13/03/2024, 09:37

General

  • Target

    c589e57813712cdca2f4e39ab028c665.exe

  • Size

    12.6MB

  • MD5

    c589e57813712cdca2f4e39ab028c665

  • SHA1

    8fdaac9837d59ae86e15ea0ce17afb5b1ddbf447

  • SHA256

    7c74a5c28e75dc5c494548b2f305d0bd34ac51c4fbe72e32a24df04397fb4cbd

  • SHA512

    2d582894b12996acdff1560a032fc2ee34d313be92eec23ec2517ef9af9da07b45bbaf8e4dd0817eb0c13947e8141ad45fcfe6f83bdec5bf859503e3d04268da

  • SSDEEP

    49152:vj55555555555555555555555555555555555555555555555555555555555553:

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.

  • Windows security bypass 2 TTPs 1 IoCs
  • Creates new service(s) 1 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).

  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c589e57813712cdca2f4e39ab028c665.exe
    "C:\Users\Admin\AppData\Local\Temp\c589e57813712cdca2f4e39ab028c665.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gqndjmhc\
      2⤵
        PID:2560
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\dfaricjc.exe" C:\Windows\SysWOW64\gqndjmhc\
        2⤵
          PID:2652
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create gqndjmhc binPath= "C:\Windows\SysWOW64\gqndjmhc\dfaricjc.exe /d\"C:\Users\Admin\AppData\Local\Temp\c589e57813712cdca2f4e39ab028c665.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
          • Launches sc.exe
          PID:2696
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" description gqndjmhc "wifi internet conection"
          2⤵
          • Launches sc.exe
          PID:1676
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" start gqndjmhc
          2⤵
          • Launches sc.exe
          PID:2076
        • 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
          PID:2552
      • C:\Windows\SysWOW64\gqndjmhc\dfaricjc.exe
        C:\Windows\SysWOW64\gqndjmhc\dfaricjc.exe /d"C:\Users\Admin\AppData\Local\Temp\c589e57813712cdca2f4e39ab028c665.exe"
        1⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1460
        • C:\Windows\SysWOW64\svchost.exe
          svchost.exe
          2⤵
          • Windows security bypass
          • Sets service image path in registry
          • Deletes itself
          PID:2180

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              10.9MB

              MD5

              0d2f3d1815929fbf65ce1f9469af4728

              SHA1

              c899b614fcc4b42301f836c3fcd8e6e973a76c76

              SHA256

              95e141e8d3f191af05100a54b6b8ea80760654f71a06b37c760a65d09e8186e7

              SHA512

              73d7c39fa54fc2a80225c4dca679afe52a03638cac4ce2fe8d94eee9d588c93e04a170879f1664bfe6d1fe3882e45f344ec50db5af9503bf90db70f5c74ea99a

            • C:\Windows\SysWOW64\gqndjmhc\dfaricjc.exe

              Filesize

              8.5MB

              MD5

              292ee52256caf3d56ddd8058f65da965

              SHA1

              c2582581ba17710e79b654a4a8f7da1b0131db68

              SHA256

              c91a6732ef4d6c974a93ce8d95654028c49e3aee3da5cdb21b7e6991a28a8d5c

              SHA512

              23562d6c321ef3f90671e10ff4d8149ed423adc10706afdaab4e575e7ce3e8f408c5616fdeb4050bfada8c56e4ced582fb7752d3aa1ce8345ed4cf4d78428eab

            • memory/1460-9-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/1460-8-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/1460-15-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/2180-11-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2180-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2180-14-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2180-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2180-19-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2180-20-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2180-21-0x00000000000D0000-0x00000000000E5000-memory.dmp

              Filesize

              84KB

            • memory/2708-3-0x0000000000230000-0x0000000000231000-memory.dmp

              Filesize

              4KB

            • memory/2708-6-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/2708-0-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB

            • memory/2708-1-0x0000000000220000-0x0000000000221000-memory.dmp

              Filesize

              4KB

            • memory/2708-2-0x0000000000400000-0x000000000041E000-memory.dmp

              Filesize

              120KB