Resubmissions

28/11/2022, 09:53

221128-lwp4eaea3310

17/11/2022, 04:28

221117-e328zsdf6910

07/11/2022, 10:35

221107-mm272secgj10

Analysis

  • max time kernel
    23s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    17/11/2022, 04:28

General

  • Target
    update.exe
  • Size 60.2MB
  • Sample221117-e328zsdf69
  • SHA256 ca94c8bbbb10febb8187f8c709affaa91911f646cf0ac99e857bf45b3a709091
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 5 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Blocks application from running via registry modification 27 IoCs

    Adds application to list of disallowed applications.

  • Modifies Windows Firewall 1 TTPs 7 IoCs
  • Stops running service(s) 3 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 31 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Modifies WinLogon 2 TTPs 3 IoCs
  • AutoIT Executable 16 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Launches sc.exe 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • System policy modification 1 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\update.exe
    "C:\Users\Admin\AppData\Local\Temp\update.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • UAC bypass
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Blocks application from running via registry modification
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Modifies WinLogon
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1380
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c sc delete swprv
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\system32\sc.exe
        sc delete swprv
        3⤵
        • Launches sc.exe
        PID:668
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="AppModule" dir=in action=allow program="C:\ProgramData\WindowsTask\AppModule.exe" enable=yes
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1804
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c netsh advfirewall set allprofiles state on
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1528
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="AMD" dir=in action=allow program="C:\ProgramData\WindowsTask\AMD.exe" enable=yes
      2⤵
        PID:1376
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="Port Blocking" protocol=TCP localport=445 action=block dir=IN
        2⤵
          PID:852
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="Port Blocking" protocol=UDP localport=445 action=block dir=IN
          2⤵
            PID:1180
            • C:\Windows\system32\netsh.exe
              netsh advfirewall firewall add rule name="Port Blocking" protocol=UDP localport=445 action=block dir=IN
              3⤵
              • Modifies Windows Firewall
              PID:524
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="Port Block" protocol=TCP localport=139 action=block dir=IN
            2⤵
              PID:1868
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c netsh advfirewall firewall add rule name="Port Block" protocol=UDP localport=139 action=block dir=IN
              2⤵
                PID:964
              • C:\ProgramData\Setup\Game.exe
                C:\ProgramData\Setup\Game.exe -pnaxui
                2⤵
                  PID:1124
                  • C:\ProgramData\RealtekHD\GameGuard.exe
                    "C:\ProgramData\RealtekHD\GameGuard.exe"
                    3⤵
                      PID:1476
                    • C:\ProgramData\RealtekHD\taskhost.exe
                      "C:\ProgramData\RealtekHD\taskhost.exe"
                      3⤵
                        PID:880
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall set allprofiles state on
                    1⤵
                    • Modifies Windows Firewall
                    PID:744
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall firewall add rule name="AppModule" dir=in action=allow program="C:\ProgramData\WindowsTask\AppModule.exe" enable=yes
                    1⤵
                    • Modifies Windows Firewall
                    PID:1708
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall firewall add rule name="AMD" dir=in action=allow program="C:\ProgramData\WindowsTask\AMD.exe" enable=yes
                    1⤵
                    • Modifies Windows Firewall
                    PID:1952
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall firewall add rule name="Port Blocking" protocol=TCP localport=445 action=block dir=IN
                    1⤵
                    • Modifies Windows Firewall
                    PID:780
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall firewall add rule name="Port Block" protocol=TCP localport=139 action=block dir=IN
                    1⤵
                    • Modifies Windows Firewall
                    PID:1276
                  • C:\Windows\system32\netsh.exe
                    netsh advfirewall firewall add rule name="Port Block" protocol=UDP localport=139 action=block dir=IN
                    1⤵
                    • Modifies Windows Firewall
                    PID:1384
                  • C:\Windows\system32\taskmgr.exe
                    "C:\Windows\system32\taskmgr.exe" /4
                    1⤵
                      PID:1464

                    Network

                          MITRE ATT&CK Enterprise v6

                          Replay Monitor

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                          Downloads

                          GameGuard.exe

                          • Path C:\ProgramData\RealtekHD\GameGuard.exe
                          • Size 5.0MB
                          • SHA256 fc110064f6cee1dfb6793283a7bf1964347b1e6b29a0db8efc70dd77c15c85a1
                          • MD5 SHA1 SHA512 SSDEEP

                          GameGuard.exe

                          • Path C:\ProgramData\RealtekHD\GameGuard.exe
                          • Size 4.2MB
                          • SHA256 ce833f5fbcb230f6b7a4efdd97a7d44ddb5b530298473c10e2805b43d7d91977
                          • MD5 SHA1 SHA512 SSDEEP

                          taskhost.exe

                          • Path C:\ProgramData\RealtekHD\taskhost.exe
                          • Size 6.2MB
                          • SHA256 8e05ed626d21b7157490a92be742d4687d2b7f534fb13ca2eebeb979c9cd39aa
                          • MD5 SHA1 SHA512 SSDEEP

                          taskhost.exe

                          • Path C:\ProgramData\RealtekHD\taskhost.exe
                          • Size 6.0MB
                          • SHA256 2f7fda1049c4748336f3e2c4011e0ec1a62ba83bc9786b3069335ba487d606fd
                          • MD5 SHA1 SHA512 SSDEEP

                          Game.exe

                          • Path C:\ProgramData\Setup\Game.exe
                          • Size 8.4MB
                          • SHA256 f4e81f05aa5c0371231b60210f42afe6ffe9fdde05a1bf5c6609fa95c61d40b7
                          • MD5 SHA1 SHA512 SSDEEP

                          Game.exe

                          • Path C:\ProgramData\Setup\Game.exe
                          • Size 8.1MB
                          • SHA256 58b7adda1858eb651ff030bda70a613d03a5a69ed137cfa77acbf309bbcb659f
                          • MD5 SHA1 SHA512 SSDEEP

                          GameGuard.exe

                          • Path \ProgramData\RealtekHD\GameGuard.exe
                          • Size 5.0MB
                          • SHA256 fc110064f6cee1dfb6793283a7bf1964347b1e6b29a0db8efc70dd77c15c85a1
                          • MD5 SHA1 SHA512 SSDEEP

                          GameGuard.exe

                          • Path \ProgramData\RealtekHD\GameGuard.exe
                          • Size 5.0MB
                          • SHA256 fc110064f6cee1dfb6793283a7bf1964347b1e6b29a0db8efc70dd77c15c85a1
                          • MD5 SHA1 SHA512 SSDEEP

                          GameGuard.exe

                          • Path \ProgramData\RealtekHD\GameGuard.exe
                          • Size 4.0MB
                          • SHA256 c12c07ec3b48481e5c8a5f3505ac288c0a6a5b3627299af3175372e391346e20
                          • MD5 SHA1 SHA512 SSDEEP

                          taskhost.exe

                          • Path \ProgramData\RealtekHD\taskhost.exe
                          • Size 5.5MB
                          • SHA256 b92d212ae2193ee5f8bf70d9830c7009f51c232419a21c88ed696921097f9a01
                          • MD5 SHA1 SHA512 SSDEEP

                          taskhost.exe

                          • Path \ProgramData\RealtekHD\taskhost.exe
                          • Size 5.4MB
                          • SHA256 1ad53cb03047dcc99a368f82029e01ad7795bce8504b315aa78851f18e4f9520
                          • MD5 SHA1 SHA512 SSDEEP

                          taskhost.exe

                          • Path \ProgramData\RealtekHD\taskhost.exe
                          • Size 6.4MB
                          • SHA256 ef5114a20d122583ae6ccc2b19fee23bad302190a2f0883e558e36cd786f5e99
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/880-121-0x000000013F1B0000-0x00000001424D2000-memory.dmp

                          memory/880-117-0x000000013F1B0000-0x00000001424D2000-memory.dmp

                          memory/880-123-0x0000000077030000-0x00000000771D9000-memory.dmp

                          memory/1124-92-0x00000000757A1000-0x00000000757A3000-memory.dmp

                          memory/1380-56-0x0000000077030000-0x00000000771D9000-memory.dmp

                          memory/1380-66-0x0000000077030000-0x00000000771D9000-memory.dmp

                          memory/1380-57-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-58-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-54-0x000007FEFB8B1000-0x000007FEFB8B3000-memory.dmp

                          memory/1380-65-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-64-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-63-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-55-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-59-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-62-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-61-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1380-60-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1464-122-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1464-106-0x0000000140000000-0x00000001405E8000-memory.dmp

                          memory/1464-105-0x0000000140000000-0x00000001405E8000-memory.dmp

                          memory/1464-119-0x000000013F2A0000-0x0000000143563000-memory.dmp

                          memory/1476-112-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-118-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-111-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-126-0x0000000077030000-0x00000000771D9000-memory.dmp

                          memory/1476-113-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-114-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-115-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-116-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-125-0x000000013FF40000-0x0000000140B08000-memory.dmp

                          memory/1476-120-0x000000013FF40000-0x0000000140B08000-memory.dmp