Analysis

  • max time kernel
    189s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 01:12

General

  • Target
    file.exe
  • Size 1.1MB
  • Sample231011-bkhj3sbe82
  • SHA256 08c0d32c5801467454e923599e74fc5c10ff0db6d152d9e5f67a303203e33db4
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4796
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fE7mx12.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fE7mx12.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1448
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Ta9LR32.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Ta9LR32.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of WriteProcessMemory
        PID:2604
        • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\YI7lt98.exe
          C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\YI7lt98.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of WriteProcessMemory
          PID:3524
          • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\1Pm31Pz7.exe
            C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\1Pm31Pz7.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:396
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
              6⤵
                PID:912
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                6⤵
                • Modifies Windows Defender Real-time Protection settings
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2132
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 592
                6⤵
                • Program crash
                PID:4524
            • C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\2Su3970.exe
              C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\2Su3970.exe
              5⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:1648
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                6⤵
                  PID:884
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 884 -s 540
                    7⤵
                    • Program crash
                    PID:4688
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 1648 -s 568
                  6⤵
                  • Program crash
                  PID:1608
            • C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\3wq32Jb.exe
              C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\3wq32Jb.exe
              4⤵
              • Executes dropped EXE
              • Suspicious use of SetThreadContext
              • Suspicious use of WriteProcessMemory
              PID:2560
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                5⤵
                  PID:2608
                • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                  5⤵
                    PID:3912
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
                    5⤵
                    • Checks SCSI registry key(s)
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3116
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -u -p 2560 -s 600
                    5⤵
                    • Program crash
                    PID:2828
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 396 -ip 396
            1⤵
              PID:1060
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1648 -ip 1648
              1⤵
                PID:2552
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 884 -ip 884
                1⤵
                  PID:2464
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2560 -ip 2560
                  1⤵
                    PID:2780

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        fE7mx12.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fE7mx12.exe
                        • Size 954KB
                        • SHA256 0a9625caa50c9880abede63bf296fdd87018af084d5c41b603d59e4357b57ec4
                        • MD5 SHA1 SHA512 SSDEEP

                        fE7mx12.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\fE7mx12.exe
                        • Size 954KB
                        • SHA256 0a9625caa50c9880abede63bf296fdd87018af084d5c41b603d59e4357b57ec4
                        • MD5 SHA1 SHA512 SSDEEP

                        Ta9LR32.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Ta9LR32.exe
                        • Size 652KB
                        • SHA256 7d19d5e89549bacb5248e78da9cd1379217a73a692d05f0db8e67a3fc1abf5da
                        • MD5 SHA1 SHA512 SSDEEP

                        Ta9LR32.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\Ta9LR32.exe
                        • Size 652KB
                        • SHA256 7d19d5e89549bacb5248e78da9cd1379217a73a692d05f0db8e67a3fc1abf5da
                        • MD5 SHA1 SHA512 SSDEEP

                        3wq32Jb.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\3wq32Jb.exe
                        • Size 295KB
                        • SHA256 7b02bd9b765f902af95bbddb9de152f522ee380316e24ac6ff24f465a1dce1c9
                        • MD5 SHA1 SHA512 SSDEEP

                        3wq32Jb.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\3wq32Jb.exe
                        • Size 295KB
                        • SHA256 7b02bd9b765f902af95bbddb9de152f522ee380316e24ac6ff24f465a1dce1c9
                        • MD5 SHA1 SHA512 SSDEEP

                        YI7lt98.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\YI7lt98.exe
                        • Size 400KB
                        • SHA256 325c29450949966ebe800926f94337a6e135f93800ca4a4ddf05af666dceeafb
                        • MD5 SHA1 SHA512 SSDEEP

                        YI7lt98.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\YI7lt98.exe
                        • Size 400KB
                        • SHA256 325c29450949966ebe800926f94337a6e135f93800ca4a4ddf05af666dceeafb
                        • MD5 SHA1 SHA512 SSDEEP

                        1Pm31Pz7.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\1Pm31Pz7.exe
                        • Size 276KB
                        • SHA256 a3aba7aab05f09532cfe1079a39be88f8e622042c288adf1c293f3054f476b9b
                        • MD5 SHA1 SHA512 SSDEEP

                        1Pm31Pz7.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\1Pm31Pz7.exe
                        • Size 276KB
                        • SHA256 a3aba7aab05f09532cfe1079a39be88f8e622042c288adf1c293f3054f476b9b
                        • MD5 SHA1 SHA512 SSDEEP

                        2Su3970.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\2Su3970.exe
                        • Size 448KB
                        • SHA256 a6d4ffcd7ca72d4840e2817e609c148f7f6fe40e78c32b9b309c71d4ae058126
                        • MD5 SHA1 SHA512 SSDEEP

                        2Su3970.exe

                        • Path C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\2Su3970.exe
                        • Size 448KB
                        • SHA256 a6d4ffcd7ca72d4840e2817e609c148f7f6fe40e78c32b9b309c71d4ae058126
                        • MD5 SHA1 SHA512 SSDEEP

                        memory/884-37-0x0000000000400000-0x0000000000433000-memory.dmp

                        memory/884-36-0x0000000000400000-0x0000000000433000-memory.dmp

                        memory/884-38-0x0000000000400000-0x0000000000433000-memory.dmp

                        memory/884-40-0x0000000000400000-0x0000000000433000-memory.dmp

                        memory/2132-32-0x00000000744B0000-0x0000000074C60000-memory.dmp

                        memory/2132-30-0x00000000744B0000-0x0000000074C60000-memory.dmp

                        memory/2132-29-0x00000000744B0000-0x0000000074C60000-memory.dmp

                        memory/2132-28-0x0000000000400000-0x000000000040A000-memory.dmp

                        memory/3116-44-0x0000000000400000-0x0000000000409000-memory.dmp

                        memory/3116-45-0x0000000000400000-0x0000000000409000-memory.dmp