Analysis

  • max time kernel
    152s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19/10/2022, 13:29

General

  • Target

    52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108.exe

  • Size

    667KB

  • MD5

    a25be5a7a41f1c97f23a1d15baffd4f5

  • SHA1

    22dd9031e1b38ff132760b7c867ee50be809d313

  • SHA256

    52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

  • SHA512

    37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

  • SSDEEP

    12288:DpwABK90BOe/x9lPAYvxPQVjdsAY2XjWlnlpTMMXG91uhKIXn/W:FwAcu99lPzvxP+Bsz2XjWTRMQckkIXn

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

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

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 7 IoCs
  • Drops file in System32 directory 9 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 16 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108.exe
    "C:\Users\Admin\AppData\Local\Temp\52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1808
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
        PID:952
      • C:\Windows\SysWOW64\rundl32.exe
        "C:\Windows\system32\rundl32.exe"
        2⤵
        • Modifies WinLogon for persistence
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Loads dropped DLL
        • Adds Run key to start application
        • Drops file in System32 directory
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1760
        • C:\Windows\SysWOW64\explorer.exe
          "C:\Windows\SysWOW64\explorer.exe"
          3⤵
            PID:1004
          • C:\Windows\SysWOW64\rundl32.exe
            "C:\Windows\system32\rundl32.exe"
            3⤵
            • Modifies WinLogon for persistence
            • Executes dropped EXE
            • Checks BIOS information in registry
            • Adds Run key to start application
            • Drops file in System32 directory
            • Suspicious use of SetThreadContext
            • Checks processor information in registry
            • Enumerates system info in registry
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:828
            • C:\Windows\SysWOW64\explorer.exe
              "C:\Windows\SysWOW64\explorer.exe"
              4⤵
              • Windows security bypass
              • Checks BIOS information in registry
              • Adds Run key to start application
              • Checks processor information in registry
              • Enumerates system info in registry
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of SetWindowsHookEx
              PID:1708
            • C:\Windows\SysWOW64\ping.exe
              ping 127.0.0.1 -n 5 > NUL del "C:\Windows\SysWOW64\rundl32.exe"
              4⤵
              • Runs ping.exe
              PID:1704
          • C:\Windows\SysWOW64\ping.exe
            ping 127.0.0.1 -n 5 > NUL del "C:\Windows\SysWOW64\rundl32.exe"
            3⤵
            • Runs ping.exe
            PID:688
        • C:\Windows\SysWOW64\ping.exe
          ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108.exe"
          2⤵
          • Runs ping.exe
          PID:1424

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • C:\Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • C:\Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • C:\Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • \Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • \Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • \Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • \Windows\SysWOW64\rundl32.exe

              Filesize

              667KB

              MD5

              a25be5a7a41f1c97f23a1d15baffd4f5

              SHA1

              22dd9031e1b38ff132760b7c867ee50be809d313

              SHA256

              52184e448e67a013b0acd018065b06cd24fdc3055584f1d4b3d299a9d06e7108

              SHA512

              37a95dcdb9957c92c95f99f8687673f47ac4c0ed4c9d2a51b37451368869c57730a239c3ec4c0e94d37a6c216ebbd43966603f28028550edb629884b56bae48b

            • memory/1708-68-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1708-73-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1708-70-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1708-75-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1708-76-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1708-77-0x0000000000400000-0x00000000004B8000-memory.dmp

              Filesize

              736KB

            • memory/1808-54-0x0000000076171000-0x0000000076173000-memory.dmp

              Filesize

              8KB