Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    22/01/2024, 13:52

General

  • Target

    6f98ee6b211b90003ed333a8a669be33.exe

  • Size

    141KB

  • MD5

    6f98ee6b211b90003ed333a8a669be33

  • SHA1

    e8b9f4beb3cb792c5a07c38430d26fdafdb42473

  • SHA256

    656a3c926ba4c2cd44b4cc4189e69e398959392b5060d4f87bbd7b7e45f59bc8

  • SHA512

    846395e21c77822777f237463668573bc6fda3f15ab6eecfa6e832905ec5dc1cae1b2797a3b53e0497712ab213e52f318d58c6685d12f9428440bac04c18b8e8

  • SSDEEP

    1536:vUsHXJnoTPNB5xkBCYB5bbfle4UcXT9+jHshXh66sBDgaf8Dk/NOYi2detAuLSpw:vUiUB5Khbbde68yh9af8D6jze2uGp47

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1380
      • C:\Users\Admin\AppData\Local\Temp\6f98ee6b211b90003ed333a8a669be33.exe
        "C:\Users\Admin\AppData\Local\Temp\6f98ee6b211b90003ed333a8a669be33.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:2424
        • C:\Users\Admin\AppData\Local\Temp\6f98ee6b211b90003ed333a8a669be33.exe
          "C:\Users\Admin\AppData\Local\Temp\6f98ee6b211b90003ed333a8a669be33.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:624
          • C:\Windows\SysWOW64\igfxvc32.exe
            "C:\Windows\SysWOW64\igfxvc32.exe" C:\Users\Admin\AppData\Local\Temp\6F98EE~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of UnmapMainImage
            • Suspicious use of WriteProcessMemory
            PID:2840
            • C:\Windows\SysWOW64\igfxvc32.exe
              "C:\Windows\SysWOW64\igfxvc32.exe" C:\Users\Admin\AppData\Local\Temp\6F98EE~1.EXE
              5⤵
              • Modifies firewall policy service
              • Deletes itself
              • Executes dropped EXE
              • Adds Run key to start application
              • Maps connected drives based on registry
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2856

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\igfxvc32.exe

            Filesize

            141KB

            MD5

            6f98ee6b211b90003ed333a8a669be33

            SHA1

            e8b9f4beb3cb792c5a07c38430d26fdafdb42473

            SHA256

            656a3c926ba4c2cd44b4cc4189e69e398959392b5060d4f87bbd7b7e45f59bc8

            SHA512

            846395e21c77822777f237463668573bc6fda3f15ab6eecfa6e832905ec5dc1cae1b2797a3b53e0497712ab213e52f318d58c6685d12f9428440bac04c18b8e8

          • \Windows\SysWOW64\igfxvc32.exe

            Filesize

            128KB

            MD5

            daf8ad2d8b1cf521c70eb346305f1017

            SHA1

            c70f07a3a888cbeb1dd3b1e3cbddcf431e8daf1e

            SHA256

            f64965304d283f8a5aef08e636d5fe7fda5c842439dc79989edc17194c8ba6e5

            SHA512

            74e618a4e9314afbb3cbf58f6866ebdb5349663e90561f5cab2e07b4c33ecbda1ebb663d69bfeb40b1c1d096d216574e74a69c429458bd3ece3d1d4a90deac93

          • memory/624-6-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-0-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-8-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-10-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-11-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-9-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-4-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-2-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-33-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB

          • memory/624-34-0x0000000000400000-0x0000000000427000-memory.dmp

            Filesize

            156KB

          • memory/1380-36-0x0000000002550000-0x000000000256E000-memory.dmp

            Filesize

            120KB

          • memory/1380-37-0x0000000002570000-0x0000000002571000-memory.dmp

            Filesize

            4KB

          • memory/2856-35-0x0000000000400000-0x000000000044C000-memory.dmp

            Filesize

            304KB