Analysis

  • max time kernel
    106s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 10:35

General

  • Target

    4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed.exe

  • Size

    165KB

  • MD5

    070ac1c9c17cf27f103e8d0fce54569d

  • SHA1

    22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

  • SHA256

    4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

  • SHA512

    eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

  • SSDEEP

    3072:1nnx55H1SEWmO3NhXIb1ShoehRKTRi76Emd+:b8EUXF2eOV3e

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
  • Executes dropped EXE 2 IoCs
  • UPX packed file 10 IoCs

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

  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 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). Likely ransomware behaviour.

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

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1220
      • C:\Users\Admin\AppData\Local\Temp\4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed.exe
        "C:\Users\Admin\AppData\Local\Temp\4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1644
        • C:\Users\Admin\AppData\Local\Temp\4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed.exe
          "C:\Users\Admin\AppData\Local\Temp\4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1324
          • C:\Windows\SysWOW64\igfxmt32.exe
            "C:\Windows\SysWOW64\igfxmt32.exe" C:\Users\Admin\AppData\Local\Temp\4F1162~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1572
            • C:\Windows\SysWOW64\igfxmt32.exe
              "C:\Windows\SysWOW64\igfxmt32.exe" C:\Users\Admin\AppData\Local\Temp\4F1162~1.EXE
              5⤵
              • Modifies firewall policy service
              • Executes dropped EXE
              • Deletes itself
              • 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:1580

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxmt32.exe

      Filesize

      165KB

      MD5

      070ac1c9c17cf27f103e8d0fce54569d

      SHA1

      22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

      SHA256

      4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

      SHA512

      eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

    • C:\Windows\SysWOW64\igfxmt32.exe

      Filesize

      165KB

      MD5

      070ac1c9c17cf27f103e8d0fce54569d

      SHA1

      22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

      SHA256

      4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

      SHA512

      eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

    • C:\Windows\SysWOW64\igfxmt32.exe

      Filesize

      165KB

      MD5

      070ac1c9c17cf27f103e8d0fce54569d

      SHA1

      22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

      SHA256

      4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

      SHA512

      eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

    • \Windows\SysWOW64\igfxmt32.exe

      Filesize

      165KB

      MD5

      070ac1c9c17cf27f103e8d0fce54569d

      SHA1

      22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

      SHA256

      4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

      SHA512

      eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

    • \Windows\SysWOW64\igfxmt32.exe

      Filesize

      165KB

      MD5

      070ac1c9c17cf27f103e8d0fce54569d

      SHA1

      22d4d2f013de7e9da3e6a31ef5a8838ce3471eae

      SHA256

      4f1162096204092eb29e9ce483c3f926b0c510278b522d4b01c3ed8a9bd912ed

      SHA512

      eb8f20613dba41e41d109b55bcab3ee4ad167bfcd9628a65be096def01cbed94ff294ad7b9fd1b359b6e9636d90c2441afc1504ca1c609523fa6bc5c44a1dd26

    • memory/1220-85-0x0000000002950000-0x000000000296E000-memory.dmp

      Filesize

      120KB

    • memory/1324-61-0x0000000075A11000-0x0000000075A13000-memory.dmp

      Filesize

      8KB

    • memory/1324-59-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-64-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-65-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-62-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-54-0x0000000000000000-mapping.dmp

    • memory/1324-55-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-63-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-58-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-83-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1324-56-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1572-68-0x0000000000000000-mapping.dmp

    • memory/1580-82-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1580-71-0x0000000000000000-mapping.dmp

    • memory/1580-84-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB