Analysis

  • max time kernel
    141s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 10:34

General

  • Target

    48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d.exe

  • Size

    198KB

  • MD5

    7b1fe3528fb63fc0573650953adc7389

  • SHA1

    43a2b2a1e1a664f8090351af73f9ebf2d83b0683

  • SHA256

    48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

  • SHA512

    15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

  • SSDEEP

    3072:zvHRBCFK1tO+o77x/qB7QoP2GhyGYnbD6aUFHT7EfljEnUjAdDZdIlhzji:zvHXCF8oPxirPdhGbD6aWE4UjAPChq

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:1212
      • C:\Users\Admin\AppData\Local\Temp\48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d.exe
        "C:\Users\Admin\AppData\Local\Temp\48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1744
        • C:\Users\Admin\AppData\Local\Temp\48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d.exe
          "C:\Users\Admin\AppData\Local\Temp\48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1148
          • C:\Windows\SysWOW64\wmpnv86.exe
            "C:\Windows\SysWOW64\wmpnv86.exe" C:\Users\Admin\AppData\Local\Temp\48AE45~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1408
            • C:\Windows\SysWOW64\wmpnv86.exe
              "C:\Windows\SysWOW64\wmpnv86.exe" C:\Users\Admin\AppData\Local\Temp\48AE45~1.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:892

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\wmpnv86.exe

      Filesize

      198KB

      MD5

      7b1fe3528fb63fc0573650953adc7389

      SHA1

      43a2b2a1e1a664f8090351af73f9ebf2d83b0683

      SHA256

      48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

      SHA512

      15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

    • C:\Windows\SysWOW64\wmpnv86.exe

      Filesize

      198KB

      MD5

      7b1fe3528fb63fc0573650953adc7389

      SHA1

      43a2b2a1e1a664f8090351af73f9ebf2d83b0683

      SHA256

      48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

      SHA512

      15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

    • C:\Windows\SysWOW64\wmpnv86.exe

      Filesize

      198KB

      MD5

      7b1fe3528fb63fc0573650953adc7389

      SHA1

      43a2b2a1e1a664f8090351af73f9ebf2d83b0683

      SHA256

      48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

      SHA512

      15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

    • \Windows\SysWOW64\wmpnv86.exe

      Filesize

      198KB

      MD5

      7b1fe3528fb63fc0573650953adc7389

      SHA1

      43a2b2a1e1a664f8090351af73f9ebf2d83b0683

      SHA256

      48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

      SHA512

      15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

    • \Windows\SysWOW64\wmpnv86.exe

      Filesize

      198KB

      MD5

      7b1fe3528fb63fc0573650953adc7389

      SHA1

      43a2b2a1e1a664f8090351af73f9ebf2d83b0683

      SHA256

      48ae459933d4ce8d8adc82834f3b0dad6dbe069c6b3f21a425f6a0698f2c2c3d

      SHA512

      15ed12ffdc646a629a438a5c8f5285bff6930acfaaf9fdb0026fe48012d72a1652eedb094a2dadacc2257a0672e167e31c30b3a8c99512f4887ab4056562c072

    • memory/892-84-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/892-83-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/892-71-0x0000000000000000-mapping.dmp

    • memory/1148-64-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-65-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-54-0x0000000000000000-mapping.dmp

    • memory/1148-59-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-58-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-63-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-56-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-55-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-82-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-62-0x0000000000400000-0x000000000044B000-memory.dmp

      Filesize

      300KB

    • memory/1148-61-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

      Filesize

      8KB

    • memory/1212-85-0x0000000002B70000-0x0000000002B8E000-memory.dmp

      Filesize

      120KB

    • memory/1408-68-0x0000000000000000-mapping.dmp