Analysis

  • max time kernel
    87s
  • max time network
    95s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2022 03:06

General

  • Target

    d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe

  • Size

    133KB

  • MD5

    0c615d689ff9c3073a3dc6e5f2255cea

  • SHA1

    232ca5b45717fffd53085b45ef5a139167875631

  • SHA256

    d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

  • SHA512

    847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

  • SSDEEP

    3072:ZHpylbWMebpJaVpG74ZjV6x1YpuieRYY64l:ZieDa3G+iYwieOY6o

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:1384
      • C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
        "C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:576
        • C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe
          "C:\Users\Admin\AppData\Local\Temp\d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:832
          • C:\Windows\SysWOW64\wmpkd32.exe
            "C:\Windows\SysWOW64\wmpkd32.exe" C:\Users\Admin\AppData\Local\Temp\D97AA6~1.EXE
            4⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1516
            • C:\Windows\SysWOW64\wmpkd32.exe
              "C:\Windows\SysWOW64\wmpkd32.exe" C:\Users\Admin\AppData\Local\Temp\D97AA6~1.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:1620

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\wmpkd32.exe

      Filesize

      133KB

      MD5

      0c615d689ff9c3073a3dc6e5f2255cea

      SHA1

      232ca5b45717fffd53085b45ef5a139167875631

      SHA256

      d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

      SHA512

      847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

    • C:\Windows\SysWOW64\wmpkd32.exe

      Filesize

      133KB

      MD5

      0c615d689ff9c3073a3dc6e5f2255cea

      SHA1

      232ca5b45717fffd53085b45ef5a139167875631

      SHA256

      d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

      SHA512

      847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

    • C:\Windows\SysWOW64\wmpkd32.exe

      Filesize

      133KB

      MD5

      0c615d689ff9c3073a3dc6e5f2255cea

      SHA1

      232ca5b45717fffd53085b45ef5a139167875631

      SHA256

      d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

      SHA512

      847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

    • \Windows\SysWOW64\wmpkd32.exe

      Filesize

      133KB

      MD5

      0c615d689ff9c3073a3dc6e5f2255cea

      SHA1

      232ca5b45717fffd53085b45ef5a139167875631

      SHA256

      d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

      SHA512

      847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

    • \Windows\SysWOW64\wmpkd32.exe

      Filesize

      133KB

      MD5

      0c615d689ff9c3073a3dc6e5f2255cea

      SHA1

      232ca5b45717fffd53085b45ef5a139167875631

      SHA256

      d97aa681a9f6f0978b56882998dad0a2c347b121ff094f13a200a61daa769074

      SHA512

      847cf78dc2a8f8c6b204b58a1942e30193b317edd2ebdf7862b0dd7e7b69a39b9145b313a9ed7fbb47c7df66c423fb5aee51dfad4a94852462abf418d028a7f1

    • memory/832-61-0x0000000075911000-0x0000000075913000-memory.dmp

      Filesize

      8KB

    • memory/832-82-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-63-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-64-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-65-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-54-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-58-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-62-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-59-0x000000000044EA40-mapping.dmp

    • memory/832-57-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/832-55-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/1384-85-0x0000000002200000-0x000000000221E000-memory.dmp

      Filesize

      120KB

    • memory/1516-68-0x0000000000000000-mapping.dmp

    • memory/1620-83-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/1620-84-0x0000000000400000-0x0000000000451000-memory.dmp

      Filesize

      324KB

    • memory/1620-76-0x000000000044EA40-mapping.dmp