Analysis

  • max time kernel
    91s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-07-2022 06:18

General

  • Target

    478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513.exe

  • Size

    159KB

  • MD5

    48acf90968be209c5468707fb70799ae

  • SHA1

    f7704e957e9de6f4199d387ec3b2e862f684cec9

  • SHA256

    478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

  • SHA512

    3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

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:\Users\Admin\AppData\Local\Temp\478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513.exe
    "C:\Users\Admin\AppData\Local\Temp\478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:112
    • C:\Users\Admin\AppData\Local\Temp\478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513.exe
      "C:\Users\Admin\AppData\Local\Temp\478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513.exe"
      2⤵
      • Loads dropped DLL
      • Maps connected drives based on registry
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1616
      • C:\Windows\SysWOW64\igfxnd86.exe
        "C:\Windows\SysWOW64\igfxnd86.exe" C:\Users\Admin\AppData\Local\Temp\478C9E~1.EXE
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1212
        • C:\Windows\SysWOW64\igfxnd86.exe
          "C:\Windows\SysWOW64\igfxnd86.exe" C:\Users\Admin\AppData\Local\Temp\478C9E~1.EXE
          4⤵
          • 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:844
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1252

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\igfxnd86.exe

      Filesize

      159KB

      MD5

      48acf90968be209c5468707fb70799ae

      SHA1

      f7704e957e9de6f4199d387ec3b2e862f684cec9

      SHA256

      478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

      SHA512

      3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

    • C:\Windows\SysWOW64\igfxnd86.exe

      Filesize

      159KB

      MD5

      48acf90968be209c5468707fb70799ae

      SHA1

      f7704e957e9de6f4199d387ec3b2e862f684cec9

      SHA256

      478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

      SHA512

      3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

    • C:\Windows\SysWOW64\igfxnd86.exe

      Filesize

      159KB

      MD5

      48acf90968be209c5468707fb70799ae

      SHA1

      f7704e957e9de6f4199d387ec3b2e862f684cec9

      SHA256

      478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

      SHA512

      3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

    • \Windows\SysWOW64\igfxnd86.exe

      Filesize

      159KB

      MD5

      48acf90968be209c5468707fb70799ae

      SHA1

      f7704e957e9de6f4199d387ec3b2e862f684cec9

      SHA256

      478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

      SHA512

      3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

    • \Windows\SysWOW64\igfxnd86.exe

      Filesize

      159KB

      MD5

      48acf90968be209c5468707fb70799ae

      SHA1

      f7704e957e9de6f4199d387ec3b2e862f684cec9

      SHA256

      478c9e9e70389ed8e587dfbfb8abb07aed5b9b7a8ee1e471c0ea8a0e79097513

      SHA512

      3cad4dc339051822e66ce0bb21319a602a5ffe5958a4ad622f17a9f1ef8266fd4983160ae1e5ae8b1688f11f3260047138abe4d8c6ca8bd5ca723589e584ef5d

    • memory/112-61-0x0000000000400000-0x000000000043B000-memory.dmp

      Filesize

      236KB

    • memory/844-72-0x0000000000000000-mapping.dmp

    • memory/844-86-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/844-85-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1212-69-0x0000000000000000-mapping.dmp

    • memory/1212-80-0x0000000000400000-0x000000000043B000-memory.dmp

      Filesize

      236KB

    • memory/1252-87-0x00000000029E0000-0x00000000029FE000-memory.dmp

      Filesize

      120KB

    • memory/1616-54-0x0000000000000000-mapping.dmp

    • memory/1616-59-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-58-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-63-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-56-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-62-0x0000000075451000-0x0000000075453000-memory.dmp

      Filesize

      8KB

    • memory/1616-55-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-84-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-66-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-64-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/1616-65-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB