Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/01/2024, 17:31

General

  • Target

    607575be3135d1b617a5b2dddb884b19.exe

  • Size

    80KB

  • MD5

    607575be3135d1b617a5b2dddb884b19

  • SHA1

    ac5ba76759290781374b7cb3007abec289ff12a0

  • SHA256

    2fb6e21a3ff9891c2cec0dd337d8e1a6eb861e5033c564c8c20eacb3c00cb319

  • SHA512

    deabfb343e9f4dc18344ff2a7a2db0c778e0e41b5cf269b1a2cb52ac3146d7fe60cb33bccbe89b248fda78ed67ebc0eef89b53f990484856a6587c60a82a3046

  • SSDEEP

    1536:JytDtEjlehtyjEX44E9yBeZ4v6xosmSr/mNINOQft:ADtERenXaSeZf3mSreuNOw

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.

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\607575be3135d1b617a5b2dddb884b19.exe
    "C:\Users\Admin\AppData\Local\Temp\607575be3135d1b617a5b2dddb884b19.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Users\Admin\AppData\Local\Temp\607575be3135d1b617a5b2dddb884b19.exe
      "C:\Users\Admin\AppData\Local\Temp\607575be3135d1b617a5b2dddb884b19.exe"
      2⤵
      • Adds policy Run key to start application
      • Adds Run key to start application
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3988
      • C:\Windows\SysWOW64\shmt.exe
        "C:\Windows\system32\shmt.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2108
        • C:\Windows\SysWOW64\shmt.exe
          "C:\Windows\SysWOW64\shmt.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4180

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SysWOW64\shmt.exe

          Filesize

          57KB

          MD5

          f5a5826271a0e220e20e1758aa2681a5

          SHA1

          7329cfc539264ded6f3ad822cd97ad51275c6db2

          SHA256

          39af59a54debdc75b367432e3fd032df5c868d5930750f625b57bf69911001db

          SHA512

          78fe477174143ba199bd7ea994e2b2811f675af81e0612a13e88d08bc957cc73a12e6b4476aa4e09c7b1c8f42434fc170c35e9ee104d99284728df152e930527

        • C:\Windows\SysWOW64\shmt.exe

          Filesize

          80KB

          MD5

          607575be3135d1b617a5b2dddb884b19

          SHA1

          ac5ba76759290781374b7cb3007abec289ff12a0

          SHA256

          2fb6e21a3ff9891c2cec0dd337d8e1a6eb861e5033c564c8c20eacb3c00cb319

          SHA512

          deabfb343e9f4dc18344ff2a7a2db0c778e0e41b5cf269b1a2cb52ac3146d7fe60cb33bccbe89b248fda78ed67ebc0eef89b53f990484856a6587c60a82a3046

        • memory/2108-24-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/2108-14-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/3988-7-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3988-5-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3988-3-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/3988-8-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-25-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-26-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-29-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-30-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-33-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-34-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-35-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-36-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-37-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-40-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4180-41-0x0000000000400000-0x0000000000455000-memory.dmp

          Filesize

          340KB

        • memory/4432-6-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB

        • memory/4432-0-0x0000000000400000-0x000000000043A000-memory.dmp

          Filesize

          232KB