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Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2024, 13:55

General

  • Target

    74dd30781f439b8ba87ff15e38e9feb7.exe

  • Size

    24KB

  • MD5

    74dd30781f439b8ba87ff15e38e9feb7

  • SHA1

    69d0dfcab05663214b00cb4584493ac72a78a790

  • SHA256

    64b586b3c1ad5ef4fb644178403d06a277ea7725dc989fe8f880068f801b0ab3

  • SHA512

    b08910166d12f0d5d3327e37e877e23c5484a494c4d296a0f1210ac3e980022d3c672a476cd7b7081c6c481a080961cd58955c11e8e2bcbdc5ad7af5622d9864

  • SSDEEP

    384:E3eVES+/xwGkRKJnJtlM61qmTTMVF9/q5f0:bGS+ZfbJnO8qYoAc

Score
6/10

Malware Config

Signatures

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Runs net.exe
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74dd30781f439b8ba87ff15e38e9feb7.exe
    "C:\Users\Admin\AppData\Local\Temp\74dd30781f439b8ba87ff15e38e9feb7.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3600
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ver >c:\windows\temp\flash.log & cmd /c set >>c:\windows\temp\flash.log & ipconfig /all >>c:\windows\temp\flash.log & tasklist >>c:\windows\temp\flash.log & net start>>c:\windows\temp\flash.log & netstat -an >>c:\windows\temp\flash.log
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3148
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c set
        3⤵
          PID:4648
        • C:\Windows\SysWOW64\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:2816
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:1164
        • C:\Windows\SysWOW64\net.exe
          net start
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2084
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start
            4⤵
              PID:1604
          • C:\Windows\SysWOW64\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:4468

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • \??\c:\windows\temp\flash.log

        Filesize

        14KB

        MD5

        bdc4a087a6193f4f13241fcaf8d9107d

        SHA1

        2b86b98a329f63fd74d58463acfc43fe1ebf63fa

        SHA256

        3bf40a3974c7975863c4d86dc67b26b0c3712937913c1aac4b17db4f26d2ab74

        SHA512

        58e49933c197047ab714b60acf51ee0fd33217ae63fb3a3e476603ea3f28cd46bc10facae0bef914b8597f7c664bae6f3fb36dd1c94d03ccafdb065607240952