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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 16:53

General

  • Target

    c921a19a803a3eb62ff67ecd9f5d238b.exe

  • Size

    24KB

  • MD5

    c921a19a803a3eb62ff67ecd9f5d238b

  • SHA1

    8e48e538abf42a23ccb23714cf59593c41bbaaae

  • SHA256

    d816fbf9bf26b466bc69a0cb1624c82bae397fe6f8ce6f388a330f70fe2d8150

  • SHA512

    ce4b39da393c141e8fe890fd9c40f36c232684ee7000f106178e784ec04c382998e7fed76278a43f35d3fcb4fa679487b90ff4986cac188305c1bf7b40d6344f

  • SSDEEP

    384:E3eVES+/xwGkRKJilM61qmTTMVF9/q5N0:bGS+ZfbJiO8qYoAi

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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c921a19a803a3eb62ff67ecd9f5d238b.exe
    "C:\Users\Admin\AppData\Local\Temp\c921a19a803a3eb62ff67ecd9f5d238b.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2280
    • 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:1564
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c set
        3⤵
          PID:2052
        • C:\Windows\SysWOW64\ipconfig.exe
          ipconfig /all
          3⤵
          • Gathers network information
          PID:2804
        • C:\Windows\SysWOW64\tasklist.exe
          tasklist
          3⤵
          • Enumerates processes with tasklist
          • Suspicious use of AdjustPrivilegeToken
          PID:2520
        • C:\Windows\SysWOW64\net.exe
          net start
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2556
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start
            4⤵
              PID:2536
          • C:\Windows\SysWOW64\NETSTAT.EXE
            netstat -an
            3⤵
            • Gathers network information
            • Suspicious use of AdjustPrivilegeToken
            PID:2624

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • \??\c:\windows\temp\flash.log

        Filesize

        8KB

        MD5

        6b70bb411b9171745463936c92c9d85f

        SHA1

        5f90ceda80abdb4d34e8a262c11869774f2d064f

        SHA256

        d3d5feafe905f11a8b709e84dbd287a057d41159ac0721c05ea679a1f5b8b431

        SHA512

        2d074f556a692b41f36d78d515ddaf2b385329aee908decb60948d62686ccd827218425e28d44016890e57771209462e7026178626c4223a1d003bcbfb267e77