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Analysis

  • max time kernel
    0s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 13:46

General

  • Target

    389516b53756da46ee90b831ba8943ba.dll

  • Size

    164KB

  • MD5

    389516b53756da46ee90b831ba8943ba

  • SHA1

    0e41f0553920fda2e608523e99dfb5a76541417b

  • SHA256

    6d511cc2ae79502fe78a4e2a12790563b1af3743e575f1ff1a572a5f2737c292

  • SHA512

    d723c0f6792b1859a369374d4d024c463565c6c9eb40ed7476a9cdf90492e4c2114fdf5d4d0d2186756810f442daeb10d684eed30de348bd085dc71133f02237

  • SSDEEP

    3072:TDkvq9kS+RwTK4iDY2knwnLy4egAOd1gKDanQObo3/ejtopVthOK8+ZTWsJpEzAL:TDjrKwTVi07CO4eDOd1gK+do2ZopMK82

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UPX packed file 2 IoCs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\389516b53756da46ee90b831ba8943ba.dll,#1
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Windows\SysWOW64\explorer.exe
      explorer C:\Users\Admin\AppData
      2⤵
        PID:4696
    • C:\Windows\system32\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\389516b53756da46ee90b831ba8943ba.dll,#1
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:5088
    • C:\Windows\explorer.exe
      C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
      1⤵
        PID:5048
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:832
        • C:\Windows\Explorer.EXE
          C:\Windows\Explorer.EXE
          1⤵
          • Modifies registry class
          • Suspicious use of FindShellTrayWindow
          PID:3496

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • memory/3416-0-0x0000000010000000-0x000000001001B000-memory.dmp

          Filesize

          108KB

        • memory/3416-9-0x000000007F800000-0x000000007F801000-memory.dmp

          Filesize

          4KB

        • memory/3416-10-0x0000000010000000-0x000000001001B000-memory.dmp

          Filesize

          108KB

        • memory/3416-8-0x00000000775D2000-0x00000000775D3000-memory.dmp

          Filesize

          4KB

        • memory/3416-7-0x00000000004F0000-0x0000000000511000-memory.dmp

          Filesize

          132KB

        • memory/3416-6-0x00000000004F0000-0x0000000000511000-memory.dmp

          Filesize

          132KB

        • memory/3416-4-0x00000000004F0000-0x0000000000511000-memory.dmp

          Filesize

          132KB