Analysis

  • max time kernel
    121s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-12-2024 02:05

General

  • Target

    0b3af32b322e30f7f68017c13e59e71b6b1f26756477e122b40a20434bd01d01.exe

  • Size

    560KB

  • MD5

    37cb065f052d8cf6a46d41d6225b9a9f

  • SHA1

    ffcd01452c4b695f1371787a5c728c692283fca2

  • SHA256

    0b3af32b322e30f7f68017c13e59e71b6b1f26756477e122b40a20434bd01d01

  • SHA512

    8a2850f61af22a40ebb1e11c1d294cd74c94cf3b365619a4588bfbc54362575467cff4a5d75f685354b073453ad9892125739e78468a8dc550e52ccab88df47e

  • SSDEEP

    6144:s/9Sb1sKhV/+NZCwUW/mulaEqLhEWRzSyAZW9z9mXbj7Gvvai33Ew8X6Asz6UrZ:sFK1DH/p8l/zWRdP5mfA33EjKf6UrZ

Score
10/10

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Dcrat family
  • DCRat payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b3af32b322e30f7f68017c13e59e71b6b1f26756477e122b40a20434bd01d01.exe
    "C:\Users\Admin\AppData\Local\Temp\0b3af32b322e30f7f68017c13e59e71b6b1f26756477e122b40a20434bd01d01.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\x4J7NyPzVK.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2944
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2356
        • C:\Windows\system32\w32tm.exe
          w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
          3⤵
            PID:2652
          • C:\Users\Admin\AppData\Local\staticfile.exe
            "C:\Users\Admin\AppData\Local\staticfile.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2796

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\x4J7NyPzVK.bat

        Filesize

        219B

        MD5

        0ddd22f499f14dc8bb6be52e2c980c16

        SHA1

        529f9e515d065a5d3f003b07ee0de709726c2377

        SHA256

        38319bcc5998c505470378e6f6ef756fce742db306bb0ffbfd5cc95a95b9b7a4

        SHA512

        1bd408c1be6c3b51a446f2fd91414f69dbdb3c95e0dbd7776198a13e0f0d8cd3536d20f5a373bb81d59b8fac763e7fb254e377fcb1d3cbf53a549ca04218fb75

      • C:\Users\Admin\AppData\Local\staticfile.exe

        Filesize

        560KB

        MD5

        37cb065f052d8cf6a46d41d6225b9a9f

        SHA1

        ffcd01452c4b695f1371787a5c728c692283fca2

        SHA256

        0b3af32b322e30f7f68017c13e59e71b6b1f26756477e122b40a20434bd01d01

        SHA512

        8a2850f61af22a40ebb1e11c1d294cd74c94cf3b365619a4588bfbc54362575467cff4a5d75f685354b073453ad9892125739e78468a8dc550e52ccab88df47e

      • memory/1940-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

        Filesize

        4KB

      • memory/1940-1-0x0000000000C10000-0x0000000000CA2000-memory.dmp

        Filesize

        584KB

      • memory/1940-2-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

        Filesize

        9.9MB

      • memory/1940-3-0x0000000000140000-0x000000000014E000-memory.dmp

        Filesize

        56KB

      • memory/1940-4-0x0000000000150000-0x000000000015C000-memory.dmp

        Filesize

        48KB

      • memory/1940-11-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

        Filesize

        9.9MB

      • memory/2796-15-0x0000000000E40000-0x0000000000ED2000-memory.dmp

        Filesize

        584KB