Analysis

  • max time kernel
    118s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/03/2024, 08:08

General

  • Target

    c8205c7edb79709dcb77038e4af160f2.dll

  • Size

    502KB

  • MD5

    c8205c7edb79709dcb77038e4af160f2

  • SHA1

    c3c935956c0aefc7899e51696829ebbbf5596be6

  • SHA256

    515b3103786959194f8dfdcb9abf2c93b84d0977f04b61a084eb73f12d64657c

  • SHA512

    ffb30430b27f96332321475b2a4b11d87318ad4ea672ab6854b3194f9aee2a6bb9d0aee7e3cdc54bc3b8c6c2d842193a67bd5c4b900eabc75afd2e02d052fc27

  • SSDEEP

    6144:jhlE9IW+WQyKL8ze3iWVGxt5Qr8euxvzj0dmKcAnNkwlMac85yDhJK1wkS5Dqy:FHmP2ZVmQrnuSpcAnNnMIy/1D3

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8205c7edb79709dcb77038e4af160f2.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2092
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c8205c7edb79709dcb77038e4af160f2.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2588
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2960
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 164
          4⤵
          • Program crash
          PID:2456
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2588 -s 240
        3⤵
        • Program crash
        PID:1444

Network

        MITRE ATT&CK Matrix

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\~TM6104.tmp

          Filesize

          1.2MB

          MD5

          d124f55b9393c976963407dff51ffa79

          SHA1

          2c7bbedd79791bfb866898c85b504186db610b5d

          SHA256

          ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

          SHA512

          278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

        • \Users\Admin\AppData\Local\Temp\~TM61A1.tmp

          Filesize

          1.1MB

          MD5

          9b98d47916ead4f69ef51b56b0c2323c

          SHA1

          290a80b4ded0efc0fd00816f373fcea81a521330

          SHA256

          96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

          SHA512

          68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

        • \Windows\SysWOW64\rundll32mgr.exe

          Filesize

          270KB

          MD5

          9d98badfb96f1384ecd059e89fb2d1fe

          SHA1

          239094afbb8ccaddef0493ceea50469a87cd254c

          SHA256

          7837455eaec625be70922a22405cecfe9f0def2204fa4746337999b61403aace

          SHA512

          7d04faeea61bdbd39f5bf67a31f6ca1276031e98c4eac099a4d65281cac205a6e309c7006c8f364ae97e378628dda55a1389c87f9222ddbafba4292320f76b52

        • memory/2588-2-0x0000000075120000-0x00000000751A2000-memory.dmp

          Filesize

          520KB

        • memory/2588-5-0x00000000006F0000-0x00000000007F9000-memory.dmp

          Filesize

          1.0MB

        • memory/2588-0-0x00000000751B0000-0x0000000075232000-memory.dmp

          Filesize

          520KB

        • memory/2588-1-0x0000000075120000-0x00000000751A2000-memory.dmp

          Filesize

          520KB

        • memory/2960-18-0x0000000077AC0000-0x0000000077AC1000-memory.dmp

          Filesize

          4KB

        • memory/2960-13-0x00000000001D0000-0x00000000001D2000-memory.dmp

          Filesize

          8KB

        • memory/2960-16-0x0000000077ABF000-0x0000000077AC1000-memory.dmp

          Filesize

          8KB

        • memory/2960-11-0x0000000000400000-0x0000000000509000-memory.dmp

          Filesize

          1.0MB

        • memory/2960-19-0x0000000077AC0000-0x0000000077AC2000-memory.dmp

          Filesize

          8KB

        • memory/2960-9-0x0000000000400000-0x0000000000509000-memory.dmp

          Filesize

          1.0MB

        • memory/2960-22-0x0000000000400000-0x0000000000509000-memory.dmp

          Filesize

          1.0MB

        • memory/2960-24-0x0000000076BA0000-0x0000000076CB0000-memory.dmp

          Filesize

          1.1MB

        • memory/2960-23-0x0000000076BA0000-0x0000000076CB0000-memory.dmp

          Filesize

          1.1MB

        • memory/2960-25-0x0000000076BA0000-0x0000000076CB0000-memory.dmp

          Filesize

          1.1MB