Your dd command is simply copying 512 bytes to the output file. If you want a hash, you need to pipe it into a hash function such as:
dd if=\\?\Device\HarddiskVolume11 bs=512 count=1 | md5sum
For example on my Linux machine (with normal slashes instead of Windows backslashes):
dd if=/dev/sdb bs=512 count=1 | md5sum
1+0 records in
1+0 records out
512 bytes copied, 0.00163753 s, 313 kB/s
5b31a7aa24ccde6a44083cb30e33db4d
-------- edit --------
I see; you are trying to get a volume header not produce a hash.
First you need to make sure you're viewing data in a consistent manner. I'm not sure what Windows commands and tools you have available, but I suggest you display your data in a canonical format. One way is by piping your data to hexdump, for example:
dd if=veracryptcontainer bs=512 count=1 | hexdump -C
1+0 records in
1+0 records out
512 bytes copied, 0.0578936 s, 8.8 kB/s
00000000 21 09 b4 29 58 67 31 ca 22 f3 8f bb c9 65 33 63 |!..)Xg1."....e3c|
00000010 54 de 18 44 2e 95 2e 7b 74 6b cc 4a dd 80 77 8b |T..D...{tk.J..w.|
00000020 e8 c3 fb 5f ec 44 ea 67 1a de 9a 21 2a e9 06 c8 |..._.D.g...!*...|
00000030 bb 5a b8 c0 79 ad 66 c2 6b 51 03 03 8c ba 74 94 |.Z..y.f.kQ....t.|
00000040 96 de 57 8f 34 6b 65 e0 92 56 bf 14 71 0b 37 43 |..W.4ke..V..q.7C|
00000050 f3 dd d2 cd 06 aa 50 ee 46 20 c9 2d 55 4b a5 df |......P.F .-UK..|
00000060 73 cf a3 d3 a3 d3 b2 86 07 a0 d0 1b 4f ea 68 ce |s...........O.h.|
00000070 77 01 98 e0 5b ea e5 22 be ff 09 0b ef 6e f9 ce |w...[..".....n..|
00000080 c9 e6 6a 15 30 85 ff e5 bc 7b 5e b8 2f 35 f1 4a |..j.0....{^./5.J|
00000090 ac 1a 76 e5 33 e2 37 8d fd a0 b8 e5 ad e2 85 58 |..v.3.7........X|
000000a0 0f 8a 1a 42 85 f5 23 2b b9 be ef 8e a8 68 82 b0 |...B..#+.....h..|
000000b0 63 a5 91 1d 7c 74 b4 c9 bc 9f fe 4e a1 e8 63 17 |c...|t.....N..c.|
000000c0 af 77 0d 73 70 7d 27 12 a6 48 3d 82 bc e2 ba 08 |.w.sp}'..H=.....|
000000d0 be c5 2d 4a a9 86 d6 e6 1f 9c 5e da d1 0e c9 e6 |..-J......^.....|
000000e0 0b 94 47 df 3a 21 f3 73 3a d4 56 d3 a2 cb 0c de |..G.:!.s:.V.....|
000000f0 ca 20 64 bb f0 c9 1a f4 b4 a7 78 c1 d9 3a 85 7a |. d.......x..:.z|
00000100 51 f8 27 02 c6 4c f3 03 e1 69 b7 5f a2 9d 6f 10 |Q.'..L...i._..o.|
00000110 c2 dd ac 1f 39 5c 76 e6 44 15 f7 12 7c 25 42 6a |....9\v.D...|%Bj|
00000120 d9 68 91 2b b5 9b 79 be 70 c7 07 a4 97 2f 53 57 |.h.+..y.p..../SW|
00000130 1c 62 22 89 7a fd f0 66 e8 ce 4e 33 78 9a 6a 2c |.b".z..f..N3x.j,|
00000140 7d b3 d1 3a bc dd a7 2b bf 7a 5f ce 93 55 c7 2e |}..:...+.z_..U..|
00000150 41 b2 24 9e fe 94 17 8a 34 17 2f 8a 3b d0 b9 d1 |A.$.....4./.;...|
00000160 ca 6b 07 1f 3c 40 66 88 f9 38 b2 d1 2a 07 b3 01 |.k..<@f..8..*...|
00000170 10 3c a8 5a 8c 62 42 fa 37 df 4f 16 3d 73 f5 9d |.<.Z.bB.7.O.=s..|
00000180 08 3b 22 d0 a0 58 b7 fa f1 0c f8 0e 6f c0 eb ce |.;"..X......o...|
00000190 2f 7f a5 36 12 3f 14 52 28 97 c9 42 e3 71 66 81 |/..6.?.R(..B.qf.|
000001a0 92 90 6f 74 ee 42 df 49 1a 08 77 53 83 0c bc e2 |..ot.B.I..wS....|
000001b0 13 a5 76 49 96 50 b4 e2 66 17 95 b4 6f f4 7b 9b |..vI.P..f...o.{.|
000001c0 73 72 ae da ed 4e 2a 82 2d b4 7b c8 1d b4 f4 9e |sr...N*.-.{.....|
000001d0 8f f9 30 ee f1 50 db 3d bc 55 25 27 0b 62 78 15 |..0..P.=.U%'.bx.|
000001e0 bb 6b 9a f0 ac 3c e1 b4 e3 9f 00 8d 5e b3 aa bd |.k...<......^...|
000001f0 72 55 6c 2e c5 34 ff 48 4c 18 41 e2 2b ca 20 17 |rUl..4.HL.A.+. .|
00000200
Second cracking Veracrypt without knowing at least a targeted subset of candidate passwords is a mighty undertaking. Veracrypt non-system hash round counts defaults to a half million. On top of that it allows custom round counts.
The Veracrypt volume header structure is documented here: Veracrypt Volume Format
If you pull this off, please tell us!
---- Second Edit -----
I fired up a Windows VM and tried out "DD for Windows" which I had never used.
When you run dd --list, pay careful attention to the target device. Does it show more than one partition? I plugged in a simply FAT32 thumb drive with only a single partition but DD for Windows showed it as two partitions like this:
\\?\Device\Harddisk1\Partition0
link to \\?\Device\Harddisk1\DR2
Removable media other than floppy. Block size = 512
size is 4089446400 bytes
\\?\Device\Harddisk1\Partition1
link to \\?\Device\HarddiskVolume5
Removable media other than floppy. Block size = 512
size is 4089069568 bytes
Examining this in Linux with fdisk shows the start of the one and only partition is not zero. Apparently DD for Windows represents this offset as a partition.
The net result is that the difference in sizes of the two partitions divided by 512 is the skip=value you need for your dd command if you picked the raw device instead of the partition.