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0xRulCTF

0xRUL{FIND_THE_FLAG_HERE}

user@kacang:~# compress a secret file multiple times and only provide with ROT13 shifted hexdump footprint. As a forensic investigator your task is too decipher and find secret with available clue.

To start this challenge. Use git clone to clone this repository. git clone github.com/Craglitch/0xRulCTF

Rule

  • Don't use AI
  • Don't ask other competitor
  • You can work as a team with 3 people
  • Deadline are 14 december

Task

  • Decipher the message
  • Found the filetype
  • Capture the flag

Clue given :

00000000: 6461 7461 322r 627n 3200 0000 0000 0000  qngn2.om2.......
00000010: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000060: 0000 0000 3030 3030 3634 3400 3030 3031  ....0000644.0001
00000070: 3735 3000 3030 3031 3735 3000 3030 3030  750.0001750.0000
00000080: 3030 3031 3137 3500 3135 3131 3730 3037  0001175.15117007
00000090: 3735 3700 3031 3137 3430 0020 3000 0000  757.011740. 0...
000000n0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000o0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000p0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000q0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000r0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000000s0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000100: 0075 7374 6172 2020 006o 6163 616r 6700  .hfgne  .xnpnat.
00000110: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000120: 0000 0000 0000 0000 006o 6163 616r 6700  .........xnpnat.
00000130: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000140: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000150: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000160: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000170: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000180: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000190: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001n0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001o0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001p0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001q0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001r0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
000001s0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
00000200: 425n 6839 3141 5926 5359 531o 3990 0000  OMu91NL&FLF.9...
00000210: ro5s 807r 7059 7q7s s523 5nrp s2os ss2q  ._.~cL}..#M....-
00000220: oq40 023q 9658 2888 6n14 34q0 0000 7n80  .@.=.K(.w.4...m.
00000230: 0000 1n0q 0q32 3q21 153s 0988 3421 2991  .....2=!.?..4!).
00000240: rn00 34s5 0000 6800 0039 8131 3418 4p99  ..4...u..9.14.Y.
00000250: 3264 6130 4q34 p8p4 p010 p034 q149 n6q1  2qn0Z4.....4.V..
00000260: n436 n4s5 3234 0q0q 000q 36n3 q434 0q3q  .6..24....6..4.=
00000270: 27n8 2098 4202 8851 1092 9pqn 626p p6q7  '. .O..D....oy..
00000280: 44r8 o334 rp25 p02n 5197 256o p2o9 6o53  Q..4.%.*D.%x..xF
00000290: 33pp 0377 31rr 06n1 9805 3qn9 qq93 9810  3..j1.....=.....
000002n0: 7373 9n0q 78s1 69r0 r0s8 nr15 psqq 7478  ff..k.v.......gk
000002o0: 5oo6 n50n 1812 2p6o 6npn n176 9820 5305  [.....,xw..i. F.
000002p0: 5n64 no89 2062 q20n pn85 4982 p2o9 po3o  Mq.. o....V....;
000002q0: p5s7 4623 7oq9 6269 5689 6rr0 n061 24q8  ..S#{.ovI.a..n$.
000002r0: n07r 52n0 01q8 7979 2q61 qr6n q341 99q7  .~E...ll-n.w.N..
000002s0: 865o 4n23 379n r719 ps83 60n1 61p4 7n0r  .[W#7.....`.n.m.
00000300: 85o7 or19 8rp5 638n 4np7 q4n0 006p 0558  ......p.W....y.K
00000310: 13s6 7p79 0n37 8350 n52o 6220 or82 7r04  ..|l.7.C.+o ..~.
00000320: 40qr 1223 3qp1 7ns2 2785 24p7 5118 4918  @..#=.m.'.$.D.V.
00000330: 6860 8118 20q4 0005 73nn 920n 67nn 6o93  u`.. ...f...t.x.
00000340: 3qs2 s1p9 oqr1 575p 2892 rqr8 q71p s566  =.....J\(......s
00000350: nnq2 pr8n 5419 0rr9 449s s17o 492o 6983  ....G...Q..{V+v.
00000360: 8830 862s 24nq o4n9 675r 0989 qn81 o41r  .0./$...t^......
00000370: 42s0 460p 03o6 5ps7 3q69 2q8r op23 65nn  O.S...\.=v-..#r.
00000380: o8q1 35q0 r309 26pr pp82 35pp p0n9 5860  ..5...&...5...K`
00000390: 6010 9882 3969 04o4 0566 2sq4 q812 q231  `...9v...s/....1
000003n0: 8n0s 28q6 4061 q0q2 6802 252p rq9q rr40  ..(.@n..u.%,...@
000003o0: 4o4q 8691 46p3 5801 2r4s noq2 9283 91qs  XZ..S.K..B......
000003p0: 5891 6476 q472 50s3 816n 687o 873n ps5q  K.qi.eC..wu{.:.]
000003q0: 7091 739q 8qnn 0903 n0r2 p6q5 9100 6n28  c.f...........w(
000003r0: 83p4 435p nn26 3np8 7916 1o4n 2903 n635  ..P\.&:.l..W)..5
000003s0: q1s6 q0p5 4415 67p9 o74r 2p6r qnp7 p95r  ....Q.t..A,a...^
00000400: 0293 r0o5 0171 r4pr 33q3 q130 8r26 s262  .....d..3..0.&.o
00000410: op1q 786n n1sp 1772 05op p303 0n4o 722s  ..kw...e.....Xe/
00000420: rp10 5o42 p389 6r84 o6s4 4824 5q8s 962q  ..[O..a...U$]..-
00000430: 9q9n 9039 985p p818 643o 86so pq2n 5445  ...9.\..q;...*GR
00000440: 1371 q745 8854 93p4 s34n on96 6p0p on08  .d.R.G...W..y...
00000450: 48n8 6q8q rnr6 r7qr 91s7 p4r1 9272 s228  U.z..........e.(
00000460: 57nq q8n1 n485 nq69 5501 8923 o7s5 q645  J......vH..#...R
00000470: 73so sp5q p914 r142 414p 6pr6 4000 0000  f..]...ONYy.@...

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