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trustedman / Mifare-Classic-1k---Money-Read-HELP-ME

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Mifare-Classic-1k---Money-Read-HELP-ME #1

Open trustedman opened 3 years ago

trustedman commented 3 years ago

Well guys, how are you?

I need help to find the exact value of money for this Mifare Classic 1k card. I already discovered the keys of the 15 sectors and to my surprise there are 2 lines of values ​​that are in sector 0.

I don't just want to clone, I want to learn how to find the exact value as I said and be able to make regridges.

WhatsApp Image 2020-11-22 at 09 59 50

WhatsApp Image 2020-11-23 at 12 07 13

ikarus23 commented 3 years ago

Well, it is yellow. Yellow means "Value Block". you can decode value blocks by pressing the menu (3 dots top right) and select "Value Blocks as Int."

ikarus23 commented 3 years ago

Read the MIFARE Classic datasheet if you want to know how value blocks work.

trustedman commented 3 years ago

Thank u for helpe me.. and sorry for "spam" I will delete the other issue.

Yes, and how this number ( 2147482589 ) will help me to get the exact value ?? In this card have $28,95 in money

Thank you for the tip, I will read about.

WhatsApp Image 2020-11-24 at 16 13 15

ikarus23 commented 3 years ago

Interesting. This looks more like counter. I don't think the money is stored there. Maybe it is in another sector? 28,95 = 2895 = 0x0B4F. Have you seen the value "0B4F" somewhere?

trustedman commented 3 years ago

Yes, I agree with u. Look this 2 Dumps and compare..

+Sector: 0 - $33,90 E5E80AC2C50804006263646566676869 DEFBFF7F21040080DEFBFF7F00FF00FF - Value block DFFBFF7F20040080DFFBFF7F00FF00FF - Value block 7B296F353C6BE69871CBC592B3A32380

After using $4,95

+Sector: 0 - $28,95 E5E80AC2C50804006263646566676869 DDFBFF7F22040080DDFBFF7F00FF00FF - Value block DEFBFF7F21040080DEFBFF7F00FF00FF - Value block 7B296F353C6BE69871CBC592B3A32380

I dont found 0B4F :(

All the $28,95 dump..

+Sector: 0 E5E80AC2C50804006263646566676869 DDFBFF7F22040080DDFBFF7F00FF00FF DEFBFF7F21040080DEFBFF7F00FF00FF 7B296F353C6BE69871CBC592B3A32380

+Sector: 1 F1FF020040D6E87B0000000000000000 00000000000000000000C0110437C2C0 F6AB243B000000000000949D1184FDB1 3FA7217EC575F0FF00FEB17A8968D4EC

+Sector: 2 02C80CB30B0D7436278007800720C3EC 42C82C08407400000040EFFBF4FFFFFF FFFFFFFFFFFFFFFFFFFF6C73F7D352B4 3FA7217EC575F0FF00FEE1255CEAFDEA

+Sector: 3 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B603F0FF00FE63508EB64603

+Sector: 4 120000000000000000B05F3B3A3100D0 C5FE0482790C973340033800C3ECC200 C0BDF0900C1604000000005E2C087B05 37DC29F80D81F0FF00FEC6179F4A80B5

+Sector: 5 220000000000000000B05F3B3A4100D0 84380182A70C003200000080A97C9700 8DBE00DC0B0B00000000003EBB7C5352 CBD70D8CA728F0FF00FEB57FC4A4B094

+Sector: 6 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B606F0FF00FE63508EB64606

+Sector: 7 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B607F0FF00FE63508EB64607

+Sector: 8 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B608F0FF00FE63508EB64608

+Sector: 9 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B609F0FF00FE63508EB64609

+Sector: 10 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B60AF0FF00FE63508EB6460A

+Sector: 11 02C80A736F0C91BE2440064006A0C2DC 1BC82A08407400000040F0FBF4FFFFFF FFFFFFFFFFFFFFFFFFFF96208380DF5B 3FA7217EC575F0FF00FEE1255CEAFDEA

+Sector: 12 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B60CF0FF00FE63508EB6460C

+Sector: 13 120000000000000000B05F3B3A3100D0 C5FE0482790C973340033880C2DC9B00 C0BD00AE0C1504000000009B1468BC7B 37DC29F80D81F0FF00FEC6179F4A80B5

+Sector: 14 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 F630FC46B60EF0FF00FE63508EB6460E

+Sector: 15 220000000000000000B05F3B3A4100D0 84380182A70C003200000080A97C9700 8DBE00DC0B0B00000000003EBB7C5352 CBD70D8CA728F0FF00FEB57FC4A4B094

Only the sectors below have a change when I use the balance

sector 0 sector 2 sector 4 sector 11 sector 13

ikarus23 commented 3 years ago

Wow. A lot of stuff changed. I never saw a system with so much changes just by one purchase. I don't see the balance. I think you have to collect more data. Maybe multiple small purchases within a small time frame (with a dump after each purchase).

trustedman commented 3 years ago

Yes man, a lot changes :( I never saw the balance too, in hex or decimal.. But ok, thank you help me. I will try make 2 charges and dumps, for me to see what changes will occur after the balance is recharged on the card and do what you said too <3