lordfantasy (OP)
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November 17, 2024, 09:57:19 PM |
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Hello Guys,
I have a pdf with a password, encrypted with 128 bits, I have no idea what the password is, I have already tested combinations of 8 characters mixed together with Hashcat, is there any other way to solve it, since it is a pdf?
Below is the encrypted hash.
$pdf$2*3*128*-32*1*16*77175c73c2b22c68fdca8f1f5a0c2251*32*e49c9ef76203e8d07a20104f866a88f700000000000000000000000000000000*32*0e2d089a59f0227dffa64340ca9d7d5abed9079010b83560e5799418a504621f
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Ambatman
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November 17, 2024, 10:37:17 PM |
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If you don't mind me asking who's the owner of the PDF? How are you sure that it's a combination of 8 characters and not 12? Since you brute forcing, You just have to keep going and maybe consider that the password might be complex or Longer. I think there are app for cracking PDFs but usually for one's with simple password.
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lordfantasy (OP)
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November 20, 2024, 04:14:03 PM |
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If you don't mind me asking who's the owner of the PDF? How are you sure that it's a combination of 8 characters and not 12? Since you brute forcing, You just have to keep going and maybe consider that the password might be complex or Longer. I think there are app for cracking PDFs but usually for one's with simple password.
The owner of the PDF is a client of my, he had an account with an exchange called aximetria, this exchange went bankrupt and sent him the encrypted PDF. He received the password via SMS on his cell phone, but he no longer has the number and has never seen it. I don't know how many characters the password is, I tried 1-8 characters at random with all the combinations according to my program and the hardware I have. Above 8 characters, for example 9 characters, all combinations are impossible to test. Also because the password can be more than 20 characters long. The strange thing is that usually passwords in pdfs are much simpler, as you said.
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boyptc
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November 20, 2024, 09:46:12 PM |
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He received the password via SMS on his cell phone, but he no longer has the number and has never seen it.
It's best to contact the cell provider or the telecom that he has registered with that number. He can ask an attorney for him to request that number back to him for important filing like this if ever the provider denies his request. There are too many tutorials about how to unlock PDF with a password without using one. But I doubt that none of them will actually work but instead will leave you some malware/virus as they require to download a software that's unknown.
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lordfantasy (OP)
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November 20, 2024, 09:55:16 PM |
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He received the password via SMS on his cell phone, but he no longer has the number and has never seen it.
It's best to contact the cell provider or the telecom that he has registered with that number. He can ask an attorney for him to request that number back to him for important filing like this if ever the provider denies his request. There are too many tutorials about how to unlock PDF with a password without using one. But I doubt that none of them will actually work but instead will leave you some malware/virus as they require to download a software that's unknown. I have already advised my client to contact a lawyer, I have some software to crack the pdf password, the problem is that the password is 8 characters too long, the processing power is unfeasible.
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boyptc
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November 21, 2024, 04:58:23 PM |
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He received the password via SMS on his cell phone, but he no longer has the number and has never seen it.
It's best to contact the cell provider or the telecom that he has registered with that number. He can ask an attorney for him to request that number back to him for important filing like this if ever the provider denies his request. There are too many tutorials about how to unlock PDF with a password without using one. But I doubt that none of them will actually work but instead will leave you some malware/virus as they require to download a software that's unknown. I have already advised my client to contact a lawyer, I have some software to crack the pdf password, the problem is that the password is 8 characters too long, the processing power is unfeasible. Find more in some other tech-focused forums maybe there have been folks that have done this in the past. Because it seems that you'll not get any help from anybody here even I, I don't know what to say further. So, I'd just say good luck.
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| | █████ █████ █████████ ████ ████████ ██████████████████████████ ████████████████████████████ ██████████████████████████████ ██████████████████████████████ ████████████████████████████ ████ ███████████████████████████ ███ █████ █████████████████████████ █████ ███████████████████████████████████ ████████████████████████████████ ███████████████████████ █████████████████████████ █████████████████████████ ███████████████████████ ██████████████████
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lordfantasy (OP)
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November 22, 2024, 01:24:24 AM |
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He received the password via SMS on his cell phone, but he no longer has the number and has never seen it.
It's best to contact the cell provider or the telecom that he has registered with that number. He can ask an attorney for him to request that number back to him for important filing like this if ever the provider denies his request. There are too many tutorials about how to unlock PDF with a password without using one. But I doubt that none of them will actually work but instead will leave you some malware/virus as they require to download a software that's unknown. I have already advised my client to contact a lawyer, I have some software to crack the pdf password, the problem is that the password is 8 characters too long, the processing power is unfeasible. Find more in some other tech-focused forums maybe there have been folks that have done this in the past. Because it seems that you'll not get any help from anybody here even I, I don't know what to say further. So, I'd just say good luck. I've already advised my client to go to a lawyer and file a lawsuit against the operator, I've actually tested all the possible combinations up to 8 characters and it didn't work. Sometimes luck isn't with us haha
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Vod
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November 22, 2024, 05:22:13 AM |
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is there any other way to solve it, since it is a pdf?
The key is the 128 bit encryption - it does not matter what is encrypted. How Secure is AES-128 Against Brute Force Attacks? AES processes 128 bits of input data at a time. Based on the substitution-permutation network, AES is a symmetric key. AES performs all its computations on bytes which means it treats the 128 bits of a block as 16 bytes. The bytes are processed as a matrix with 16 bytes organized into four columns and four rows. DES with a key size of 56 bits has been cracked using brute force attacks in the past. AES-128 is a 128-bit symmetric key that is computationally secure against brute force attacks. https://www.appsealing.com/aes-128-encryption/#:~:text=If%20you%20ask%20how%20long,AES%20for%20securing%20sensitive%20information.
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magistrator
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November 22, 2024, 08:31:20 AM |
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Have you solved the problems? It's really interesting.
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damnrancho
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November 22, 2024, 08:59:23 AM |
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Did you manage? Do you need more help? I have a man.
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Vod
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November 22, 2024, 09:26:02 AM |
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Did you manage? Do you need more help? I have a man.
You have a man that can try trillions of passwords a second, and do better than brute force/guessing?
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lordfantasy (OP)
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November 27, 2024, 02:38:14 AM |
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Did you manage? Do you need more help? I have a man.
You have a man that can try trillions of passwords a second, and do better than brute force/guessing? I've tried all the combinations with 8 characters, 9 characters upwards, I've run out of hardware.
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GrifffonEngine
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November 28, 2024, 10:29:40 AM |
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How did you solve the problem?
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Vod
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November 29, 2024, 11:41:42 AM |
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How did you solve the problem?
The problem has been solved with quantum cracking, but you won't be aware of the solution for about twenty years or so - less if someone looks directly at it. :/ Sarcasm means you don't understand how encryption works. 
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