netwalker | d68ec0df2b057387bbd78a51054f7c06bdf029337bf9d66c1d411ba0243b2ae5

General

Target

2025-01-22_12448b9b16e1c3a907f669ff5906046d_babuk_mailto
Size

82KB
Sample

250122-y5ltkavlar
MD5

12448b9b16e1c3a907f669ff5906046d
SHA1

264a5f682001eae793103023f35b0a865b48d25b
SHA256

d68ec0df2b057387bbd78a51054f7c06bdf029337bf9d66c1d411ba0243b2ae5
SHA512

58870722418a14fbc86062979b8b93fc9aa31848b03217fc7534b6bd9d03383de5ad338cd75376f8bbee378f38d5e473364429cf8bc631a5125e5e65314b7be3
SSDEEP

1536:yoF+QbXFzvL4ZwxY/ic0ty2XGf0s7pBZWNFMSZs1:yiFF7Loxt0tyAGf0sN5S2

Score

10^/10

Malware Config

Extracted

Path

C:\ProgramData\Microsoft Help\F3D3-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted. All encrypted files for this computer has extension: .f3d3 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Contact us: [email protected] [email protected] Don't forget to include your code in the email: {code_f3d3:cjYm65yk46MOZSPnZSrhXva6LNba60uVjCQkhPjO/Lpd0QzHig ao2Vq3uqExve0jNYk5X0ImQLUZoAYXQxcouAwuIaf0iagojuev +ilSr0OSazFKOEA0qwNRwGdi/uRxlhjolrTDbNFp1XchMCtIVS Wqvj8tBwCrDvxz314SwTK3n6IhABx8c01xEQQWhfUppwqD8n4y EuwZ7sVo67BIHenS6yT/pBW6a1ZpGpmtYxElIsCuoW2tFhClmE /3PWaLIRHiDu6FCSYSbgbFF2XYQjF8dQ==}

Emails

[email protected]

Extracted

Path

C:\Users\Admin\Searches\4D33-Readme.txt

Family

netwalker

Ransom Note

Hi! Your files are encrypted. All encrypted files for this computer has extension: .4d33 -- If for some reason you read this text before the encryption ended, this can be understood by the fact that the computer slows down, and your heart rate has increased due to the ability to turn it off, then we recommend that you move away from the computer and accept that you have been compromised, rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you, it could be files on the network belonging to other users, sure you want to take that responsibility? -- Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help. The only way to get your files back is to cooperate with us and get the decrypter program. Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover. We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned. For us this is just business and to prove to you our seriousness, we will decrypt you some files for free, but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision. Contact us: [email protected] [email protected] Don't forget to include your code in the email: {code_4d33:/ymFE3Ty86+vYFtWnfNUA5hZLcgjR2pBn5TnP8uh3l49HBFuM0 3xCkjzY+HOCwtuRqDH5Spd9xrGRPYRjq5mK9RcCBNfU9MXjuev +gjjxGamlbrfBDqP1HLYqu0DVd8dDLFBNPLVdUmZWF2Vc3a+Fi suh98OvHlCudkEiqah0DyIXAsFFMJ6vuDl6wn73k+1uZBCiFZG 5bclb1qYgLCWCy/uPJiaTMNdy0Qci+aXEs4QOTRCwZ/bMof/nE KHuDgJQ0SycE/2kGCRQGzL2We5A575HQ==}

Emails

[email protected]

Targets

- Target
  
  2025-01-22_12448b9b16e1c3a907f669ff5906046d_babuk_mailto
- Size
  
  82KB
- MD5
  
  12448b9b16e1c3a907f669ff5906046d
- SHA1
  
  264a5f682001eae793103023f35b0a865b48d25b
- SHA256
  
  d68ec0df2b057387bbd78a51054f7c06bdf029337bf9d66c1d411ba0243b2ae5
- SHA512
  
  58870722418a14fbc86062979b8b93fc9aa31848b03217fc7534b6bd9d03383de5ad338cd75376f8bbee378f38d5e473364429cf8bc631a5125e5e65314b7be3
- SSDEEP
  
  1536:yoF+QbXFzvL4ZwxY/ic0ty2XGf0s7pBZWNFMSZs1:yiFF7Loxt0tyAGf0sN5S2
Score

10^/10

netwalker defense_evasion discovery execution impact persistence ransomware
- Detected Netwalker Ransomware
  Detected unpacked Netwalker executable.
- Netwalker Ransomware
  Ransomware family with multiple versions. Also known as MailTo.
  ransomware netwalker
- Netwalker family
  netwalker
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Renames multiple (207) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Deletes itself
- Adds Run key to start application
  persistence
- Suspicious use of SetThreadContext
behavioral1 behavioral2