General

  • Target

    ffabb87c3fe025f93c3140c73685388d966f168077ac0e86a9499c9c97c77ba9

  • Size

    69KB

  • Sample

    220201-bnc4rsefcl

  • MD5

    a7574cc419d469f9ad3548189e9abdb4

  • SHA1

    06a2cb118c0e1de5384de855901807495cfb94eb

  • SHA256

    ffabb87c3fe025f93c3140c73685388d966f168077ac0e86a9499c9c97c77ba9

  • SHA512

    18ed7e45b9b6a97e05d283564171b2e37c0219ecf92152bb5721a182562272776f2615c41a1a62912c17f087141abe680d1313bfd2a9fb6e7099f144f0e3de30

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\Search\Data\Applications\Windows\Projects\SystemIndex\SecStore\C79F45-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .c79f45 -- 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. -- Our encryption algorithms are very strong and your files are very well protected, 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 decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_c79f45: 27jwyRpxUo2TcdwimAUHUcynvnnz/5ewblpRe89+JSGb696Cdd SnK1KFADn+S9nOl/FdZzZ4PKYdj//nBOXFS50ziiMN8vUZWSbo y5DIkX0YcLn3Og6e+/v0tHYRtU3n24BixGoWINobTDaaC+uTE3 uLhTW8IRsmAbNM/wNvCmgNxH2Rm41dddLifH0xqDRFBwPLs+Dl JzTtyi/Rx8Mb5VesgKb0N+fijnR2/+im17sR9Ynbzf3B5AiUGV +xUGDYROU4VWiFXc9qgZ2OJs3Bb4jJ5O5EnRYjsw==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\ProgramData\Microsoft\User Account Pictures\5F31EA-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5f31ea -- 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. -- Our encryption algorithms are very strong and your files are very well protected, 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 decrypter program, you may damage them and then they will be impossible to recover. For us this is just business and to prove to you our seriousness, we will decrypt you one file for free. Just open our website, upload the encrypted file and get the decrypted file for free. -- Steps to get access on our website: 1.Download and install tor-browser: https://torproject.org/ 2.Open our website: pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion If the website is not available, open another one: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5f31ea: eZswDvY4lmis4VENtEbs7JmTc3tSuE6UJZKq8opdWF8+1l7QCR 0UjiR6Kyzx4zx8Xbql9okEAZFiFKxaoURFXZwatwx+TMkcWSbo y6FjR+c5+bBbvleyzq9dehicm+puP38tljf16FyDCpHwhGac+a 6eNmpJawnJriIYP74Y3yW7Meqlf6DBDSZRt5NceDQlrr26Qa9K 1sL40LZq6s1ZmLdjA4mfcfmNqTFuQePUHIblO3bbDTJlcHRYfY doRnfPN9/pvlPnkGf+X250wPqm/u67me9dYE0rvA==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      ffabb87c3fe025f93c3140c73685388d966f168077ac0e86a9499c9c97c77ba9

    • Size

      69KB

    • MD5

      a7574cc419d469f9ad3548189e9abdb4

    • SHA1

      06a2cb118c0e1de5384de855901807495cfb94eb

    • SHA256

      ffabb87c3fe025f93c3140c73685388d966f168077ac0e86a9499c9c97c77ba9

    • SHA512

      18ed7e45b9b6a97e05d283564171b2e37c0219ecf92152bb5721a182562272776f2615c41a1a62912c17f087141abe680d1313bfd2a9fb6e7099f144f0e3de30

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

2
T1107

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks