General

  • Target

    58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c.bin.sample

  • Size

    94KB

  • Sample

    211022-svh22abgf3

  • MD5

    73de5babf166f28dc81d6c2faa369379

  • SHA1

    e393a9ecf0d0a8babaa5efcc34f10577aff1cad1

  • SHA256

    58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c

  • SHA512

    d1a473ce9af849820b8cc9d777478e2a69293f3471ee3120f9ca96c43af922e0d661048d2d36688a62a63aa185728f83ee32f5a67ddcc0d1633c5bfe46c5ea51

Malware Config

Extracted

Path

C:\odt\C84F5-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .c84f5 -- 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: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_c84f5: uMsMYFsYIBnrzmf6+u2aDiEAl/AHDxDgG37vIR8PhsZ+/ebYu+ 02wKgFt9+rRb9StiZjApAkMOWi+j+mgi2V3pLAeKmbecN/+xVf NK79JF/NMAkt/Mz18hNxSx40IsVmJtDG5HOJPdBbVkw+zrL18f Mw2WlbMLGkRi6D/meqq+jcgKA7pV6uJSpYwcs+9EbACSrNwg7I 1HyCiTqYm25BODjyEqYuC2DQXW2z8CaqQuoktm9mibnII9qPP5 HnI5N2gYWkpfOjOVj2J9bWa1KUxbfk+ts=}
Emails

kkeessnnkkaa@cock.li

hhaaxxhhaaxx@tuta.io

Extracted

Path

C:\C84F5-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .c84f5 -- 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: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_c84f5: uMsMYFsYIBnrzmf6+u2aDiEAl/AHDxDgG37vIR8PhsZ+/ebYu+ 02wKgFt9+rRb9StiZjApAkMOWi+j+mgi2V3pLAeKmbecN/+xVf NK79JF/NMAkt/Mz18hNxSx40IsVmJtDG5HOJPdBbVkw+zrL18f Mw2WlbMLGkRi6D/meqq+jcgKA7pV6uJSpYwcs+9EbACSrNwg7I 1HyCiTqYm25BODjyEqYuC2DQXW2z8CaqQuoktm9mibnII9qPP5 HnI5N2gYWkpfOjOVj2J9bWa1KUxbfk+ts=}Hi! Your files are encrypted. All encrypted files for this computer has extension: .c84f5 -- 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: 1.kkeessnnkkaa@cock.li 2.hhaaxxhhaaxx@tuta.io Don't forget to include your code in the email: {code_345f15fb_c84f5: uMsMYFsYIBnrzmf6+u2aDiEAl/AHDxDgG37vIR8PhsZ+/ebYu+ 02wKgFt9+rRb9StiZjApAkMOWi+j+mgi2V3pLAeKmbecN/+xVf NK79JF/NMAkt/Mz18hNxSx40IsVmJtDG5HOJPdBbVkw+zrL18f Mw2WlbMLGkRi6D/meqq+jcgKA7pV6uJSpYwcs+9EbACSrNwg7I 1HyCiTqYm25BODjyEqYuC2DQXW2z8CaqQuoktm9mibnII9qPP5 HnI5N2gYWkpfOjOVj2J9bWa1KUxbfk+ts=}
Emails

kkeessnnkkaa@cock.li

hhaaxxhhaaxx@tuta.io

Targets

    • Target

      58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c.bin.sample

    • Size

      94KB

    • MD5

      73de5babf166f28dc81d6c2faa369379

    • SHA1

      e393a9ecf0d0a8babaa5efcc34f10577aff1cad1

    • SHA256

      58e923ff158fb5aecd293b7a0e0d305296110b83c6e270786edcc4fea1c8404c

    • SHA512

      d1a473ce9af849820b8cc9d777478e2a69293f3471ee3120f9ca96c43af922e0d661048d2d36688a62a63aa185728f83ee32f5a67ddcc0d1633c5bfe46c5ea51

    • Detected Netwalker Ransomware

      Detected unpacked Netwalker executable.

    • Netwalker Ransomware

      Ransomware family with multiple versions. Also known as MailTo.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Deletes itself

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Impact

Inhibit System Recovery

2
T1490

Tasks