Resubmissions

15-10-2020 13:59

201015-d11m2zjdgs 10

13-03-2020 03:32

200313-8w7dt2yb5n 9

General

  • Target

    IRSdeclaration‮cod.exe

  • Size

    282KB

  • Sample

    201015-d11m2zjdgs

  • MD5

    fe3fd53ddc7c229b1150d970a05947c0

  • SHA1

    3abeddbbbd29310290955cc7c1a895550c92ab96

  • SHA256

    c414bbb789af8e3fb93b33344b31f1991582ec0f06558b29a3178d2b02465c72

  • SHA512

    8b94e67f48f90d7a0e463a7623ba6f87a5f4108f33587c8f579f29aa3c9b0a22f7e134470824d25dccb552bfc868b18cd3f05ef09aaceef2bab6984c21f203b4

Malware Config

Extracted

Path

C:\ProgramData\Package Cache\{f4220b74-9edd-4ded-bc8b-0342c1e164d8}\FD6F5D-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\Microsoft Office\MEDIA\OFFICE14\LINES\FD6F5D-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\Microsoft Office\MEDIA\CAGCAT10\FD6F5D-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .fd6f5d -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_fd6f5d: l/Fk05gcV+GUCD0bIg74onLdc73bTB+ghYzoOM0ZflBrMzLu5v kpJgWgMRHgrxJjbeMMAeLd5IOLqdZsGGy8UhMYDlQFiNVv41Zj AnXAqEjZ8Oh8YjoNP8jnZUX15sWv5bzR1agHdKgTgy2ewzcErN bj3a1GUySmish9GBUpQrFNit8yElCXlv3BAf1Gl/qP4hIzZByi IXxk+WIarjMQXdGJEoolV2MtDSCl4e2QD68L7o74z05Z6qD4Gu +MUXV+mvfVfOpwNM3QsgkN/hJ2SvaatSnhQVteXA==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\5138E8-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Users\All Users\Microsoft\Search\Data\Applications\Windows\5138E8-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\5138E8-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .5138e8 -- 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: rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion 3.Put your personal code in the input form: {code_5138e8: Xc5zSrtrA6QNffbGlMQ+siLG0O/0MCA2nxYcN14r4dggoI+yPr KbXcVFX9JGddBFzhp8tqtLcajb2ON/lvUFdxka3xBWAX9a41Zj AnVTWgB7qIQl9QczCSHu4vK3GwTTy5H1i0QEJTT4zNZVy1a4Tg 7PzFb1hqdBzmFpMR23ezvZoxBFDLcBPyiuZTEtqgC3hsbndUkF 5/Lr3FaHkLpvOEzZ9N2nk5iS0l3iiGSaXcwYrdT4UsWjooI7dQ 00us+4l4ppWqEPYBl83jH9n+E7hwpAKYe+VEjaRg==}
URLs

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Targets

    • Target

      IRSdeclaration‮cod.exe

    • Size

      282KB

    • MD5

      fe3fd53ddc7c229b1150d970a05947c0

    • SHA1

      3abeddbbbd29310290955cc7c1a895550c92ab96

    • SHA256

      c414bbb789af8e3fb93b33344b31f1991582ec0f06558b29a3178d2b02465c72

    • SHA512

      8b94e67f48f90d7a0e463a7623ba6f87a5f4108f33587c8f579f29aa3c9b0a22f7e134470824d25dccb552bfc868b18cd3f05ef09aaceef2bab6984c21f203b4

    • 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.

    • Deletes itself

    • Reads user/profile data of web browsers

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

    • Modifies service

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

2
T1490

Tasks