Overview

overview

10

Static

static

10

74fd9bbdd8...in.exe

windows7_x64

10

74fd9bbdd8...in.exe

windows10_x64

10

Analysis

  • max time kernel
    76s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    74fd9bbdd8a484640e4b0405a1da84734a0a9c2604ac1b0a39fa2e28b0c12614.bin.exe

  • Size

    69KB

  • MD5

    5f55ac3dd18950583dadffc1970745c5

  • SHA1

    6a13535190bdcd62af6b4930ea28664c13c6a6be

  • SHA256

    74fd9bbdd8a484640e4b0405a1da84734a0a9c2604ac1b0a39fa2e28b0c12614

  • SHA512

    0839dfa13d2fa8752b032ccdb57c15533785724226a156e6c3befb0209a5d5ea8282217f7737ce9b3d6566f3c47abba6586c922063f3ca1fefa267b228f6b062

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\odt\20C895-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\ProgramData\regid.1991-06.com.microsoft\20C895-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\Program Files\VideoLAN\VLC\lua\http\20C895-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .20c895 -- 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_20c895: Vz6anbWaoIPTzlk3YBXGSCMjwXmf90WwDsYGgexGzlQUFKhaWn aTp+nNtGbNgtnngNxrAr1wfAzr2YDKXDPCPuxzf8TwumN/hq4K /hkYFsVSVtZmAbY9+38IocbJzM/Hr0wlzvhIGfJJSkHM2VGjEK cb48URWz/Hccjf8ctW4hG9mZFmj2ceAErBt7H1xh5v2ntpWmGC DI4OB6jvm9BxXn1Gz8VQISSzHsKD6y9Xus1yOximDTcjNN1GIO cnDR0Z6lLe6fzysYbLcwlfgS6PzPN2cEPuKzsqPQ==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Signatures

  • Netwalker Ransomware

    Ransomware family with multiple versions. Also known as MailTo.

    ransomwarenetwalker
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Modifies service 2 TTPs 5 IoCs
    persistence
  • Drops file in Program Files directory 17174 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 17215 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74fd9bbdd8a484640e4b0405a1da84734a0a9c2604ac1b0a39fa2e28b0c12614.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\74fd9bbdd8a484640e4b0405a1da84734a0a9c2604ac1b0a39fa2e28b0c12614.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3008
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:2456
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\20C895-Readme.txt"
      2⤵
        PID:1484
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\5E5D.tmp.bat"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1352
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 3008
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4552
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:8652

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Privilege Escalation

    Defense Evasion

    File Deletion

    2
    T1107

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    2
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\5E5D.tmp.bat
      MD5

      9af692736d64106fcee7a668a237e79f

      SHA1

      49211db8136b589c3edc1303984f307124e750fd

      SHA256

      09330e39130e0713ee9fcc7ff2794156884eff50140bd055628e12cb128e3839

      SHA512

      d83a988614382d70d4a0c2c8c0919c31c9919399dfc011c54c621cf9bb8da53b1c659877bb8c1578d6a8042731eb291f16c9e9721891bd1b5052a2609ae204e1

      Download Submit
    • C:\Users\Admin\Desktop\20C895-Readme.txt
      MD5

      1a94f3e56d6aacf61543337fc6f488d8

      SHA1

      c223ae916eadf824ba9f04360d957091fdf7c3b6

      SHA256

      081a843a0187a45e6d26dccf2774970a317ef1b29dd6dcdc68a3a1a789d85bf8

      SHA512

      d086315cf00f840ad5b24501380f3a98d835c7ca8e0ed02b3d2ccb219a964837fda1ee96b1d131b617c79e0bbdf1bed2f0e433c3ea7ea360c66f0c9cd087b469

      Download Submit
    • memory/1352-2-0x0000000000000000-mapping.dmp
      Download
    • memory/1484-1-0x0000000000000000-mapping.dmp
      Download
    • memory/2456-0-0x0000000000000000-mapping.dmp
      Download
    • memory/4552-4-0x0000000000000000-mapping.dmp
      Download