Overview

overview

10

Static

static

10

0d0ed90929...in.exe

windows7_x64

10

0d0ed90929...in.exe

windows10_x64

10

Analysis

  • max time kernel
    90s
  • max time network
    36s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 20:17

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General

  • Target

    0d0ed90929351c08c47dbd7541073d037240718c4a2fd63c09d2377090d4cd7a.bin.exe

  • Size

    69KB

  • MD5

    63eb7712d7c9d495e8a6be937bdb1960

  • SHA1

    1897bcfc7f3d4a36bdd29da61e87ba00812dca24

  • SHA256

    0d0ed90929351c08c47dbd7541073d037240718c4a2fd63c09d2377090d4cd7a

  • SHA512

    049a2dc1c544a89673bcdca985ad1e42f168f65ff73267e2e0ac30ae992a8b21d375afb35882b512edc335bfdf44174fdbbf03b3451d5b2d405eceafd3e05497

Score
10/10
netwalkerpersistenceransomwarespyware

Malware Config

Extracted

Path

C:\ProgramData\Microsoft\MF\CE5F7B-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .ce5f7b -- 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_ce5f7b: V5SG/b4DaMYKptzYj39LDNNBQJ+7MKpCsaMGOHQrgX/tmKEiPF /xLGjRtfQ+wXKCYSGaAjGtYv77S5BuNanWKU6G807dxh8Vmifa dFPBcwRHBTCgWDp8djpQwKnF/e/ZcKQayVED27eQ0xMP5UEbIz 65lx3dh8Jzmp41JXX4l8KXolrYy9HftynvykZxR3UJINs2vJ++ S8xL2we/+YvhFqTU2spV0lnP8v4NeW5CcWOsGhcCktu5AgJZJG rMTqexkSBK74pzAhhn/sqqzir6MeIbBR9Jr5OZxg==}
URLs

http://pb36hu4spl6cyjdfhing7h3pw6dhpk32ifemawkujj4gp33ejzdq3did.onion

http://rnfdsgm6wb6j6su5txkekw4u4y47kp2eatvu7d6xhyn5cs4lt4pdrqqd.onion

Extracted

Path

C:\ProgramData\Microsoft\Search\Data\Applications\Windows\CE5F7B-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .ce5f7b -- 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_ce5f7b: V5SG/b4DaMYKptzYj39LDNNBQJ+7MKpCsaMGOHQrgX/tmKEiPF /xLGjRtfQ+wXKCYSGaAjGtYv77S5BuNanWKU6G807dxh8Vmifa dFPBcwRHBTCgWDp8djpQwKnF/e/ZcKQayVED27eQ0xMP5UEbIz 65lx3dh8Jzmp41JXX4l8KXolrYy9HftynvykZxR3UJINs2vJ++ S8xL2we/+YvhFqTU2spV0lnP8v4NeW5CcWOsGhcCktu5AgJZJG rMTqexkSBK74pzAhhn/sqqzir6MeIbBR9Jr5OZxg==}Hi! Your files are encrypted by Netwalker. All encrypted files for this computer has extension: .ce5f7b -- 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_ce5f7b: V5SG/b4DaMYKptzYj39LDNNBQJ+7MKpCsaMGOHQrgX/tmKEiPF /xLGjRtfQ+wXKCYSGaAjGtYv77S5BuNanWKU6G807dxh8Vmifa dFPBcwRHBTCgWDp8djpQwKnF/e/ZcKQayVED27eQ0xMP5UEbIz 65lx3dh8Jzmp41JXX4l8KXolrYy9HftynvykZxR3UJINs2vJ++ S8xL2we/+YvhFqTU2spV0lnP8v4NeW5CcWOsGhcCktu5AgJZJG rMTqexkSBK74pzAhhn/sqqzir6MeIbBR9Jr5OZxg==}
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 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Deletes itself 1 IoCs
  • 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 7497 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 12537 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0d0ed90929351c08c47dbd7541073d037240718c4a2fd63c09d2377090d4cd7a.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\0d0ed90929351c08c47dbd7541073d037240718c4a2fd63c09d2377090d4cd7a.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:1912
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1572
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\CE5F7B-Readme.txt"
      2⤵
        PID:3944
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c "C:\Users\Admin\AppData\Local\Temp\6B41.tmp.bat"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:5488
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 1912
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:7752
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:3360

    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\6B41.tmp.bat
      MD5

      77a5448d70fb57502fa67072bddfe6a1

      SHA1

      1de51c9eb142191cf9f91e8dc8cbd68a3e00cb3b

      SHA256

      60a266c9a829cb95d28275b1ba0541a0eee1b4a9ccb8cc0250970d7eeb5bb0fd

      SHA512

      ef13d805410dd215fe6651e148928ffddd98b4571560aaeba8cf78f5839b73439b56e320c661950b03150fb715099ba4c05954e4dea05701ab366cc10234bbc6

      Download Submit
    • C:\Users\Admin\Desktop\CE5F7B-Readme.txt
      MD5

      951d9704fc53df47689fd7fbb0786807

      SHA1

      0bab92352f6f212dd2089867aeb79c0e0d2d1408

      SHA256

      cf92cb57094f57f65df612987593201faece437e22996d2e6fd739a52f1a31f2

      SHA512

      1fde577077973f2c390791be87e1e031da21c96fac7dee5f61e7d8fa859bc8594611af52a42792e0ff1fb15a0077682ea13deff2e0364a96c2f4458e1b41941f

      Download Submit
    • memory/1572-0-0x0000000000000000-mapping.dmp
      Download
    • memory/3944-4-0x0000000000000000-mapping.dmp
      Download
    • memory/5488-7-0x0000000000000000-mapping.dmp
      Download
    • memory/7752-12-0x0000000000000000-mapping.dmp
      Download