Overview

overview

10

Static

static

10

ddb5fdd76f...48.exe

windows7-x64

10

ddb5fdd76f...48.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22-02-2024 16:38

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    ddb5fdd76fe638663422dd48b218a048.exe

  • Size

    1011KB

  • MD5

    ddb5fdd76fe638663422dd48b218a048

  • SHA1

    7d22a562f6c0eea916389ca5ff202ce1b96d00ad

  • SHA256

    47255c3ad12f555aff1e23aafa87e37693e736e8e6c989e4766426587dd252dc

  • SHA512

    eac75bc0914fbef36bb41355dcbaf30a46c724a32cf9605188fcef40a29ff43d9fd6ca51ec33db412c59e747ed9bd12833c797021560d252810085642286a4af

  • SSDEEP

    12288:GSCbvRebCWcQ95agaB/0qaZfakaaagMaOamaFa6:LevgZboGzdgtdmv

Score
10/10
netwalkerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Contacts\933377-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .933377 -- 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. Additionally, your data may have been stolen and if you do not cooperate with us, it will become publicly available on our blog. -- 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_933377: oH941p114ayb/6bo5ePiicQbWWHKcLW9COJHzwy9eoBngWDOjF bM/bKEUgrrhY6cgfX0jQfZDEvQqmApwewwUA2H0bKJLi9mNp6R qgsW4TyR68ik/O4VYndP3aF27krJHDvR/iAAR5I/XnYdibT2NZ sNTYdfU21h16yS94tckLZ2ZvMtIr1ZNceWdHkssWQr31k9wB6S rohUXWqBPre/oUjjLCkwFox/b+/gl6sWVfa3anCHRNZe797cBt 2C7ChfEq9Jd3BdNq4Eb4iI4iElVdVNCQCtddtdJA==}
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
  • Renames multiple (7372) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    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.

    spywarestealer
  • Drops file in Program Files directory 64 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\ddb5fdd76fe638663422dd48b218a048.exe
    "C:\Users\Admin\AppData\Local\Temp\ddb5fdd76fe638663422dd48b218a048.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1940
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:2904
    • C:\Windows\SysWOW64\notepad.exe
      C:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\933377-Readme.txt"
      2⤵
        PID:2984
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c "C:\Users\Admin\AppData\Local\Temp\7704.tmp.bat"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:228
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /PID 1940
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:8116
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:6024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Microsoft\Assistance\Client\1.0\es-ES\Help_CValidator.H1D.933377
      Filesize

      12KB

      MD5

      d2191ae8e47bd1eed850b2bbc747eafb

      SHA1

      8fb4cea05660a7e426c14941dd93572e29d008c4

      SHA256

      587542ea5ef3b2976bf494b0911dbd3cb7259ee03e8ef715718d1b823f91abf3

      SHA512

      d68b7f9edec6f6247246fc387a66b538a66e79a72a5cdf9f86fbfa9e1f1b0f61255e4abe63864531caf445b362d17bca5225fcf3eea2463c66a40bdb044fcc99

      Download Submit

    • C:\ProgramData\Microsoft\Assistance\Client\1.0\it-IT\Help_CValidator.H1D.933377
      Filesize

      12KB

      MD5

      55a7c9e71635aa40bbe56cacf6a2993a

      SHA1

      7fec0c21d9189cd9f649bd71ed49d307a311dcad

      SHA256

      8ec7c50fc430ea36d4b58d0a14c5bae428ee37f6d0a91fe6f746bd02a10ceed2

      SHA512

      0b3ab31bb82108b56010cc4d745d95093ba8991b1d0a6c766c688c35b4b4fa5480e37361d0121b656c1d31e35c2123b4f0cf045906d546d81f8fa71fe5c1fbc4

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\PUBWZINT.REST.trx_dll.933377
      Filesize

      352KB

      MD5

      4767746f675217d6fd38fdf6d1130419

      SHA1

      60f5029409b424f96c061cd810a0e5dd591068cc

      SHA256

      0f9d3f8ecd624cc4c062a1e0d012a4661bc9c82f69a62d4eda8ae259366bc739

      SHA512

      52437741b25bf0c9fc4452787b8a856842ec9f565ff6aa1f69b3fc85f1e644f4e830db938b4780b372163b7eb29c97259fcacdca2c027f70e7337701fc499519

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\STINTL.DLL.trx_dll.933377
      Filesize

      17KB

      MD5

      28299a9c647ac23a941f8c7e76d89a31

      SHA1

      dda2b73721c89a1b7d3dbf36fe7d6085c9fadc2b

      SHA256

      d170a5340d5a05e946571ae7e60fbfe9aba2d42a881df379d9e71a742da838f6

      SHA512

      426620d92efd0550d192452f9934feab4131de52f6c7941323a667819be265747d49cace995d46a1a7948bad5b96f1266d51686e90b6e0411ee245dfa62a986e

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\VISINTL.DLL.trx_dll.933377
      Filesize

      462KB

      MD5

      f6c9007ab81fe6bb7d0b27a8e96cac76

      SHA1

      e6517efb585f2a22825f41dbdf718863083ad1bf

      SHA256

      a5da37d2f9880058c0c5bf9f338d5aeb3589a661abc33b15f134925531c3a5e0

      SHA512

      8e888acb33384537457964612940b6d699bdfbf5efb90ee12e8642d957046829c37f4082854939537136d5ea257b5dd2725a4a3c45e5ee136c2b9bc66c5f6fc4

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\WWINTL.REST.trx_dll.933377
      Filesize

      1.1MB

      MD5

      fa6162a4eee2fe779e6846d6f98d64e5

      SHA1

      ea3e6b15df01fd5d31a394fd8c51da828103ce4d

      SHA256

      39e996e83309cda541b4c44bec317758b666db72cf2d34cd8bf1727b4e8dbc15

      SHA512

      98bba814084409044f77914f05877ef6363de5798c6cb830e768ac51df62c83b7c3f33d4412e31933c1b226b38c3791a967de1b1bae11245358d5c1ba7b82c14

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\XLINTL32.REST.trx_dll.933377
      Filesize

      1.2MB

      MD5

      b952ce928b94243054c1cb430c50f7e3

      SHA1

      1de2c1a29c666bfd102584e42137b3bc7fa1783b

      SHA256

      49d765cb57b9ca1c05d194716eff417aed6fa9c8f6446522ce7200c6b2492f4b

      SHA512

      ae22f6d58aa7f168e6742e318a51be343445e8d79ee18d2d570edafb38397bd9b6d541789072e32081818da3afe4e4dad33185bddd242b674f353abab2553e44

      Download Submit

    • C:\ProgramData\Microsoft\OFFICE\UICaptions\3082\XLSLICER.DLL.trx_dll.933377
      Filesize

      14KB

      MD5

      a1b9ac90439fcc5381d92558c885d139

      SHA1

      a7b71b567bc0c2d6dcb4a92d95157db97c15dfbb

      SHA256

      5f2da8af0c710f173582d3832eacef567de8e9947ab8ed42c15e71de3cbc11ba

      SHA512

      00382bcf158d370020814b3cf568b3b943aa944472637c1dda8fdd53a3ca702d2d0e50d342a47e145ca5b14a7d9a260c3eb7afddcc30ba4243579209bdf6c9a2

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\7704.tmp.bat
      Filesize

      109B

      MD5

      37394c51313cc7a385fabef29d4e52de

      SHA1

      0a1da7f4a0ea818ae4875e76ae0e21a58b73db0c

      SHA256

      3a924ccdf754cd6bdbabc58ba76e20de35c05da54495055ab35480685168f6ca

      SHA512

      168cba74bd688c1f1da8279662944b29985d45261a2214307bad8d2d545dcd3e6ba074b8e19e20e238e9a7007533d986c5694969849a436cce9eea15958d1bff

      Download Submit

    • C:\Users\Admin\Contacts\933377-Readme.txt
      Filesize

      1KB

      MD5

      965b85cde42810c9ea2a510f614d64e1

      SHA1

      d3a3abdc92d3b63d9ade93352eadf28461b40471

      SHA256

      c4a0c35c157f5bfc8000f4262b983f8dbe88a6b1bfd2daafc108bffaad738fe1

      SHA512

      b141046cc117c5523a2cdaf7dcf111f19b50c605746096f1dce4cf252f4991c009581a73c4e6246493f917b371233eb88efa4c88a83756bcf925a84f0fe9a84b

      Download Submit