Overview

overview

10

Static

static

10

1111714565...e8.exe

windows7_x64

10

1111714565...e8.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    171s
  • max time network
    187s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    01-02-2022 01:36

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General

  • Target

    11117145652ed5e6cb36a8480fc4da64de65a784510d3240548869af056dcde8.exe

  • Size

    69KB

  • MD5

    412a0cf41cc1e85ac7ffdc0ccebd5475

  • SHA1

    b86332d642d62fc945c015e3ae2f942a844ab948

  • SHA256

    11117145652ed5e6cb36a8480fc4da64de65a784510d3240548869af056dcde8

  • SHA512

    6830bc65ea37f5593b60923f37aab8e2aaea29230e110b44d45225361978253eb8a0066d73e3376cea69dc1d0af5b80c66c8e381dc2207041ae56836bcaa2c59

Score
10/10
netwalkerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\Favorites\18EFE7-Readme.txt

Family

netwalker

Ransom Note
Hi! Your files are encrypted. All encrypted files for this computer has extension: .18efe7 -- 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_18efe7: GYbvlo/s+CApuPxoSx1spmaVi8UCwMgIF/41RcOJ5z01ZQ+74x eWi887lcJCbgd8wN4w4T21oo3oTkqDbdweUyEeS1utAMcENp6R qtC3qEToHLHCOQuD8uM8oet+YfXvioYft9sEOVGObi6AerjgqV 3suyjWzCYYekjIgb7dCU+rCfr/sU+9fTtInu5LqWcgD0hPMuCA wwhgm9uGNd1Q4GRpFzr/yPfLasJWM+DCXHoG3yT4L+K2gSNlb7 6NJ3tTCc1oQAQmGiXUzhygSXq4qDpfw9mczYutig==}
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 1 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.

    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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11117145652ed5e6cb36a8480fc4da64de65a784510d3240548869af056dcde8.exe
    "C:\Users\Admin\AppData\Local\Temp\11117145652ed5e6cb36a8480fc4da64de65a784510d3240548869af056dcde8.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:2880
    • C:\Windows\system32\vssadmin.exe
      C:\Windows\system32\vssadmin.exe delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:1436
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

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

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Downloads