Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://bazaar.abuse...

windows10-2004-x64

10

Sharing

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General

  • Target

    https://bazaar.abuse.ch/sample/32fd435938f24dbcb2c62c4d2fcf0c9ddc109dc35275510b202830d7a119d317/

  • Sample

    240803-nlyznswfnd

Score
10/10
fantomremcosfreshcollectioncredential_accessdiscoveryevasionransomwareratstealer

Malware Config

Extracted

Family

remcos

Botnet

Fresh

C2

taysour6lakut1.duckdns.org:1960

taysour6lakut1.duckdns.org:1961

taysour6lakut2.duckdns.org:1960
Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    mzpos.dat

  • keylog_flag

    false

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    kmgvboirfg-VIHET7

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Path

C:\Program Files\7-Zip\DECRYPT_YOUR_FILES.HTML

Ransom Note
<html> <head> <style> body{ background-color: #3366CC; } h1 { background-color: RGB(249, 201, 16); } p { background-color: maroon; color: white; } </style> </head> <body> <center> <h1><b> Attention ! All your files </b> have been encrypted. </h1></br> <p> Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets.</br> That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us.</br> Getting a decryption of your files is - SIMPLY task.</br></br> That all what you need:</br> 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] </br> 2. For test, decrypt 2 small files, to be sure that we can decrypt you files.</br> 3. Pay our services. </br> 4. GET software with passwords for decrypt you files.</br> 5. Make measures to prevent this type situations again.</br></br> IMPORTANT(1)</br> Do not try restore files without our help, this is useless, and can destroy you data permanetly.</br></br> IMPORTANT(2) </br> We Cant hold you decryption passwords forever. </br>ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. </p> <p> Your ID_KEY: <br> </p> <table width="1024" border="0"> <tbody> <tr> <td><p>T5q0ttMmrHOdpvKKxoGU5/THFldjzJQWUF/HkFhzWzAzIi0gErl0E+s1i7d9hlDK1hZh8d6hfneBXXelw8gxTcaUPNJwfq3Dm/Lu7U8tmbphHX8a/8blqDuN8NT+pr4dYoZ+IgZ5NDaJMUwEBjoz6G4Sn/eP1i5bssH/il5Ubn7Nf0xEE8nNXIQxldJm0emFYC0/QhH3nuzHwdrKfkWo8dWavUePzG11b6VbC/TRVw3WN93M0TG8aKnqc5zaAKQpInUOv+wyipRdyvR0nU9OPGqZYMXRgXeOZbNT0u7cciU6DqeEqe8n7rp/bzjnM27pRw5XjGJfXa9BRuAIIWHn8Q==ZW4tVVM=</p></td> </tr> </tbody> </table> </center></html></body>

Extracted

Path

C:\$Recycle.Bin\DECRYPT_YOUR_FILES.HTML

Ransom Note
Attention ! All your files have been encrypted. Due encrypting was used algoritm RSA-4096 and AES-256, used for protection military secrets. That means > RESTORE YOU DATA POSIBLE ONLY BUYING decryption passwords from us. Getting a decryption of your files is - SIMPLY task. That all what you need: 1. Sent Your ID_KEY on mailbox [email protected] or [email protected] 2. For test, decrypt 2 small files, to be sure that we can decrypt you files. 3. Pay our services. 4. GET software with passwords for decrypt you files. 5. Make measures to prevent this type situations again. IMPORTANT(1) Do not try restore files without our help, this is useless, and can destroy you data permanetly. IMPORTANT(2) We Cant hold you decryption passwords forever. ALL DECRYPTION PASSWORDS, for what wasn`t we receive reward, will destroy after week of moment of encryption. Your ID_KEY: BemkQ4awQ8DVjdlew5sSMLCRJQKrMx2pXjLD2yElp2H4SBFRLwHEjXwDQsRMsZJE7uE9ykfelCKbao3aMK2Kzqh+tyWEbsNznJxe5BaN6GNsg4kSTQPM40gx38IHcqcnXXZ/Zp4w+i/Viq2/rA5wxLFoQaDhgO0DuKW34dA0rjrL/f+zl6wyhSkgaPRJstRCn4gLUpy23vPe7jdJVtTUXjHt5lcISRyfeHm4+WUFc0qvYozj3c1c15wukS8F0zoFvsBzlww4XInKwVKnq0ocS4v/IJTVjOLppwiM03bzyAlH1AOVIYOvWlna8COwOVEWzBLZlY/Xz2tqhVhot6zbCw==ZW4tVVM=

Targets

    • Target

      https://bazaar.abuse.ch/sample/32fd435938f24dbcb2c62c4d2fcf0c9ddc109dc35275510b202830d7a119d317/

    Score
    10/10
    fantomremcosfreshcollectioncredential_accessdiscoveryevasionransomwareratstealer

    • Fantom

      Ransomware which hides encryption process behind fake Windows Update screen.

      ransomwarefantom

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

      credential_accessstealer

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Renames multiple (1026) files with added filename extension

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

      ransomware

    • Disables Task Manager via registry modification

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Accesses Microsoft Outlook accounts

      collection

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks