Analysis

  • max time kernel
    2s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    12-06-2021 22:53

General

  • Target

    2d4b2b807ace9dfc3f13962c65f1b6b9b6ba80394c517729ada50d6302792d9c.bin.exe

  • Size

    3.3MB

  • MD5

    1341f07df1c2c4841f1b0dc6641676f7

  • SHA1

    9aedf3b45bb430358aefb81fb15ea93387d47436

  • SHA256

    2d4b2b807ace9dfc3f13962c65f1b6b9b6ba80394c517729ada50d6302792d9c

  • SHA512

    eab98a1a6632ce3cd940e219c218ec9704469aafe9bf5817a5397351cdf18a25dc69544d7051b416f46e4a1da74c3ef39f6a9750181084f522f9c876a54a0626

Score
10/10

Malware Config

Extracted

Path

C:\$Recycle.Bin\NEFILIM-HELP.txt

Ransom Note
Two things have happened to your company. ========================================================================================================================== Gigabytes of archived files that we deemed valuable or sensitive were downloaded from your network to a secure location. When you contact us we will tell you how much data was downloaded and can provide extensive proof of the data extraction. You can analyze the type of the data we download on our websites. If you do not contact us we will start leaking the data periodically in parts. ========================================================================================================================== We have also encrypted files on your computers with military grade algorithms. If you don't have extensive backups the only way to retrieve your data is with our software. Restoration of your data with our software requires a private key which only we possess. ========================================================================================================================== To confirm that our decryption software works send 2 encrypted files from random computers to us via email. You will receive further instructions after you send us the test files. We will make sure you retrieve your data swiftly and securely and your data that we downloaded will be securely deleted when our demands are met. If we do not come to an agreement your data will be leaked on this website. Website: http://corpleaks.net TOR link: http://hxt254aygrsziejn.onion Mail list: [email protected] [email protected] [email protected]
URLs

http://corpleaks.net

http://hxt254aygrsziejn.onion

Signatures

  • Nefilim

    Ransomware first seen in early 2020 which shares code with the Nemty family. Rewritten in Golang in July 2020.

  • Drops desktop.ini file(s) 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2d4b2b807ace9dfc3f13962c65f1b6b9b6ba80394c517729ada50d6302792d9c.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\2d4b2b807ace9dfc3f13962c65f1b6b9b6ba80394c517729ada50d6302792d9c.bin.exe"
    1⤵
    • Drops desktop.ini file(s)
    PID:3840

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-3686645723-710336880-414668232-1000\desktop.ini

    MD5

    066ecbc89167f56503fbf2b4bc5f22de

    SHA1

    d538c251e4153abcab0caadc6fc5f075bab74f11

    SHA256

    88b96292234b61f6dfb5ad0738b6c5f2e9a4f37d040a0a08edea2314e0a86e5f

    SHA512

    011b07f80750a2112cec4a8f2e114b38cec5cdcf1c758bb6b66951b3e749d917d96cba3c1b3cc0c8616c3dbad4c546d80da056014ace6b9c66326b98e4b02267