Analysis

  • max time kernel
    30s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    22-02-2023 03:46

General

  • Target

    0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f.exe

  • Size

    75KB

  • MD5

    ee9c6e60027c8ce65003de32d6125914

  • SHA1

    97872dbc8df6d6c4cc6419e81994336503c748f9

  • SHA256

    0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f

  • SHA512

    78b53a0b34ffca4bc07b318ae8d23c3a74a9fb3ab2801e25888f1cf7690cb8ed72460ff36d11b3ddeebfd15e2a62e353efb63b7a9c2ae2a15607875ca1052bb3

  • SSDEEP

    768:FbzkUtPX9DUetap1YOc8tmmSuDsCHJexou+nPp18vjILhussGdamRv5qmppQHUdv:SaX1LGfDpRRuI0PuvtOuSG4yr

Score
10/10

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\README_TO_DECRYPT.html

Family

quantum

Ransom Note
<html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <b> <pre> 4cbc5bff6f22f21e69b3e6bbeb25014e6dd5b11dd5a910f8d57bad9f0577a832 </pre> </b> <hr/> This message contains an information how to fix the troubles you've got with your network.<br><br> Files on the workstations in your network were encrypted and any your attempt to change, decrypt or rename them could destroy the content.<br> The only way to get files back is a decryption with Key, provided by the Quantum Locker.<br><br> During the period your network was under our control, we downloaded a huge volume of information.<br> Now it is stored on our servers with high-secure access. This information contains a lot of sensitive, private and personal data.<br> Publishing of such data will cause serious consequences and even business disruption.<br><br> It's not a threat, on the contrary - it's a manual how to get a way out.<br> Quantum team doesn't aim to damage your company, our goals are only financial.<br><br> After a payment you'll get network decryption, full destruction of downloaded data, information about your network vulnerabilities and penetration points.<br> If you decide not to negotiate, in 48 hours the fact of the attack and all your information will be posted on our site and will be promoted among dozens of cyber forums, news agencies, websites etc.<br><br> To contact our support and start the negotiations, please visit our support chat.<br> It is simple, secure and you can set a password to avoid intervention of unauthorised persons.<br> <a href="http://mi7h736jfgwnhutiodavthxre5atnfrrpekbhry7fizqddkfcm6povid.onion/?cid=4cbc5bff6f22f21e69b3e6bbeb25014e6dd5b11dd5a910f8d57bad9f0577a832">http://mi7h736jfgwnhutiodavthxre5atnfrrpekbhry7fizqddkfcm6povid.onion/?cid=4cbc5bff6f22f21e69b3e6bbeb25014e6dd5b11dd5a910f8d57bad9f0577a832</a> <ul> <li>Password field should be blank for the first login. <li>Note that this server is available via Tor browser only. </ul> P.S. How to get TOR browser - see at https://www.torproject.org </body> </html>

Signatures

  • Quantum Ransomware

    A rebrand of the MountLocker ransomware first seen in August 2021.

  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 26 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f.exe
    "C:\Users\Admin\AppData\Local\Temp\0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1556
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\\006C6FA5.bat" "C:\Users\Admin\AppData\Local\Temp\0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f.exe""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:748
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\0789a9c0a0d4f3422cb4e9b8e64f1ba92f7b88e2edfd14b7b9a7f5eee5135a4f.exe"
        3⤵
        • Views/modifies file attributes
        PID:1456

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\006C6FA5.bat

    Filesize

    65B

    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

  • C:\Users\Admin\AppData\Local\Temp\006C6FA5.bat

    Filesize

    65B

    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

  • C:\Users\Admin\Desktop\README_TO_DECRYPT.html

    Filesize

    2KB

    MD5

    5da67e32f238009195ddc98dbc8fa7dd

    SHA1

    688b93f5d00ae6aaafbeb0a33ab5487975b4aa50

    SHA256

    7748b1e324112859cace7c9e60eea134503e86e24c3b49f51738b44c3e9b5971

    SHA512

    64164d7e99ff1e31c892f1ea3f55d5673cc2958d8c74b0bc6d08e3000bc8e4236aae48338e193cdd1464a0e3ccd3561a83aaf1c215d26e127ecdb81d7644d21b