Analysis

  • max time kernel
    28s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    01-03-2023 14:19

General

  • Target

    2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9.exe

  • Size

    75KB

  • MD5

    97b012d95745c2d4670f90ea81a3167a

  • SHA1

    8ea598b142fb2ca30318b968dc61f912587a5824

  • SHA256

    2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9

  • SHA512

    6d9b760f7c092fcaf942b67a37cdebe12bce50c0e5badb15cf00f2d10caa0dae8d1c59b4e2e130da55beab200e06fbebf097661c85eb834396e968a6d996a853

  • SSDEEP

    1536:9aX51pVH9hsgNGLs6BLM1frxz/HTfcKKBaJG:OfJGLs6BwNxnfTKsG

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> 7d964f3d2efe012eb21dd419ffdf79c260dd875e64e187754df218bdedde1061 </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://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=7d964f3d2efe012eb21dd419ffdf79c260dd875e64e187754df218bdedde1061">http://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=7d964f3d2efe012eb21dd419ffdf79c260dd875e64e187754df218bdedde1061</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>

Extracted

Path

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

Family

quantum

Ransom Note
Your ID: This message contains an information how to fix the troubles you've got with your network. Files on the workstations in your network were encrypted and any your attempt to change, decrypt or rename them could destroy the content. The only way to get files back is a decryption with Key, provided by the Quantum Locker. During the period your network was under our control, we downloaded a huge volume of information. Now it is stored on our servers with high-secure access. This information contains a lot of sensitive, private and personal data. Publishing of such data will cause serious consequences and even business disruption. It's not a threat, on the contrary - it's a manual how to get a way out. Quantum team doesn't aim to damage your company, our goals are only financial. After a payment you'll get network decryption, full destruction of downloaded data, information about your network vulnerabilities and penetration points. 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. To contact our support and start the negotiations, please visit our support chat. It is simple, secure and you can set a password to avoid intervention of unauthorised persons. http://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=7d964f3d2efe012eb21dd419ffdf79c260dd875e64e187754df218bdedde1061 Password field should be blank for the first login. Note that this server is available via Tor browser only. P.S. How to get TOR browser - see at https://www.torproject.org
URLs

http://obqregdsd7dmilzf3aqvegn3sofpufsvb2n3m2dvwfhsgthemvyi44qd.onion/?cid=7d964f3d2efe012eb21dd419ffdf79c260dd875e64e187754df218bdedde1061

Signatures

  • Quantum Ransomware

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

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Deletes itself 1 IoCs
  • Drops desktop.ini file(s) 26 IoCs
  • Modifies Internet Explorer settings 1 TTPs 25 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9.exe
    "C:\Users\Admin\AppData\Local\Temp\2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9.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:1092
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\\006C3A05.bat" "C:\Users\Admin\AppData\Local\Temp\2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9.exe""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\2fd8356abd42b19799aca857990a5f49631b02bd3253f80d96b5d27dcfd2f7c9.exe"
        3⤵
        • Views/modifies file attributes
        PID:1580
  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\README_TO_DECRYPT.html
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1048 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1160

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\006C3A05.bat

    Filesize

    65B

    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

  • C:\Users\Admin\AppData\Local\Temp\006C3A05.bat

    Filesize

    65B

    MD5

    348cae913e496198548854f5ff2f6d1e

    SHA1

    a07655b9020205bd47084afd62a8bb22b48c0cdc

    SHA256

    c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506

    SHA512

    799796736d41d3fcb5a7c859571bb025ca2d062c4b86e078302be68c1a932ed4f78e003640df5405274364b5a9a9c0ba5e37177997683ee7ab54e5267590b611

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

    Filesize

    2KB

    MD5

    a37087dcd0651616d34cfd2e7bd65ca8

    SHA1

    204e9aae38cf9392b7774e93b3e90df43cdb6907

    SHA256

    793090dab3d46af39fe6282716d6fe554edc81a5d70692e0ce3c9f7a89d09ab5

    SHA512

    0d434fb8109f3ef1183660fbad1fcd4d069581a90f56966171fac73e6fb14c7dfe102f586c614c330eb850458dd3d8966c01ed7ccf0db158a768a20fcabb0e2b

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

    Filesize

    2KB

    MD5

    a37087dcd0651616d34cfd2e7bd65ca8

    SHA1

    204e9aae38cf9392b7774e93b3e90df43cdb6907

    SHA256

    793090dab3d46af39fe6282716d6fe554edc81a5d70692e0ce3c9f7a89d09ab5

    SHA512

    0d434fb8109f3ef1183660fbad1fcd4d069581a90f56966171fac73e6fb14c7dfe102f586c614c330eb850458dd3d8966c01ed7ccf0db158a768a20fcabb0e2b

  • memory/1048-312-0x0000000002E30000-0x0000000002E40000-memory.dmp

    Filesize

    64KB

  • memory/1160-313-0x0000000002410000-0x0000000002412000-memory.dmp

    Filesize

    8KB