Analysis

  • max time kernel
    69s
  • max time network
    71s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/02/2023, 02:39

General

  • Target
    b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192.exe
  • Size 75KB
  • Sample230222-c5ffwshe64
  • SHA256 b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Extracted

Path
  • C:\Users\Admin\3D Objects\README_TO_DECRYPT.html

  • quantum

Ransom Note
  • <html> <head> <title>Quantum</title> </head> <body> <h1>Your ID:</h1> <b> <pre> 9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c </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://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c">http://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c</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

  • 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://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c 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://tijykgureh7kqq5cczzeutaoxvmf6yinpar72o3bxome7b44vwqxadyd.onion/?cid=9064d8b148a0f19a9e3598a6e0b0aeb16b26dd98663f9745164eefdf45b6ef3c

Signatures

  • Quantum Ransomware

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

  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops desktop.ini file(s) 25 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192.exe
    "C:\Users\Admin\AppData\Local\Temp\b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192.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:4872
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\\0E56BBA4.bat" "C:\Users\Admin\AppData\Local\Temp\b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192.exe""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5080
      • C:\Windows\system32\attrib.exe
        attrib -s -r -h "C:\Users\Admin\AppData\Local\Temp\b63e94928da25e18caa1506305b9ca3dedc267e747dfa4710860e757d2cc8192.exe"
        3⤵
        • Views/modifies file attributes
        PID:1892
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\README_TO_DECRYPT.html
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7fff312c46f8,0x7fff312c4708,0x7fff312c4718
      2⤵
        PID:1888
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
        2⤵
          PID:4120
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2228 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1628
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2648 /prefetch:8
          2⤵
            PID:4880
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3168 /prefetch:1
            2⤵
              PID:3300
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3284 /prefetch:1
              2⤵
                PID:4596
              • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5292 /prefetch:8
                2⤵
                  PID:2768
                • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
                  2⤵
                  • Drops file in Program Files directory
                  PID:1668
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff752c05460,0x7ff752c05470,0x7ff752c05480
                    3⤵
                      PID:5056
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5292 /prefetch:8
                    2⤵
                    • Suspicious behavior: EnumeratesProcesses
                    PID:2408
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5432 /prefetch:1
                    2⤵
                      PID:2308
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1460,13092631746926340928,1840752809906299572,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=2 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4024 /prefetch:1
                      2⤵
                        PID:4976
                    • C:\Windows\System32\CompPkgSrv.exe
                      C:\Windows\System32\CompPkgSrv.exe -Embedding
                      1⤵
                        PID:4544

                      Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            README_TO_DECRYPT.html

                            • Path C:\Users\Admin\3D Objects\README_TO_DECRYPT.html
                            • Size 2KB
                            • SHA256 5bf44eec39e6085e9ae20188bdf213a2c2edc8ec4afef09c687ff90b79bda428
                            • MD5 SHA1 SHA512

                            settings.dat

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                            • Size 152B
                            • SHA256 f00d04749a374843bd118b41f669f8b0a20d76526c34b554c3ccac5ebd2f4f75
                            • MD5 SHA1 SHA512

                            settings.dat

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                            • Size 152B
                            • SHA256 060a2e5f65b8f3b79a8d4a0c54b877cfe032f558beb0888d6f810aaeef8579bd
                            • MD5 SHA1 SHA512

                            Edge Profile.ico

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Edge Profile.ico
                            • Size 70KB
                            • SHA256 e23040951e464b53b84b11c3466bbd4707a009018819f9ad2a79d1b0b309bc25
                            • MD5 SHA1 SHA512 SSDEEP

                            Microsoft Edge.lnk

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Microsoft Edge.lnk
                            • Size 2KB
                            • SHA256 23e7dd6a30f8d2a2db75c2b6738322acf71f076299935764b83577a907ea57ab
                            • MD5 SHA1 SHA512

                            Preferences

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences
                            • Size 4KB
                            • SHA256 23bdb54132c7df783972ce536f9f303412f205adc91566b14d32f9492087864c
                            • MD5 SHA1 SHA512 SSDEEP

                            Secure Preferences

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Secure Preferences
                            • Size 24KB
                            • SHA256 647867c7236bcb78b7d585b476d82a101a077fac43c78dc59e612253fbf69437
                            • MD5 SHA1 SHA512 SSDEEP

                            CURRENT

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT
                            • Size 16B
                            • SHA256 1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167
                            • MD5 SHA1 SHA512

                            000001.dbtmp

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\shared_proto_db\000001.dbtmp
                            • Size 16B
                            • SHA256 0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443
                            • MD5 SHA1 SHA512

                            MANIFEST-000001

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\shared_proto_db\MANIFEST-000001
                            • Size 41B
                            • SHA256 f9d31b278e215eb0d0e9cd709edfa037e828f36214ab7906f612160fead4b2b4
                            • MD5 SHA1 SHA512

                            0E56BBA4.bat

                            • Path C:\Users\Admin\AppData\Local\Temp\0E56BBA4.bat
                            • Size 65B
                            • SHA256 c80128f51871eec3ae2057989a025ce244277c1c180498a5aaef45d5214b8506
                            • MD5 SHA1 SHA512

                            ccba5a5986c77e43.customDestinations-ms

                            • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\ccba5a5986c77e43.customDestinations-ms
                            • Size 3KB
                            • SHA256 6fb0ff3f898db89d4b2df0fab73c55070973f5cfe67284a905d158a11917f816
                            • MD5 SHA1 SHA512

                            README_TO_DECRYPT.html

                            • Path C:\Users\Admin\Desktop\README_TO_DECRYPT.html
                            • Size 2KB
                            • SHA256 5bf44eec39e6085e9ae20188bdf213a2c2edc8ec4afef09c687ff90b79bda428
                            • MD5 SHA1 SHA512

                            memory/4120-369-0x00007FFF4EC00000-0x00007FFF4EC01000-memory.dmp