Analysis

  • max time kernel
    81s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    30-09-2021 19:48

General

  • Target

    54f3ad16acb12eb0c69afc3dee0c9354a8a1477e590ce223ebe2845de8470d37.dll

  • Size

    356KB

  • MD5

    a4893ca94d909ae8a152a8afc1a66523

  • SHA1

    cfe5b8b1dba12c328994b2977ef6d82138c406dc

  • SHA256

    54f3ad16acb12eb0c69afc3dee0c9354a8a1477e590ce223ebe2845de8470d37

  • SHA512

    d5b97a444336a8fb2b136c8215e88ce032accce9704c9a7e7006a94c2b967dc032714ac109a0732ca9bd68454c58772bf79f244ecbe6f0952837745951d24540

Malware Config

Extracted

Path

C:\readme.txt

Family

conti

Ransom Note
All of your files are currently encrypted by CONTI strain. As you know (if you don't - just "google it"), all of the data that has been encrypted by our software cannot be recovered by any means without contacting our team directly. If you try to use any additional recovery software - the files might be damaged, so if you are willing to try - try it on the data of the lowest value. To make sure that we REALLY CAN get your data back - we offer you to decrypt 2 random files completely free of charge. You can contact our team directly for further instructions through our website : TOR VERSION : (you should download and install TOR browser first https://torproject.org) http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/ HTTPS VERSION : https://contirecovery.click YOU SHOULD BE AWARE! Just in case, if you try to ignore us. We've downloaded a pack of your internal data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us as soon as possible. ---BEGIN ID--- 1FYilun9uVGMYcfVQRhq9lukAQM9CryXIuVDMxUWCkpiApKU4d5zSfmvF2jxrxbZ ---END ID---
URLs

http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

https://contirecovery.click

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

  • Modifies extensions of user files 14 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 46 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\54f3ad16acb12eb0c69afc3dee0c9354a8a1477e590ce223ebe2845de8470d37.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\54f3ad16acb12eb0c69afc3dee0c9354a8a1477e590ce223ebe2845de8470d37.dll,#1
      2⤵
      • Modifies extensions of user files
      • Drops desktop.ini file(s)
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1380
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{C42FD895-B421-4A33-8B73-34420B94C6C4}'" delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:772
        • C:\Windows\SysWOW64\wbem\WMIC.exe
          C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{C42FD895-B421-4A33-8B73-34420B94C6C4}'" delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1064
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{10A95FEA-CE68-4673-91E9-44796907EA8F}'" delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:872
        • C:\Windows\SysWOW64\wbem\WMIC.exe
          C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{10A95FEA-CE68-4673-91E9-44796907EA8F}'" delete
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:1232
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{3F8D846B-9DD4-48C1-9EB7-331601E45A01}'" delete
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\wbem\WMIC.exe
          C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{3F8D846B-9DD4-48C1-9EB7-331601E45A01}'" delete
          4⤵
            PID:1660
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{83DB695E-B6C4-4F19-94F5-5AB249FE6E4B}'" delete
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1144
          • C:\Windows\SysWOW64\wbem\WMIC.exe
            C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{83DB695E-B6C4-4F19-94F5-5AB249FE6E4B}'" delete
            4⤵
              PID:1580
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{6E98F490-EC90-48A3-8095-7CAB9F53C350}'" delete
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1464
            • C:\Windows\SysWOW64\wbem\WMIC.exe
              C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{6E98F490-EC90-48A3-8095-7CAB9F53C350}'" delete
              4⤵
                PID:1376
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{BE04AF18-D313-4450-8D00-0E635D2D4C97}'" delete
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1304
              • C:\Windows\SysWOW64\wbem\WMIC.exe
                C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{BE04AF18-D313-4450-8D00-0E635D2D4C97}'" delete
                4⤵
                  PID:1748
              • C:\Windows\SysWOW64\cmd.exe
                cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{CEE4CCBC-073C-4640-96A7-6BA7CCA7CF92}'" delete
                3⤵
                  PID:844
                  • C:\Windows\SysWOW64\wbem\WMIC.exe
                    C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{CEE4CCBC-073C-4640-96A7-6BA7CCA7CF92}'" delete
                    4⤵
                      PID:1608
                  • C:\Windows\SysWOW64\cmd.exe
                    cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{865F3304-51C3-4B8F-A536-F05EC48E587F}'" delete
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:472
                    • C:\Windows\SysWOW64\wbem\WMIC.exe
                      C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{865F3304-51C3-4B8F-A536-F05EC48E587F}'" delete
                      4⤵
                        PID:832
                    • C:\Windows\SysWOW64\cmd.exe
                      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{F66D88E2-B57B-4989-8ED8-F69EC00D6AED}'" delete
                      3⤵
                        PID:300
                        • C:\Windows\SysWOW64\wbem\WMIC.exe
                          C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{F66D88E2-B57B-4989-8ED8-F69EC00D6AED}'" delete
                          4⤵
                            PID:456
                        • C:\Windows\SysWOW64\cmd.exe
                          cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{2D3F6F2F-1FEA-4EF5-B2F9-9AD4D3736A5B}'" delete
                          3⤵
                            PID:1876
                            • C:\Windows\SysWOW64\wbem\WMIC.exe
                              C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{2D3F6F2F-1FEA-4EF5-B2F9-9AD4D3736A5B}'" delete
                              4⤵
                                PID:1100
                            • C:\Windows\SysWOW64\cmd.exe
                              cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{3AB2448F-F186-4CD1-8044-F01D62EBD5C3}'" delete
                              3⤵
                                PID:432
                                • C:\Windows\SysWOW64\wbem\WMIC.exe
                                  C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{3AB2448F-F186-4CD1-8044-F01D62EBD5C3}'" delete
                                  4⤵
                                    PID:1440
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{5E61C5BD-F1FA-4763-95D9-47A0D7BD5FDD}'" delete
                                  3⤵
                                    PID:1368
                                    • C:\Windows\SysWOW64\wbem\WMIC.exe
                                      C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{5E61C5BD-F1FA-4763-95D9-47A0D7BD5FDD}'" delete
                                      4⤵
                                        PID:1884
                                • C:\Windows\system32\vssvc.exe
                                  C:\Windows\system32\vssvc.exe
                                  1⤵
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:748

                                Network

                                MITRE ATT&CK Matrix ATT&CK v6

                                Credential Access

                                Credentials in Files

                                1
                                T1081

                                Collection

                                Data from Local System

                                1
                                T1005

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/300-72-0x0000000000000000-mapping.dmp
                                • memory/432-76-0x0000000000000000-mapping.dmp
                                • memory/456-73-0x0000000000000000-mapping.dmp
                                • memory/472-70-0x0000000000000000-mapping.dmp
                                • memory/772-57-0x0000000000000000-mapping.dmp
                                • memory/832-71-0x0000000000000000-mapping.dmp
                                • memory/844-69-0x0000000000000000-mapping.dmp
                                • memory/872-59-0x0000000000000000-mapping.dmp
                                • memory/1064-58-0x0000000000000000-mapping.dmp
                                • memory/1100-75-0x0000000000000000-mapping.dmp
                                • memory/1144-63-0x0000000000000000-mapping.dmp
                                • memory/1232-60-0x0000000000000000-mapping.dmp
                                • memory/1304-67-0x0000000000000000-mapping.dmp
                                • memory/1368-78-0x0000000000000000-mapping.dmp
                                • memory/1376-66-0x0000000000000000-mapping.dmp
                                • memory/1380-55-0x0000000000190000-0x00000000001DF000-memory.dmp
                                  Filesize

                                  316KB

                                • memory/1380-53-0x0000000000000000-mapping.dmp
                                • memory/1380-56-0x0000000010000000-0x000000001005C000-memory.dmp
                                  Filesize

                                  368KB

                                • memory/1380-54-0x0000000074C71000-0x0000000074C73000-memory.dmp
                                  Filesize

                                  8KB

                                • memory/1440-77-0x0000000000000000-mapping.dmp
                                • memory/1464-65-0x0000000000000000-mapping.dmp
                                • memory/1580-64-0x0000000000000000-mapping.dmp
                                • memory/1660-62-0x0000000000000000-mapping.dmp
                                • memory/1748-68-0x0000000000000000-mapping.dmp
                                • memory/1876-74-0x0000000000000000-mapping.dmp
                                • memory/1884-79-0x0000000000000000-mapping.dmp
                                • memory/2044-61-0x0000000000000000-mapping.dmp