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Analysis

  • max time kernel
    144s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/10/2022, 00:20

General

  • Target

    21088b0b1c5e6d7eec54fc21e969aee6a1818849094d89d215d7a99596f7c28e.dll

  • Size

    120KB

  • MD5

    911f17f27a87741be1b0a26f8f3ac49c

  • SHA1

    f41f4e28c711bb0f9f771f078614a048e460c79c

  • SHA256

    21088b0b1c5e6d7eec54fc21e969aee6a1818849094d89d215d7a99596f7c28e

  • SHA512

    363a3b8c24c1b83b2a920b15e23979ab1a5576c57d64d98daeadcee67b36dbf3bd70347d8f44866ccbce13b2693779322e1e4795c9d988ca3eed6f4592e30f7e

  • SSDEEP

    3072:KS8gDju0Q2HeDpr4uiEbhMIKOZvqfm9oO:NO0BeDuuiYZJEfaoO

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Signatures

  • Modifies firewall policy service 2 TTPs 6 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 2 IoCs
  • Windows security bypass 2 TTPs 12 IoCs
  • Executes dropped EXE 3 IoCs
  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 14 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 16 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\fontdrvhost.exe
    "fontdrvhost.exe"
    1⤵
      PID:784
    • C:\Windows\system32\dwm.exe
      "dwm.exe"
      1⤵
        PID:1016
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2884
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3276
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
              PID:3440
            • C:\Windows\System32\RuntimeBroker.exe
              C:\Windows\System32\RuntimeBroker.exe -Embedding
              1⤵
                PID:3688
              • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                1⤵
                  PID:3528
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  1⤵
                    PID:3376
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    1⤵
                      PID:4700
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                      1⤵
                        PID:2580
                      • C:\Windows\Explorer.EXE
                        C:\Windows\Explorer.EXE
                        1⤵
                          PID:2648
                          • C:\Windows\system32\rundll32.exe
                            rundll32.exe C:\Users\Admin\AppData\Local\Temp\21088b0b1c5e6d7eec54fc21e969aee6a1818849094d89d215d7a99596f7c28e.dll,#1
                            2⤵
                            • Suspicious use of WriteProcessMemory
                            PID:3500
                            • C:\Windows\SysWOW64\rundll32.exe
                              rundll32.exe C:\Users\Admin\AppData\Local\Temp\21088b0b1c5e6d7eec54fc21e969aee6a1818849094d89d215d7a99596f7c28e.dll,#1
                              3⤵
                              • Suspicious use of WriteProcessMemory
                              PID:1840
                              • C:\Users\Admin\AppData\Local\Temp\e56a3b7.exe
                                C:\Users\Admin\AppData\Local\Temp\e56a3b7.exe
                                4⤵
                                • Modifies firewall policy service
                                • UAC bypass
                                • Windows security bypass
                                • Executes dropped EXE
                                • Windows security modification
                                • Checks whether UAC is enabled
                                • Drops file in Windows directory
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                • Suspicious use of WriteProcessMemory
                                • System policy modification
                                PID:4236
                              • C:\Users\Admin\AppData\Local\Temp\e56f774.exe
                                C:\Users\Admin\AppData\Local\Temp\e56f774.exe
                                4⤵
                                • Executes dropped EXE
                                PID:4188
                              • C:\Users\Admin\AppData\Local\Temp\e56fa05.exe
                                C:\Users\Admin\AppData\Local\Temp\e56fa05.exe
                                4⤵
                                • Modifies firewall policy service
                                • UAC bypass
                                • Windows security bypass
                                • Executes dropped EXE
                                • Windows security modification
                                • Checks whether UAC is enabled
                                • Enumerates connected drives
                                • Drops file in Windows directory
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of WriteProcessMemory
                                • System policy modification
                                PID:3808
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                          1⤵
                            PID:2696
                          • C:\Windows\system32\sihost.exe
                            sihost.exe
                            1⤵
                              PID:2620
                            • C:\Windows\system32\fontdrvhost.exe
                              "fontdrvhost.exe"
                              1⤵
                                PID:792

                              Network

                              MITRE ATT&CK Enterprise v6

                              Replay Monitor

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                              Downloads

                              • C:\Users\Admin\AppData\Local\Temp\e56a3b7.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Users\Admin\AppData\Local\Temp\e56a3b7.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Users\Admin\AppData\Local\Temp\e56f774.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Users\Admin\AppData\Local\Temp\e56f774.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Users\Admin\AppData\Local\Temp\e56fa05.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Users\Admin\AppData\Local\Temp\e56fa05.exe

                                Filesize

                                97KB

                                MD5

                                8b03c3192f0284c0ebacf3ee289fff05

                                SHA1

                                010155740bb85aaeafbcc80109ad51aef8fab0a7

                                SHA256

                                ca95957611984f9c8a03c76f27018a597c37000b59ed83860bbf06fcb8928254

                                SHA512

                                7b470f8ca8406b18ec21cd953d24c39175701da3c8c829d2551743559168fe70320b729cc2dc4249f094794102852cbda404f194e6ec99108eea7e2db9b5a6f6

                              • C:\Windows\SYSTEM.INI

                                Filesize

                                257B

                                MD5

                                e2749f04818966d7c7c813b95073749f

                                SHA1

                                fb5ad36ab8f8324b441574afe49338995494b041

                                SHA256

                                b26514a4608a92ac5a0f12c107d665fd220ba7de615aedd954dffcd20e695b9d

                                SHA512

                                5ae787de60138dfd3036b3ba1028ed4018393c981ddac868050394c4959df3f0d8113a42d1d7bd0c6bcb4e324d11a0161a8aa0fa2a187efc5534feeaa1a007c7

                              • memory/1840-137-0x0000000010000000-0x0000000010020000-memory.dmp

                                Filesize

                                128KB

                              • memory/3808-150-0x0000000000400000-0x0000000000412000-memory.dmp

                                Filesize

                                72KB

                              • memory/3808-148-0x0000000000730000-0x00000000017EA000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/3808-154-0x0000000000730000-0x00000000017EA000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/3808-152-0x0000000000730000-0x00000000017EA000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/3808-151-0x0000000000730000-0x00000000017EA000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/4188-144-0x0000000000400000-0x0000000000412000-memory.dmp

                                Filesize

                                72KB

                              • memory/4188-153-0x0000000000400000-0x0000000000412000-memory.dmp

                                Filesize

                                72KB

                              • memory/4236-138-0x0000000000400000-0x0000000000412000-memory.dmp

                                Filesize

                                72KB

                              • memory/4236-139-0x00000000008D0000-0x000000000198A000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/4236-136-0x00000000008D0000-0x000000000198A000-memory.dmp

                                Filesize

                                16.7MB

                              • memory/4236-143-0x00000000008D0000-0x000000000198A000-memory.dmp

                                Filesize

                                16.7MB