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Analysis

  • max time kernel
    83s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    19-07-2021 22:53

General

  • Target

    8 (2).exe

  • Size

    3.0MB

  • MD5

    bb072cad921aa5ce8b97706ce01bc570

  • SHA1

    18bf034906c1341b7817e7361ad27a4425d820bd

  • SHA256

    817a50d00909383bbef41e6f4e61b527d55f0873bcf745b29dbba75f52fe2e97

  • SHA512

    d40e5f77d882ed29bd9de5a6848072e2f81cd02176955e2b1a4aedcdf4eb687d77bebe33cef0c7d702bc828181755f86e2564523d476adbb785f396a5ce1d474

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • ASPack v2.12-2.42 14 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Downloads MZ/PE file
  • Executes dropped EXE 22 IoCs
  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 5 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Modifies data under HKEY_USERS 6 IoCs
  • Modifies registry class 13 IoCs
  • Modifies system certificate store 2 TTPs 11 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
      PID:468
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:876
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k SystemNetworkService
        2⤵
        • Checks processor information in registry
        • Modifies data under HKEY_USERS
        • Modifies registry class
        PID:1688
    • C:\Users\Admin\AppData\Local\Temp\8 (2).exe
      "C:\Users\Admin\AppData\Local\Temp\8 (2).exe"
      1⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
        "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1976
        • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\setup_install.exe
          "C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\setup_install.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:1780
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c sonia_1.exe
            4⤵
            • Loads dropped DLL
            PID:112
            • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_1.exe
              sonia_1.exe
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:1752
              • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_1.exe
                "C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_1.exe" -a
                6⤵
                • Executes dropped EXE
                • Loads dropped DLL
                PID:1708
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c sonia_2.exe
            4⤵
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:928
            • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_2.exe
              sonia_2.exe
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks SCSI registry key(s)
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: MapViewOfSection
              PID:1572
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c sonia_7.exe
            4⤵
              PID:1052
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_6.exe
              4⤵
              • Loads dropped DLL
              PID:1824
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_5.exe
              4⤵
              • Loads dropped DLL
              PID:1880
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_4.exe
              4⤵
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:1112
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c sonia_3.exe
              4⤵
              • Loads dropped DLL
              PID:1168
      • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_6.exe
        sonia_6.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        PID:1840
        • C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe
          C:\Users\Admin\AppData\Local\Temp\jfiag3g_gg.exe /scookiestxt C:\Users\Admin\AppData\Local\Temp\fj4ghga23_fsa.txt
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:956
      • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_5.exe
        sonia_5.exe
        1⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Modifies system certificate store
        PID:384
        • C:\Users\Admin\Documents\dQIF5bjEJe1mFl1P9umcdRRt.exe
          "C:\Users\Admin\Documents\dQIF5bjEJe1mFl1P9umcdRRt.exe"
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2068
        • C:\Users\Admin\Documents\bnO1Czlq1qisXPmelmoJDk03.exe
          "C:\Users\Admin\Documents\bnO1Czlq1qisXPmelmoJDk03.exe"
          2⤵
          • Executes dropped EXE
          PID:2088
        • C:\Users\Admin\Documents\FSpcoPnswP34_CrDsi_0cmfy.exe
          "C:\Users\Admin\Documents\FSpcoPnswP34_CrDsi_0cmfy.exe"
          2⤵
          • Executes dropped EXE
          PID:2100
        • C:\Users\Admin\Documents\yQ2v35ZnuLqqqojknUSJCBzY.exe
          "C:\Users\Admin\Documents\yQ2v35ZnuLqqqojknUSJCBzY.exe"
          2⤵
          • Executes dropped EXE
          PID:2216
        • C:\Users\Admin\Documents\5Q6oYgfBVWPIkPXhxCsCFLgh.exe
          "C:\Users\Admin\Documents\5Q6oYgfBVWPIkPXhxCsCFLgh.exe"
          2⤵
          • Executes dropped EXE
          PID:2196
        • C:\Users\Admin\Documents\zbhz2I7QIIyYLjlCBTW7Yhyd.exe
          "C:\Users\Admin\Documents\zbhz2I7QIIyYLjlCBTW7Yhyd.exe"
          2⤵
          • Executes dropped EXE
          PID:2188
        • C:\Users\Admin\Documents\5NH0bNhduan6WmWXKX_25TLM.exe
          "C:\Users\Admin\Documents\5NH0bNhduan6WmWXKX_25TLM.exe"
          2⤵
          • Executes dropped EXE
          PID:2180
        • C:\Users\Admin\Documents\uACt1MlbhxsS5D9pcPZ9Qh22.exe
          "C:\Users\Admin\Documents\uACt1MlbhxsS5D9pcPZ9Qh22.exe"
          2⤵
          • Executes dropped EXE
          PID:2168
        • C:\Users\Admin\Documents\kGVSgFhC7N6Hnu2ubThaYtpy.exe
          "C:\Users\Admin\Documents\kGVSgFhC7N6Hnu2ubThaYtpy.exe"
          2⤵
            PID:2152
          • C:\Users\Admin\Documents\hFnDSROO556cpuLKEQMZy077.exe
            "C:\Users\Admin\Documents\hFnDSROO556cpuLKEQMZy077.exe"
            2⤵
              PID:2144
            • C:\Users\Admin\Documents\ITZ6tLD87SH3tPUZb8KEJ3kG.exe
              "C:\Users\Admin\Documents\ITZ6tLD87SH3tPUZb8KEJ3kG.exe"
              2⤵
                PID:2124
              • C:\Users\Admin\Documents\ZRDjh1noNj493PtpqR6YCoNb.exe
                "C:\Users\Admin\Documents\ZRDjh1noNj493PtpqR6YCoNb.exe"
                2⤵
                • Executes dropped EXE
                PID:2116
              • C:\Users\Admin\Documents\RdZEbzAiQD9BObVOzDoDUZ8A.exe
                "C:\Users\Admin\Documents\RdZEbzAiQD9BObVOzDoDUZ8A.exe"
                2⤵
                • Executes dropped EXE
                PID:2232
              • C:\Users\Admin\Documents\Wyr5KW1_np0rFg3IeLxZp4ox.exe
                "C:\Users\Admin\Documents\Wyr5KW1_np0rFg3IeLxZp4ox.exe"
                2⤵
                  PID:2508
                • C:\Users\Admin\Documents\SaUH3EW3yA8jkzk3iTrOJXJH.exe
                  "C:\Users\Admin\Documents\SaUH3EW3yA8jkzk3iTrOJXJH.exe"
                  2⤵
                    PID:2496
                  • C:\Users\Admin\Documents\MzyFilR0rynZHQMfyAOlcLtq.exe
                    "C:\Users\Admin\Documents\MzyFilR0rynZHQMfyAOlcLtq.exe"
                    2⤵
                    • Executes dropped EXE
                    PID:2484
                  • C:\Users\Admin\Documents\LEc3nC7wiiFFlYevuHyZJWCO.exe
                    "C:\Users\Admin\Documents\LEc3nC7wiiFFlYevuHyZJWCO.exe"
                    2⤵
                      PID:2472
                    • C:\Users\Admin\Documents\wiQqqlP5B_xv2IsRbkE73Y8L.exe
                      "C:\Users\Admin\Documents\wiQqqlP5B_xv2IsRbkE73Y8L.exe"
                      2⤵
                        PID:2592
                      • C:\Users\Admin\Documents\p9U_WxhqvWGTDjZg4h3a07wo.exe
                        "C:\Users\Admin\Documents\p9U_WxhqvWGTDjZg4h3a07wo.exe"
                        2⤵
                          PID:2556
                        • C:\Users\Admin\Documents\AHZXjSunCYev1f6YcbY_G_3T.exe
                          "C:\Users\Admin\Documents\AHZXjSunCYev1f6YcbY_G_3T.exe"
                          2⤵
                            PID:2544
                            • C:\Users\Admin\Documents\AHZXjSunCYev1f6YcbY_G_3T.exe
                              "C:\Users\Admin\Documents\AHZXjSunCYev1f6YcbY_G_3T.exe" -a
                              3⤵
                                PID:2828
                          • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_3.exe
                            sonia_3.exe
                            1⤵
                            • Executes dropped EXE
                            • Loads dropped DLL
                            • Checks processor information in registry
                            • Modifies system certificate store
                            • Suspicious behavior: EnumeratesProcesses
                            PID:960
                            • C:\Windows\SysWOW64\cmd.exe
                              "C:\Windows\System32\cmd.exe" /c taskkill /im sonia_3.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_3.exe" & del C:\ProgramData\*.dll & exit
                              2⤵
                                PID:2440
                                • C:\Windows\SysWOW64\taskkill.exe
                                  taskkill /im sonia_3.exe /f
                                  3⤵
                                  • Kills process with taskkill
                                  PID:2780
                            • C:\Users\Admin\AppData\Local\Temp\7zS8B7484B4\sonia_4.exe
                              sonia_4.exe
                              1⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:432
                              • C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe
                                "C:\Users\Admin\AppData\Local\Temp\LzmwAqmV.exe"
                                2⤵
                                • Executes dropped EXE
                                • Loads dropped DLL
                                PID:1576
                                • C:\Users\Admin\AppData\Local\Temp\jhuuee.exe
                                  "C:\Users\Admin\AppData\Local\Temp\jhuuee.exe"
                                  3⤵
                                    PID:2416
                              • C:\Windows\system32\rUNdlL32.eXe
                                rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                                1⤵
                                • Process spawned unexpected child process
                                PID:748
                                • C:\Windows\SysWOW64\rundll32.exe
                                  rUNdlL32.eXe "C:\Users\Admin\AppData\Local\Temp\axhub.dll",main
                                  2⤵
                                  • Loads dropped DLL
                                  • Modifies registry class
                                  • Suspicious behavior: EnumeratesProcesses
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:1380
                              • C:\Users\Admin\AppData\Local\Temp\C716.exe
                                C:\Users\Admin\AppData\Local\Temp\C716.exe
                                1⤵
                                  PID:2852

                                Network

                                MITRE ATT&CK Enterprise v6

                                Replay Monitor

                                Loading Replay Monitor...

                                Downloads

                                • memory/432-141-0x0000000001080000-0x0000000001081000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/432-157-0x000000001B140000-0x000000001B142000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/876-183-0x00000000008C0000-0x000000000090C000-memory.dmp

                                  Filesize

                                  304KB

                                • memory/876-184-0x0000000001B10000-0x0000000001B81000-memory.dmp

                                  Filesize

                                  452KB

                                • memory/960-170-0x0000000000400000-0x00000000008F2000-memory.dmp

                                  Filesize

                                  4.9MB

                                • memory/960-167-0x0000000000310000-0x00000000003AD000-memory.dmp

                                  Filesize

                                  628KB

                                • memory/1196-180-0x0000000002A60000-0x0000000002A75000-memory.dmp

                                  Filesize

                                  84KB

                                • memory/1380-181-0x0000000000610000-0x0000000000711000-memory.dmp

                                  Filesize

                                  1.0MB

                                • memory/1380-182-0x0000000000780000-0x00000000007DD000-memory.dmp

                                  Filesize

                                  372KB

                                • memory/1572-168-0x0000000000240000-0x0000000000249000-memory.dmp

                                  Filesize

                                  36KB

                                • memory/1572-169-0x0000000000400000-0x0000000000896000-memory.dmp

                                  Filesize

                                  4.6MB

                                • memory/1576-188-0x00000000001D0000-0x00000000001D1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/1688-185-0x0000000000470000-0x00000000004E1000-memory.dmp

                                  Filesize

                                  452KB

                                • memory/1688-229-0x0000000001C10000-0x0000000001C2B000-memory.dmp

                                  Filesize

                                  108KB

                                • memory/1688-234-0x000007FEFC391000-0x000007FEFC393000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/1780-92-0x0000000000400000-0x000000000051D000-memory.dmp

                                  Filesize

                                  1.1MB

                                • memory/1780-99-0x000000006B280000-0x000000006B2A6000-memory.dmp

                                  Filesize

                                  152KB

                                • memory/1780-91-0x000000006B280000-0x000000006B2A6000-memory.dmp

                                  Filesize

                                  152KB

                                • memory/1780-89-0x000000006B440000-0x000000006B4CF000-memory.dmp

                                  Filesize

                                  572KB

                                • memory/1780-90-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                                  Filesize

                                  1.5MB

                                • memory/1780-94-0x0000000064940000-0x0000000064959000-memory.dmp

                                  Filesize

                                  100KB

                                • memory/1780-97-0x000000006B440000-0x000000006B4CF000-memory.dmp

                                  Filesize

                                  572KB

                                • memory/1780-96-0x0000000064940000-0x0000000064959000-memory.dmp

                                  Filesize

                                  100KB

                                • memory/1780-93-0x0000000064940000-0x0000000064959000-memory.dmp

                                  Filesize

                                  100KB

                                • memory/1780-95-0x0000000064940000-0x0000000064959000-memory.dmp

                                  Filesize

                                  100KB

                                • memory/1780-100-0x0000000000400000-0x000000000051D000-memory.dmp

                                  Filesize

                                  1.1MB

                                • memory/1780-98-0x000000006FE40000-0x000000006FFC6000-memory.dmp

                                  Filesize

                                  1.5MB

                                • memory/2000-60-0x0000000075B31000-0x0000000075B33000-memory.dmp

                                  Filesize

                                  8KB

                                • memory/2196-212-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2216-211-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

                                  Filesize

                                  4KB

                                • memory/2592-230-0x00000000003F0000-0x00000000003F1000-memory.dmp

                                  Filesize

                                  4KB