Analysis

  • max time kernel
    132s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    19-02-2022 22:09

General

  • Target

    bc.vbs

  • Size

    169KB

  • MD5

    c8d448840522a0d83b0a8a32cfa50352

  • SHA1

    98f1145de8f3cc1764451ff65fa1c7051280c455

  • SHA256

    4ee7ce2fdad1a287ac5299129c80dfc3fedb2a5eb31a1af706d1fc466cb2839a

  • SHA512

    0ff8e8b9cd33ec9973fc14e55acf1648a3e6f7ce215157fb41aa737441f0b727934ab6a4cbae8ec7eff02872690bd72f2ae63cee1490b79cbd952b53e937bebd

Score
10/10
upx

Malware Config

Signatures

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in Windows directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:660
    • C:\Windows\system32\winlogon.exe
      winlogon.exe
      1⤵
        PID:612
        • C:\Windows\system32\dwm.exe
          "dwm.exe"
          2⤵
            PID:1020
          • C:\Windows\system32\fontdrvhost.exe
            "fontdrvhost.exe"
            2⤵
              PID:792
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k DcomLaunch -p
            1⤵
              PID:780
              • C:\Windows\System32\RuntimeBroker.exe
                C:\Windows\System32\RuntimeBroker.exe -Embedding
                2⤵
                  PID:3420
                • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
                  "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
                  2⤵
                    PID:3352
                  • C:\Windows\System32\RuntimeBroker.exe
                    C:\Windows\System32\RuntimeBroker.exe -Embedding
                    2⤵
                      PID:3748
                    • C:\Windows\System32\RuntimeBroker.exe
                      C:\Windows\System32\RuntimeBroker.exe -Embedding
                      2⤵
                        PID:384
                      • C:\Windows\system32\backgroundTaskHost.exe
                        "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppXmtcan0h2tfbfy7k9kn8hbxb6dmzz1zh0.mca
                        2⤵
                          PID:788
                        • C:\Windows\system32\backgroundTaskHost.exe
                          "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:CortanaUI.AppX3bn25b6f886wmg6twh46972vprk9tnbf.mca
                          2⤵
                            PID:1260
                          • C:\Windows\System32\RuntimeBroker.exe
                            C:\Windows\System32\RuntimeBroker.exe -Embedding
                            2⤵
                              PID:4512
                            • C:\Windows\system32\SppExtComObj.exe
                              C:\Windows\system32\SppExtComObj.exe -Embedding
                              2⤵
                                PID:4540
                              • C:\Windows\system32\DllHost.exe
                                C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                2⤵
                                  PID:4136
                                • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
                                  "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
                                  2⤵
                                    PID:3496
                                  • C:\Windows\system32\DllHost.exe
                                    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
                                    2⤵
                                      PID:3252
                                  • C:\Windows\system32\fontdrvhost.exe
                                    "fontdrvhost.exe"
                                    1⤵
                                      PID:800
                                    • C:\Windows\system32\svchost.exe
                                      C:\Windows\system32\svchost.exe -k DcomLaunch -p -s LSM
                                      1⤵
                                        PID:944
                                      • C:\Windows\system32\svchost.exe
                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s gpsvc
                                        1⤵
                                          PID:536
                                        • C:\Windows\System32\svchost.exe
                                          C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s lmhosts
                                          1⤵
                                            PID:428
                                          • C:\Windows\System32\svchost.exe
                                            C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService
                                            1⤵
                                              PID:996
                                            • C:\Windows\system32\svchost.exe
                                              C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc
                                              1⤵
                                                PID:1128
                                              • C:\Windows\system32\svchost.exe
                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s ProfSvc
                                                1⤵
                                                  PID:1136
                                                • C:\Windows\System32\svchost.exe
                                                  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s StorSvc
                                                  1⤵
                                                    PID:2268
                                                  • C:\Windows\system32\MusNotification.exe
                                                    C:\Windows\system32\MusNotification.exe
                                                    1⤵
                                                      PID:5084
                                                    • C:\Windows\system32\svchost.exe
                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s wlidsvc
                                                      1⤵
                                                        PID:3672
                                                      • C:\Windows\system32\svchost.exe
                                                        C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
                                                        1⤵
                                                          PID:1744
                                                        • C:\Windows\System32\svchost.exe
                                                          C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
                                                          1⤵
                                                            PID:2392
                                                          • C:\Windows\system32\svchost.exe
                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s CDPSvc
                                                            1⤵
                                                              PID:3820
                                                            • C:\Windows\system32\svchost.exe
                                                              C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
                                                              1⤵
                                                                PID:3760
                                                              • C:\Windows\system32\svchost.exe
                                                                C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
                                                                1⤵
                                                                  PID:2800
                                                                • C:\Windows\Explorer.EXE
                                                                  C:\Windows\Explorer.EXE
                                                                  1⤵
                                                                    PID:3024
                                                                    • C:\Windows\System32\WScript.exe
                                                                      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bc.vbs"
                                                                      2⤵
                                                                      • Checks computer location settings
                                                                      • Suspicious use of WriteProcessMemory
                                                                      PID:940
                                                                      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
                                                                        "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
                                                                        3⤵
                                                                        • Executes dropped EXE
                                                                        • Suspicious behavior: EnumeratesProcesses
                                                                        • Suspicious behavior: MapViewOfSection
                                                                        • Suspicious use of AdjustPrivilegeToken
                                                                        • Suspicious use of WriteProcessMemory
                                                                        PID:544
                                                                        • C:\Windows\SysWOW64\WerFault.exe
                                                                          C:\Windows\SysWOW64\WerFault.exe -u -p 544 -s 288
                                                                          4⤵
                                                                          • Program crash
                                                                          • Checks processor information in registry
                                                                          • Enumerates system info in registry
                                                                          • Suspicious behavior: EnumeratesProcesses
                                                                          • Suspicious use of AdjustPrivilegeToken
                                                                          PID:4644
                                                                  • C:\Windows\system32\svchost.exe
                                                                    C:\Windows\system32\svchost.exe -k netsvcs -p -s WpnService
                                                                    1⤵
                                                                      PID:2736
                                                                    • C:\Windows\System32\svchost.exe
                                                                      C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s TrkWks
                                                                      1⤵
                                                                        PID:2724
                                                                      • C:\Windows\system32\svchost.exe
                                                                        C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
                                                                        1⤵
                                                                          PID:2716
                                                                        • C:\Windows\system32\svchost.exe
                                                                          C:\Windows\system32\svchost.exe -k netsvcs -p -s LanmanServer
                                                                          1⤵
                                                                            PID:2704
                                                                          • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe
                                                                            "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service
                                                                            1⤵
                                                                              PID:2660
                                                                            • C:\Windows\system32\svchost.exe
                                                                              C:\Windows\system32\svchost.exe -k NetworkService -p -s CryptSvc
                                                                              1⤵
                                                                                PID:2652
                                                                              • C:\Windows\system32\svchost.exe
                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s IKEEXT
                                                                                1⤵
                                                                                  PID:2548
                                                                                • C:\Windows\system32\svchost.exe
                                                                                  C:\Windows\system32\svchost.exe -k NetworkServiceNetworkRestricted -p -s PolicyAgent
                                                                                  1⤵
                                                                                    PID:2536
                                                                                  • C:\Windows\system32\taskhostw.exe
                                                                                    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
                                                                                    1⤵
                                                                                      PID:2432
                                                                                    • C:\Windows\system32\svchost.exe
                                                                                      C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                                                                                      1⤵
                                                                                        PID:2356
                                                                                      • C:\Windows\system32\sihost.exe
                                                                                        sihost.exe
                                                                                        1⤵
                                                                                          PID:2340
                                                                                        • C:\Windows\system32\svchost.exe
                                                                                          C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s WinHttpAutoProxySvc
                                                                                          1⤵
                                                                                            PID:2120
                                                                                          • C:\Windows\System32\svchost.exe
                                                                                            C:\Windows\System32\svchost.exe -k NetworkService -p -s LanmanWorkstation
                                                                                            1⤵
                                                                                              PID:2104
                                                                                            • C:\Windows\System32\svchost.exe
                                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc
                                                                                              1⤵
                                                                                                PID:2096
                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                C:\Windows\system32\svchost.exe -k LocalServiceNoNetworkFirewall -p
                                                                                                1⤵
                                                                                                  PID:2056
                                                                                                • C:\Windows\System32\spoolsv.exe
                                                                                                  C:\Windows\System32\spoolsv.exe
                                                                                                  1⤵
                                                                                                    PID:1728
                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                    C:\Windows\System32\svchost.exe -k netsvcs -p -s ShellHWDetection
                                                                                                    1⤵
                                                                                                      PID:2012
                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                      C:\Windows\system32\svchost.exe -k appmodel -p -s StateRepository
                                                                                                      1⤵
                                                                                                        PID:1956
                                                                                                      • C:\Windows\System32\svchost.exe
                                                                                                        C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                        1⤵
                                                                                                          PID:1936
                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                          C:\Windows\system32\svchost.exe -k NetworkService -p -s Dnscache
                                                                                                          1⤵
                                                                                                            PID:1920
                                                                                                          • C:\Windows\System32\svchost.exe
                                                                                                            C:\Windows\System32\svchost.exe -k LocalService -p -s netprofm
                                                                                                            1⤵
                                                                                                              PID:1800
                                                                                                            • C:\Windows\System32\svchost.exe
                                                                                                              C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p
                                                                                                              1⤵
                                                                                                                PID:1780
                                                                                                              • C:\Windows\System32\svchost.exe
                                                                                                                C:\Windows\System32\svchost.exe -k NetworkService -p -s NlaSvc
                                                                                                                1⤵
                                                                                                                  PID:1676
                                                                                                                • C:\Windows\system32\svchost.exe
                                                                                                                  C:\Windows\system32\svchost.exe -k LocalService -p -s FontCache
                                                                                                                  1⤵
                                                                                                                    PID:1644
                                                                                                                  • C:\Windows\System32\svchost.exe
                                                                                                                    C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s AudioEndpointBuilder
                                                                                                                    1⤵
                                                                                                                      PID:1628
                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s SENS
                                                                                                                      1⤵
                                                                                                                        PID:1588
                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s Dhcp
                                                                                                                        1⤵
                                                                                                                          PID:1540
                                                                                                                        • C:\Windows\System32\svchost.exe
                                                                                                                          C:\Windows\System32\svchost.exe -k netsvcs -p -s Themes
                                                                                                                          1⤵
                                                                                                                            PID:1432
                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                            C:\Windows\system32\svchost.exe -k LocalService -p -s EventSystem
                                                                                                                            1⤵
                                                                                                                              PID:1408
                                                                                                                            • C:\Windows\system32\svchost.exe
                                                                                                                              C:\Windows\system32\svchost.exe -k LocalService -p -s nsi
                                                                                                                              1⤵
                                                                                                                                PID:1396
                                                                                                                              • C:\Windows\system32\svchost.exe
                                                                                                                                C:\Windows\system32\svchost.exe -k netsvcs -p -s UserManager
                                                                                                                                1⤵
                                                                                                                                  PID:1304
                                                                                                                                • C:\Windows\System32\svchost.exe
                                                                                                                                  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted -p -s EventLog
                                                                                                                                  1⤵
                                                                                                                                    PID:1248
                                                                                                                                  • C:\Windows\system32\svchost.exe
                                                                                                                                    C:\Windows\system32\svchost.exe -k LocalService -p -s DispBrokerDesktopSvc
                                                                                                                                    1⤵
                                                                                                                                      PID:1224
                                                                                                                                    • C:\Windows\system32\svchost.exe
                                                                                                                                      C:\Windows\system32\svchost.exe -k netsvcs -p -s Schedule
                                                                                                                                      1⤵
                                                                                                                                        PID:1108
                                                                                                                                      • C:\Windows\system32\svchost.exe
                                                                                                                                        C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork -p
                                                                                                                                        1⤵
                                                                                                                                          PID:836
                                                                                                                                        • C:\Windows\system32\svchost.exe
                                                                                                                                          C:\Windows\system32\svchost.exe -k RPCSS -p
                                                                                                                                          1⤵
                                                                                                                                            PID:892
                                                                                                                                          • C:\Windows\SysWOW64\WerFault.exe
                                                                                                                                            C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 544 -ip 544
                                                                                                                                            1⤵
                                                                                                                                            • Suspicious use of NtCreateProcessExOtherParentProcess
                                                                                                                                            PID:1996
                                                                                                                                          • C:\Windows\system32\svchost.exe
                                                                                                                                            C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
                                                                                                                                            1⤵
                                                                                                                                            • Drops file in Windows directory
                                                                                                                                            • Suspicious use of AdjustPrivilegeToken
                                                                                                                                            PID:4340

                                                                                                                                          Network

                                                                                                                                          MITRE ATT&CK Enterprise v6

                                                                                                                                          Replay Monitor

                                                                                                                                          Loading Replay Monitor...

                                                                                                                                          Downloads

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

                                                                                                                                            MD5

                                                                                                                                            df455f0fa8fb3fa4e6699ad57ef54db6

                                                                                                                                            SHA1

                                                                                                                                            51a06248c251d614d3a81ac9d842ba807204d17c

                                                                                                                                            SHA256

                                                                                                                                            15068b86edc0473a4f96f109830318e0540af348197e2b65f2e90ff32cfb14a1

                                                                                                                                            SHA512

                                                                                                                                            f69dea5b68e4fc8737fc0e6ef48476d3ed0a5ebd2f9dccc9d966df137f9ffdbb51e413a0852c22399afab53ea8a2755664afdcee6897a1cf387a9a620481b2a6

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

                                                                                                                                            MD5

                                                                                                                                            df455f0fa8fb3fa4e6699ad57ef54db6

                                                                                                                                            SHA1

                                                                                                                                            51a06248c251d614d3a81ac9d842ba807204d17c

                                                                                                                                            SHA256

                                                                                                                                            15068b86edc0473a4f96f109830318e0540af348197e2b65f2e90ff32cfb14a1

                                                                                                                                            SHA512

                                                                                                                                            f69dea5b68e4fc8737fc0e6ef48476d3ed0a5ebd2f9dccc9d966df137f9ffdbb51e413a0852c22399afab53ea8a2755664afdcee6897a1cf387a9a620481b2a6

                                                                                                                                          • memory/544-131-0x0000000077272000-0x0000000077273000-memory.dmp

                                                                                                                                            Filesize

                                                                                                                                            4KB

                                                                                                                                          • memory/544-132-0x0000000077273000-0x0000000077274000-memory.dmp

                                                                                                                                            Filesize

                                                                                                                                            4KB

                                                                                                                                          • memory/4340-134-0x0000013129870000-0x0000013129880000-memory.dmp

                                                                                                                                            Filesize

                                                                                                                                            64KB

                                                                                                                                          • memory/4340-135-0x00000131298D0000-0x00000131298E0000-memory.dmp

                                                                                                                                            Filesize

                                                                                                                                            64KB

                                                                                                                                          • memory/4340-136-0x000001312BF90000-0x000001312BF94000-memory.dmp

                                                                                                                                            Filesize

                                                                                                                                            16KB