Analysis

  • max time kernel
    42s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 01:23

General

  • Target

    fa5cf7c1c4387f043c8e56eed7e5d7edfedc562d68a6f9d7c3d74aaf4d63bedf.exe

  • Size

    83KB

  • MD5

    3665e65c0248e4102425db89c37ae2a4

  • SHA1

    4bed1461233c3e2611432dfd55ad5c8f0be3b8d5

  • SHA256

    fa5cf7c1c4387f043c8e56eed7e5d7edfedc562d68a6f9d7c3d74aaf4d63bedf

  • SHA512

    e0abddbb5aacb2f567aea09400056f69cca65600ffb21088d993bc8385bcbda01ba18aa3fcbd5b060e406174258583afa9d0c521f28b7d5adcb66d942eda734a

  • SSDEEP

    1536:KLJ3LvzanlrQfLSrDzjpGdTG/Dbhgk1Gzp7B7X63eABoakkbv2Fb65R:uJ3LvkruinEwDSqGX7YeABROb65R

Score
10/10

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 1 IoCs
  • UPX packed file 4 IoCs

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

  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: MapViewOfSection 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\lsass.exe
    C:\Windows\system32\lsass.exe
    1⤵
      PID:476
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:460
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
          2⤵
            PID:1060
          • C:\Windows\system32\sppsvc.exe
            C:\Windows\system32\sppsvc.exe
            2⤵
              PID:1096
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
              2⤵
                PID:1768
              • C:\Windows\system32\taskhost.exe
                "taskhost.exe"
                2⤵
                  PID:1176
                • C:\Windows\System32\spoolsv.exe
                  C:\Windows\System32\spoolsv.exe
                  2⤵
                    PID:108
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k NetworkService
                    2⤵
                      PID:296
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k netsvcs
                      2⤵
                        PID:876
                      • C:\Windows\system32\svchost.exe
                        C:\Windows\system32\svchost.exe -k LocalService
                        2⤵
                          PID:852
                        • C:\Windows\System32\svchost.exe
                          C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                          2⤵
                            PID:804
                          • C:\Windows\System32\svchost.exe
                            C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                            2⤵
                              PID:764
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k RPCSS
                              2⤵
                                PID:680
                              • C:\Windows\system32\svchost.exe
                                C:\Windows\system32\svchost.exe -k DcomLaunch
                                2⤵
                                  PID:600
                              • C:\Windows\system32\winlogon.exe
                                winlogon.exe
                                1⤵
                                  PID:416
                                • C:\Windows\system32\csrss.exe
                                  %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
                                  1⤵
                                    PID:380
                                  • C:\Windows\system32\wininit.exe
                                    wininit.exe
                                    1⤵
                                      PID:368
                                      • C:\Windows\system32\lsm.exe
                                        C:\Windows\system32\lsm.exe
                                        2⤵
                                          PID:484
                                      • C:\Windows\system32\wbem\wmiprvse.exe
                                        C:\Windows\system32\wbem\wmiprvse.exe
                                        1⤵
                                          PID:1912
                                        • \\?\C:\Windows\system32\wbem\WMIADAP.EXE
                                          wmiadap.exe /F /T /R
                                          1⤵
                                            PID:1992
                                          • C:\Windows\Explorer.EXE
                                            C:\Windows\Explorer.EXE
                                            1⤵
                                              PID:1312
                                              • C:\Users\Admin\AppData\Local\Temp\fa5cf7c1c4387f043c8e56eed7e5d7edfedc562d68a6f9d7c3d74aaf4d63bedf.exe
                                                "C:\Users\Admin\AppData\Local\Temp\fa5cf7c1c4387f043c8e56eed7e5d7edfedc562d68a6f9d7c3d74aaf4d63bedf.exe"
                                                2⤵
                                                • Modifies firewall policy service
                                                • Drops startup file
                                                • Adds Run key to start application
                                                • Drops file in System32 directory
                                                • Suspicious behavior: EnumeratesProcesses
                                                • Suspicious behavior: MapViewOfSection
                                                • Suspicious use of AdjustPrivilegeToken
                                                • Suspicious use of WriteProcessMemory
                                                PID:2040
                                            • C:\Windows\system32\Dwm.exe
                                              "C:\Windows\system32\Dwm.exe"
                                              1⤵
                                                PID:1276

                                              Network

                                              MITRE ATT&CK Matrix ATT&CK v6

                                              Persistence

                                              Modify Existing Service

                                              1
                                              T1031

                                              Registry Run Keys / Startup Folder

                                              1
                                              T1060

                                              Defense Evasion

                                              Modify Registry

                                              2
                                              T1112

                                              Discovery

                                              System Information Discovery

                                              1
                                              T1082

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              • memory/2040-54-0x0000000000400000-0x0000000000494000-memory.dmp
                                                Filesize

                                                592KB

                                              • memory/2040-55-0x0000000075591000-0x0000000075593000-memory.dmp
                                                Filesize

                                                8KB

                                              • memory/2040-56-0x0000000000400000-0x0000000000494000-memory.dmp
                                                Filesize

                                                592KB

                                              • memory/2040-57-0x0000000000400000-0x0000000000494000-memory.dmp
                                                Filesize

                                                592KB

                                              • memory/2040-58-0x0000000000400000-0x0000000000494000-memory.dmp
                                                Filesize

                                                592KB