Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2022 02:58

General

  • Target

    SYSTEM.Security.Database.Upgrade.Win10.0.jse

  • Size

    185KB

  • MD5

    f6d2fc78661b55258fb704f66c9949e4

  • SHA1

    7c4608440e4afcb032890edd4deef18a0ce3c8dd

  • SHA256

    6a68217b951f9655e4a7ed13fcfc4696ac5d231450fe7d2be8b6a1d71425752c

  • SHA512

    9f66641f19e8046b19f7bffa056ec3e677aae853102dded94c22665381d0d2b65334c16c74d7b64df319b1518931d6ad281ad86c1fbc67ee6ba1984f67506dce

  • SSDEEP

    3072:dthtQYzUz8giIajyEPeR00t/+DYhRkEIKf+6yr3S1IuIDbHBX66vPYH/J25gfgbD:z73zUz8gCjyUeihSRkCy3H36HxgbD

Malware Config

Signatures

  • Detect magniber ransomware 3 IoCs
  • Magniber Ransomware

    Ransomware family widely seen in Asia being distributed by the Magnitude exploit kit.

  • Process spawned unexpected child process 4 IoCs

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

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Deletes System State backups 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 1 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Modifies registry class 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:3464
  • C:\Windows\system32\backgroundTaskHost.exe
    "C:\Windows\system32\backgroundTaskHost.exe" -ServerName:App.AppX53ypgrj20bgndg05hj3tc7z654myszwp.mca
    1⤵
      PID:4508
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
      • Modifies registry class
      PID:3764
    • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
      "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
      1⤵
        PID:3560
      • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
        "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
        1⤵
          PID:3400
        • C:\Windows\System32\WScript.exe
          C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\Temp\SYSTEM.Security.Database.Upgrade.Win10.0.jse"
          1⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4984
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3304
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 3304 -s 1004
              2⤵
              • Program crash
              PID:2988
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
            • Modifies registry class
            PID:3096
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
            • Modifies extensions of user files
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1124
            • C:\Windows\System32\cmd.exe
              /c fodhelper.exe
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:1080
              • C:\Windows\System32\fodhelper.exe
                fodhelper.exe
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:3204
                • C:\Windows\system32\wscript.exe
                  "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/qievfsh.gif
                  4⤵
                    PID:176
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
              • Modifies registry class
              PID:2912
              • C:\Windows\System32\cmd.exe
                /c fodhelper.exe
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:2364
                • C:\Windows\System32\fodhelper.exe
                  fodhelper.exe
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3648
                  • C:\Windows\system32\wscript.exe
                    "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/jzvixkbshv.gif
                    4⤵
                      PID:4608
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                1⤵
                • Modifies registry class
                PID:2844
              • C:\Windows\system32\sihost.exe
                sihost.exe
                1⤵
                • Modifies registry class
                PID:2808
                • C:\Windows\System32\cmd.exe
                  /c fodhelper.exe
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2508
                  • C:\Windows\System32\fodhelper.exe
                    fodhelper.exe
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3332
                    • C:\Windows\system32\wscript.exe
                      "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/whdnyiufnyit.gif
                      4⤵
                        PID:4388
                • C:\Windows\system32\WerFault.exe
                  C:\Windows\system32\WerFault.exe -pss -s 404 -p 3304 -ip 3304
                  1⤵
                    PID:2508
                  • C:\Windows\system32\vssvc.exe
                    C:\Windows\system32\vssvc.exe
                    1⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1716
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit /set {default} bootstatuspolicy ignoreallfailures
                    1⤵
                    • Process spawned unexpected child process
                    • Modifies boot configuration data using bcdedit
                    PID:1556
                  • C:\Windows\system32\bcdedit.exe
                    bcdedit /set {default} recoveryenabled no
                    1⤵
                    • Process spawned unexpected child process
                    • Modifies boot configuration data using bcdedit
                    PID:2816
                  • C:\Windows\system32\wbadmin.exe
                    wbadmin delete catalog -quiet
                    1⤵
                    • Process spawned unexpected child process
                    • Deletes backup catalog
                    PID:3476
                  • C:\Windows\system32\wbadmin.exe
                    wbadmin delete systemstatebackup -quiet
                    1⤵
                    • Process spawned unexpected child process
                    • Deletes System State backups
                    PID:4980
                  • C:\Windows\system32\wbengine.exe
                    "C:\Windows\system32\wbengine.exe"
                    1⤵
                    • Suspicious use of AdjustPrivilegeToken
                    PID:4068
                  • C:\Windows\System32\vdsldr.exe
                    C:\Windows\System32\vdsldr.exe -Embedding
                    1⤵
                      PID:5116
                    • C:\Windows\System32\vds.exe
                      C:\Windows\System32\vds.exe
                      1⤵
                      • Checks SCSI registry key(s)
                      PID:1808

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    • C:\Users\Public\jzvixkbshv.gif

                      Filesize

                      853B

                      MD5

                      e1364886ae80ad259f572645fb45e98b

                      SHA1

                      132dc959681181e7ab6dd6909046f53c5e9f69ad

                      SHA256

                      000ae2cfe01b7e4c5b1e01ad1a4c0aa0b223f373a1fecf13b8d052d55f9401a5

                      SHA512

                      632735d26425c0efa2f6a172625173d0e7bbc2d0b589cf0cfb2a3872a298edac6627596792daf4b3199248bd4fb83ada21a25f738a01b492ed95d19aea40890b

                    • memory/176-152-0x0000000000000000-mapping.dmp

                    • memory/2808-134-0x000001A900BD0000-0x000001A900BDA000-memory.dmp

                      Filesize

                      40KB

                    • memory/3204-151-0x0000000000000000-mapping.dmp

                    • memory/3332-153-0x0000000000000000-mapping.dmp

                    • memory/3648-148-0x0000000000000000-mapping.dmp

                    • memory/4388-154-0x0000000000000000-mapping.dmp

                    • memory/4608-149-0x0000000000000000-mapping.dmp

                    • memory/4984-132-0x00007FFE35E30000-0x00007FFE368F1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4984-147-0x000001C08059F000-0x000001C0805AA000-memory.dmp

                      Filesize

                      44KB

                    • memory/4984-146-0x00007FFE35E30000-0x00007FFE368F1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4984-142-0x00007FFE35E30000-0x00007FFE368F1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4984-133-0x000001C08059F000-0x000001C0805AA000-memory.dmp

                      Filesize

                      44KB