Analysis

  • max time kernel
    148s
  • max time network
    142s
  • 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 02:31

General

  • Target

    SYSTEM.Security.Database.Upgrade.Win10.0_1.jse

  • Size

    192KB

  • MD5

    b40966619d66f80774ebf817c3316acc

  • SHA1

    cdc90f17b5a54005993a4db61ac60e0b905f8416

  • SHA256

    5472bce876d0758fb1379260504b791a3b8c95b87fc365f5ce8c3a6424facd34

  • SHA512

    a489b19a01b66807e3cc5af17abdc679e72d34139b47f5face96ac68cf183f5d790d24adb065db9327dd82cde24532c3e193a716a5212df310f90eb7e241b88e

  • SSDEEP

    6144:9a6398SbpjPvtKLqAMFHEbbz5ek3/Auyn5Ia:xnvkwdizUk3/Auynqa

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 42 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 19 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\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Modifies registry class
    PID:3808
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Modifies registry class
    PID:4684
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
      PID:3556
    • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
      "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
      1⤵
        PID:3392
      • 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 744
            2⤵
            • Program crash
            PID:1092
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
          1⤵
          • Modifies registry class
          PID:3092
          • C:\Windows\System32\cmd.exe
            /c fodhelper.exe
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3764
            • C:\Windows\System32\fodhelper.exe
              fodhelper.exe
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4160
              • C:\Windows\system32\wscript.exe
                "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/mfbtkxi.wmv
                4⤵
                  PID:3416
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2804
            • C:\Windows\System32\WScript.exe
              C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\Temp\SYSTEM.Security.Database.Upgrade.Win10.0_1.jse"
              2⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4460
          • C:\Windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
            • Modifies registry class
            PID:2812
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
            • Modifies registry class
            PID:2560
            • C:\Windows\System32\cmd.exe
              /c fodhelper.exe
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4784
              • C:\Windows\System32\fodhelper.exe
                fodhelper.exe
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:836
                • C:\Windows\system32\wscript.exe
                  "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/pgpepblqb.wmv
                  4⤵
                    PID:2780
            • C:\Windows\system32\sihost.exe
              sihost.exe
              1⤵
              • Modifies extensions of user files
              • Modifies registry class
              PID:2528
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -pss -s 460 -p 3304 -ip 3304
              1⤵
                PID:1784
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1168
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                1⤵
                • Process spawned unexpected child process
                • Modifies boot configuration data using bcdedit
                PID:1652
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled no
                1⤵
                • Process spawned unexpected child process
                • Modifies boot configuration data using bcdedit
                PID:1788
              • C:\Windows\system32\wbadmin.exe
                wbadmin delete catalog -quiet
                1⤵
                • Process spawned unexpected child process
                • Deletes backup catalog
                PID:8
              • C:\Windows\system32\wbadmin.exe
                wbadmin delete systemstatebackup -quiet
                1⤵
                • Process spawned unexpected child process
                • Deletes System State backups
                PID:2612
              • C:\Windows\system32\wbengine.exe
                "C:\Windows\system32\wbengine.exe"
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4904
              • C:\Windows\System32\vdsldr.exe
                C:\Windows\System32\vdsldr.exe -Embedding
                1⤵
                  PID:3580
                • C:\Windows\System32\vds.exe
                  C:\Windows\System32\vds.exe
                  1⤵
                  • Checks SCSI registry key(s)
                  PID:2416

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Public\mfbtkxi.wmv

                  Filesize

                  868B

                  MD5

                  581973cdfb4720018293584fa82b6973

                  SHA1

                  a280dec72dff08d9448d866e6e3011241c5794bc

                  SHA256

                  1972fe56babf7575426b0690a118c342ef8cff2e463b16a8cf3071c3229d510b

                  SHA512

                  6e115f41e19dc2e90d8800fb3089f4b83d048c41c25e994b8c23c409bb30eede25bf208d61315574253002a287abef3dd876c9673d6ff928a70f46608ab8fd80

                • memory/836-152-0x0000000000000000-mapping.dmp

                • memory/2528-135-0x000002B397590000-0x000002B39759B000-memory.dmp

                  Filesize

                  44KB

                • memory/2780-153-0x0000000000000000-mapping.dmp

                • memory/3416-150-0x0000000000000000-mapping.dmp

                • memory/4160-149-0x0000000000000000-mapping.dmp

                • memory/4460-132-0x00007FF883FC0000-0x00007FF884A81000-memory.dmp

                  Filesize

                  10.8MB

                • memory/4460-134-0x0000027D00000000-0x0000027D01000000-memory.dmp

                  Filesize

                  16.0MB

                • memory/4460-145-0x00007FF883FC0000-0x00007FF884A81000-memory.dmp

                  Filesize

                  10.8MB

                • memory/4460-147-0x0000027D00000000-0x0000027D01000000-memory.dmp

                  Filesize

                  16.0MB

                • memory/4460-148-0x00007FF883FC0000-0x00007FF884A81000-memory.dmp

                  Filesize

                  10.8MB