Analysis

  • max time kernel
    148s
  • max time network
    140s
  • 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 12:55

General

  • Target

    Antivirus_Upgrade_Cloud.2736a0cc3a2e1f.jse

  • Size

    161KB

  • MD5

    ed5481f4b64e048f09d5d9d880dafa23

  • SHA1

    9948c71e77c9a7551f9f3b976da5b0e5e5950afe

  • SHA256

    76c012f134e81138fb37ac3638488f309662efcc9bb4011ff8e54869f26bb119

  • SHA512

    addd60848f245d83c70a65414b3d676e92ffdb2f31aa2de3497b8cda69ddb3938874aac062005c66d81af2451c545a5c871db4a392815cd9e69707b0388cbea0

  • SSDEEP

    3072:5tCIP3D125lF+90AGp9K9zCdKuxkvhq8n8skOfx/bll25DftO5:PPz1GlF+9yjK9WBxkpq8n8mItO5

Malware Config

Signatures

  • Detect magniber ransomware 2 IoCs
  • Magniber Ransomware

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

  • Process spawned unexpected child process 8 IoCs

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

  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
  • Deletes System State backups 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Modifies extensions of user files 8 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 36 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:3456
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Modifies registry class
    PID:4568
    • C:\Windows\System32\cmd.exe
      /c fodhelper.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3552
      • C:\Windows\System32\fodhelper.exe
        fodhelper.exe
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Windows\system32\wscript.exe
          "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/lwdsfuc.dt
          4⤵
            PID:4660
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
      • Modifies registry class
      PID:3696
    • 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:3380
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:3292
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 3292 -s 356
              2⤵
              • Program crash
              PID:2728
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
            1⤵
            • Modifies registry class
            PID:3092
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
            • Modifies registry class
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2576
            • C:\Windows\System32\WScript.exe
              C:\Windows\System32\WScript.exe "C:\Users\Admin\AppData\Local\Temp\Antivirus_Upgrade_Cloud.2736a0cc3a2e1f.jse"
              2⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4716
          • C:\Windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
            • Modifies registry class
            PID:2620
          • C:\Windows\system32\svchost.exe
            C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
            1⤵
            • Modifies extensions of user files
            • Modifies registry class
            PID:2492
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
            • Modifies registry class
            PID:2480
            • C:\Windows\System32\cmd.exe
              /c fodhelper.exe
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4628
              • C:\Windows\System32\fodhelper.exe
                fodhelper.exe
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1320
                • C:\Windows\system32\wscript.exe
                  "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/lwdsfuc.dt
                  4⤵
                    PID:596
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -pss -s 440 -p 3292 -ip 3292
              1⤵
                PID:1360
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:4912
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} bootstatuspolicy ignoreallfailures
                1⤵
                • Process spawned unexpected child process
                • Modifies boot configuration data using bcdedit
                PID:4940
              • C:\Windows\system32\bcdedit.exe
                bcdedit /set {default} recoveryenabled no
                1⤵
                • Process spawned unexpected child process
                • Modifies boot configuration data using bcdedit
                PID:2600
              • C:\Windows\system32\wbadmin.exe
                wbadmin delete catalog -quiet
                1⤵
                • Process spawned unexpected child process
                • Deletes backup catalog
                PID:3524
              • C:\Windows\system32\wbadmin.exe
                wbadmin delete systemstatebackup -quiet
                1⤵
                • Process spawned unexpected child process
                • Deletes System State backups
                PID:2800
              • C:\Windows\system32\wbengine.exe
                "C:\Windows\system32\wbengine.exe"
                1⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:728
              • C:\Windows\System32\vdsldr.exe
                C:\Windows\System32\vdsldr.exe -Embedding
                1⤵
                  PID:1448
                • C:\Windows\System32\vds.exe
                  C:\Windows\System32\vds.exe
                  1⤵
                  • Checks SCSI registry key(s)
                  PID:3936
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  1⤵
                  • Process spawned unexpected child process
                  • Modifies boot configuration data using bcdedit
                  PID:5040
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} recoveryenabled no
                  1⤵
                  • Process spawned unexpected child process
                  • Modifies boot configuration data using bcdedit
                  PID:4260
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete catalog -quiet
                  1⤵
                  • Process spawned unexpected child process
                  • Deletes backup catalog
                  PID:1920
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete systemstatebackup -quiet
                  1⤵
                  • Process spawned unexpected child process
                  • Deletes System State backups
                  PID:2828

                Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Public\lwdsfuc.dt

                  Filesize

                  868B

                  MD5

                  df5084fd1e202103ed233fdae20b0e7f

                  SHA1

                  c5c80dd04b64c0f156866e92510a960fc239b09d

                  SHA256

                  afc959699eadc9a97f93851a1d924c15e4bc3aa7b1aee6f2f87e3b8a38dd3e3c

                  SHA512

                  f6ddc9db94fb89c188bffb9d4789a14a535bfaf93d05a4922a5331e63405d929103f00c8427f85c0663930ef3db0d724de02bf400de8142a4f3b8c8ab18f7470

                • memory/596-149-0x0000000000000000-mapping.dmp

                • memory/1068-151-0x0000000000000000-mapping.dmp

                • memory/1320-148-0x0000000000000000-mapping.dmp

                • memory/2480-135-0x0000021FE0B20000-0x0000021FE0B2A000-memory.dmp

                  Filesize

                  40KB

                • memory/4660-152-0x0000000000000000-mapping.dmp

                • memory/4716-132-0x00007FF8148F0000-0x00007FF8153B1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/4716-134-0x0000017193130000-0x0000017194130000-memory.dmp

                  Filesize

                  16.0MB

                • memory/4716-146-0x00007FF8148F0000-0x00007FF8153B1000-memory.dmp

                  Filesize

                  10.8MB

                • memory/4716-147-0x00007FF8148F0000-0x00007FF8153B1000-memory.dmp

                  Filesize

                  10.8MB