Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 07:33

General

  • Target

    1.exe

  • Size

    53KB

  • MD5

    afe19f73bf4bcbd0dd9e40202b3bb459

  • SHA1

    1e4c3400c98b5c7454edd6f7e384e8b0fdd39083

  • SHA256

    65c45e2cc82cfdc0f073223eb81cada3b3689273bc442a5a95b374ab9fe06fb7

  • SHA512

    a9c274c1519293017e6840e14e97ecc667c1936b3f63824f97aae04a9473fd2627813d2b5ada7b203fcea4b2fb591b35300fdb91dd582d74e9882c534c76199b

  • SSDEEP

    768:d6Eu6jk3mjA9o5dpgqXtcGPhFDhgYBod9OxYX1q:djLU9q3gcLPhhhgYW91

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 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 4 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 33 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
    • Modifies registry class
    PID:2304
  • C:\Windows\System32\RuntimeBroker.exe
    C:\Windows\System32\RuntimeBroker.exe -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:3392
  • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
    "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
    1⤵
      PID:3324
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:3228
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3228 -s 404
          2⤵
          • Program crash
          PID:5008
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
        1⤵
        • Modifies registry class
        PID:2708
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:3040
        • C:\Users\Admin\AppData\Local\Temp\1.exe
          "C:\Users\Admin\AppData\Local\Temp\1.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4972
          • C:\Windows\System32\Conhost.exe
            \??\C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
            3⤵
              PID:3856
        • C:\Windows\System32\RuntimeBroker.exe
          C:\Windows\System32\RuntimeBroker.exe -Embedding
          1⤵
          • Modifies registry class
          PID:4768
          • C:\Windows\System32\cmd.exe
            /c fodhelper.exe
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3088
            • C:\Windows\System32\fodhelper.exe
              fodhelper.exe
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4872
              • C:\Windows\system32\wscript.exe
                "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/zixjszbz.rdb
                4⤵
                  PID:5056
          • C:\Windows\System32\RuntimeBroker.exe
            C:\Windows\System32\RuntimeBroker.exe -Embedding
            1⤵
            • Modifies registry class
            PID:3788
          • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
            "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
            1⤵
              PID:3480
            • C:\Windows\system32\taskhostw.exe
              taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
              1⤵
              • Modifies extensions of user files
              • Modifies registry class
              PID:2432
              • C:\Windows\System32\cmd.exe
                /c fodhelper.exe
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:536
                • C:\Windows\System32\fodhelper.exe
                  fodhelper.exe
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2256
                  • C:\Windows\system32\wscript.exe
                    "wscript.exe" /B /E:VBScript.Encode ../../Users/Public/yenoeeduuda.rdb
                    4⤵
                      PID:3184
              • C:\Windows\system32\svchost.exe
                C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
                1⤵
                • Modifies registry class
                PID:2328
              • C:\Windows\system32\WerFault.exe
                C:\Windows\system32\WerFault.exe -pss -s 424 -p 3228 -ip 3228
                1⤵
                  PID:784
                • C:\Windows\system32\vssvc.exe
                  C:\Windows\system32\vssvc.exe
                  1⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:3920
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} bootstatuspolicy ignoreallfailures
                  1⤵
                  • Process spawned unexpected child process
                  • Modifies boot configuration data using bcdedit
                  PID:1836
                • C:\Windows\system32\bcdedit.exe
                  bcdedit /set {default} recoveryenabled no
                  1⤵
                  • Process spawned unexpected child process
                  • Modifies boot configuration data using bcdedit
                  PID:1128
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete systemstatebackup -quiet
                  1⤵
                  • Process spawned unexpected child process
                  • Deletes System State backups
                  PID:1212
                • C:\Windows\system32\wbadmin.exe
                  wbadmin delete catalog -quiet
                  1⤵
                  • Process spawned unexpected child process
                  • Deletes backup catalog
                  PID:2152
                • C:\Windows\system32\wbengine.exe
                  "C:\Windows\system32\wbengine.exe"
                  1⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:2680
                • C:\Windows\System32\vdsldr.exe
                  C:\Windows\System32\vdsldr.exe -Embedding
                  1⤵
                    PID:2576
                  • C:\Windows\System32\vds.exe
                    C:\Windows\System32\vds.exe
                    1⤵
                    • Checks SCSI registry key(s)
                    PID:3448

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • C:\Users\Public\yenoeeduuda.rdb

                    Filesize

                    879B

                    MD5

                    098d0faaa89567d9a83140ffa9d4f847

                    SHA1

                    16f770710dde9c38de9aae7fc69e748d8f812e4f

                    SHA256

                    c4e660d36e2736640e03ab63ea7bbd985a3232da41c3237afb900609a367f6b5

                    SHA512

                    d424a32050f9c9b7bebf2cb69021125b747f0d569e14d4c27e392b9729c6ada665a6b7d5cbf469c3424f41a299a61d4f9ca56be4be5b6df45da62c6c37662781

                  • memory/2256-146-0x0000000000000000-mapping.dmp

                  • memory/2304-133-0x000001FE36370000-0x000001FE3637B000-memory.dmp

                    Filesize

                    44KB

                  • memory/3184-147-0x0000000000000000-mapping.dmp

                  • memory/4872-149-0x0000000000000000-mapping.dmp

                  • memory/4972-132-0x00000000001B0000-0x00000000001BB000-memory.dmp

                    Filesize

                    44KB

                  • memory/5056-150-0x0000000000000000-mapping.dmp