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Resubmissions

30/05/2024, 20:32

240530-zblgdahd7x 10

Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 20:32

General

  • Target

    tthyperRuntimedhcpSvc.exe

  • Size

    1.5MB

  • MD5

    7a4073a468cf2d6ae2836893f467c81d

  • SHA1

    ff54a200d4f6a1a696182f2cfde6e735b2580f37

  • SHA256

    af6a3a206daa66c291daac3dc17f29dd7d0e1504a92b6346b5c5fa252dcc3ef5

  • SHA512

    8df794241d4162850b5243b0844b3818a6ff010f2dda65bdae3a88a69e6f368c700c81997d781568652cb3b42ec98bd5d25ba86fec7d3b7a5856d459dba3bdd5

  • SSDEEP

    24576:6Rcf6gYLRV8nJ4BMFvJw184tEAXQKQq6i0c:6cyloWgvJw1Zsi

Malware Config

Signatures

  • Process spawned unexpected child process 15 IoCs

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 6 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 15 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\tthyperRuntimedhcpSvc.exe
    "C:\Users\Admin\AppData\Local\Temp\tthyperRuntimedhcpSvc.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\Migration\WTR\unsecapp.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:1968
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Media Player\RuntimeBroker.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:4808
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\backgroundTaskHost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:4316
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Public\fontdrvhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:1220
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\MSBuild\Microsoft\SppExtComObj.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of AdjustPrivilegeToken
      PID:4696
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\iEhViyqa8z.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4428
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:3980
        • C:\Windows\system32\w32tm.exe
          w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
          3⤵
            PID:452
          • C:\Windows\Migration\WTR\unsecapp.exe
            "C:\Windows\Migration\WTR\unsecapp.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2820
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 7 /tr "'C:\Windows\Migration\WTR\unsecapp.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1472
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\Migration\WTR\unsecapp.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4716
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\Windows\Migration\WTR\unsecapp.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2492
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Media Player\RuntimeBroker.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3184
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3504
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Windows Media Player\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4000
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\backgroundTaskHost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3648
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\backgroundTaskHost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2584
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Microsoft.NET\Primary Interop Assemblies\backgroundTaskHost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1716
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Users\Public\fontdrvhost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2312
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Public\fontdrvhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2496
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Users\Public\fontdrvhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2420
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 6 /tr "'C:\Program Files\MSBuild\Microsoft\SppExtComObj.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4288
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files\MSBuild\Microsoft\SppExtComObj.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1108
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 6 /tr "'C:\Program Files\MSBuild\Microsoft\SppExtComObj.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:468

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\MSBuild\Microsoft\SppExtComObj.exe

        Filesize

        1.5MB

        MD5

        7a4073a468cf2d6ae2836893f467c81d

        SHA1

        ff54a200d4f6a1a696182f2cfde6e735b2580f37

        SHA256

        af6a3a206daa66c291daac3dc17f29dd7d0e1504a92b6346b5c5fa252dcc3ef5

        SHA512

        8df794241d4162850b5243b0844b3818a6ff010f2dda65bdae3a88a69e6f368c700c81997d781568652cb3b42ec98bd5d25ba86fec7d3b7a5856d459dba3bdd5

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

        Filesize

        2KB

        MD5

        d85ba6ff808d9e5444a4b369f5bc2730

        SHA1

        31aa9d96590fff6981b315e0b391b575e4c0804a

        SHA256

        84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

        SHA512

        8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        62623d22bd9e037191765d5083ce16a3

        SHA1

        4a07da6872672f715a4780513d95ed8ddeefd259

        SHA256

        95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

        SHA512

        9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        e448fe0d240184c6597a31d3be2ced58

        SHA1

        372b8d8c19246d3e38cd3ba123cc0f56070f03cd

        SHA256

        c660f0db85a1e7f0f68db19868979bf50bd541531babf77a701e1b1ce5e6a391

        SHA512

        0b7f7eae7700d32b18eee3677cb7f89b46ace717fa7e6b501d6c47d54f15dff7e12b49f5a7d36a6ffe4c16165c7d55162db4f3621db545b6af638035752beab4

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        944B

        MD5

        d28a889fd956d5cb3accfbaf1143eb6f

        SHA1

        157ba54b365341f8ff06707d996b3635da8446f7

        SHA256

        21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

        SHA512

        0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

        Filesize

        496B

        MD5

        d98e03487c2bdab91270679ca24eda02

        SHA1

        8a471b9256bb4ddfcce85606e27797cb2fbc69cd

        SHA256

        03db3287e21797440f8c3d663d4258237f9f602c6a35a33f24a682263391cba8

        SHA512

        c277f640763b89625b08857961062a84525f77d63cdefa17d6e9ecd480c4f4bc0b2e27aac2feb41a5c7c4c1e0e82d007d25e8ca9eae6d80c01a978d26c4aebcd

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3yah31di.xc5.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\iEhViyqa8z.bat

        Filesize

        213B

        MD5

        c61645c8b4b48af69f0ddc8ddf4650c8

        SHA1

        f9f35fa224675c7d100cf2b4097e1d19a52bddbe

        SHA256

        a908cf8e1ce331f5038703d937c474973130ade7862e7a2ad9f880b6149a54d8

        SHA512

        0c74f78a9666802a3209e7d6e8e9d3c2978440ccb7398ae9f9685e2f29c879e4bdefc31198816f5848b6a8447d1442088244e46c7404d4f0c04f178b41372733

      • memory/1220-48-0x0000026C4EB40000-0x0000026C4EB62000-memory.dmp

        Filesize

        136KB

      • memory/2652-10-0x0000000002D70000-0x0000000002D88000-memory.dmp

        Filesize

        96KB

      • memory/2652-13-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-17-0x0000000002D90000-0x0000000002D9C000-memory.dmp

        Filesize

        48KB

      • memory/2652-19-0x0000000002DA0000-0x0000000002DAE000-memory.dmp

        Filesize

        56KB

      • memory/2652-22-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-21-0x0000000002DB0000-0x0000000002DBC000-memory.dmp

        Filesize

        48KB

      • memory/2652-23-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-24-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-25-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-26-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-27-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-15-0x0000000002D40000-0x0000000002D4E000-memory.dmp

        Filesize

        56KB

      • memory/2652-12-0x0000000002D30000-0x0000000002D3E000-memory.dmp

        Filesize

        56KB

      • memory/2652-0-0x00007FF9EBA33000-0x00007FF9EBA35000-memory.dmp

        Filesize

        8KB

      • memory/2652-67-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-8-0x000000001B7B0000-0x000000001B800000-memory.dmp

        Filesize

        320KB

      • memory/2652-7-0x0000000002D50000-0x0000000002D6C000-memory.dmp

        Filesize

        112KB

      • memory/2652-5-0x0000000002D20000-0x0000000002D2E000-memory.dmp

        Filesize

        56KB

      • memory/2652-3-0x00007FF9EBA30000-0x00007FF9EC4F1000-memory.dmp

        Filesize

        10.8MB

      • memory/2652-2-0x0000000002BE0000-0x0000000002BE6000-memory.dmp

        Filesize

        24KB

      • memory/2652-1-0x0000000000A10000-0x0000000000B94000-memory.dmp

        Filesize

        1.5MB

      • memory/2820-113-0x00000000030D0000-0x00000000030D8000-memory.dmp

        Filesize

        32KB