Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17-05-2024 19:56

General

  • Target

    acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140.exe

  • Size

    4.1MB

  • MD5

    5e6e88e6229170d173cf47fcf6e9a790

  • SHA1

    29bb92ebf3f571adcca130328b3a6747e6d2b2c2

  • SHA256

    acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140

  • SHA512

    d87a44287d1d90a42b4926217deb19398b2eb4d85cd5dc3b1b799ccbf1f9fa261d542ea5c9f6345b04b8a1d1a18b9b2a0243e212ebdb25bf9224c3791c4028f1

  • SSDEEP

    49152:9KSHQE6bCrQt9J2m6qYk0f+BzgqdGFArOOO8EeNSlBbqHPgo81vjAIlxiZQJw/:91wCr5kG+hEArjFEeNSldQg15xmh/

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 19 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 7 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 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\acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140.exe
    "C:\Users\Admin\AppData\Local\Temp\acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2988
    • C:\Users\Admin\AppData\Local\Temp\acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140.exe
      "C:\Users\Admin\AppData\Local\Temp\acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3708
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1212
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3676
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          PID:1504
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1944
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3936
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4792
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:4800
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4336
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:888
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3996
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:2980
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:4472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4iick302.uyt.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      ac4917a885cf6050b1a483e4bc4d2ea5

      SHA1

      b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

      SHA256

      e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

      SHA512

      092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      8e39b2c345cc188f6da740b1c78b3753

      SHA1

      86f2bdb9a27e27ee6c4d9f827bb8709159eee897

      SHA256

      3a0d356f863218325ce9fbf1bab96315b598b32572b864d8d86113881ffadb02

      SHA512

      6e4025140510df5f0dcd9c22a1097e8b92f8e405ed28d40d46958892aad4bae8e48f57755a9cddc86cc4b24862f32c10262a8b6d6aff302804b18668ebf88418

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      fbae38538e91e31ca848f47e79d963f5

      SHA1

      7419f2bfe65f9983247b71726cd3521492b179bb

      SHA256

      36f2129a6754dff9bbc7f86d95a85ea1e3298e6e217cc0749300ed79b2c91247

      SHA512

      50796ebd9a59ee8ad9a5f4e8bb62bd2df862de9ca3612267771ee854dea3d5a622c5d4e3cea4daa6aba1e0f9da7dea2155bda4438e4bde60350901f3ddf83b9a

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      b94e52b797cec26cc9828f0255c61d5f

      SHA1

      81b1a0c93e7390cfa2a1df114bb4e72243f5579d

      SHA256

      0db1761031108865385c67a888fbc28b9ad6bac636ae46a1d48e9bf41992692e

      SHA512

      79a2ecaee9dd02c6b54f7e1738cf2a27ed63808bb020481fd66dbc0083c3f780026161f4255e7471b178c9705ba6bc9549a1fdfd7cc351f23a0a6697fe090a49

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      70dea91d1a513310c83da7a5228b5f74

      SHA1

      33268a6aa92fc71408527af876779ad1d29334c3

      SHA256

      352340678e109e8fdcd11a90f982e3eb71752f9d2dfea9c9b86706715229be1b

      SHA512

      829f3ca793162bb85156ef39fe11b4b076d980bb3b6014477b40ed1bbfa6736580308934293208ddac5a19b6a5e32cb5c1b45ed487ab23d70e3e35050e51bf41

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      eee34bd59ffe28e4b749ce55e38fbe69

      SHA1

      59f7e9756b48272e0723da0b64f5f5c8703a02f3

      SHA256

      396bd5c3246350d2de41d37e3a8324e23592dfa7a087ffd8f23d78a248ba5d91

      SHA512

      b985d920e0db61cf29cac30b818cfbb87af67e25647252d4855fded148bb0ac69844e46d54fed999a373c9a07403ca2f9456e457c5172ca35c12db5f4b5c9441

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      5e6e88e6229170d173cf47fcf6e9a790

      SHA1

      29bb92ebf3f571adcca130328b3a6747e6d2b2c2

      SHA256

      acd4bc93214ae8e9ef722c8e9943186907f5b66e734e8c914ac9be9e45f4c140

      SHA512

      d87a44287d1d90a42b4926217deb19398b2eb4d85cd5dc3b1b799ccbf1f9fa261d542ea5c9f6345b04b8a1d1a18b9b2a0243e212ebdb25bf9224c3791c4028f1

    • memory/888-172-0x0000000007910000-0x00000000079B4000-memory.dmp

      Filesize

      656KB

    • memory/888-174-0x0000000006490000-0x00000000064A5000-memory.dmp

      Filesize

      84KB

    • memory/888-173-0x0000000007C40000-0x0000000007C51000-memory.dmp

      Filesize

      68KB

    • memory/888-163-0x0000000070590000-0x00000000708E7000-memory.dmp

      Filesize

      3.3MB

    • memory/888-162-0x00000000703F0000-0x000000007043C000-memory.dmp

      Filesize

      304KB

    • memory/888-160-0x00000000067F0000-0x000000000683C000-memory.dmp

      Filesize

      304KB

    • memory/888-158-0x0000000006110000-0x0000000006467000-memory.dmp

      Filesize

      3.3MB

    • memory/1212-61-0x0000000005D80000-0x00000000060D7000-memory.dmp

      Filesize

      3.3MB

    • memory/1212-75-0x00000000077F0000-0x0000000007805000-memory.dmp

      Filesize

      84KB

    • memory/1212-73-0x00000000077A0000-0x00000000077B1000-memory.dmp

      Filesize

      68KB

    • memory/1212-72-0x0000000007470000-0x0000000007514000-memory.dmp

      Filesize

      656KB

    • memory/1212-63-0x0000000070650000-0x00000000709A7000-memory.dmp

      Filesize

      3.3MB

    • memory/1212-62-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/1628-230-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-209-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-203-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-239-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-236-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-233-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-206-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-227-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-224-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-221-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-218-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-215-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1628-212-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1944-91-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/1944-87-0x0000000005A40000-0x0000000005D97000-memory.dmp

      Filesize

      3.3MB

    • memory/1944-92-0x0000000070670000-0x00000000709C7000-memory.dmp

      Filesize

      3.3MB

    • memory/2028-138-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2028-89-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/2028-2-0x0000000004D60000-0x000000000564B000-memory.dmp

      Filesize

      8.9MB

    • memory/2028-74-0x0000000004950000-0x0000000004D51000-memory.dmp

      Filesize

      4.0MB

    • memory/2028-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2028-1-0x0000000004950000-0x0000000004D51000-memory.dmp

      Filesize

      4.0MB

    • memory/2028-90-0x0000000004D60000-0x000000000564B000-memory.dmp

      Filesize

      8.9MB

    • memory/2988-5-0x0000000002A60000-0x0000000002A96000-memory.dmp

      Filesize

      216KB

    • memory/2988-37-0x00000000073A0000-0x0000000007444000-memory.dmp

      Filesize

      656KB

    • memory/2988-25-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/2988-6-0x00000000052C0000-0x00000000058EA000-memory.dmp

      Filesize

      6.2MB

    • memory/2988-41-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/2988-42-0x0000000007520000-0x000000000752A000-memory.dmp

      Filesize

      40KB

    • memory/2988-7-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/2988-43-0x0000000007630000-0x00000000076C6000-memory.dmp

      Filesize

      600KB

    • memory/2988-40-0x00000000074E0000-0x00000000074FA000-memory.dmp

      Filesize

      104KB

    • memory/2988-39-0x0000000007B10000-0x000000000818A000-memory.dmp

      Filesize

      6.5MB

    • memory/2988-44-0x0000000007550000-0x0000000007561000-memory.dmp

      Filesize

      68KB

    • memory/2988-45-0x00000000075A0000-0x00000000075AE000-memory.dmp

      Filesize

      56KB

    • memory/2988-46-0x00000000075C0000-0x00000000075D5000-memory.dmp

      Filesize

      84KB

    • memory/2988-8-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/2988-4-0x000000007426E000-0x000000007426F000-memory.dmp

      Filesize

      4KB

    • memory/2988-23-0x0000000006490000-0x00000000064D6000-memory.dmp

      Filesize

      280KB

    • memory/2988-22-0x0000000005FC0000-0x000000000600C000-memory.dmp

      Filesize

      304KB

    • memory/2988-21-0x0000000005F20000-0x0000000005F3E000-memory.dmp

      Filesize

      120KB

    • memory/2988-9-0x0000000005270000-0x0000000005292000-memory.dmp

      Filesize

      136KB

    • memory/2988-20-0x0000000005B90000-0x0000000005EE7000-memory.dmp

      Filesize

      3.3MB

    • memory/2988-10-0x0000000005960000-0x00000000059C6000-memory.dmp

      Filesize

      408KB

    • memory/2988-47-0x0000000007610000-0x000000000762A000-memory.dmp

      Filesize

      104KB

    • memory/2988-24-0x0000000007320000-0x0000000007354000-memory.dmp

      Filesize

      208KB

    • memory/2988-48-0x00000000076D0000-0x00000000076D8000-memory.dmp

      Filesize

      32KB

    • memory/2988-51-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/2988-26-0x0000000070520000-0x0000000070877000-memory.dmp

      Filesize

      3.3MB

    • memory/2988-36-0x0000000007380000-0x000000000739E000-memory.dmp

      Filesize

      120KB

    • memory/2988-27-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/2988-11-0x00000000059D0000-0x0000000005A36000-memory.dmp

      Filesize

      408KB

    • memory/2988-38-0x0000000074260000-0x0000000074A11000-memory.dmp

      Filesize

      7.7MB

    • memory/3708-137-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/3936-112-0x0000000070650000-0x00000000709A7000-memory.dmp

      Filesize

      3.3MB

    • memory/3936-111-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/3996-187-0x0000000070570000-0x00000000708C7000-memory.dmp

      Filesize

      3.3MB

    • memory/3996-186-0x00000000703F0000-0x000000007043C000-memory.dmp

      Filesize

      304KB

    • memory/3996-184-0x0000000005700000-0x0000000005A57000-memory.dmp

      Filesize

      3.3MB

    • memory/4792-139-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/4792-140-0x0000000070720000-0x0000000070A77000-memory.dmp

      Filesize

      3.3MB

    • memory/4792-132-0x0000000005A00000-0x0000000005D57000-memory.dmp

      Filesize

      3.3MB