Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/05/2024, 12:25

General

  • Target

    66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882.exe

  • Size

    4.1MB

  • MD5

    39d996857eeacf39c33ec907b00aefaf

  • SHA1

    618d7b7b56b3bc806b8e8e65dfdf82d66a216cb7

  • SHA256

    66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882

  • SHA512

    136d3e5ce2e441d3716a93b0e196ff28c1e12c2406a025219fd6af9507509c74784173807557ec1f3a3e17ad6281c4389093ec424cc0ad9f1da1cfeddb304b31

  • SSDEEP

    98304:l/lx2VB4FLDQS1OmkYbRsTncIxTvyO2P5x7YbDUU8K:VlgkYS1OmbburVLyO2P5x7Yb40

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\66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882.exe
    "C:\Users\Admin\AppData\Local\Temp\66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2460
    • 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:4512
    • C:\Users\Admin\AppData\Local\Temp\66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882.exe
      "C:\Users\Admin\AppData\Local\Temp\66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882.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:3456
      • 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:2336
      • 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:3684
        • 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:4516
      • 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:624
      • 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:3820
      • 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:4856
        • 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:2628
        • 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:392
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1368
          • 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:4312
          • 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:1724
          • 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:3088
          • 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:3116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_41c35gjh.bx1.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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      19KB

      MD5

      4a603392beda3563df2a5945245555fe

      SHA1

      2fc3e55c1187abbf72eee5e8d09fbddc7427fb47

      SHA256

      143b8e8029685ecb0fd97042dcc5913272373d6b095e1581c103b266146561ba

      SHA512

      f67399f87c7afd3ab0e7b28dff10a2bb2a0a47bfda4e11b3c303dc5d30efe9eae69f57c52c410028c2767d65baf035ab7eb7af52df56c42affd81aed1905fb8a

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

      Filesize

      19KB

      MD5

      1debe6f0b8a6dc9dae7aff49c1b79c98

      SHA1

      77b67a675f75e3b45abe3080870f7cd930c26ad5

      SHA256

      9761503aa48d693c39ed9aa7cd807862ae5b0758d62c5d0dc460b9f087a1be56

      SHA512

      9db40b70bbcb6fe176dcd93a32c2cf725d764d579f2e59ab2f90008a958c5fc51636ca05efbb469659decdb7dee2e47946ff1a869881fe1b431f9710a807854e

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

      Filesize

      19KB

      MD5

      0b5cf515dd767c3e36e577e4b53846f8

      SHA1

      e47a58e3d15f1eaeae9e2c7b282d9d72b0b00eb7

      SHA256

      d8125ce02cab33469e9a333e1faa849821d73348dacd0e69ae37fea260e161e3

      SHA512

      9da2648dd7d282f81be6ebb5eed86ec708887b7a2e777c345677d8ec8b534952c706e16cd8d04e25dad28ef0fb15b3cf6fdcb03b0015c4ec894259815048d6ee

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

      Filesize

      19KB

      MD5

      6e1d1ee48d5e7a1792fea280593ddd7b

      SHA1

      5014824a6aff0f400cc5cbfb316492c5dc107653

      SHA256

      7254db2b50f304436ae2d255d98823ad7d01bdc2dce3575b06e8ba7918b83f63

      SHA512

      4c31dcd01f3379d499b11448058071f3dc668089955b2fa9dbaadb33ad91ccdf497c30cac76d78827328fbd1e3dc73122fb341e8e94ef63b87e45af7582d52ce

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

      Filesize

      19KB

      MD5

      41cdeff337396b2ef45f0c89f7c5067a

      SHA1

      18d5e11973cee4a708cb53835b0a33de6b0749e3

      SHA256

      af7d6eb62a086c1224b15e2796b81541c9f14c5109d41b887ac3539c079e641f

      SHA512

      d21635893569fcfa0c2c8abcb8a5c6e7f98f8e02b726292efe82b1f6f2b0d8adfb3726af8a99ef3cabb47c4bacbfc0ad4b7269b0903886324370453f7507ee25

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      39d996857eeacf39c33ec907b00aefaf

      SHA1

      618d7b7b56b3bc806b8e8e65dfdf82d66a216cb7

      SHA256

      66d087ead6b6dc3275d4b08726df6af1499fbf8867476667fdb62b8ecfaca882

      SHA512

      136d3e5ce2e441d3716a93b0e196ff28c1e12c2406a025219fd6af9507509c74784173807557ec1f3a3e17ad6281c4389093ec424cc0ad9f1da1cfeddb304b31

    • memory/624-97-0x0000000070D90000-0x0000000070DDC000-memory.dmp

      Filesize

      304KB

    • memory/624-98-0x0000000071510000-0x0000000071864000-memory.dmp

      Filesize

      3.3MB

    • memory/624-86-0x0000000005FF0000-0x0000000006344000-memory.dmp

      Filesize

      3.3MB

    • memory/1724-200-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

      Filesize

      304KB

    • memory/1724-189-0x0000000005900000-0x0000000005C54000-memory.dmp

      Filesize

      3.3MB

    • memory/1724-201-0x0000000071440000-0x0000000071794000-memory.dmp

      Filesize

      3.3MB

    • memory/2336-79-0x0000000007640000-0x0000000007651000-memory.dmp

      Filesize

      68KB

    • memory/2336-80-0x0000000007690000-0x00000000076A4000-memory.dmp

      Filesize

      80KB

    • memory/2336-78-0x0000000007320000-0x00000000073C3000-memory.dmp

      Filesize

      652KB

    • memory/2336-68-0x0000000070F10000-0x0000000071264000-memory.dmp

      Filesize

      3.3MB

    • memory/2336-67-0x0000000070D90000-0x0000000070DDC000-memory.dmp

      Filesize

      304KB

    • memory/2336-66-0x0000000005C60000-0x0000000005FB4000-memory.dmp

      Filesize

      3.3MB

    • memory/2460-1-0x0000000002940000-0x0000000002D3E000-memory.dmp

      Filesize

      4.0MB

    • memory/2460-2-0x0000000002D40000-0x000000000362B000-memory.dmp

      Filesize

      8.9MB

    • memory/2460-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2460-81-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2460-82-0x0000000002940000-0x0000000002D3E000-memory.dmp

      Filesize

      4.0MB

    • memory/2460-108-0x0000000002D40000-0x000000000362B000-memory.dmp

      Filesize

      8.9MB

    • memory/2628-150-0x0000000070D90000-0x0000000070DDC000-memory.dmp

      Filesize

      304KB

    • memory/2628-151-0x0000000071510000-0x0000000071864000-memory.dmp

      Filesize

      3.3MB

    • memory/3456-135-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3456-133-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3456-56-0x0000000002D30000-0x000000000361B000-memory.dmp

      Filesize

      8.9MB

    • memory/3456-55-0x0000000002920000-0x0000000002D26000-memory.dmp

      Filesize

      4.0MB

    • memory/3820-121-0x0000000071510000-0x0000000071864000-memory.dmp

      Filesize

      3.3MB

    • memory/3820-120-0x0000000070D90000-0x0000000070DDC000-memory.dmp

      Filesize

      304KB

    • memory/4312-175-0x0000000070E40000-0x0000000071194000-memory.dmp

      Filesize

      3.3MB

    • memory/4312-171-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/4312-187-0x0000000006020000-0x0000000006034000-memory.dmp

      Filesize

      80KB

    • memory/4312-186-0x0000000007770000-0x0000000007781000-memory.dmp

      Filesize

      68KB

    • memory/4312-185-0x0000000007450000-0x00000000074F3000-memory.dmp

      Filesize

      652KB

    • memory/4312-174-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

      Filesize

      304KB

    • memory/4312-173-0x0000000006770000-0x00000000067BC000-memory.dmp

      Filesize

      304KB

    • memory/4512-10-0x00000000053D0000-0x0000000005436000-memory.dmp

      Filesize

      408KB

    • memory/4512-9-0x0000000005230000-0x0000000005252000-memory.dmp

      Filesize

      136KB

    • memory/4512-43-0x00000000078C0000-0x00000000078CA000-memory.dmp

      Filesize

      40KB

    • memory/4512-41-0x00000000077B0000-0x00000000077CE000-memory.dmp

      Filesize

      120KB

    • memory/4512-42-0x00000000077D0000-0x0000000007873000-memory.dmp

      Filesize

      652KB

    • memory/4512-30-0x0000000074EF0000-0x00000000756A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-31-0x00000000714D0000-0x0000000071824000-memory.dmp

      Filesize

      3.3MB

    • memory/4512-28-0x0000000007770000-0x00000000077A2000-memory.dmp

      Filesize

      200KB

    • memory/4512-29-0x0000000070D90000-0x0000000070DDC000-memory.dmp

      Filesize

      304KB

    • memory/4512-27-0x00000000073B0000-0x00000000073CA000-memory.dmp

      Filesize

      104KB

    • memory/4512-26-0x0000000007A00000-0x000000000807A000-memory.dmp

      Filesize

      6.5MB

    • memory/4512-25-0x0000000007300000-0x0000000007376000-memory.dmp

      Filesize

      472KB

    • memory/4512-24-0x0000000006600000-0x0000000006644000-memory.dmp

      Filesize

      272KB

    • memory/4512-22-0x00000000061F0000-0x000000000620E000-memory.dmp

      Filesize

      120KB

    • memory/4512-23-0x0000000006220000-0x000000000626C000-memory.dmp

      Filesize

      304KB

    • memory/4512-21-0x0000000005BD0000-0x0000000005F24000-memory.dmp

      Filesize

      3.3MB

    • memory/4512-11-0x0000000005AC0000-0x0000000005B26000-memory.dmp

      Filesize

      408KB

    • memory/4512-45-0x0000000008080000-0x0000000008116000-memory.dmp

      Filesize

      600KB

    • memory/4512-53-0x0000000074EF0000-0x00000000756A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-46-0x0000000007900000-0x0000000007911000-memory.dmp

      Filesize

      68KB

    • memory/4512-47-0x0000000007940000-0x000000000794E000-memory.dmp

      Filesize

      56KB

    • memory/4512-44-0x0000000074EF0000-0x00000000756A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-48-0x0000000007950000-0x0000000007964000-memory.dmp

      Filesize

      80KB

    • memory/4512-49-0x00000000079A0000-0x00000000079BA000-memory.dmp

      Filesize

      104KB

    • memory/4512-50-0x0000000007990000-0x0000000007998000-memory.dmp

      Filesize

      32KB

    • memory/4512-8-0x0000000074EF0000-0x00000000756A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-7-0x0000000005490000-0x0000000005AB8000-memory.dmp

      Filesize

      6.2MB

    • memory/4512-6-0x0000000074EF0000-0x00000000756A0000-memory.dmp

      Filesize

      7.7MB

    • memory/4512-5-0x0000000002BF0000-0x0000000002C26000-memory.dmp

      Filesize

      216KB

    • memory/4512-4-0x0000000074EFE000-0x0000000074EFF000-memory.dmp

      Filesize

      4KB

    • memory/4856-213-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-219-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-221-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-223-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-226-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-227-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-229-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-231-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-234-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-235-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-237-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4856-239-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB