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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/10/2023, 06:38

General

  • Target

    16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54.exe

  • Size

    4.1MB

  • MD5

    f41d826adcb93d3750ae151130026ea2

  • SHA1

    9be1be18971359197bf6d44814b44de83b612a11

  • SHA256

    16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54

  • SHA512

    96fcce2ace4abdb0803d3c727a9d5a2084baad0c9b8f644f199741efb257605fccbe1b6fa82cf90a31fce318b0c03588ae1c21bcdc07f32c9049451062009137

  • SSDEEP

    98304:exyqmIPxyeIJ0Xdspm0fNqnvHGWrGOf5DT:ecqtoeIJGdsI0fMjqOxv

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 21 IoCs
  • Modifies Windows Firewall 1 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
  • 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\16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54.exe
    "C:\Users\Admin\AppData\Local\Temp\16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4564
    • C:\Users\Admin\AppData\Local\Temp\16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54.exe
      "C:\Users\Admin\AppData\Local\Temp\16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54.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:3068
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4184
      • 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:2360
        • 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:628
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2576
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1420
      • 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:3132
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3344
        • 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:2468
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4560
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1524
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3712
          • 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:3828
          • 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:4640

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xuxw4bt5.02b.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:\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

      64a03fa20b57575e82eb87133be689b7

      SHA1

      20107fb8466223de955f8141c2bfabc4be887178

      SHA256

      64d035b45018d4db20124a5bceae9bd400036237beab5d0e18e9c02f7e5f398f

      SHA512

      b38e88cb19bdc3750b052ec82291c862e1d962fab5362ed883dfe4c24d4bbb167fc9c6da1e3fe689377cf69d78527b272f5f4cd96683d47ae829273b4b5ad76a

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

      Filesize

      19KB

      MD5

      fe0b0fe61a9b724ad855b9e195d51a42

      SHA1

      e240ba7374be19ed9173871f39b9eaf2aa1d1d69

      SHA256

      42bfddbf5ba0ddfd2adc55b47687dba28377b124bb4baa561b766f905b4d0c7c

      SHA512

      73b6ebbb17d111f7df4d8063c02189ec0b2860ab06c1359237010d5d6cc2796b60c6c99fff22a8827e9c8c7c3fca13fb150c327f73d1244593936234134bb131

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

      Filesize

      19KB

      MD5

      4387cedc75a704c708a9d1bba95a6b5d

      SHA1

      0dd2358ad105337fe528fc86f35d5cedc0ecf96f

      SHA256

      44a1c2e3495e823a2438c39a0568f411b604dbe3cb716b794145693540d323dc

      SHA512

      14fcd4da4746ba16189b508db47a78aa8729d6f095e4330b6c5eb65533f8700c2b52db30d5951d91f945a146ac45d1b21b7f38f08869fda35adcd804a473558d

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

      Filesize

      19KB

      MD5

      7ec4f4c57c3603d655302506f3a8e44c

      SHA1

      509374db98f6bea3fcf368e4678cd9ef45f25ea3

      SHA256

      5566412e0cfd333d05e0b4efeb49a89b1caac39e17fe42d30727c68702bd30b5

      SHA512

      6beea1c36f7cc0975811924598633962a167fedad5dc03c370a1d653722c56b67c8ff814a25c23b5387290dbe83b5229763e6880950e49abf638a69ebc5b8590

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

      Filesize

      19KB

      MD5

      9440068e29e6bc6049c97d24b36333a4

      SHA1

      464d70c4c5bb5cc7f8cf8bbefbf5cdd4a349526a

      SHA256

      34626b2dc30cbb8961e4d67a4ee346d04b6a8a2146380649ecbc7ec7513f9c31

      SHA512

      af3a6505b49c2db5a7770e5771e6fe8ce72796a52e9a935034f768ddb4cdb468f014a0505e4e658d69d0570cdcda0c940e670b60906032ab0815a8805112603a

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      f41d826adcb93d3750ae151130026ea2

      SHA1

      9be1be18971359197bf6d44814b44de83b612a11

      SHA256

      16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54

      SHA512

      96fcce2ace4abdb0803d3c727a9d5a2084baad0c9b8f644f199741efb257605fccbe1b6fa82cf90a31fce318b0c03588ae1c21bcdc07f32c9049451062009137

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      f41d826adcb93d3750ae151130026ea2

      SHA1

      9be1be18971359197bf6d44814b44de83b612a11

      SHA256

      16d5e8b819218fd8b7f19a4ec540b5fa1912af9fa11799ec8962bbf70d5d1a54

      SHA512

      96fcce2ace4abdb0803d3c727a9d5a2084baad0c9b8f644f199741efb257605fccbe1b6fa82cf90a31fce318b0c03588ae1c21bcdc07f32c9049451062009137

    • memory/1420-139-0x0000000070A50000-0x0000000070DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/1420-137-0x000000007FDC0000-0x000000007FDD0000-memory.dmp

      Filesize

      64KB

    • memory/1420-123-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/1420-124-0x00000000052A0000-0x00000000052B0000-memory.dmp

      Filesize

      64KB

    • memory/1420-135-0x00000000052A0000-0x00000000052B0000-memory.dmp

      Filesize

      64KB

    • memory/1420-138-0x00000000708D0000-0x000000007091C000-memory.dmp

      Filesize

      304KB

    • memory/2576-98-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2576-122-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2576-97-0x0000000002720000-0x0000000002730000-memory.dmp

      Filesize

      64KB

    • memory/2576-109-0x000000007F7A0000-0x000000007F7B0000-memory.dmp

      Filesize

      64KB

    • memory/2576-110-0x00000000708D0000-0x000000007091C000-memory.dmp

      Filesize

      304KB

    • memory/2576-111-0x0000000070A50000-0x0000000070DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/3068-136-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3068-157-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3068-60-0x0000000002D80000-0x000000000366B000-memory.dmp

      Filesize

      8.9MB

    • memory/3068-61-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3068-74-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3068-95-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3068-59-0x0000000002980000-0x0000000002D78000-memory.dmp

      Filesize

      4.0MB

    • memory/3132-269-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-266-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-278-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-250-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-272-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-281-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-186-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-260-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-263-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/3132-275-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4184-63-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/4184-89-0x00000000071E0000-0x0000000007283000-memory.dmp

      Filesize

      652KB

    • memory/4184-94-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-62-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4184-91-0x0000000007500000-0x0000000007514000-memory.dmp

      Filesize

      80KB

    • memory/4184-64-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/4184-90-0x00000000074B0000-0x00000000074C1000-memory.dmp

      Filesize

      68KB

    • memory/4184-75-0x0000000002940000-0x0000000002950000-memory.dmp

      Filesize

      64KB

    • memory/4184-77-0x00000000708D0000-0x000000007091C000-memory.dmp

      Filesize

      304KB

    • memory/4184-79-0x0000000070A50000-0x0000000070DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/4184-78-0x000000007EF60000-0x000000007EF70000-memory.dmp

      Filesize

      64KB

    • memory/4564-34-0x0000000070A50000-0x0000000070DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/4564-29-0x0000000007F40000-0x00000000085BA000-memory.dmp

      Filesize

      6.5MB

    • memory/4564-3-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4564-57-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4564-53-0x0000000007CA0000-0x0000000007CBA000-memory.dmp

      Filesize

      104KB

    • memory/4564-52-0x0000000007C50000-0x0000000007C64000-memory.dmp

      Filesize

      80KB

    • memory/4564-51-0x0000000007C10000-0x0000000007C1E000-memory.dmp

      Filesize

      56KB

    • memory/4564-50-0x0000000005030000-0x0000000005040000-memory.dmp

      Filesize

      64KB

    • memory/4564-49-0x0000000007BD0000-0x0000000007BE1000-memory.dmp

      Filesize

      68KB

    • memory/4564-48-0x0000000074A30000-0x00000000751E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4564-47-0x0000000007CD0000-0x0000000007D66000-memory.dmp

      Filesize

      600KB

    • memory/4564-46-0x0000000007BC0000-0x0000000007BCA000-memory.dmp

      Filesize

      40KB

    • memory/4564-45-0x0000000007AD0000-0x0000000007B73000-memory.dmp

      Filesize

      652KB

    • memory/4564-44-0x0000000007A70000-0x0000000007A8E000-memory.dmp

      Filesize

      120KB

    • memory/4564-4-0x0000000005030000-0x0000000005040000-memory.dmp

      Filesize

      64KB

    • memory/4564-33-0x00000000708D0000-0x000000007091C000-memory.dmp

      Filesize

      304KB

    • memory/4564-32-0x0000000007A90000-0x0000000007AC2000-memory.dmp

      Filesize

      200KB

    • memory/4564-31-0x000000007F7B0000-0x000000007F7C0000-memory.dmp

      Filesize

      64KB

    • memory/4564-30-0x00000000078E0000-0x00000000078FA000-memory.dmp

      Filesize

      104KB

    • memory/4564-54-0x0000000007C90000-0x0000000007C98000-memory.dmp

      Filesize

      32KB

    • memory/4564-28-0x0000000007840000-0x00000000078B6000-memory.dmp

      Filesize

      472KB

    • memory/4564-27-0x0000000005030000-0x0000000005040000-memory.dmp

      Filesize

      64KB

    • memory/4564-5-0x0000000002E70000-0x0000000002EA6000-memory.dmp

      Filesize

      216KB

    • memory/4564-25-0x0000000006A80000-0x0000000006AC4000-memory.dmp

      Filesize

      272KB

    • memory/4564-6-0x0000000005030000-0x0000000005040000-memory.dmp

      Filesize

      64KB

    • memory/4564-23-0x0000000006560000-0x00000000065AC000-memory.dmp

      Filesize

      304KB

    • memory/4564-22-0x00000000051F0000-0x000000000520E000-memory.dmp

      Filesize

      120KB

    • memory/4564-7-0x0000000005670000-0x0000000005C98000-memory.dmp

      Filesize

      6.2MB

    • memory/4564-20-0x0000000005FF0000-0x0000000006344000-memory.dmp

      Filesize

      3.3MB

    • memory/4564-10-0x0000000005E00000-0x0000000005E66000-memory.dmp

      Filesize

      408KB

    • memory/4564-9-0x0000000005CA0000-0x0000000005D06000-memory.dmp

      Filesize

      408KB

    • memory/4564-8-0x00000000055A0000-0x00000000055C2000-memory.dmp

      Filesize

      136KB

    • memory/4980-21-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4980-24-0x0000000002B30000-0x0000000002F28000-memory.dmp

      Filesize

      4.0MB

    • memory/4980-26-0x0000000002F30000-0x000000000381B000-memory.dmp

      Filesize

      8.9MB

    • memory/4980-58-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4980-0-0x0000000002B30000-0x0000000002F28000-memory.dmp

      Filesize

      4.0MB

    • memory/4980-2-0x0000000000400000-0x0000000000D1B000-memory.dmp

      Filesize

      9.1MB

    • memory/4980-1-0x0000000002F30000-0x000000000381B000-memory.dmp

      Filesize

      8.9MB