Analysis

  • max time kernel
    150s
  • max time network
    127s
  • 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 15:23

General

  • Target

    b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd.exe

  • Size

    4.1MB

  • MD5

    3aafa11f14ab92b3d3e98784f1adbbc1

  • SHA1

    c1015ea32b75c59f6323c46055d3ef0bbaa80f85

  • SHA256

    b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd

  • SHA512

    13a886db858101fb79fcfacc00b6ce449607b5906ab63d369e5508710d52e6e52f259a825d7a32f47af52834c3df4adde0b02b965f73e22b5ec90621f1ea947d

  • SSDEEP

    98304:QvzBhIm6zIE7SIO2RhCG9zRnSMmyRgCXxFQG9c6:mzBhDcIv8bCGbNmyXXxFQGy6

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 18 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\b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd.exe
    "C:\Users\Admin\AppData\Local\Temp\b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3756
    • 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:1932
    • C:\Users\Admin\AppData\Local\Temp\b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd.exe
      "C:\Users\Admin\AppData\Local\Temp\b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd.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:1412
      • 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:4676
      • 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:2520
        • 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:4804
      • 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:2892
      • 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:2268
      • 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:2544
        • 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:4564
        • 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:1400
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:940
          • 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:4056
          • 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:3872
          • 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:4392
          • 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:2116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ba0reabj.v4d.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

      441918235c66bff282d82ecb9a3b8464

      SHA1

      2922e9932df463182434fa909ac9661b5aafb38d

      SHA256

      564f33e365546736add5db5a1df64b745e77bd45a45ba580215ff03a01b304d7

      SHA512

      0c2b19acd550d4087ffa87cb513bd6d48b3dbbfb750cd6c37b8b70e5df16d8559a3485a5f234e66733c4c25401029a1f12b8a18b0a4e329893d2422aa408a229

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

      Filesize

      19KB

      MD5

      9f8ef268b124e57f7ba4107deb55c3e2

      SHA1

      c7cd0e296361f4da1ec71418e2222a0d9e665cef

      SHA256

      e219a673e5cec432bb6ba00bf91475968ae5f6755cac53fe3538572eb07aada5

      SHA512

      b8d9fdc69fa6edea1ee09ae84da6fe1e2211a0ef5d8623abb0cb9a050434409302695b7df4a6ebfc83d653484307b24ebbc1d6c33ad06a578ddb7d65df1c4834

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

      Filesize

      19KB

      MD5

      06fd232c1c858ff447e67a87180c060d

      SHA1

      0e61f4caf56697d2677d6f4079d3cee94bf6c889

      SHA256

      330233e91f244afa44ca0fc7c0072ed7c46199f8d7d43d5153440c22a1f67991

      SHA512

      7845c96deb89e8a6339697e216972bc26c093c5d23d998f5180ccfcdb41088a570a0c580af191dde3607a071d9809f072dc6d1845191e5317cd4869e422ab0bd

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

      Filesize

      19KB

      MD5

      a78f7bc2ca086d991757d32cdeba9cf6

      SHA1

      df57354217c0f28311284cff1515e5095c68134c

      SHA256

      f3ef055e5e476d7d24ee8c216abdcf8efd496e685d63456e5205de1b8df1957c

      SHA512

      c76e83855f791b9915878efe9b6ff6e37576732d723580b83fae2c38138046c34df99458f2a2760e8845c0866d3229c795832114ccab84267453e2178626db59

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

      Filesize

      19KB

      MD5

      8ae5cca18d1fce8c6b14b0f33f3bbb37

      SHA1

      c870b41d13a132d22aed474485a0e78472eeac22

      SHA256

      3b04ca68faacef94ac0e3607e74025a4fb24554617c42ceb26205aa82e44ae8f

      SHA512

      e5a32a6d3c291502aa6be9b88e7a0c2c2e452864d2054ef1cd2c9cd8650815ff3318442c0d36dcfeece37aec88dc5a0a562ab91b3d4bbb0a7c585cac219526ab

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      3aafa11f14ab92b3d3e98784f1adbbc1

      SHA1

      c1015ea32b75c59f6323c46055d3ef0bbaa80f85

      SHA256

      b5f6532c96e8d4c5a44d9d2b5f6517704dc2e466bfe374483c43d7dc13f670bd

      SHA512

      13a886db858101fb79fcfacc00b6ce449607b5906ab63d369e5508710d52e6e52f259a825d7a32f47af52834c3df4adde0b02b965f73e22b5ec90621f1ea947d

    • memory/1412-133-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1412-55-0x0000000002960000-0x0000000002D61000-memory.dmp

      Filesize

      4.0MB

    • memory/1932-50-0x0000000007F70000-0x0000000007F78000-memory.dmp

      Filesize

      32KB

    • memory/1932-7-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-22-0x00000000067F0000-0x000000000680E000-memory.dmp

      Filesize

      120KB

    • memory/1932-23-0x0000000006840000-0x000000000688C000-memory.dmp

      Filesize

      304KB

    • memory/1932-24-0x0000000006D50000-0x0000000006D94000-memory.dmp

      Filesize

      272KB

    • memory/1932-25-0x0000000007B10000-0x0000000007B86000-memory.dmp

      Filesize

      472KB

    • memory/1932-26-0x0000000008210000-0x000000000888A000-memory.dmp

      Filesize

      6.5MB

    • memory/1932-27-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

      Filesize

      104KB

    • memory/1932-28-0x0000000007D70000-0x0000000007DA2000-memory.dmp

      Filesize

      200KB

    • memory/1932-29-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/1932-30-0x0000000070A30000-0x0000000070D84000-memory.dmp

      Filesize

      3.3MB

    • memory/1932-40-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-41-0x0000000007DB0000-0x0000000007DCE000-memory.dmp

      Filesize

      120KB

    • memory/1932-42-0x0000000007DD0000-0x0000000007E73000-memory.dmp

      Filesize

      652KB

    • memory/1932-43-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-44-0x0000000007EC0000-0x0000000007ECA000-memory.dmp

      Filesize

      40KB

    • memory/1932-45-0x0000000007F80000-0x0000000008016000-memory.dmp

      Filesize

      600KB

    • memory/1932-46-0x0000000007EE0000-0x0000000007EF1000-memory.dmp

      Filesize

      68KB

    • memory/1932-47-0x0000000007F20000-0x0000000007F2E000-memory.dmp

      Filesize

      56KB

    • memory/1932-48-0x0000000007F30000-0x0000000007F44000-memory.dmp

      Filesize

      80KB

    • memory/1932-49-0x0000000008020000-0x000000000803A000-memory.dmp

      Filesize

      104KB

    • memory/1932-4-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

      Filesize

      4KB

    • memory/1932-53-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-11-0x0000000006190000-0x00000000061F6000-memory.dmp

      Filesize

      408KB

    • memory/1932-5-0x00000000031F0000-0x0000000003226000-memory.dmp

      Filesize

      216KB

    • memory/1932-21-0x0000000006300000-0x0000000006654000-memory.dmp

      Filesize

      3.3MB

    • memory/1932-6-0x0000000005A80000-0x00000000060A8000-memory.dmp

      Filesize

      6.2MB

    • memory/1932-8-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/1932-9-0x0000000005930000-0x0000000005952000-memory.dmp

      Filesize

      136KB

    • memory/1932-10-0x0000000006120000-0x0000000006186000-memory.dmp

      Filesize

      408KB

    • memory/2268-118-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/2268-119-0x0000000071030000-0x0000000071384000-memory.dmp

      Filesize

      3.3MB

    • memory/2544-230-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-222-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-232-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-218-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-228-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-234-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-216-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-214-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-236-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-238-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-220-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-226-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2544-224-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2892-97-0x0000000070A30000-0x0000000070D84000-memory.dmp

      Filesize

      3.3MB

    • memory/2892-96-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/3756-56-0x0000000002920000-0x0000000002D1D000-memory.dmp

      Filesize

      4.0MB

    • memory/3756-1-0x0000000002920000-0x0000000002D1D000-memory.dmp

      Filesize

      4.0MB

    • memory/3756-84-0x0000000002D20000-0x000000000360B000-memory.dmp

      Filesize

      8.9MB

    • memory/3756-83-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3756-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/3756-2-0x0000000002D20000-0x000000000360B000-memory.dmp

      Filesize

      8.9MB

    • memory/3872-197-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/3872-192-0x00000000056B0000-0x0000000005A04000-memory.dmp

      Filesize

      3.3MB

    • memory/3872-198-0x0000000070EE0000-0x0000000071234000-memory.dmp

      Filesize

      3.3MB

    • memory/4056-171-0x00000000707D0000-0x000000007081C000-memory.dmp

      Filesize

      304KB

    • memory/4056-184-0x0000000006510000-0x0000000006524000-memory.dmp

      Filesize

      80KB

    • memory/4056-183-0x0000000007D00000-0x0000000007D11000-memory.dmp

      Filesize

      68KB

    • memory/4056-182-0x00000000079C0000-0x0000000007A63000-memory.dmp

      Filesize

      652KB

    • memory/4056-172-0x0000000070970000-0x0000000070CC4000-memory.dmp

      Filesize

      3.3MB

    • memory/4056-170-0x0000000006AC0000-0x0000000006B0C000-memory.dmp

      Filesize

      304KB

    • memory/4056-165-0x0000000006190000-0x00000000064E4000-memory.dmp

      Filesize

      3.3MB

    • memory/4564-147-0x0000000070A30000-0x0000000070D84000-memory.dmp

      Filesize

      3.3MB

    • memory/4564-146-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/4676-80-0x0000000007760000-0x0000000007774000-memory.dmp

      Filesize

      80KB

    • memory/4676-79-0x0000000007710000-0x0000000007721000-memory.dmp

      Filesize

      68KB

    • memory/4676-78-0x00000000073D0000-0x0000000007473000-memory.dmp

      Filesize

      652KB

    • memory/4676-68-0x0000000071030000-0x0000000071384000-memory.dmp

      Filesize

      3.3MB

    • memory/4676-67-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/4676-57-0x0000000005BB0000-0x0000000005F04000-memory.dmp

      Filesize

      3.3MB