Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-05-2024 14:00

General

  • Target

    1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe

  • Size

    4.1MB

  • MD5

    8555b896248f47f8b2643d82d7cb17a9

  • SHA1

    1e80159e5c8d8b40a8dccc05d67b4e86d31d8c8d

  • SHA256

    1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21

  • SHA512

    f934f2f31d7bd885e52aecfb5c2539109a73a031152fbaafd1baa766d699ae6221f220727e854494d0ee00f2ae00a392d415ed01a10af1ec1e2cd6d76f90403c

  • SSDEEP

    98304:cNaXJU8AJvaro5mDbVFqT6QhicqJuM7BOvJODhfBAiYJAl59WV:cqU8A9EamDpImBOY9f2NV

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\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe
    "C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2428
    • 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:4876
    • C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.exe
      "C:\Users\Admin\AppData\Local\Temp\1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21.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:3700
      • 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:1464
      • 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:5064
        • 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:2552
      • 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:3604
      • 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:1532
      • 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:1496
        • 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:2476
        • 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:5024
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4568
          • 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:2828
          • 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:3756
          • 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:2512
          • 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:2752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b0otxtns.qwf.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

      d0c46cad6c0778401e21910bd6b56b70

      SHA1

      7be418951ea96326aca445b8dfe449b2bfa0dca6

      SHA256

      9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02

      SHA512

      057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949

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

      Filesize

      19KB

      MD5

      e23fe6baf656dec28e8a371dc13b3b4e

      SHA1

      d6911d22b609ec9502eece47de195f0148bd9173

      SHA256

      432c896b857fe45018078f5aa3a847a3082a340e66d57f9444f543d4ba01a171

      SHA512

      8bede609fdd219b70ee25c90c9593511ae454841c3cee89e93a8ce37b6724f5092fd56c6f931f9de9199ca872d7151239433fb482b5eebb9278faf58bbd0577b

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

      Filesize

      19KB

      MD5

      326da1d6c9efbc9b34bdae6ca78b63b2

      SHA1

      3073e30e4bdb6e5093fb60cfc894e843dffe479a

      SHA256

      45e15fc0186f37a1776adf1c1005210d75dd9054396f1df354de01bf9aa988ac

      SHA512

      da2f20bc79af4b262e527e6fe180292f4a16e71daa894195b48264be1cbbd2d6f01b7a232821b1cd828f25855b8e1ffe329f480ff860d1f1c8bb0454ad72a965

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

      Filesize

      19KB

      MD5

      66f41d03332513b5596004e5b9f1ecd0

      SHA1

      6bac913029708e9bf05004491033098d91df77ef

      SHA256

      83b14a9c36b1bfe4bb993ca60ce943293b61bb46f57734ddfb7bca55682ee5e3

      SHA512

      94096c3c387ef73f595035fee66132ed7fe24f77604058d7d249a5f40c2be89d3a62877694a50168f074520ed28b16f2963ece3b252b44e379976c49f172d302

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

      Filesize

      19KB

      MD5

      61a1f73eb0f4825223e541fd20155c4c

      SHA1

      cde51aff26d69d34c4036c5b58adff43af901031

      SHA256

      520ee5b67574e19b169742053ab9b23e1ba7db51822227db067b753b67b38c31

      SHA512

      a77f2a0b271d18065747c22ebb4fddac5d3f1b20bb586114b480c54d838533aa7a6881d16aa68cfebb1da3789e3b621acd0ec48842446fdf7b3e2323c4fd6266

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

      Filesize

      19KB

      MD5

      f7d56ec0ea1699b2870134f56c1b7f24

      SHA1

      9bb30b2b2bf40cf2cdc37f26bf13fd636d49f8f0

      SHA256

      9952fb8eaef1c82ffbeb11042385c5e07f88c800cf1aba1ed3b300da85c28d86

      SHA512

      5c619667a70133c56e28cfde0b7d942248c290a7003565b1777c61d7c71ad1cf6b592adcdfd2ab71ccc489869937d51bf760deb8458230938dacc75160eeecd0

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      8555b896248f47f8b2643d82d7cb17a9

      SHA1

      1e80159e5c8d8b40a8dccc05d67b4e86d31d8c8d

      SHA256

      1e2d4e08ccabd10aecec1292efd91f0ef4140387acdf2e1bfd6c6871d155cd21

      SHA512

      f934f2f31d7bd885e52aecfb5c2539109a73a031152fbaafd1baa766d699ae6221f220727e854494d0ee00f2ae00a392d415ed01a10af1ec1e2cd6d76f90403c

    • memory/1464-71-0x0000000007150000-0x00000000071F4000-memory.dmp

      Filesize

      656KB

    • memory/1464-52-0x0000000005A80000-0x0000000005DD7000-memory.dmp

      Filesize

      3.3MB

    • memory/1464-61-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/1464-62-0x0000000070480000-0x00000000707D7000-memory.dmp

      Filesize

      3.3MB

    • memory/1464-72-0x00000000074A0000-0x00000000074B1000-memory.dmp

      Filesize

      68KB

    • memory/1464-73-0x00000000074F0000-0x0000000007505000-memory.dmp

      Filesize

      84KB

    • memory/1496-210-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-220-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-200-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-202-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-222-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-204-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-198-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-214-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-218-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-206-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-208-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-216-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1496-212-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/1532-109-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/1532-110-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/2428-146-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2428-97-0x00000000046E0000-0x0000000004ADD000-memory.dmp

      Filesize

      4.0MB

    • memory/2428-98-0x0000000004AE0000-0x00000000053CB000-memory.dmp

      Filesize

      8.9MB

    • memory/2428-96-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/2428-1-0x00000000046E0000-0x0000000004ADD000-memory.dmp

      Filesize

      4.0MB

    • memory/2428-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/2428-2-0x0000000004AE0000-0x00000000053CB000-memory.dmp

      Filesize

      8.9MB

    • memory/2476-135-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/2476-136-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/2828-168-0x0000000006D30000-0x0000000006DD4000-memory.dmp

      Filesize

      656KB

    • memory/2828-147-0x0000000005520000-0x0000000005877000-memory.dmp

      Filesize

      3.3MB

    • memory/2828-170-0x00000000058F0000-0x0000000005905000-memory.dmp

      Filesize

      84KB

    • memory/2828-169-0x00000000058B0000-0x00000000058C1000-memory.dmp

      Filesize

      68KB

    • memory/2828-159-0x00000000703A0000-0x00000000706F7000-memory.dmp

      Filesize

      3.3MB

    • memory/2828-158-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/2828-157-0x0000000005B20000-0x0000000005B6C000-memory.dmp

      Filesize

      304KB

    • memory/3604-86-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/3604-87-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/3700-123-0x0000000000400000-0x000000000273B000-memory.dmp

      Filesize

      35.2MB

    • memory/3756-183-0x00000000703A0000-0x00000000706F7000-memory.dmp

      Filesize

      3.3MB

    • memory/3756-182-0x0000000070150000-0x000000007019C000-memory.dmp

      Filesize

      304KB

    • memory/4876-26-0x00000000703B0000-0x0000000070707000-memory.dmp

      Filesize

      3.3MB

    • memory/4876-25-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/4876-38-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-37-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-40-0x00000000076A0000-0x00000000076BA000-memory.dmp

      Filesize

      104KB

    • memory/4876-36-0x0000000007570000-0x0000000007614000-memory.dmp

      Filesize

      656KB

    • memory/4876-41-0x00000000076E0000-0x00000000076EA000-memory.dmp

      Filesize

      40KB

    • memory/4876-42-0x00000000077A0000-0x0000000007836000-memory.dmp

      Filesize

      600KB

    • memory/4876-43-0x0000000007710000-0x0000000007721000-memory.dmp

      Filesize

      68KB

    • memory/4876-50-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-44-0x0000000007750000-0x000000000775E000-memory.dmp

      Filesize

      56KB

    • memory/4876-45-0x0000000007760000-0x0000000007775000-memory.dmp

      Filesize

      84KB

    • memory/4876-35-0x0000000007550000-0x000000000756E000-memory.dmp

      Filesize

      120KB

    • memory/4876-46-0x0000000007860000-0x000000000787A000-memory.dmp

      Filesize

      104KB

    • memory/4876-47-0x0000000007840000-0x0000000007848000-memory.dmp

      Filesize

      32KB

    • memory/4876-39-0x0000000007CE0000-0x000000000835A000-memory.dmp

      Filesize

      6.5MB

    • memory/4876-24-0x00000000074F0000-0x0000000007524000-memory.dmp

      Filesize

      208KB

    • memory/4876-23-0x00000000066A0000-0x00000000066E6000-memory.dmp

      Filesize

      280KB

    • memory/4876-22-0x0000000006130000-0x000000000617C000-memory.dmp

      Filesize

      304KB

    • memory/4876-21-0x00000000060F0000-0x000000000610E000-memory.dmp

      Filesize

      120KB

    • memory/4876-20-0x0000000005C20000-0x0000000005F77000-memory.dmp

      Filesize

      3.3MB

    • memory/4876-11-0x0000000005BB0000-0x0000000005C16000-memory.dmp

      Filesize

      408KB

    • memory/4876-10-0x0000000005B40000-0x0000000005BA6000-memory.dmp

      Filesize

      408KB

    • memory/4876-9-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-8-0x0000000005250000-0x0000000005272000-memory.dmp

      Filesize

      136KB

    • memory/4876-6-0x0000000073FC0000-0x0000000074771000-memory.dmp

      Filesize

      7.7MB

    • memory/4876-7-0x00000000052E0000-0x000000000590A000-memory.dmp

      Filesize

      6.2MB

    • memory/4876-5-0x0000000004C70000-0x0000000004CA6000-memory.dmp

      Filesize

      216KB

    • memory/4876-4-0x0000000073FCE000-0x0000000073FCF000-memory.dmp

      Filesize

      4KB