Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    20-05-2024 04:06

General

  • Target

    05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe

  • Size

    4.1MB

  • MD5

    838f1358940dbba9f4505d0c24bca4c7

  • SHA1

    c49efbe9a26a8b0865c5bad29a84794e5e4705f2

  • SHA256

    05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1

  • SHA512

    fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8

  • SSDEEP

    98304:eQAQcsa3GhfWYEvpb4LdECaqY+VYhFzXw/u5g9cAd9nz:eQAQcDPYxuCJe7X5ghfz

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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • 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\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
    "C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4880
    • 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:2080
    • C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.exe
      "C:\Users\Admin\AppData\Local\Temp\05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1.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:2852
      • 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:3312
      • 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:2584
        • 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:4776
      • 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:888
      • 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:4016
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1092
        • 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:2044
        • 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:564
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4884
          • 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:132
          • 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:3728
          • 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:2824
          • 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:1028

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rw3nsiwh.sos.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

      a0ec091e0ea0474a2ed1f0ddde67fa1c

      SHA1

      8eac74197c9a033004941e71defc5c1c5454226a

      SHA256

      890828dd0ec5ae9664024cac960208eaeea09850c0041f462b93218fb3aa8eb6

      SHA512

      006133ef41dbdb5400ef6553e1468d6ea5d06ffe48b870a217f58ac35598aa008fe0496b80837b3240f3751cfb8a989d0cce2b0421edd47c170076b5d650a34f

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

      Filesize

      19KB

      MD5

      b2964001920f7614aab4c50153319641

      SHA1

      42445ea0e7d9be81d64c20e7f47373f383ec67cf

      SHA256

      48435836d93cd758e320ccff7e143b9c3715ab327e618f842da67c9b9b2aa1f3

      SHA512

      a39ca6f7bacc0ba06ba79a09a7bf3be4880adfe5332468e2b5d48281c482033bb528de00da1d4c6d8bad40c23193a7a44137c6edf02f1fa6a8b68eec878d4fe2

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

      Filesize

      19KB

      MD5

      169dbbfdac015bb3343ab58373839a0f

      SHA1

      520f964002506d6132da7df009268d2e874d5765

      SHA256

      03aa8fd90961b165093495e559409b540d925bce56275073c4beeaa58b3e778a

      SHA512

      40bcd1b91f1926e6c7bde73357e1e7563849d1aa7c3b19a9211b64e707da724306fcc029f7f55d60233e97f0c9372687070432a04a850ffc9b7ed9f62abe8c06

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

      Filesize

      19KB

      MD5

      a70d45bb37feeacd43dfc73dd91c9645

      SHA1

      b7e3bf2f4b71915c9d3b662a8b6763dfc27bceaf

      SHA256

      27838a28866b9b535d790966539adc85678fc60726df4fe122430cc6fc0fbcba

      SHA512

      7be74151ac32ed8c1695d691a55198a7284ee133feda0769846097af7bfb2534eaa0d246af691dd119f760a08d25e0200e28bff3ba75000e146c6bb9d91b8d7f

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

      Filesize

      19KB

      MD5

      e39ffc227753154ca9c4b7286792db49

      SHA1

      32fe7a85a253971fb3b9f4e54be2cee6eb3ea43c

      SHA256

      ab2d1c952566fb49ca3398e8bd9967dfa622a9560bddbee3abe44ace64b8e123

      SHA512

      8a7688291ad0f81522f92d2959c224cf96ca1cebd123e2011d499dd0a760abe5dc21400618dd0af2952eacadeb73685ede064531e7b72e4b1e3b3b7d473ae248

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      838f1358940dbba9f4505d0c24bca4c7

      SHA1

      c49efbe9a26a8b0865c5bad29a84794e5e4705f2

      SHA256

      05f8794377178b61486f3266c074b1e464f6d3d3c102c256a542414e50f1e3c1

      SHA512

      fd546b1d240fcfcea49f943b6ad7860d0714df6e1b1aba1bf1e2218461f02e6318b6817818d9233af41aef10a5b3106dadc2412cde8b6330ea325067b34ebea8

    • memory/132-163-0x0000000006640000-0x000000000668C000-memory.dmp

      Filesize

      304KB

    • memory/132-161-0x0000000005FE0000-0x0000000006337000-memory.dmp

      Filesize

      3.3MB

    • memory/132-165-0x00000000706D0000-0x0000000070A27000-memory.dmp

      Filesize

      3.3MB

    • memory/132-164-0x0000000070550000-0x000000007059C000-memory.dmp

      Filesize

      304KB

    • memory/132-176-0x0000000005EE0000-0x0000000005EF5000-memory.dmp

      Filesize

      84KB

    • memory/132-175-0x0000000007A60000-0x0000000007A71000-memory.dmp

      Filesize

      68KB

    • memory/132-174-0x0000000007730000-0x00000000077D4000-memory.dmp

      Filesize

      656KB

    • memory/888-92-0x0000000070920000-0x0000000070C77000-memory.dmp

      Filesize

      3.3MB

    • memory/888-91-0x00000000706D0000-0x000000007071C000-memory.dmp

      Filesize

      304KB

    • memory/888-81-0x0000000005EB0000-0x0000000006207000-memory.dmp

      Filesize

      3.3MB

    • memory/1092-211-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-217-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-207-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-209-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-213-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-205-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-227-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-225-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-223-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-221-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-219-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/1092-215-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/2044-151-0x0000000006510000-0x0000000006525000-memory.dmp

      Filesize

      84KB

    • memory/2044-127-0x0000000006130000-0x0000000006487000-memory.dmp

      Filesize

      3.3MB

    • memory/2044-137-0x0000000006A90000-0x0000000006ADC000-memory.dmp

      Filesize

      304KB

    • memory/2044-140-0x00000000708A0000-0x0000000070BF7000-memory.dmp

      Filesize

      3.3MB

    • memory/2044-139-0x0000000070630000-0x000000007067C000-memory.dmp

      Filesize

      304KB

    • memory/2044-149-0x0000000007960000-0x0000000007A04000-memory.dmp

      Filesize

      656KB

    • memory/2044-150-0x0000000007CD0000-0x0000000007CE1000-memory.dmp

      Filesize

      68KB

    • memory/2080-38-0x0000000074350000-0x0000000074B01000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-43-0x0000000007FC0000-0x0000000007FD1000-memory.dmp

      Filesize

      68KB

    • memory/2080-21-0x0000000006990000-0x00000000069AE000-memory.dmp

      Filesize

      120KB

    • memory/2080-22-0x0000000006A30000-0x0000000006A7C000-memory.dmp

      Filesize

      304KB

    • memory/2080-11-0x00000000064A0000-0x0000000006506000-memory.dmp

      Filesize

      408KB

    • memory/2080-23-0x0000000006EF0000-0x0000000006F36000-memory.dmp

      Filesize

      280KB

    • memory/2080-10-0x00000000063C0000-0x0000000006426000-memory.dmp

      Filesize

      408KB

    • memory/2080-25-0x00000000705C0000-0x000000007060C000-memory.dmp

      Filesize

      304KB

    • memory/2080-4-0x000000007435E000-0x000000007435F000-memory.dmp

      Filesize

      4KB

    • memory/2080-5-0x00000000054E0000-0x0000000005516000-memory.dmp

      Filesize

      216KB

    • memory/2080-6-0x0000000005BF0000-0x000000000621A000-memory.dmp

      Filesize

      6.2MB

    • memory/2080-7-0x0000000074350000-0x0000000074B01000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-8-0x0000000074350000-0x0000000074B01000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-50-0x0000000074350000-0x0000000074B01000-memory.dmp

      Filesize

      7.7MB

    • memory/2080-47-0x0000000008030000-0x0000000008038000-memory.dmp

      Filesize

      32KB

    • memory/2080-46-0x0000000008100000-0x000000000811A000-memory.dmp

      Filesize

      104KB

    • memory/2080-45-0x0000000008000000-0x0000000008015000-memory.dmp

      Filesize

      84KB

    • memory/2080-44-0x0000000007FF0000-0x0000000007FFE000-memory.dmp

      Filesize

      56KB

    • memory/2080-24-0x0000000007DA0000-0x0000000007DD4000-memory.dmp

      Filesize

      208KB

    • memory/2080-20-0x0000000006510000-0x0000000006867000-memory.dmp

      Filesize

      3.3MB

    • memory/2080-42-0x0000000008040000-0x00000000080D6000-memory.dmp

      Filesize

      600KB

    • memory/2080-41-0x0000000007F80000-0x0000000007F8A000-memory.dmp

      Filesize

      40KB

    • memory/2080-39-0x0000000008590000-0x0000000008C0A000-memory.dmp

      Filesize

      6.5MB

    • memory/2080-40-0x0000000007F40000-0x0000000007F5A000-memory.dmp

      Filesize

      104KB

    • memory/2080-37-0x0000000007E20000-0x0000000007EC4000-memory.dmp

      Filesize

      656KB

    • memory/2080-9-0x0000000006220000-0x0000000006242000-memory.dmp

      Filesize

      136KB

    • memory/2080-36-0x0000000007E00000-0x0000000007E1E000-memory.dmp

      Filesize

      120KB

    • memory/2080-27-0x0000000070740000-0x0000000070A97000-memory.dmp

      Filesize

      3.3MB

    • memory/2080-26-0x0000000074350000-0x0000000074B01000-memory.dmp

      Filesize

      7.7MB

    • memory/2852-138-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/3312-63-0x0000000005A00000-0x0000000005D57000-memory.dmp

      Filesize

      3.3MB

    • memory/3312-64-0x0000000005F20000-0x0000000005F6C000-memory.dmp

      Filesize

      304KB

    • memory/3312-65-0x00000000706D0000-0x000000007071C000-memory.dmp

      Filesize

      304KB

    • memory/3312-77-0x0000000007420000-0x0000000007435000-memory.dmp

      Filesize

      84KB

    • memory/3312-66-0x0000000070850000-0x0000000070BA7000-memory.dmp

      Filesize

      3.3MB

    • memory/3312-76-0x00000000073D0000-0x00000000073E1000-memory.dmp

      Filesize

      68KB

    • memory/3312-75-0x00000000070A0000-0x0000000007144000-memory.dmp

      Filesize

      656KB

    • memory/3728-188-0x0000000070550000-0x000000007059C000-memory.dmp

      Filesize

      304KB

    • memory/3728-189-0x00000000707A0000-0x0000000070AF7000-memory.dmp

      Filesize

      3.3MB

    • memory/3728-186-0x0000000005CA0000-0x0000000005FF7000-memory.dmp

      Filesize

      3.3MB

    • memory/4016-112-0x0000000070850000-0x0000000070BA7000-memory.dmp

      Filesize

      3.3MB

    • memory/4016-111-0x00000000706D0000-0x000000007071C000-memory.dmp

      Filesize

      304KB

    • memory/4880-1-0x00000000045B0000-0x00000000049B0000-memory.dmp

      Filesize

      4.0MB

    • memory/4880-53-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4880-54-0x00000000049B0000-0x000000000529B000-memory.dmp

      Filesize

      8.9MB

    • memory/4880-51-0x0000000000400000-0x0000000002733000-memory.dmp

      Filesize

      35.2MB

    • memory/4880-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/4880-2-0x00000000049B0000-0x000000000529B000-memory.dmp

      Filesize

      8.9MB