Analysis

  • max time kernel
    149s
  • max time network
    113s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    30/04/2024, 10:31

General

  • Target

    e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62.exe

  • Size

    4.1MB

  • MD5

    ed324701304e4fe7b5cc0f176e0a53d7

  • SHA1

    d541470c60b5416e86b74f23d79c71fb4f1d11f2

  • SHA256

    e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62

  • SHA512

    a349d34fce36b1ac031020cdfdca219e5b48f03629b9057153707a5b06292cda91cbcf4a585e92fdde601c51182671965e2d955405a2b4a9c64381b0aff0a964

  • SSDEEP

    98304:u5cYducveP7YU45xwOWJT0aNL+AM/0zDTKu+sSgd2sGCIH8BwxlV:udxzNWeaNLRTPSgdyRxlV

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
  • Program crash 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\e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62.exe
    "C:\Users\Admin\AppData\Local\Temp\e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2840
    • C:\Users\Admin\AppData\Local\Temp\e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62.exe
      "C:\Users\Admin\AppData\Local\Temp\e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62.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:1904
      • 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:4500
      • 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:3644
        • 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:3524
      • 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:4352
      • 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:4252
      • 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:2640
        • 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:800
        • 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:4560
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1496
          • 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:2600
          • 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:4064
          • 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:2168
          • 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:1516
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1904 -s 612
          3⤵
          • Program crash
          PID:3832
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4108 -s 652
        2⤵
        • Program crash
        PID:3308
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4108 -ip 4108
      1⤵
        PID:936
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1904 -ip 1904
        1⤵
          PID:3348

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2zifmvqs.rby.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

          432bc64d3a9b3b9005056ac4b72289c7

          SHA1

          0e895a8fea219f79d697928648e687758563ca8d

          SHA256

          97834f2f6cfa1bfd98322c889a0e84e69a075380058c02509325f36f71106033

          SHA512

          28c0486e2857c77f638dc59f4828548eb774e060b00f2c36ec2b2c4d8e65fc65f096bdcd23c1bfe0c3b7e24a0dfdef6fd58a2ec784924441615936c26180b330

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

          Filesize

          19KB

          MD5

          b8247b5ee396d642159319fdbc3b9fee

          SHA1

          30318a1929d4af2f6ca781f084258396d80e912f

          SHA256

          3580c0b5866a777707ee41d6fcff15f533968a9d6d0eea2c40239caffbc71e7a

          SHA512

          775dc3ff46128560525e7125f8aff8ed740ea5a405e6db061dc0003ec49dce59755515d508cd52a37227062f0a23ffce93f32afc6d72929321a2039d2989a483

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

          Filesize

          19KB

          MD5

          02fd080932c55ffdeabd4fbf9c7454a8

          SHA1

          3d75e36a1c0b8a77db3d680eabe373e88c751b48

          SHA256

          f143b3ab3f91e0164b5ff9422a2095cff00565d8c51e6137c0f103df640fe0a0

          SHA512

          5caabd0e36d568316b0155181658bf0ffa8cf56f189f661b216b5ce9e4c16c260c47dad4899f847959b1487fa5fc20db9edc201001b5782ee7ec7a6d3a8815ae

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

          Filesize

          19KB

          MD5

          85394d30171e817e8caf7a0c37b6c3fa

          SHA1

          6a27aa27b7dd18c837550122bd3737e5b8314bd6

          SHA256

          faf0c6a174c4e2d5b17a5c05cc8abdeab2991e3bdf5307e86d63c8f6b3b8c036

          SHA512

          30d065753af807b8e855abcf53dc5546b3cc4319de324b7c1f501d81aa0b7c103565e3c81e99e5f865b0c6a5c789d16a15f747aea51d0636a47b622270cfd5a3

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

          Filesize

          19KB

          MD5

          9b46807f2c6521770997b649775553e0

          SHA1

          5048927632a9f6cf7337400dae726756e9515b98

          SHA256

          03c1484efeb90f71103ac61f9ba55d53323e25481659f2cc6f3d1772e34835ab

          SHA512

          b1c0c25ddee0e4522127fc9c2d97aa034f40d9d3f8efdff9a54309f9ad8a500853d44724dc8b8b36afbcd884c643362ab9a5a8f8cd786da3b9f7d660576c30ae

        • C:\Windows\rss\csrss.exe

          Filesize

          4.1MB

          MD5

          ed324701304e4fe7b5cc0f176e0a53d7

          SHA1

          d541470c60b5416e86b74f23d79c71fb4f1d11f2

          SHA256

          e51d61163abe510000dd213dc6bb4b69904bf53e93007758ff5347bad8c2cb62

          SHA512

          a349d34fce36b1ac031020cdfdca219e5b48f03629b9057153707a5b06292cda91cbcf4a585e92fdde601c51182671965e2d955405a2b4a9c64381b0aff0a964

        • memory/800-149-0x0000000005C50000-0x0000000005C65000-memory.dmp

          Filesize

          84KB

        • memory/800-147-0x0000000007570000-0x0000000007614000-memory.dmp

          Filesize

          656KB

        • memory/800-148-0x00000000078C0000-0x00000000078D1000-memory.dmp

          Filesize

          68KB

        • memory/800-138-0x0000000070490000-0x00000000707E7000-memory.dmp

          Filesize

          3.3MB

        • memory/800-137-0x0000000070310000-0x000000007035C000-memory.dmp

          Filesize

          304KB

        • memory/800-136-0x0000000006370000-0x00000000063BC000-memory.dmp

          Filesize

          304KB

        • memory/1904-126-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2600-173-0x0000000007620000-0x00000000076C4000-memory.dmp

          Filesize

          656KB

        • memory/2600-160-0x0000000005F90000-0x00000000062E7000-memory.dmp

          Filesize

          3.3MB

        • memory/2600-175-0x0000000005D60000-0x0000000005D75000-memory.dmp

          Filesize

          84KB

        • memory/2600-163-0x0000000070230000-0x000000007027C000-memory.dmp

          Filesize

          304KB

        • memory/2600-164-0x00000000703B0000-0x0000000070707000-memory.dmp

          Filesize

          3.3MB

        • memory/2600-162-0x0000000006700000-0x000000000674C000-memory.dmp

          Filesize

          304KB

        • memory/2600-174-0x0000000007980000-0x0000000007991000-memory.dmp

          Filesize

          68KB

        • memory/2640-204-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-151-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-198-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-205-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-206-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-207-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-208-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-209-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-210-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-211-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-212-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-213-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2640-214-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/2840-38-0x0000000003270000-0x0000000003280000-memory.dmp

          Filesize

          64KB

        • memory/2840-21-0x0000000006730000-0x000000000677C000-memory.dmp

          Filesize

          304KB

        • memory/2840-4-0x00000000031C0000-0x00000000031F6000-memory.dmp

          Filesize

          216KB

        • memory/2840-5-0x0000000074030000-0x00000000747E1000-memory.dmp

          Filesize

          7.7MB

        • memory/2840-7-0x0000000005920000-0x0000000005F4A000-memory.dmp

          Filesize

          6.2MB

        • memory/2840-6-0x0000000003270000-0x0000000003280000-memory.dmp

          Filesize

          64KB

        • memory/2840-8-0x00000000057D0000-0x00000000057F2000-memory.dmp

          Filesize

          136KB

        • memory/2840-10-0x0000000005FC0000-0x0000000006026000-memory.dmp

          Filesize

          408KB

        • memory/2840-9-0x0000000005870000-0x00000000058D6000-memory.dmp

          Filesize

          408KB

        • memory/2840-19-0x0000000006150000-0x00000000064A7000-memory.dmp

          Filesize

          3.3MB

        • memory/2840-20-0x0000000006680000-0x000000000669E000-memory.dmp

          Filesize

          120KB

        • memory/2840-22-0x0000000006C00000-0x0000000006C46000-memory.dmp

          Filesize

          280KB

        • memory/2840-23-0x000000007FA70000-0x000000007FA80000-memory.dmp

          Filesize

          64KB

        • memory/2840-25-0x00000000702A0000-0x00000000702EC000-memory.dmp

          Filesize

          304KB

        • memory/2840-51-0x0000000074030000-0x00000000747E1000-memory.dmp

          Filesize

          7.7MB

        • memory/2840-48-0x0000000007D60000-0x0000000007D68000-memory.dmp

          Filesize

          32KB

        • memory/2840-47-0x0000000007D40000-0x0000000007D5A000-memory.dmp

          Filesize

          104KB

        • memory/2840-46-0x0000000007CF0000-0x0000000007D05000-memory.dmp

          Filesize

          84KB

        • memory/2840-45-0x0000000007CE0000-0x0000000007CEE000-memory.dmp

          Filesize

          56KB

        • memory/2840-44-0x0000000007CA0000-0x0000000007CB1000-memory.dmp

          Filesize

          68KB

        • memory/2840-43-0x0000000007D80000-0x0000000007E16000-memory.dmp

          Filesize

          600KB

        • memory/2840-42-0x0000000007C70000-0x0000000007C7A000-memory.dmp

          Filesize

          40KB

        • memory/2840-41-0x0000000007C30000-0x0000000007C4A000-memory.dmp

          Filesize

          104KB

        • memory/2840-40-0x0000000008280000-0x00000000088FA000-memory.dmp

          Filesize

          6.5MB

        • memory/2840-36-0x0000000007B10000-0x0000000007BB4000-memory.dmp

          Filesize

          656KB

        • memory/2840-37-0x0000000003270000-0x0000000003280000-memory.dmp

          Filesize

          64KB

        • memory/2840-24-0x0000000007AB0000-0x0000000007AE4000-memory.dmp

          Filesize

          208KB

        • memory/2840-39-0x0000000003270000-0x0000000003280000-memory.dmp

          Filesize

          64KB

        • memory/2840-35-0x0000000007AF0000-0x0000000007B0E000-memory.dmp

          Filesize

          120KB

        • memory/2840-26-0x0000000070490000-0x00000000707E7000-memory.dmp

          Filesize

          3.3MB

        • memory/4064-185-0x0000000005580000-0x00000000058D7000-memory.dmp

          Filesize

          3.3MB

        • memory/4064-187-0x0000000070230000-0x000000007027C000-memory.dmp

          Filesize

          304KB

        • memory/4064-188-0x0000000070480000-0x00000000707D7000-memory.dmp

          Filesize

          3.3MB

        • memory/4108-54-0x0000000003F10000-0x00000000047FB000-memory.dmp

          Filesize

          8.9MB

        • memory/4108-53-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/4108-2-0x0000000003F10000-0x00000000047FB000-memory.dmp

          Filesize

          8.9MB

        • memory/4108-1-0x0000000002170000-0x000000000256F000-memory.dmp

          Filesize

          4.0MB

        • memory/4108-3-0x0000000000400000-0x0000000001DF1000-memory.dmp

          Filesize

          25.9MB

        • memory/4252-111-0x00000000705F0000-0x0000000070947000-memory.dmp

          Filesize

          3.3MB

        • memory/4252-110-0x00000000703B0000-0x00000000703FC000-memory.dmp

          Filesize

          304KB

        • memory/4352-91-0x00000000705F0000-0x0000000070947000-memory.dmp

          Filesize

          3.3MB

        • memory/4352-90-0x00000000703B0000-0x00000000703FC000-memory.dmp

          Filesize

          304KB

        • memory/4500-63-0x00000000058D0000-0x0000000005C27000-memory.dmp

          Filesize

          3.3MB

        • memory/4500-77-0x0000000007380000-0x0000000007395000-memory.dmp

          Filesize

          84KB

        • memory/4500-76-0x0000000007330000-0x0000000007341000-memory.dmp

          Filesize

          68KB

        • memory/4500-75-0x0000000006FF0000-0x0000000007094000-memory.dmp

          Filesize

          656KB

        • memory/4500-66-0x00000000705F0000-0x0000000070947000-memory.dmp

          Filesize

          3.3MB

        • memory/4500-65-0x00000000703B0000-0x00000000703FC000-memory.dmp

          Filesize

          304KB

        • memory/4500-64-0x0000000005E30000-0x0000000005E7C000-memory.dmp

          Filesize

          304KB