Analysis

  • max time kernel
    149s
  • max time network
    128s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-05-2024 11:35

General

  • Target

    3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe

  • Size

    4.1MB

  • MD5

    3de09c78f5f3f439ae088e7a0811a24d

  • SHA1

    58e0a50a54ad4e7a16fdeeba1bf12158aa4dfc77

  • SHA256

    3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d

  • SHA512

    9e6314454cde365d2def585feb668314c87fbcb6d2e3d598fbfa91485f441fe35b3028c71736d10414b2b79bb4af8ff66e8c88418087fed0264dde34456c5f10

  • SSDEEP

    98304:+k/C6baF9NNXYvR+SQPyohxfWe3/GY9pAEj6U:+n6bazjovoyoHfX3/GYH/

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\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe
    "C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1360
    • 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:1424
    • C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.exe
      "C:\Users\Admin\AppData\Local\Temp\3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d.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:1600
      • 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:4884
      • 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:2260
        • 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:3688
      • 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:1976
      • 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:2420
      • 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:4860
        • 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:1952
        • 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:4984
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1776
          • 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:3860
          • 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:3836
          • 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:1232
          • 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:3448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mn0zvtpz.nko.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

      7fb0d66da5976c03d1c95f071789e6cb

      SHA1

      b155690a12a67b4e747154a06cf330a6e4d078b0

      SHA256

      3202842a8b82f24fab784a7810b90716da1e2ae6287590d8115618c7ac8ad7fe

      SHA512

      2cfa4ea76cd9c995d5484e92f0145e16da29a36a4d7961bbd125dd099002b5344adc39acabc292dbc4abf6e504e1d1e7aa5c4eb0a5bed1798223f9c8a0da2966

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

      Filesize

      19KB

      MD5

      7da4633a3a94ef53c65e6bb45bea5830

      SHA1

      0b5247862c7b434d2a7017640aad8b2281f87884

      SHA256

      205ec0979567440f3bade6ca323d4499a0df454e533b80ab38267b4e768df1a3

      SHA512

      81fa6e30387e69652bd84117ce8b6063db48903b22b90526384d9100c8d35409aa3f5e889c60c721c06e41aa607cab91e4dc2645e57fcfaf7820763f613927da

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

      Filesize

      19KB

      MD5

      2111f8b1e2a7f7ae1e8b9504c6a3f64d

      SHA1

      9219cb1f0e962b3205fcfcc1be235d844599e961

      SHA256

      5de797435ba1b753c687fff1707654f460e2ff46e8f1dba69f28c6d9402f1a6b

      SHA512

      2ff678670952db0d9c6938c6c51431148c0057be030b07c7e2a49597c9e676ed6fb74a2a0bbeaa051d640d7e594bf59a7576a761a73a6fb176fea4e902b373d1

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

      Filesize

      19KB

      MD5

      650f00baa6991678cd462c791b50d2fc

      SHA1

      68d767017d8859dcc419c426d4012bca433f4bb3

      SHA256

      7593bdc9e68d53d8965cd3068a891ec58f4f1631d53daf17f9f3d071f514aa34

      SHA512

      ccbb14779aac4a3a31c070ddd500363709a7bebc57c7c83a575aa89057571f95986c7f81215d9a4dcd842f48ad9c4197f354187243bfe0215d954b219967ee6a

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

      Filesize

      19KB

      MD5

      5160080fa6b92756bbdf7ec66c059780

      SHA1

      05cfe08aa9cb08f0a15226957c76f77c2a9e00c6

      SHA256

      08c09a586ff5d97d9bddfa32d70efd01e1c3ab1cf378ad1c7079b587651507f8

      SHA512

      9fbf966055b42310f1253e6a67f7988d187ceca3d6e32ed8002e1c9c83c5b447784fe0e0a948d3d910696d236dd4805d429871120a3d73aabac680eccc085ab8

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      3de09c78f5f3f439ae088e7a0811a24d

      SHA1

      58e0a50a54ad4e7a16fdeeba1bf12158aa4dfc77

      SHA256

      3e8a0be93e3c20bb2bebef0597d439032920e3485f611f572b000f77f56b8b4d

      SHA512

      9e6314454cde365d2def585feb668314c87fbcb6d2e3d598fbfa91485f441fe35b3028c71736d10414b2b79bb4af8ff66e8c88418087fed0264dde34456c5f10

    • memory/1360-53-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1360-1-0x00000000041F0000-0x00000000045F6000-memory.dmp

      Filesize

      4.0MB

    • memory/1360-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1360-2-0x0000000004600000-0x0000000004EEB000-memory.dmp

      Filesize

      8.9MB

    • memory/1360-51-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/1360-54-0x0000000004600000-0x0000000004EEB000-memory.dmp

      Filesize

      8.9MB

    • memory/1424-22-0x0000000005BF0000-0x0000000005C3C000-memory.dmp

      Filesize

      304KB

    • memory/1424-20-0x00000000056C0000-0x0000000005A17000-memory.dmp

      Filesize

      3.3MB

    • memory/1424-36-0x0000000007040000-0x000000000705E000-memory.dmp

      Filesize

      120KB

    • memory/1424-37-0x0000000007060000-0x0000000007104000-memory.dmp

      Filesize

      656KB

    • memory/1424-26-0x00000000708F0000-0x0000000070C47000-memory.dmp

      Filesize

      3.3MB

    • memory/1424-25-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/1424-24-0x0000000006FE0000-0x0000000007014000-memory.dmp

      Filesize

      208KB

    • memory/1424-39-0x0000000007180000-0x000000000719A000-memory.dmp

      Filesize

      104KB

    • memory/1424-40-0x0000000074470000-0x0000000074C21000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-38-0x00000000077C0000-0x0000000007E3A000-memory.dmp

      Filesize

      6.5MB

    • memory/1424-41-0x00000000071C0000-0x00000000071CA000-memory.dmp

      Filesize

      40KB

    • memory/1424-42-0x00000000072D0000-0x0000000007366000-memory.dmp

      Filesize

      600KB

    • memory/1424-43-0x00000000071E0000-0x00000000071F1000-memory.dmp

      Filesize

      68KB

    • memory/1424-44-0x0000000007230000-0x000000000723E000-memory.dmp

      Filesize

      56KB

    • memory/1424-45-0x0000000007240000-0x0000000007255000-memory.dmp

      Filesize

      84KB

    • memory/1424-46-0x0000000007290000-0x00000000072AA000-memory.dmp

      Filesize

      104KB

    • memory/1424-47-0x0000000007280000-0x0000000007288000-memory.dmp

      Filesize

      32KB

    • memory/1424-50-0x0000000074470000-0x0000000074C21000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-23-0x0000000005FF0000-0x0000000006036000-memory.dmp

      Filesize

      280KB

    • memory/1424-4-0x000000007447E000-0x000000007447F000-memory.dmp

      Filesize

      4KB

    • memory/1424-21-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

      Filesize

      120KB

    • memory/1424-27-0x0000000074470000-0x0000000074C21000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-5-0x0000000002720000-0x0000000002756000-memory.dmp

      Filesize

      216KB

    • memory/1424-7-0x0000000004F20000-0x000000000554A000-memory.dmp

      Filesize

      6.2MB

    • memory/1424-10-0x0000000005650000-0x00000000056B6000-memory.dmp

      Filesize

      408KB

    • memory/1424-6-0x0000000074470000-0x0000000074C21000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-16-0x0000000074470000-0x0000000074C21000-memory.dmp

      Filesize

      7.7MB

    • memory/1424-9-0x0000000004EB0000-0x0000000004F16000-memory.dmp

      Filesize

      408KB

    • memory/1424-8-0x0000000004D10000-0x0000000004D32000-memory.dmp

      Filesize

      136KB

    • memory/1600-123-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/1952-139-0x00000000708D0000-0x0000000070C27000-memory.dmp

      Filesize

      3.3MB

    • memory/1952-149-0x0000000007580000-0x0000000007591000-memory.dmp

      Filesize

      68KB

    • memory/1952-148-0x0000000007250000-0x00000000072F4000-memory.dmp

      Filesize

      656KB

    • memory/1952-135-0x0000000005A40000-0x0000000005D97000-memory.dmp

      Filesize

      3.3MB

    • memory/1952-150-0x0000000005DD0000-0x0000000005DE5000-memory.dmp

      Filesize

      84KB

    • memory/1952-137-0x0000000006560000-0x00000000065AC000-memory.dmp

      Filesize

      304KB

    • memory/1952-138-0x0000000070750000-0x000000007079C000-memory.dmp

      Filesize

      304KB

    • memory/1976-90-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/1976-91-0x0000000070A30000-0x0000000070D87000-memory.dmp

      Filesize

      3.3MB

    • memory/2420-110-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/2420-111-0x0000000070A30000-0x0000000070D87000-memory.dmp

      Filesize

      3.3MB

    • memory/3836-188-0x00000000707F0000-0x0000000070B47000-memory.dmp

      Filesize

      3.3MB

    • memory/3836-187-0x0000000070670000-0x00000000706BC000-memory.dmp

      Filesize

      304KB

    • memory/3836-185-0x00000000056C0000-0x0000000005A17000-memory.dmp

      Filesize

      3.3MB

    • memory/3860-163-0x0000000070670000-0x00000000706BC000-memory.dmp

      Filesize

      304KB

    • memory/3860-174-0x0000000007BB0000-0x0000000007BC1000-memory.dmp

      Filesize

      68KB

    • memory/3860-160-0x0000000006020000-0x0000000006377000-memory.dmp

      Filesize

      3.3MB

    • memory/3860-162-0x0000000006700000-0x000000000674C000-memory.dmp

      Filesize

      304KB

    • memory/3860-175-0x00000000063A0000-0x00000000063B5000-memory.dmp

      Filesize

      84KB

    • memory/3860-164-0x00000000708C0000-0x0000000070C17000-memory.dmp

      Filesize

      3.3MB

    • memory/3860-173-0x0000000007840000-0x00000000078E4000-memory.dmp

      Filesize

      656KB

    • memory/4860-198-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-209-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-215-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-214-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-213-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-212-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-211-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-210-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-204-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-205-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-206-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-207-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4860-208-0x0000000000400000-0x0000000002364000-memory.dmp

      Filesize

      31.4MB

    • memory/4884-76-0x00000000076D0000-0x00000000076E1000-memory.dmp

      Filesize

      68KB

    • memory/4884-55-0x0000000005C50000-0x0000000005FA7000-memory.dmp

      Filesize

      3.3MB

    • memory/4884-77-0x0000000007720000-0x0000000007735000-memory.dmp

      Filesize

      84KB

    • memory/4884-64-0x00000000061D0000-0x000000000621C000-memory.dmp

      Filesize

      304KB

    • memory/4884-65-0x00000000707F0000-0x000000007083C000-memory.dmp

      Filesize

      304KB

    • memory/4884-66-0x0000000070A30000-0x0000000070D87000-memory.dmp

      Filesize

      3.3MB

    • memory/4884-75-0x00000000073A0000-0x0000000007444000-memory.dmp

      Filesize

      656KB