Analysis

  • max time kernel
    149s
  • max time network
    149s
  • 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 07:07

General

  • Target

    2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444.exe

  • Size

    4.2MB

  • MD5

    f82b4b019287eb16dd8cf7156c72a3f8

  • SHA1

    21d55251bc6cd27b60ecc4660c8d1fc73515967d

  • SHA256

    2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444

  • SHA512

    4840530f2a567a7d9093d3a5ecb290330096e1e5fcc6378685cfba211e1af0e22724748012f8c5d7cc07da5cb5762783223d2a8846be4aaaca17a58906ed1c5b

  • SSDEEP

    98304:73fclVPVcYr6prpRtwbp/CdqhSf/LSZIrcMLb3J1blMIAMQgOHn5ic:bfwpVWrpC6kSXLXv3PWIg9HnAc

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
  • 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\2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444.exe
    "C:\Users\Admin\AppData\Local\Temp\2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3484
    • C:\Users\Admin\AppData\Local\Temp\2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444.exe
      "C:\Users\Admin\AppData\Local\Temp\2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444.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:2864
      • 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:2824
      • 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:848
        • 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:3480
      • 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:2356
      • 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:380
      • 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:2592
        • 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:4916
        • 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:748
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1780
          • 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:528
          • 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:2372
          • 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:1436
          • 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:2824

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qy4ilmfd.mr3.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

      ac4917a885cf6050b1a483e4bc4d2ea5

      SHA1

      b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

      SHA256

      e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

      SHA512

      092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

      Filesize

      19KB

      MD5

      5e583f64b4981cea5b5c4ef6befc8741

      SHA1

      0c4c267a66891b76acc02fc723a2ef4f0ea00b02

      SHA256

      a2ffc8f7d5b33131946889fba86304d366813957f3c89ee0b02f1fe915c7d3cb

      SHA512

      becbac82f95c72352d13746953ef490441d6643945bdac6b2b7b47a76434eddd9ead4ffaee89eb68666f2f8837cfa024109fec37572919a3b7015a4efcbe5214

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

      Filesize

      19KB

      MD5

      fab18b61e7d46dc8480f01458f489437

      SHA1

      589dca2e4aacd24ada64f40782f17640374b893a

      SHA256

      200b395a7a3f0d423989f72aa019c283293c53fc42a442669daaed0585b7d0f3

      SHA512

      84038b9f5839f0e3678ca70c7de265ac61db3176df3a3e0dbf4d0585a8c2ac58a52f85c9009e9588b9272e119562fb94c7ddc018e54f4ee4bf1f6fe16708e8b9

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

      Filesize

      19KB

      MD5

      7797a6ea2b7021815711f5fe6107dacc

      SHA1

      066e3467b4f333141228f69a1ff5461b169f2a3c

      SHA256

      3612c3a711e01cc49690a4d99c3c63af7c3b97b5adfaab7b468dd04edbd2061f

      SHA512

      26f2f5a3872a1dfc9198e28809795f20bbb3f37ae1925bb83357d96a752eabc60f4d5dce02076ee47294e8aabaf8392506aab4524d0f8adedd844c1f4fe3f21d

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

      Filesize

      19KB

      MD5

      201b4a1a95ce472d4413f7b908358016

      SHA1

      dc50b8033a3211b6c7e569b71d6eb37765be81e0

      SHA256

      a6ec6dcbb4b31b5c8a737c30dbce96843f799b8627c65b902ab9c303c4260bb0

      SHA512

      14aa37f5ce14c9c5a491a99c271a2d8e303bd716af817e128ed10b4d1a9ed37fefdf754f8289d726d33ccbc8d0251eac32e46572e6efc54865abbe5317b264a8

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

      Filesize

      19KB

      MD5

      9aa5099d065cb4b1aa7fa18a904627eb

      SHA1

      0e1fb2a3d165a2e509052e1ca7ef08c91b4e3391

      SHA256

      5a57fdbb6cd3011d801817f1f7197162f2e809c67ab63d3c6e2218f52b68f5d3

      SHA512

      0760a61b2e9312fbd3a62480ac89b93fbc3fa5b6b130ec6431e4768bf1fe57528f6693eb6fe0d3a1541a53ca65f01dd2acd23f6ceca5bbdb6de2e33874dd3675

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      f82b4b019287eb16dd8cf7156c72a3f8

      SHA1

      21d55251bc6cd27b60ecc4660c8d1fc73515967d

      SHA256

      2c25fc2ae56e07885c9917acc5219a86f8b35bbc4005df0efe7beba881445444

      SHA512

      4840530f2a567a7d9093d3a5ecb290330096e1e5fcc6378685cfba211e1af0e22724748012f8c5d7cc07da5cb5762783223d2a8846be4aaaca17a58906ed1c5b

    • memory/380-114-0x0000000070EA0000-0x00000000711F7000-memory.dmp

      Filesize

      3.3MB

    • memory/380-113-0x0000000070C90000-0x0000000070CDC000-memory.dmp

      Filesize

      304KB

    • memory/380-111-0x0000000005920000-0x0000000005C77000-memory.dmp

      Filesize

      3.3MB

    • memory/528-168-0x0000000070B10000-0x0000000070B5C000-memory.dmp

      Filesize

      304KB

    • memory/528-157-0x0000000006280000-0x00000000065D7000-memory.dmp

      Filesize

      3.3MB

    • memory/528-167-0x00000000068C0000-0x000000000690C000-memory.dmp

      Filesize

      304KB

    • memory/528-169-0x0000000070D20000-0x0000000071077000-memory.dmp

      Filesize

      3.3MB

    • memory/528-178-0x0000000007A60000-0x0000000007B04000-memory.dmp

      Filesize

      656KB

    • memory/528-179-0x0000000006620000-0x0000000006631000-memory.dmp

      Filesize

      68KB

    • memory/528-180-0x0000000006660000-0x0000000006675000-memory.dmp

      Filesize

      84KB

    • memory/2356-93-0x0000000070E10000-0x0000000071167000-memory.dmp

      Filesize

      3.3MB

    • memory/2356-92-0x0000000070C90000-0x0000000070CDC000-memory.dmp

      Filesize

      304KB

    • memory/2372-193-0x0000000070C90000-0x0000000070FE7000-memory.dmp

      Filesize

      3.3MB

    • memory/2372-190-0x00000000057F0000-0x0000000005B47000-memory.dmp

      Filesize

      3.3MB

    • memory/2372-192-0x0000000070B10000-0x0000000070B5C000-memory.dmp

      Filesize

      304KB

    • memory/2592-215-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-209-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-225-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-211-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-213-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-227-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-156-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-217-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-219-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-221-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-223-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-229-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2592-231-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2744-1-0x00000000022C0000-0x00000000026BC000-memory.dmp

      Filesize

      4.0MB

    • memory/2744-56-0x0000000003F60000-0x000000000484B000-memory.dmp

      Filesize

      8.9MB

    • memory/2744-55-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2744-3-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/2744-2-0x0000000003F60000-0x000000000484B000-memory.dmp

      Filesize

      8.9MB

    • memory/2824-65-0x00000000057A0000-0x0000000005AF7000-memory.dmp

      Filesize

      3.3MB

    • memory/2824-79-0x0000000007150000-0x0000000007165000-memory.dmp

      Filesize

      84KB

    • memory/2824-78-0x0000000007100000-0x0000000007111000-memory.dmp

      Filesize

      68KB

    • memory/2824-77-0x0000000006BD0000-0x0000000006C74000-memory.dmp

      Filesize

      656KB

    • memory/2824-68-0x0000000070E10000-0x0000000071167000-memory.dmp

      Filesize

      3.3MB

    • memory/2824-67-0x0000000070C90000-0x0000000070CDC000-memory.dmp

      Filesize

      304KB

    • memory/2824-66-0x0000000005CB0000-0x0000000005CFC000-memory.dmp

      Filesize

      304KB

    • memory/2864-150-0x0000000000400000-0x0000000001DF3000-memory.dmp

      Filesize

      25.9MB

    • memory/3484-47-0x00000000076D0000-0x00000000076E5000-memory.dmp

      Filesize

      84KB

    • memory/3484-39-0x0000000004D60000-0x0000000004D70000-memory.dmp

      Filesize

      64KB

    • memory/3484-8-0x0000000004D60000-0x0000000004D70000-memory.dmp

      Filesize

      64KB

    • memory/3484-22-0x0000000006090000-0x00000000060DC000-memory.dmp

      Filesize

      304KB

    • memory/3484-5-0x0000000074910000-0x00000000750C1000-memory.dmp

      Filesize

      7.7MB

    • memory/3484-23-0x0000000006600000-0x0000000006646000-memory.dmp

      Filesize

      280KB

    • memory/3484-25-0x000000007FD10000-0x000000007FD20000-memory.dmp

      Filesize

      64KB

    • memory/3484-24-0x0000000007460000-0x0000000007494000-memory.dmp

      Filesize

      208KB

    • memory/3484-27-0x0000000070D90000-0x00000000710E7000-memory.dmp

      Filesize

      3.3MB

    • memory/3484-6-0x0000000004D60000-0x0000000004D70000-memory.dmp

      Filesize

      64KB

    • memory/3484-26-0x0000000070B80000-0x0000000070BCC000-memory.dmp

      Filesize

      304KB

    • memory/3484-36-0x00000000074C0000-0x00000000074DE000-memory.dmp

      Filesize

      120KB

    • memory/3484-9-0x00000000052C0000-0x00000000052E2000-memory.dmp

      Filesize

      136KB

    • memory/3484-10-0x00000000059D0000-0x0000000005A36000-memory.dmp

      Filesize

      408KB

    • memory/3484-4-0x0000000004BB0000-0x0000000004BE6000-memory.dmp

      Filesize

      216KB

    • memory/3484-11-0x0000000005B30000-0x0000000005B96000-memory.dmp

      Filesize

      408KB

    • memory/3484-20-0x0000000005BB0000-0x0000000005F07000-memory.dmp

      Filesize

      3.3MB

    • memory/3484-52-0x0000000074910000-0x00000000750C1000-memory.dmp

      Filesize

      7.7MB

    • memory/3484-49-0x00000000077B0000-0x00000000077B8000-memory.dmp

      Filesize

      32KB

    • memory/3484-48-0x00000000077D0000-0x00000000077EA000-memory.dmp

      Filesize

      104KB

    • memory/3484-21-0x0000000006070000-0x000000000608E000-memory.dmp

      Filesize

      120KB

    • memory/3484-46-0x00000000076C0000-0x00000000076CE000-memory.dmp

      Filesize

      56KB

    • memory/3484-45-0x0000000007680000-0x0000000007691000-memory.dmp

      Filesize

      68KB

    • memory/3484-44-0x0000000007710000-0x00000000077A6000-memory.dmp

      Filesize

      600KB

    • memory/3484-43-0x0000000007650000-0x000000000765A000-memory.dmp

      Filesize

      40KB

    • memory/3484-42-0x0000000007610000-0x000000000762A000-memory.dmp

      Filesize

      104KB

    • memory/3484-41-0x0000000007C50000-0x00000000082CA000-memory.dmp

      Filesize

      6.5MB

    • memory/3484-38-0x0000000004D60000-0x0000000004D70000-memory.dmp

      Filesize

      64KB

    • memory/3484-7-0x00000000053A0000-0x00000000059CA000-memory.dmp

      Filesize

      6.2MB

    • memory/3484-40-0x0000000004D60000-0x0000000004D70000-memory.dmp

      Filesize

      64KB

    • memory/3484-37-0x00000000074E0000-0x0000000007584000-memory.dmp

      Filesize

      656KB

    • memory/4916-153-0x0000000005DC0000-0x0000000005DD5000-memory.dmp

      Filesize

      84KB

    • memory/4916-152-0x0000000005D80000-0x0000000005D91000-memory.dmp

      Filesize

      68KB

    • memory/4916-151-0x0000000007200000-0x00000000072A4000-memory.dmp

      Filesize

      656KB

    • memory/4916-140-0x0000000070BF0000-0x0000000070C3C000-memory.dmp

      Filesize

      304KB

    • memory/4916-141-0x0000000070E20000-0x0000000071177000-memory.dmp

      Filesize

      3.3MB

    • memory/4916-139-0x0000000005FB0000-0x0000000005FFC000-memory.dmp

      Filesize

      304KB

    • memory/4916-137-0x00000000059D0000-0x0000000005D27000-memory.dmp

      Filesize

      3.3MB