Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    17-05-2024 19:16

General

  • Target

    77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe

  • Size

    4.1MB

  • MD5

    6da21da365f0c916e4bbd63448b1c6dc

  • SHA1

    63ce9c176d2729611e0d1e36286e98ac0a581bca

  • SHA256

    77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8

  • SHA512

    0503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24

  • SSDEEP

    98304:yZ3eWnmCP3Day+MGMrrH7Rp/OOmeNALbhxcJ3GFuqO9B+e2R0FJ3:YufQJ+wrvRp/OL3LVxY3GFuq2BkwJ3

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.

  • Program crash 1 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\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
    "C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1444
    • 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:4140
    • C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.exe
      "C:\Users\Admin\AppData\Local\Temp\77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8.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:2096
      • 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:3000
      • 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:8
        • 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:1004
      • 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:2244
      • 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:4552
      • 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:1808
        • 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:4940
        • 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:3012
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1388
          • 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:2088
          • 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:1444
          • 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:2108
          • 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:4748
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 996
        2⤵
        • Program crash
        PID:4168
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1444 -ip 1444
      1⤵
        PID:992

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tg4xaemc.h5o.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

        75897c62587ba70e88fc5fa84406f10e

        SHA1

        9ddee8c3d8f1e6a0464a1288395cd4841838273f

        SHA256

        fa23b8856acabc53c700113754946bda83c018128626e1f028f84323f99a63d5

        SHA512

        dcd61148c5ade894b9304ad40e399351ff2cc516b36cf6ed75527e4fe103b0254d1413e9e30d50c1b08fcd3b1892d0d4c33845d046ec6bcd7bc1f2ae5bdcd4e2

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

        Filesize

        19KB

        MD5

        5bf4c91e9ead9c9a18845c625aafa0d4

        SHA1

        57fbba12d694ffcf34ab59687f81fa54f169d51a

        SHA256

        9a5e880358c76fc6bf38ccf90c3773300f49b59508d3c300bab0f2189e499368

        SHA512

        a1492df0109436c79a38cb12cb0404fc573eaf4c676348ba8f078101e9c2c1a74c8f8a9a0660b050838825a65f524b75879ee8cc04b2b6f25155ace5699ca160

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

        Filesize

        19KB

        MD5

        7cc0608df97744e525e4c22773caf43c

        SHA1

        2aa3e30873bd8a405bf5ee4633a9d16824d7921b

        SHA256

        a68c5256641ff0217975641982ec01e0aba2ac1569bf64c44c0928829a20ed7a

        SHA512

        b0b9bafd219b259567bba7714c634917bc28ae2494a690a3ba8d32c7c401b395ece9037b105f7d83ebac6dadd43f6010d54dbf30323422c7e5073a4d08508080

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

        Filesize

        19KB

        MD5

        6f247545c3f8dc5e1f4c6732ba4f5c27

        SHA1

        26e0b33922badd084bcc59a1b565c8dfd78d5662

        SHA256

        da6c8b18ff8b504352c2ec357e50aba322d15bcba6eacc45a577c80bf7d54ac3

        SHA512

        83c5c0f1dce6ab6a5850d6923c35f900bd09a4a611c4b62294f9ac729769983ec97a5900b0b1999c8d1be8d59eeddd88a311f90ea6d8f41fdfec127cd5f63778

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

        Filesize

        19KB

        MD5

        9da9d7a15c65b592eec9d6f126fca741

        SHA1

        2cd04c9969fa33ec79b3d487908b2d07de7bda3b

        SHA256

        d350bf7cc2301756fe90f1a76923fc41979891f214c9c2e055e939dd511c306b

        SHA512

        eef0da14a34823bd8616a3566d18144ac91e0d55e5f538ea8367f88b5497a7cd49c8e7c6e2b13d66a9bfcc16f41812123d79f42da06b56a1d4ed1f419af38b8b

      • C:\Windows\rss\csrss.exe

        Filesize

        4.1MB

        MD5

        6da21da365f0c916e4bbd63448b1c6dc

        SHA1

        63ce9c176d2729611e0d1e36286e98ac0a581bca

        SHA256

        77a8ba8c5a19bc4a758385b5fff5ea1698dccf2381b974d0d99dc97b11f57be8

        SHA512

        0503587cb645f3aaf11cf96798b23a3ef053f76575828da54c627588b9cda292a35b25593df435348149d821e0182532838e4192934dc0b288286bbc59339a24

      • memory/1444-2-0x0000000004D10000-0x00000000055FB000-memory.dmp

        Filesize

        8.9MB

      • memory/1444-54-0x0000000004D10000-0x00000000055FB000-memory.dmp

        Filesize

        8.9MB

      • memory/1444-53-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/1444-52-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1444-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/1444-189-0x0000000071090000-0x00000000713E7000-memory.dmp

        Filesize

        3.3MB

      • memory/1444-1-0x0000000004900000-0x0000000004D01000-memory.dmp

        Filesize

        4.0MB

      • memory/1444-186-0x0000000006120000-0x0000000006477000-memory.dmp

        Filesize

        3.3MB

      • memory/1444-188-0x0000000070E60000-0x0000000070EAC000-memory.dmp

        Filesize

        304KB

      • memory/1808-206-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-215-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-204-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-205-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-208-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-213-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-214-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-212-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-211-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-210-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-216-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-209-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1808-207-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/2088-176-0x0000000005FA0000-0x0000000005FB5000-memory.dmp

        Filesize

        84KB

      • memory/2088-165-0x0000000071000000-0x0000000071357000-memory.dmp

        Filesize

        3.3MB

      • memory/2088-161-0x0000000005BE0000-0x0000000005F37000-memory.dmp

        Filesize

        3.3MB

      • memory/2088-163-0x0000000006360000-0x00000000063AC000-memory.dmp

        Filesize

        304KB

      • memory/2088-164-0x0000000070E60000-0x0000000070EAC000-memory.dmp

        Filesize

        304KB

      • memory/2088-174-0x00000000074B0000-0x0000000007554000-memory.dmp

        Filesize

        656KB

      • memory/2088-175-0x0000000007670000-0x0000000007681000-memory.dmp

        Filesize

        68KB

      • memory/2096-126-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/2244-92-0x0000000071220000-0x0000000071577000-memory.dmp

        Filesize

        3.3MB

      • memory/2244-91-0x0000000070FE0000-0x000000007102C000-memory.dmp

        Filesize

        304KB

      • memory/2244-81-0x0000000006410000-0x0000000006767000-memory.dmp

        Filesize

        3.3MB

      • memory/3000-76-0x00000000077B0000-0x00000000077C1000-memory.dmp

        Filesize

        68KB

      • memory/3000-77-0x0000000007800000-0x0000000007815000-memory.dmp

        Filesize

        84KB

      • memory/3000-66-0x0000000071160000-0x00000000714B7000-memory.dmp

        Filesize

        3.3MB

      • memory/3000-75-0x0000000007470000-0x0000000007514000-memory.dmp

        Filesize

        656KB

      • memory/3000-65-0x0000000070FE0000-0x000000007102C000-memory.dmp

        Filesize

        304KB

      • memory/3000-64-0x0000000006340000-0x000000000638C000-memory.dmp

        Filesize

        304KB

      • memory/3000-63-0x0000000005D90000-0x00000000060E7000-memory.dmp

        Filesize

        3.3MB

      • memory/4140-22-0x0000000005C40000-0x0000000005C8C000-memory.dmp

        Filesize

        304KB

      • memory/4140-21-0x0000000005C00000-0x0000000005C1E000-memory.dmp

        Filesize

        120KB

      • memory/4140-50-0x0000000074C60000-0x0000000075411000-memory.dmp

        Filesize

        7.7MB

      • memory/4140-47-0x00000000072F0000-0x00000000072F8000-memory.dmp

        Filesize

        32KB

      • memory/4140-46-0x00000000072D0000-0x00000000072EA000-memory.dmp

        Filesize

        104KB

      • memory/4140-4-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

        Filesize

        4KB

      • memory/4140-5-0x0000000002740000-0x0000000002776000-memory.dmp

        Filesize

        216KB

      • memory/4140-7-0x0000000004DF0000-0x000000000541A000-memory.dmp

        Filesize

        6.2MB

      • memory/4140-6-0x0000000074C60000-0x0000000075411000-memory.dmp

        Filesize

        7.7MB

      • memory/4140-8-0x0000000004D60000-0x0000000004D82000-memory.dmp

        Filesize

        136KB

      • memory/4140-9-0x0000000005490000-0x00000000054F6000-memory.dmp

        Filesize

        408KB

      • memory/4140-11-0x0000000074C60000-0x0000000075411000-memory.dmp

        Filesize

        7.7MB

      • memory/4140-45-0x0000000007280000-0x0000000007295000-memory.dmp

        Filesize

        84KB

      • memory/4140-44-0x0000000007270000-0x000000000727E000-memory.dmp

        Filesize

        56KB

      • memory/4140-43-0x0000000007220000-0x0000000007231000-memory.dmp

        Filesize

        68KB

      • memory/4140-42-0x0000000007310000-0x00000000073A6000-memory.dmp

        Filesize

        600KB

      • memory/4140-41-0x0000000007200000-0x000000000720A000-memory.dmp

        Filesize

        40KB

      • memory/4140-39-0x0000000007800000-0x0000000007E7A000-memory.dmp

        Filesize

        6.5MB

      • memory/4140-40-0x00000000071C0000-0x00000000071DA000-memory.dmp

        Filesize

        104KB

      • memory/4140-38-0x0000000074C60000-0x0000000075411000-memory.dmp

        Filesize

        7.7MB

      • memory/4140-27-0x0000000071060000-0x00000000713B7000-memory.dmp

        Filesize

        3.3MB

      • memory/4140-36-0x0000000007070000-0x000000000708E000-memory.dmp

        Filesize

        120KB

      • memory/4140-37-0x0000000007090000-0x0000000007134000-memory.dmp

        Filesize

        656KB

      • memory/4140-26-0x0000000074C60000-0x0000000075411000-memory.dmp

        Filesize

        7.7MB

      • memory/4140-25-0x0000000070ED0000-0x0000000070F1C000-memory.dmp

        Filesize

        304KB

      • memory/4140-24-0x0000000007030000-0x0000000007064000-memory.dmp

        Filesize

        208KB

      • memory/4140-23-0x0000000006020000-0x0000000006066000-memory.dmp

        Filesize

        280KB

      • memory/4140-10-0x00000000056F0000-0x0000000005756000-memory.dmp

        Filesize

        408KB

      • memory/4140-20-0x0000000005760000-0x0000000005AB7000-memory.dmp

        Filesize

        3.3MB

      • memory/4552-111-0x0000000070FE0000-0x000000007102C000-memory.dmp

        Filesize

        304KB

      • memory/4552-112-0x0000000071160000-0x00000000714B7000-memory.dmp

        Filesize

        3.3MB

      • memory/4940-151-0x00000000060E0000-0x00000000060F5000-memory.dmp

        Filesize

        84KB

      • memory/4940-150-0x0000000007CF0000-0x0000000007D01000-memory.dmp

        Filesize

        68KB

      • memory/4940-139-0x0000000070F40000-0x0000000070F8C000-memory.dmp

        Filesize

        304KB

      • memory/4940-149-0x00000000079C0000-0x0000000007A64000-memory.dmp

        Filesize

        656KB

      • memory/4940-140-0x00000000710C0000-0x0000000071417000-memory.dmp

        Filesize

        3.3MB

      • memory/4940-138-0x0000000006C70000-0x0000000006CBC000-memory.dmp

        Filesize

        304KB

      • memory/4940-136-0x0000000006380000-0x00000000066D7000-memory.dmp

        Filesize

        3.3MB