Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/03/2025, 07:26

General

  • Target

    2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe

  • Size

    9.1MB

  • MD5

    fbb26757b5db69be0f26e658fb710398

  • SHA1

    4c7087a61d860d49a96fd00fa8c618b0d5021e02

  • SHA256

    7e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33

  • SHA512

    e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997

  • SSDEEP

    98304:GHxMZDJ1TRpxYVX9u2IazANfAhZytTD5iqk:sxEvYjVzANIhwN

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba family
  • Glupteba payload 1 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.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • 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\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5028
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:408
    • C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-20_fbb26757b5db69be0f26e658fb710398_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4812
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:228
      • 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:2604
        • 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
          • Event Triggered Execution: Netsh Helper DLL
          PID:4392
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3000
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:640
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1224
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2228
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:5012
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2016
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • 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
            • Command and Scripting Interpreter: PowerShell
            • System Location Discovery: System Language Discovery
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3240
          • 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:1920
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3012

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pqynmeoa.gp4.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

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

      Filesize

      19KB

      MD5

      faabef9e9de040daf0afdbf1ae7cd86f

      SHA1

      d50945ae87f5ab107200b142b00298982bc83332

      SHA256

      3b53f2aaf0ad78f5ee58a1006ae6133431fea19ba86431b31ca86d38c09f78d6

      SHA512

      90330722ceff1add0b37081293acd7142efc3fc518d77eb628a92951b0d8c9497f1490982f550a24f88d5dab51ab649cf6a692e21be069ded74012b7081296e0

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

      Filesize

      19KB

      MD5

      4c67b2a86f7a9526872e469aa748144a

      SHA1

      c2e70c13b6c9fe5011db9835f9aead66f07db663

      SHA256

      3c77acf05d63ef88263e7c8e822575373d538d184f3fcd9b414fac6e06b9cbec

      SHA512

      672ac76be6e1c5cc87eeb915529405bee6cf2e879908b556be80686442cde44efd9026a8ac7db5d723453c7103c47c604ac856fd8a1572554cf04510f4b36aac

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

      Filesize

      19KB

      MD5

      de7ef46872860ea1abd66f07a4cd6474

      SHA1

      87f9fd59a1c9c4d081519b5e47e3e3b6ee200d31

      SHA256

      4a5608bc1b7d40ab75cdccfce883a73804918c80059368090245424629af88f5

      SHA512

      fda73196e988a252688d1fd482847148e9dbe45dc36bd02d8a1ebae82dc0b23b98181acce76312294e612e204c2f85d2701f0dded0e4961e28e706e2d5e872d7

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

      Filesize

      19KB

      MD5

      1d1bd3dcde79342c46dbfeeaf85234b4

      SHA1

      677b80829c7665cec38d219a5a96b70b7bf49a75

      SHA256

      70dc6f472fb6e6c1884998b862440d1cb20a45f9b5544c4f0935491220c8b9bb

      SHA512

      62b6234fcff9324dfed591fc58c6d85b178e804b266efacab1f5c52c242f939e884a6c03bcb19494c541c251ef8df32a7638b9088d7cb082a081aba49cd8cb8c

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

      Filesize

      19KB

      MD5

      912325206f79abdb84b6f6310e29209b

      SHA1

      cfe413f7b84e649d9d8910ac37787eabb8d0e46a

      SHA256

      0b23ef1f32c64a04d934c7c5575a146f9989a63cbd6c1691532490e211d9a329

      SHA512

      8d2a76fa118853d26ac787c82eddeae6367be42ac9d307fb0bb9e0e203e46f4d789b0802664f9b9db6633350d06ca6f93c5475c3e078e3d08fb654929e9be3fa

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      fbb26757b5db69be0f26e658fb710398

      SHA1

      4c7087a61d860d49a96fd00fa8c618b0d5021e02

      SHA256

      7e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33

      SHA512

      e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997

    • memory/228-61-0x0000000006170000-0x00000000064C4000-memory.dmp

      Filesize

      3.3MB

    • memory/228-76-0x0000000007D10000-0x0000000007D24000-memory.dmp

      Filesize

      80KB

    • memory/228-75-0x0000000007CC0000-0x0000000007CD1000-memory.dmp

      Filesize

      68KB

    • memory/228-74-0x00000000079C0000-0x0000000007A63000-memory.dmp

      Filesize

      652KB

    • memory/228-64-0x0000000070B50000-0x0000000070EA4000-memory.dmp

      Filesize

      3.3MB

    • memory/228-63-0x00000000703B0000-0x00000000703FC000-memory.dmp

      Filesize

      304KB

    • memory/228-62-0x00000000068A0000-0x00000000068EC000-memory.dmp

      Filesize

      304KB

    • memory/408-24-0x00000000079D0000-0x0000000007A02000-memory.dmp

      Filesize

      200KB

    • memory/408-25-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-26-0x00000000702B0000-0x00000000702FC000-memory.dmp

      Filesize

      304KB

    • memory/408-27-0x0000000070430000-0x0000000070784000-memory.dmp

      Filesize

      3.3MB

    • memory/408-38-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-37-0x0000000007A10000-0x0000000007A2E000-memory.dmp

      Filesize

      120KB

    • memory/408-39-0x0000000007A30000-0x0000000007AD3000-memory.dmp

      Filesize

      652KB

    • memory/408-40-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-41-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-42-0x0000000007B20000-0x0000000007B2A000-memory.dmp

      Filesize

      40KB

    • memory/408-43-0x0000000007C30000-0x0000000007CC6000-memory.dmp

      Filesize

      600KB

    • memory/408-44-0x0000000007B30000-0x0000000007B41000-memory.dmp

      Filesize

      68KB

    • memory/408-45-0x0000000007B70000-0x0000000007B7E000-memory.dmp

      Filesize

      56KB

    • memory/408-46-0x0000000007B90000-0x0000000007BA4000-memory.dmp

      Filesize

      80KB

    • memory/408-47-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

      Filesize

      104KB

    • memory/408-48-0x0000000007BD0000-0x0000000007BD8000-memory.dmp

      Filesize

      32KB

    • memory/408-51-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-4-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-23-0x0000000007810000-0x000000000782A000-memory.dmp

      Filesize

      104KB

    • memory/408-22-0x0000000007E70000-0x00000000084EA000-memory.dmp

      Filesize

      6.5MB

    • memory/408-21-0x0000000007770000-0x00000000077E6000-memory.dmp

      Filesize

      472KB

    • memory/408-20-0x00000000069F0000-0x0000000006A34000-memory.dmp

      Filesize

      272KB

    • memory/408-19-0x0000000006500000-0x000000000654C000-memory.dmp

      Filesize

      304KB

    • memory/408-18-0x0000000006440000-0x000000000645E000-memory.dmp

      Filesize

      120KB

    • memory/408-17-0x0000000005F40000-0x0000000006294000-memory.dmp

      Filesize

      3.3MB

    • memory/408-1-0x0000000002E60000-0x0000000002E96000-memory.dmp

      Filesize

      216KB

    • memory/408-7-0x0000000005750000-0x00000000057B6000-memory.dmp

      Filesize

      408KB

    • memory/408-2-0x0000000005910000-0x0000000005F38000-memory.dmp

      Filesize

      6.2MB

    • memory/408-3-0x0000000074410000-0x0000000074BC0000-memory.dmp

      Filesize

      7.7MB

    • memory/408-0-0x000000007441E000-0x000000007441F000-memory.dmp

      Filesize

      4KB

    • memory/408-6-0x0000000005630000-0x0000000005696000-memory.dmp

      Filesize

      408KB

    • memory/408-5-0x0000000005590000-0x00000000055B2000-memory.dmp

      Filesize

      136KB

    • memory/640-114-0x00000000703B0000-0x00000000703FC000-memory.dmp

      Filesize

      304KB

    • memory/640-115-0x0000000070530000-0x0000000070884000-memory.dmp

      Filesize

      3.3MB

    • memory/640-112-0x0000000005E70000-0x00000000061C4000-memory.dmp

      Filesize

      3.3MB

    • memory/2228-154-0x0000000007110000-0x0000000007121000-memory.dmp

      Filesize

      68KB

    • memory/2228-141-0x0000000005F70000-0x0000000005FBC000-memory.dmp

      Filesize

      304KB

    • memory/2228-142-0x0000000070310000-0x000000007035C000-memory.dmp

      Filesize

      304KB

    • memory/2228-143-0x0000000070AB0000-0x0000000070E04000-memory.dmp

      Filesize

      3.3MB

    • memory/2228-153-0x0000000006DF0000-0x0000000006E93000-memory.dmp

      Filesize

      652KB

    • memory/2228-130-0x00000000054A0000-0x00000000057F4000-memory.dmp

      Filesize

      3.3MB

    • memory/2228-155-0x00000000059B0000-0x00000000059C4000-memory.dmp

      Filesize

      80KB

    • memory/2600-168-0x0000000006020000-0x000000000606C000-memory.dmp

      Filesize

      304KB

    • memory/2600-166-0x0000000005910000-0x0000000005C64000-memory.dmp

      Filesize

      3.3MB

    • memory/2600-169-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/2600-170-0x00000000709C0000-0x0000000070D14000-memory.dmp

      Filesize

      3.3MB

    • memory/2600-180-0x0000000007230000-0x00000000072D3000-memory.dmp

      Filesize

      652KB

    • memory/2600-181-0x0000000007540000-0x0000000007551000-memory.dmp

      Filesize

      68KB

    • memory/2600-182-0x0000000005DB0000-0x0000000005DC4000-memory.dmp

      Filesize

      80KB

    • memory/3000-92-0x0000000070540000-0x0000000070894000-memory.dmp

      Filesize

      3.3MB

    • memory/3000-91-0x00000000703B0000-0x00000000703FC000-memory.dmp

      Filesize

      304KB

    • memory/3000-89-0x0000000005650000-0x00000000059A4000-memory.dmp

      Filesize

      3.3MB

    • memory/3240-193-0x0000000006200000-0x0000000006554000-memory.dmp

      Filesize

      3.3MB

    • memory/3240-195-0x0000000070230000-0x000000007027C000-memory.dmp

      Filesize

      304KB

    • memory/3240-196-0x00000000703B0000-0x0000000070704000-memory.dmp

      Filesize

      3.3MB