Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/03/2025, 17:38

General

  • Target

    2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe

  • Size

    9.1MB

  • MD5

    8231f7bd4463f9bd845c7b5e914c6bab

  • SHA1

    81e18ad03797d25a3b62d6b77e629c9d20423d5d

  • SHA256

    f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef

  • SHA512

    47a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54

  • SSDEEP

    98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6r:sxEvYjVzANihwN8

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\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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:3280
    • 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:5500
    • C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-26_8231f7bd4463f9bd845c7b5e914c6bab_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:2760
      • 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:4788
      • 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:5164
        • 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:1176
      • 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:1520
      • 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:1920
      • 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:4372
        • 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:1764
        • 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:5920
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1948
          • 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:3412
          • 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:4180
          • 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:4744
          • 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:3700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y0apstj4.mqw.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

      0a80c64e6823c3592174d550e63c5d2f

      SHA1

      abc9398441db8f73292907bdd83ed667a052fbf5

      SHA256

      db62d7384c235fff44b00be7d1ea15e804be7720bb90ac79ae21b6fb60fdcdc9

      SHA512

      5aafdd5794075781eed54ea521d59bd88065e5b0ad147c3be86a28d08db1a09fd4ce271580906ab1460a8c8f0d28cc5f86d04846f92ad074dbb45de889041915

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

      Filesize

      19KB

      MD5

      c3b445e2f9ad2a02059ad61f8cc77839

      SHA1

      3ce45b97b11e723a0bd700830a4358151aba57c2

      SHA256

      45b4bc18510c70070eb95fc28bda330bee17eed3a7d1f0adf9ac2d61114da35d

      SHA512

      8304e3b71f98e0758b21a23645c8977cb78d5d7b3c04b22e3d1d089f2275d5ae4707d28e1f409deaf904bb21f05730fdb84a047de98b5f5992096c09a2bcd1f9

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

      Filesize

      19KB

      MD5

      3c1260e82fe47a934a7f65b246c5e8d1

      SHA1

      2d75a200304ee9c82fd57cc3c9ce279afa1b948d

      SHA256

      fb3d5ebc82ca5d5d872576a52d9858e3f185a6b5e27d968b41086bb640ce31ba

      SHA512

      81bedaa28665fa9ca465381ccf45ac36e03d947e8586b77d5bb705b84640fd5647037847edcdcdca34c45a0bc5be0caca8a7d91536fe4fb42ab9adc903d25108

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

      Filesize

      19KB

      MD5

      7aabafc99cd5245bacb0901ded72da74

      SHA1

      b57e6e38c88291b3464d8075262797d6df068f34

      SHA256

      6526b1074c22ac914e257d7f293db922f572b941a66b4b6c0923494c71878179

      SHA512

      16fb7d49977c287cb76a4ca84c6741372d3e0e8cffa1b6cf012fb31f7d286a6cff882d661b30d2e8640f6b78bfeea027655d61d71b6ff5a39ca84c08e77b233a

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

      Filesize

      19KB

      MD5

      080a7fa9d3fb8aad86d45ab7b0cf83a9

      SHA1

      e0fa38cc4b760dc9c1c40b02f7003ad699c7d73d

      SHA256

      9c893441e53a76af162874f86dcb26e6f0d02ed51bd4fc23e3584d12ac0df3bd

      SHA512

      c1538fe8935629b54f493b3304a3806c932074bc6954a3f2d5f0bb535d7762bda8df54f419e779bf630bae0ac3ab510a565cac1a1bcc58b7062799fa69198941

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      8231f7bd4463f9bd845c7b5e914c6bab

      SHA1

      81e18ad03797d25a3b62d6b77e629c9d20423d5d

      SHA256

      f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef

      SHA512

      47a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54

    • memory/1520-89-0x0000000005A10000-0x0000000005D64000-memory.dmp

      Filesize

      3.3MB

    • memory/1520-91-0x0000000070C40000-0x0000000070C8C000-memory.dmp

      Filesize

      304KB

    • memory/1520-92-0x00000000713E0000-0x0000000071734000-memory.dmp

      Filesize

      3.3MB

    • memory/1764-139-0x00000000057C0000-0x0000000005B14000-memory.dmp

      Filesize

      3.3MB

    • memory/1764-155-0x00000000056E0000-0x00000000056F4000-memory.dmp

      Filesize

      80KB

    • memory/1764-154-0x0000000005500000-0x0000000005511000-memory.dmp

      Filesize

      68KB

    • memory/1764-153-0x0000000006EB0000-0x0000000006F53000-memory.dmp

      Filesize

      652KB

    • memory/1764-142-0x0000000070BA0000-0x0000000070BEC000-memory.dmp

      Filesize

      304KB

    • memory/1764-143-0x0000000070D20000-0x0000000071074000-memory.dmp

      Filesize

      3.3MB

    • memory/1764-141-0x0000000006060000-0x00000000060AC000-memory.dmp

      Filesize

      304KB

    • memory/1920-115-0x0000000071400000-0x0000000071754000-memory.dmp

      Filesize

      3.3MB

    • memory/1920-108-0x0000000005580000-0x00000000058D4000-memory.dmp

      Filesize

      3.3MB

    • memory/1920-114-0x0000000070C40000-0x0000000070C8C000-memory.dmp

      Filesize

      304KB

    • memory/3412-169-0x0000000070AC0000-0x0000000070B0C000-memory.dmp

      Filesize

      304KB

    • memory/3412-170-0x0000000071250000-0x00000000715A4000-memory.dmp

      Filesize

      3.3MB

    • memory/3412-157-0x0000000005910000-0x0000000005C64000-memory.dmp

      Filesize

      3.3MB

    • memory/3412-180-0x00000000071F0000-0x0000000007293000-memory.dmp

      Filesize

      652KB

    • memory/3412-168-0x0000000006000000-0x000000000604C000-memory.dmp

      Filesize

      304KB

    • memory/3412-181-0x0000000007560000-0x0000000007571000-memory.dmp

      Filesize

      68KB

    • memory/3412-182-0x0000000005DC0000-0x0000000005DD4000-memory.dmp

      Filesize

      80KB

    • memory/4180-194-0x0000000070AC0000-0x0000000070B0C000-memory.dmp

      Filesize

      304KB

    • memory/4180-195-0x0000000071250000-0x00000000715A4000-memory.dmp

      Filesize

      3.3MB

    • memory/4788-62-0x0000000005E20000-0x0000000005E6C000-memory.dmp

      Filesize

      304KB

    • memory/4788-75-0x00000000072E0000-0x00000000072F1000-memory.dmp

      Filesize

      68KB

    • memory/4788-61-0x0000000005880000-0x0000000005BD4000-memory.dmp

      Filesize

      3.3MB

    • memory/4788-76-0x0000000007330000-0x0000000007344000-memory.dmp

      Filesize

      80KB

    • memory/4788-63-0x0000000070C40000-0x0000000070C8C000-memory.dmp

      Filesize

      304KB

    • memory/4788-64-0x0000000070DC0000-0x0000000071114000-memory.dmp

      Filesize

      3.3MB

    • memory/4788-74-0x0000000006FB0000-0x0000000007053000-memory.dmp

      Filesize

      652KB

    • memory/5500-38-0x0000000007BD0000-0x0000000007C73000-memory.dmp

      Filesize

      652KB

    • memory/5500-24-0x0000000007B70000-0x0000000007BA2000-memory.dmp

      Filesize

      200KB

    • memory/5500-48-0x0000000007D70000-0x0000000007D78000-memory.dmp

      Filesize

      32KB

    • memory/5500-47-0x0000000007D80000-0x0000000007D9A000-memory.dmp

      Filesize

      104KB

    • memory/5500-46-0x0000000007D30000-0x0000000007D44000-memory.dmp

      Filesize

      80KB

    • memory/5500-45-0x0000000007D10000-0x0000000007D1E000-memory.dmp

      Filesize

      56KB

    • memory/5500-44-0x0000000007CD0000-0x0000000007CE1000-memory.dmp

      Filesize

      68KB

    • memory/5500-43-0x0000000007DD0000-0x0000000007E66000-memory.dmp

      Filesize

      600KB

    • memory/5500-42-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-40-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-41-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-39-0x0000000007CC0000-0x0000000007CCA000-memory.dmp

      Filesize

      40KB

    • memory/5500-51-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-37-0x0000000007BB0000-0x0000000007BCE000-memory.dmp

      Filesize

      120KB

    • memory/5500-27-0x0000000070CC0000-0x0000000071014000-memory.dmp

      Filesize

      3.3MB

    • memory/5500-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

      Filesize

      4KB

    • memory/5500-25-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-26-0x0000000070B40000-0x0000000070B8C000-memory.dmp

      Filesize

      304KB

    • memory/5500-23-0x00000000079B0000-0x00000000079CA000-memory.dmp

      Filesize

      104KB

    • memory/5500-22-0x0000000008010000-0x000000000868A000-memory.dmp

      Filesize

      6.5MB

    • memory/5500-21-0x0000000007710000-0x0000000007786000-memory.dmp

      Filesize

      472KB

    • memory/5500-20-0x0000000006B40000-0x0000000006B84000-memory.dmp

      Filesize

      272KB

    • memory/5500-18-0x00000000065E0000-0x00000000065FE000-memory.dmp

      Filesize

      120KB

    • memory/5500-19-0x0000000006620000-0x000000000666C000-memory.dmp

      Filesize

      304KB

    • memory/5500-17-0x00000000060B0000-0x0000000006404000-memory.dmp

      Filesize

      3.3MB

    • memory/5500-7-0x0000000005E00000-0x0000000005E66000-memory.dmp

      Filesize

      408KB

    • memory/5500-6-0x0000000005D10000-0x0000000005D76000-memory.dmp

      Filesize

      408KB

    • memory/5500-5-0x0000000005630000-0x0000000005652000-memory.dmp

      Filesize

      136KB

    • memory/5500-4-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-3-0x0000000074CA0000-0x0000000075450000-memory.dmp

      Filesize

      7.7MB

    • memory/5500-2-0x00000000056E0000-0x0000000005D08000-memory.dmp

      Filesize

      6.2MB

    • memory/5500-1-0x0000000005070000-0x00000000050A6000-memory.dmp

      Filesize

      216KB