Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/03/2025, 10:23

General

  • Target

    2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe

  • Size

    9.1MB

  • MD5

    b538bbf95474d2b3af7c9a35ca6bae17

  • SHA1

    a33fbad3a5601d52224a749a68dfbbd77eadbf2b

  • SHA256

    cdc6c87ca04b9ae34b819f3d394c370993d2ca046ddce4acc6b0a8e3c2aa3a6c

  • SHA512

    a56cc6d09d7416ae1880c8d757a1fb041c2a01da1314630d1eaee77684d78b8f91733e74f7c6cc473cc6f49968faa1aebc5eceb3ada3c6390946b7bbc07e1587

  • SSDEEP

    98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6: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\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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:3324
    • 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:1536
    • C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-17_b538bbf95474d2b3af7c9a35ca6bae17_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:4888
      • 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:3668
      • 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:376
        • 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:3948
      • 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:5696
      • 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:4116
      • 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:1032
        • 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:3852
        • 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:4488
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5440
          • 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:5832
          • 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:2032
          • 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:1604
          • 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:4668

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ycakjkny.wql.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

      3d086a433708053f9bf9523e1d87a4e8

      SHA1

      b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

      SHA256

      6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

      SHA512

      931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

      Filesize

      19KB

      MD5

      c17e85903f648beb007ca080f8d78670

      SHA1

      795807b5b3cc757515a1b8ef50b021ccd147640a

      SHA256

      db6a04826c1955ee454ee4d45b160366b8e1ee62074d8f22fc1c049a6e3d83a0

      SHA512

      109f8c2ee84c535ca00156ed77b722d033329c7d76a7cee884d8f0d071eb3db93797890e34ca6dd7ba4992ebfd0c395b89b0c6386521b212d19fb658d03b43cf

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

      Filesize

      19KB

      MD5

      d11361c57457b6840e7658b342a12b30

      SHA1

      4b87740c6f3d32d33fb1a63d4324a7550eb6e834

      SHA256

      1ce6b7f92aefc0f058e4ff75197cbe10a7ab8b6ad1f96830392c113bfacc9942

      SHA512

      e625a6e5c9fc1a19f3b257fa73b78d7a1da33720018c442360851d81e446fec6ef739a12ae1ce0f23826bae2e2553ee0fe0b4f7c0e4cd7421625a4874cb240ad

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

      Filesize

      19KB

      MD5

      cfc8fbf95228c9a25be822d3cd8b12c1

      SHA1

      d4cc9a42980c26a5b39d3481997fac13d843dc3d

      SHA256

      fee5968bf6230e9d1bcb37c838bc87e98544e799d4da1f0e2a74d55aa6d5be2e

      SHA512

      7a30946d80ee30718ea3b1fc96cc89ab302b39a397c55d5fc32e5f0da9791d82b200a09fded86fa30aef2ed35d603e47bed0e562bad9e01951a5d68fc21d0fa9

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

      Filesize

      19KB

      MD5

      15f3eff31159d023e322e9cdb04bc5d2

      SHA1

      08a368c254eeb955042bdd8bb55efd934bb8868b

      SHA256

      4adbe485cf8d407560f3f5557691e8e2bc6b4a181aa5dc9f3e74370f3a4a6032

      SHA512

      b2ab040f58d2071fdbfd67dffd18ed740a139fe5acf4fe9fcd93f133454e11024f06ddeb7869b7da84474d8c4508883788e420ef962380aabd51b5431745d4cb

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

      Filesize

      19KB

      MD5

      324120b2aad5ef2d1b974297554f925f

      SHA1

      4b154be7db69499e35e14c8e0af84a4edf90c058

      SHA256

      1fbebdbbcc7feba4c1e3aa6e322945e02865334c7326d3a56b235393f4e66865

      SHA512

      c06fadf68bc4666210ffc45a87f2a3212ac8bded8e1c9c64e97334aa86f9efaf39dbf1446174654199656f421155422f34f2a11fd9a4c96e2400f26e376b7356

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      b538bbf95474d2b3af7c9a35ca6bae17

      SHA1

      a33fbad3a5601d52224a749a68dfbbd77eadbf2b

      SHA256

      cdc6c87ca04b9ae34b819f3d394c370993d2ca046ddce4acc6b0a8e3c2aa3a6c

      SHA512

      a56cc6d09d7416ae1880c8d757a1fb041c2a01da1314630d1eaee77684d78b8f91733e74f7c6cc473cc6f49968faa1aebc5eceb3ada3c6390946b7bbc07e1587

    • memory/1536-50-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-24-0x0000000007070000-0x00000000070A2000-memory.dmp

      Filesize

      200KB

    • memory/1536-7-0x0000000005380000-0x00000000053E6000-memory.dmp

      Filesize

      408KB

    • memory/1536-17-0x00000000054B0000-0x0000000005804000-memory.dmp

      Filesize

      3.3MB

    • memory/1536-18-0x0000000005AF0000-0x0000000005B0E000-memory.dmp

      Filesize

      120KB

    • memory/1536-19-0x0000000005B30000-0x0000000005B7C000-memory.dmp

      Filesize

      304KB

    • memory/1536-20-0x0000000006060000-0x00000000060A4000-memory.dmp

      Filesize

      272KB

    • memory/1536-21-0x0000000006E30000-0x0000000006EA6000-memory.dmp

      Filesize

      472KB

    • memory/1536-22-0x0000000007530000-0x0000000007BAA000-memory.dmp

      Filesize

      6.5MB

    • memory/1536-23-0x0000000006EB0000-0x0000000006ECA000-memory.dmp

      Filesize

      104KB

    • memory/1536-27-0x0000000071240000-0x0000000071594000-memory.dmp

      Filesize

      3.3MB

    • memory/1536-26-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-37-0x00000000070B0000-0x00000000070CE000-memory.dmp

      Filesize

      120KB

    • memory/1536-38-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-39-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-40-0x00000000070D0000-0x0000000007173000-memory.dmp

      Filesize

      652KB

    • memory/1536-25-0x0000000070AC0000-0x0000000070B0C000-memory.dmp

      Filesize

      304KB

    • memory/1536-4-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-41-0x00000000071C0000-0x00000000071CA000-memory.dmp

      Filesize

      40KB

    • memory/1536-42-0x0000000007280000-0x0000000007316000-memory.dmp

      Filesize

      600KB

    • memory/1536-43-0x00000000071E0000-0x00000000071F1000-memory.dmp

      Filesize

      68KB

    • memory/1536-44-0x0000000007220000-0x000000000722E000-memory.dmp

      Filesize

      56KB

    • memory/1536-45-0x0000000007230000-0x0000000007244000-memory.dmp

      Filesize

      80KB

    • memory/1536-46-0x0000000007320000-0x000000000733A000-memory.dmp

      Filesize

      104KB

    • memory/1536-47-0x0000000007270000-0x0000000007278000-memory.dmp

      Filesize

      32KB

    • memory/1536-5-0x0000000005270000-0x0000000005292000-memory.dmp

      Filesize

      136KB

    • memory/1536-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

      Filesize

      4KB

    • memory/1536-3-0x0000000074C20000-0x00000000753D0000-memory.dmp

      Filesize

      7.7MB

    • memory/1536-2-0x0000000004C10000-0x0000000005238000-memory.dmp

      Filesize

      6.2MB

    • memory/1536-1-0x0000000002520000-0x0000000002556000-memory.dmp

      Filesize

      216KB

    • memory/1536-6-0x0000000005310000-0x0000000005376000-memory.dmp

      Filesize

      408KB

    • memory/2032-192-0x00000000057A0000-0x0000000005AF4000-memory.dmp

      Filesize

      3.3MB

    • memory/2032-194-0x0000000070A40000-0x0000000070A8C000-memory.dmp

      Filesize

      304KB

    • memory/2032-195-0x0000000070BE0000-0x0000000070F34000-memory.dmp

      Filesize

      3.3MB

    • memory/3668-74-0x0000000007410000-0x0000000007421000-memory.dmp

      Filesize

      68KB

    • memory/3668-62-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

      Filesize

      304KB

    • memory/3668-63-0x0000000070D40000-0x0000000071094000-memory.dmp

      Filesize

      3.3MB

    • memory/3668-60-0x0000000005B40000-0x0000000005E94000-memory.dmp

      Filesize

      3.3MB

    • memory/3668-75-0x0000000007460000-0x0000000007474000-memory.dmp

      Filesize

      80KB

    • memory/3668-73-0x0000000007100000-0x00000000071A3000-memory.dmp

      Filesize

      652KB

    • memory/3668-61-0x0000000005FB0000-0x0000000005FFC000-memory.dmp

      Filesize

      304KB

    • memory/3852-141-0x0000000070B20000-0x0000000070B6C000-memory.dmp

      Filesize

      304KB

    • memory/3852-142-0x0000000070CA0000-0x0000000070FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/3852-152-0x00000000079E0000-0x0000000007A83000-memory.dmp

      Filesize

      652KB

    • memory/3852-153-0x0000000007D60000-0x0000000007D71000-memory.dmp

      Filesize

      68KB

    • memory/3852-154-0x0000000006160000-0x0000000006174000-memory.dmp

      Filesize

      80KB

    • memory/3852-140-0x00000000067F0000-0x000000000683C000-memory.dmp

      Filesize

      304KB

    • memory/3852-138-0x00000000062F0000-0x0000000006644000-memory.dmp

      Filesize

      3.3MB

    • memory/4116-111-0x00000000056B0000-0x0000000005A04000-memory.dmp

      Filesize

      3.3MB

    • memory/4116-113-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

      Filesize

      304KB

    • memory/4116-114-0x0000000071360000-0x00000000716B4000-memory.dmp

      Filesize

      3.3MB

    • memory/5696-91-0x0000000070D50000-0x00000000710A4000-memory.dmp

      Filesize

      3.3MB

    • memory/5696-90-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

      Filesize

      304KB

    • memory/5696-88-0x0000000006050000-0x00000000063A4000-memory.dmp

      Filesize

      3.3MB

    • memory/5832-169-0x0000000070BC0000-0x0000000070F14000-memory.dmp

      Filesize

      3.3MB

    • memory/5832-179-0x0000000007530000-0x00000000075D3000-memory.dmp

      Filesize

      652KB

    • memory/5832-180-0x0000000007880000-0x0000000007891000-memory.dmp

      Filesize

      68KB

    • memory/5832-181-0x00000000060A0000-0x00000000060B4000-memory.dmp

      Filesize

      80KB

    • memory/5832-168-0x0000000070A40000-0x0000000070A8C000-memory.dmp

      Filesize

      304KB

    • memory/5832-167-0x0000000006310000-0x000000000635C000-memory.dmp

      Filesize

      304KB

    • memory/5832-165-0x0000000005D20000-0x0000000006074000-memory.dmp

      Filesize

      3.3MB