Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/03/2025, 10:13

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:5588
    • 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:3040
    • 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:3680
      • 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:5772
      • 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:4752
        • 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:2840
      • 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:2700
      • 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:676
      • 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:316
        • 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:5548
        • 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:5472
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2728
          • 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:4092
          • 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:3268
          • 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:2012
          • 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:5368

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_covrth3r.4xo.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

      4bfb9dc241decd5431ab52e44afdc598

      SHA1

      b34eaf38f7bd8995889ec6b5b7f8716af3141d0a

      SHA256

      719ae58d0c46871a798372f373e67dfcf96f4cac3261de11bbc0d88a22836b7e

      SHA512

      c27b4f775ac6ab0609bb8c0d51d13b6fac09b292e4f4beb95dd80085f430f1c9c4d4a7097efbbcaf15c3b9da7e7887c6e303df2d53cf91968ee5b7aa4caa7886

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

      Filesize

      19KB

      MD5

      acb794ed245b0b3c976bf5f31796faa7

      SHA1

      256e1ac5bae6d742d821de721ca64c4643324d9c

      SHA256

      23180e1133cb0666e336f64086aef2a76ff15235a5af2e4f2a3ef0e78c6301d6

      SHA512

      94656d261b9b94a206447cb7bad5a1aeb4f3db46e1050aad5de3640e541674d346ced1dac9671c34ae20353667c769238d7fe4b3406d3ef9e0a1f341cc265f66

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

      Filesize

      19KB

      MD5

      ae70805765ef61a0d896803548996c36

      SHA1

      fb1198dcf0596d767ae902167352d63530d17475

      SHA256

      8b68f740316c8384ebad6622dadd35087dcf4d07dccd3a3e740333c09d4c314c

      SHA512

      cea208f56b29a6db7fe8d650d6fddc34141b3c4adb3f43d7d6a9d2354f4f25c3d32b63049302bec995f35c4f5d54e10da1f2ae29e395dfcb0af9f0dd034ccba4

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

      Filesize

      19KB

      MD5

      a43737d498e96bd996b38f09f01822f1

      SHA1

      acfc7421302c59dcf8db4ee6cc02b5ff9b0004fd

      SHA256

      a4290c14f6598462bc81a3962f3e5ba399195f78bc7ead407afb1654fbbde954

      SHA512

      3dc1637a86fd568b272d86c6c59508ab88d0d96ea4f6fd3f29de23e329152fcc035f879f39590273f865acb1afb9ac18629794e2beaacb9b9eda55cf878dd14c

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

      Filesize

      19KB

      MD5

      eeb8ac78f2055e1847cdc7418af9b7db

      SHA1

      a81add7417d9f42428b4ee66493a0224668c3a6a

      SHA256

      28f822c2a90ec666c6b325c264aaac2c170c319ea726654851ab3c7ee7e298f4

      SHA512

      ed0d7d9e4c3888df81e31bcf57354b3c300c429fa2e678f1dbf9050bcebae56cb976b51d5be23493776fa0538da507d8e54119b2d7a494c88d5c6197d3db1beb

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      b538bbf95474d2b3af7c9a35ca6bae17

      SHA1

      a33fbad3a5601d52224a749a68dfbbd77eadbf2b

      SHA256

      cdc6c87ca04b9ae34b819f3d394c370993d2ca046ddce4acc6b0a8e3c2aa3a6c

      SHA512

      a56cc6d09d7416ae1880c8d757a1fb041c2a01da1314630d1eaee77684d78b8f91733e74f7c6cc473cc6f49968faa1aebc5eceb3ada3c6390946b7bbc07e1587

    • memory/676-114-0x0000000070C70000-0x0000000070FC4000-memory.dmp

      Filesize

      3.3MB

    • memory/676-113-0x0000000070AF0000-0x0000000070B3C000-memory.dmp

      Filesize

      304KB

    • memory/2700-91-0x0000000070AF0000-0x0000000070B3C000-memory.dmp

      Filesize

      304KB

    • memory/2700-89-0x0000000005900000-0x0000000005C54000-memory.dmp

      Filesize

      3.3MB

    • memory/2700-92-0x0000000070C70000-0x0000000070FC4000-memory.dmp

      Filesize

      3.3MB

    • memory/3040-22-0x0000000008130000-0x00000000087AA000-memory.dmp

      Filesize

      6.5MB

    • memory/3040-15-0x0000000006130000-0x0000000006196000-memory.dmp

      Filesize

      408KB

    • memory/3040-26-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-25-0x00000000709F0000-0x0000000070A3C000-memory.dmp

      Filesize

      304KB

    • memory/3040-24-0x0000000007C70000-0x0000000007CA2000-memory.dmp

      Filesize

      200KB

    • memory/3040-27-0x0000000070B90000-0x0000000070EE4000-memory.dmp

      Filesize

      3.3MB

    • memory/3040-37-0x0000000007CB0000-0x0000000007CCE000-memory.dmp

      Filesize

      120KB

    • memory/3040-38-0x0000000007CD0000-0x0000000007D73000-memory.dmp

      Filesize

      652KB

    • memory/3040-39-0x0000000007DC0000-0x0000000007DCA000-memory.dmp

      Filesize

      40KB

    • memory/3040-42-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-41-0x0000000007EE0000-0x0000000007F76000-memory.dmp

      Filesize

      600KB

    • memory/3040-40-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-43-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-44-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

      Filesize

      68KB

    • memory/3040-45-0x0000000007E20000-0x0000000007E2E000-memory.dmp

      Filesize

      56KB

    • memory/3040-46-0x0000000007E40000-0x0000000007E54000-memory.dmp

      Filesize

      80KB

    • memory/3040-47-0x0000000007E80000-0x0000000007E9A000-memory.dmp

      Filesize

      104KB

    • memory/3040-48-0x0000000007E70000-0x0000000007E78000-memory.dmp

      Filesize

      32KB

    • memory/3040-51-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-1-0x00000000050B0000-0x00000000050E6000-memory.dmp

      Filesize

      216KB

    • memory/3040-0-0x0000000074B5E000-0x0000000074B5F000-memory.dmp

      Filesize

      4KB

    • memory/3040-3-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-21-0x0000000007A30000-0x0000000007AA6000-memory.dmp

      Filesize

      472KB

    • memory/3040-2-0x00000000057E0000-0x0000000005E08000-memory.dmp

      Filesize

      6.2MB

    • memory/3040-4-0x0000000074B50000-0x0000000075300000-memory.dmp

      Filesize

      7.7MB

    • memory/3040-16-0x0000000006230000-0x0000000006296000-memory.dmp

      Filesize

      408KB

    • memory/3040-20-0x0000000006C60000-0x0000000006CA4000-memory.dmp

      Filesize

      272KB

    • memory/3040-19-0x00000000067B0000-0x00000000067FC000-memory.dmp

      Filesize

      304KB

    • memory/3040-18-0x0000000006710000-0x000000000672E000-memory.dmp

      Filesize

      120KB

    • memory/3040-17-0x00000000063B0000-0x0000000006704000-memory.dmp

      Filesize

      3.3MB

    • memory/3040-14-0x0000000006090000-0x00000000060B2000-memory.dmp

      Filesize

      136KB

    • memory/3040-23-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

      Filesize

      104KB

    • memory/3268-183-0x0000000005FE0000-0x0000000006334000-memory.dmp

      Filesize

      3.3MB

    • memory/3268-194-0x0000000070970000-0x00000000709BC000-memory.dmp

      Filesize

      304KB

    • memory/3268-195-0x0000000071100000-0x0000000071454000-memory.dmp

      Filesize

      3.3MB

    • memory/4092-180-0x0000000006320000-0x0000000006331000-memory.dmp

      Filesize

      68KB

    • memory/4092-181-0x0000000006360000-0x0000000006374000-memory.dmp

      Filesize

      80KB

    • memory/4092-179-0x0000000007760000-0x0000000007803000-memory.dmp

      Filesize

      652KB

    • memory/4092-169-0x0000000070B00000-0x0000000070E54000-memory.dmp

      Filesize

      3.3MB

    • memory/4092-168-0x0000000070970000-0x00000000709BC000-memory.dmp

      Filesize

      304KB

    • memory/4092-167-0x0000000006560000-0x00000000065AC000-memory.dmp

      Filesize

      304KB

    • memory/4092-165-0x0000000005F50000-0x00000000062A4000-memory.dmp

      Filesize

      3.3MB

    • memory/5548-140-0x00000000066A0000-0x00000000066EC000-memory.dmp

      Filesize

      304KB

    • memory/5548-154-0x0000000005F50000-0x0000000005F64000-memory.dmp

      Filesize

      80KB

    • memory/5548-153-0x0000000007C10000-0x0000000007C21000-memory.dmp

      Filesize

      68KB

    • memory/5548-152-0x00000000078B0000-0x0000000007953000-memory.dmp

      Filesize

      652KB

    • memory/5548-142-0x00000000711F0000-0x0000000071544000-memory.dmp

      Filesize

      3.3MB

    • memory/5548-141-0x0000000070A50000-0x0000000070A9C000-memory.dmp

      Filesize

      304KB

    • memory/5548-138-0x0000000006000000-0x0000000006354000-memory.dmp

      Filesize

      3.3MB

    • memory/5772-76-0x0000000007560000-0x0000000007574000-memory.dmp

      Filesize

      80KB

    • memory/5772-75-0x0000000007510000-0x0000000007521000-memory.dmp

      Filesize

      68KB

    • memory/5772-74-0x00000000071E0000-0x0000000007283000-memory.dmp

      Filesize

      652KB

    • memory/5772-64-0x0000000071290000-0x00000000715E4000-memory.dmp

      Filesize

      3.3MB

    • memory/5772-63-0x0000000070AF0000-0x0000000070B3C000-memory.dmp

      Filesize

      304KB

    • memory/5772-62-0x0000000006050000-0x000000000609C000-memory.dmp

      Filesize

      304KB

    • memory/5772-57-0x00000000059C0000-0x0000000005D14000-memory.dmp

      Filesize

      3.3MB