Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250313-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250313-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/03/2025, 07:19

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:2664
    • 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:1236
    • 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:4860
      • 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:4868
      • 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:5276
        • 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:4836
      • 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:5288
      • 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:3056
      • 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:5888
        • 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:5520
        • 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:6072
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2136
          • 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:2512
          • 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:3600
          • 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:2288
          • 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:5024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ytbjtyh2.lez.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

      7ac1876afc62487d26ac7c3d255ecaa8

      SHA1

      050aa71ad2759fb1629dd2b03edcf0c5ea268e65

      SHA256

      29b2320a1edd045ee03cc3483280972efcd7391fd1f0fb72483608b11decc94a

      SHA512

      a48750d311b69d3f5550dc2f1b422bd4a04f26c5758c7408770ae4737d3d229c0f437bb95f240b482df1128eea347b4cf35b7a480c22e1338d6a0f8ac7903b97

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

      Filesize

      19KB

      MD5

      6b1d52689f319ca7a2d98a35afd90774

      SHA1

      3af0746151088b2ca411835ab8b5d4ac3eccc7aa

      SHA256

      2c6b62a8b3350cab03c781afacf1a054ae8c08439a7f9131795539201e18c45d

      SHA512

      7141067289b52098ab7ecf3661f85ac6d61e8df92ad3c1457eefad9ba4b9fc8d81986789e03ea485783ae364cd43ff97d332e2d339322bf0fb38a8eb36568e78

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

      Filesize

      19KB

      MD5

      b7cc156790387e1eaaade10d397843c1

      SHA1

      e22fdd92ee56d62f801c144f0a4311c82000b939

      SHA256

      36ccef3fa09dd98936b2ffcc4f0800b0c7d7e3a69c1084eedab23ce2b4d0cd76

      SHA512

      61cd5e0e9ffe13a957d909cc2175810938172d4b476791450e6cef8afa0067dc7d567d5619d58eff95ad7b552bbc06f68ed8d06b11f15c9d842bb93dac395ec9

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

      Filesize

      19KB

      MD5

      a0cca14eb6cdfeea8a69ecc2cbbda8be

      SHA1

      6ede90957d1533355d7dc4d13294b8d04bbcdbcf

      SHA256

      779e2ee460a63d5b9b039f0939641bdb4ff5f1bd89b199b5e9e163d9fc05b543

      SHA512

      0b2e09a873b309059cbf0efa6653e4556328ba0fd1a1b12566bb521df19953e2a22d239d7ae7172ff4ccb121b56fe780efc16b57c8759e82bf1cc8b5c17c851c

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

      Filesize

      19KB

      MD5

      a11c5069210bfb1c7b4e8323a8097644

      SHA1

      043c6b519dce4a3a8e4bbc41ed045eaab74ea2df

      SHA256

      0507d29a6876b4ddb41ca40ac1ec1a9115888f0e944e49b181979c1eb4caf234

      SHA512

      f1a15ad2495ea7f6e09efe2fa229d8315d33bae7f7951d63c84d01eb4c6a56b12fa785f5114074e8f544239699990aa4b09a536e258a129699a95956f438ebfa

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      fbb26757b5db69be0f26e658fb710398

      SHA1

      4c7087a61d860d49a96fd00fa8c618b0d5021e02

      SHA256

      7e7351bc58b00183dae43dd04e7fd450d526dbde964984b3e8f708761a30cd33

      SHA512

      e1add32897af2138b6809e1a3e3e6ef10bbddecaf37e584e4b67bd7e1dadca42e7d293234fe47e0d305df5f5280510328360d4ae073a927d4f9410b8e937f997

    • memory/1236-48-0x0000000007AC0000-0x0000000007AC8000-memory.dmp

      Filesize

      32KB

    • memory/1236-46-0x0000000007A90000-0x0000000007AA4000-memory.dmp

      Filesize

      80KB

    • memory/1236-6-0x0000000005420000-0x0000000005486000-memory.dmp

      Filesize

      408KB

    • memory/1236-17-0x0000000005D20000-0x0000000006074000-memory.dmp

      Filesize

      3.3MB

    • memory/1236-18-0x0000000006340000-0x000000000635E000-memory.dmp

      Filesize

      120KB

    • memory/1236-19-0x0000000006360000-0x00000000063AC000-memory.dmp

      Filesize

      304KB

    • memory/1236-20-0x0000000006960000-0x00000000069A4000-memory.dmp

      Filesize

      272KB

    • memory/1236-21-0x0000000007670000-0x00000000076E6000-memory.dmp

      Filesize

      472KB

    • memory/1236-22-0x0000000007D70000-0x00000000083EA000-memory.dmp

      Filesize

      6.5MB

    • memory/1236-23-0x0000000007710000-0x000000000772A000-memory.dmp

      Filesize

      104KB

    • memory/1236-26-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-25-0x00000000704D0000-0x000000007051C000-memory.dmp

      Filesize

      304KB

    • memory/1236-24-0x00000000078D0000-0x0000000007902000-memory.dmp

      Filesize

      200KB

    • memory/1236-27-0x0000000070C50000-0x0000000070FA4000-memory.dmp

      Filesize

      3.3MB

    • memory/1236-37-0x0000000007910000-0x000000000792E000-memory.dmp

      Filesize

      120KB

    • memory/1236-38-0x0000000007930000-0x00000000079D3000-memory.dmp

      Filesize

      652KB

    • memory/1236-39-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-40-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-42-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-41-0x0000000007A20000-0x0000000007A2A000-memory.dmp

      Filesize

      40KB

    • memory/1236-43-0x0000000007B30000-0x0000000007BC6000-memory.dmp

      Filesize

      600KB

    • memory/1236-44-0x0000000007A30000-0x0000000007A41000-memory.dmp

      Filesize

      68KB

    • memory/1236-45-0x0000000007A70000-0x0000000007A7E000-memory.dmp

      Filesize

      56KB

    • memory/1236-3-0x00000000054D0000-0x0000000005AF8000-memory.dmp

      Filesize

      6.2MB

    • memory/1236-47-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

      Filesize

      104KB

    • memory/1236-5-0x0000000005380000-0x00000000053A2000-memory.dmp

      Filesize

      136KB

    • memory/1236-51-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-4-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-0-0x000000007463E000-0x000000007463F000-memory.dmp

      Filesize

      4KB

    • memory/1236-2-0x0000000074630000-0x0000000074DE0000-memory.dmp

      Filesize

      7.7MB

    • memory/1236-1-0x0000000002D70000-0x0000000002DA6000-memory.dmp

      Filesize

      216KB

    • memory/1236-7-0x0000000005B70000-0x0000000005BD6000-memory.dmp

      Filesize

      408KB

    • memory/2512-179-0x0000000007450000-0x00000000074F3000-memory.dmp

      Filesize

      652KB

    • memory/2512-165-0x0000000005CD0000-0x0000000006024000-memory.dmp

      Filesize

      3.3MB

    • memory/2512-181-0x0000000005C60000-0x0000000005C74000-memory.dmp

      Filesize

      80KB

    • memory/2512-167-0x0000000006720000-0x000000000676C000-memory.dmp

      Filesize

      304KB

    • memory/2512-168-0x0000000070450000-0x000000007049C000-memory.dmp

      Filesize

      304KB

    • memory/2512-169-0x00000000705D0000-0x0000000070924000-memory.dmp

      Filesize

      3.3MB

    • memory/2512-180-0x00000000077B0000-0x00000000077C1000-memory.dmp

      Filesize

      68KB

    • memory/3056-113-0x00000000705D0000-0x000000007061C000-memory.dmp

      Filesize

      304KB

    • memory/3056-111-0x0000000005560000-0x00000000058B4000-memory.dmp

      Filesize

      3.3MB

    • memory/3056-114-0x0000000070770000-0x0000000070AC4000-memory.dmp

      Filesize

      3.3MB

    • memory/3600-195-0x0000000070BE0000-0x0000000070F34000-memory.dmp

      Filesize

      3.3MB

    • memory/3600-194-0x0000000070450000-0x000000007049C000-memory.dmp

      Filesize

      304KB

    • memory/3600-192-0x0000000005770000-0x0000000005AC4000-memory.dmp

      Filesize

      3.3MB

    • memory/4868-64-0x0000000070D70000-0x00000000710C4000-memory.dmp

      Filesize

      3.3MB

    • memory/4868-52-0x0000000006320000-0x0000000006674000-memory.dmp

      Filesize

      3.3MB

    • memory/4868-62-0x0000000006970000-0x00000000069BC000-memory.dmp

      Filesize

      304KB

    • memory/4868-63-0x00000000705D0000-0x000000007061C000-memory.dmp

      Filesize

      304KB

    • memory/4868-74-0x0000000007B00000-0x0000000007BA3000-memory.dmp

      Filesize

      652KB

    • memory/4868-75-0x0000000007E40000-0x0000000007E51000-memory.dmp

      Filesize

      68KB

    • memory/4868-76-0x0000000007E90000-0x0000000007EA4000-memory.dmp

      Filesize

      80KB

    • memory/5288-90-0x00000000705D0000-0x000000007061C000-memory.dmp

      Filesize

      304KB

    • memory/5288-91-0x0000000070D70000-0x00000000710C4000-memory.dmp

      Filesize

      3.3MB

    • memory/5520-142-0x0000000070CD0000-0x0000000071024000-memory.dmp

      Filesize

      3.3MB

    • memory/5520-138-0x0000000005A50000-0x0000000005DA4000-memory.dmp

      Filesize

      3.3MB

    • memory/5520-140-0x00000000060D0000-0x000000000611C000-memory.dmp

      Filesize

      304KB

    • memory/5520-141-0x0000000070530000-0x000000007057C000-memory.dmp

      Filesize

      304KB

    • memory/5520-153-0x0000000007650000-0x0000000007661000-memory.dmp

      Filesize

      68KB

    • memory/5520-152-0x0000000007310000-0x00000000073B3000-memory.dmp

      Filesize

      652KB

    • memory/5520-154-0x0000000005ED0000-0x0000000005EE4000-memory.dmp

      Filesize

      80KB