Analysis

  • max time kernel
    150s
  • max time network
    146s
  • 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, 03:40

General

  • Target

    2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe

  • Size

    9.1MB

  • MD5

    a681709ff4bf3d52d95ca1a41efac2b7

  • SHA1

    c72d6f2689eb44498f033893f16d055855b4ddbb

  • SHA256

    fc216735766f30b6beb173625795db748da63f48cd2cc72208a074bc5ae691ad

  • SHA512

    c16fba1841460bde0b62fb175d74f4952c45a1ac4467b516c093a298ff279af540b7bf6b3e5b84cd793b69d428ca03097fbfe678dfe403e47123bbc755ba76bc

  • SSDEEP

    98304:GHxMZDJ1TRpxYVX9u2IazANf6hZytTD5iq6+:sxEvYjVzANihwNt

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_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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:4724
    • 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:3584
    • C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-20_a681709ff4bf3d52d95ca1a41efac2b7_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:3472
      • 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:2432
      • 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:4692
        • 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:996
      • 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:4396
      • 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:920
      • 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:4548
        • 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:2540
        • 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:2624
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4576
          • 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:216
          • 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:3112
          • 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: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:2676

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_skjhiuxd.gjt.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

      78e4415f2519425e23ba464d22def1f4

      SHA1

      8bf462d4e6337c7f07ec37bb9fdd0d43381ac8b1

      SHA256

      446654b278d22b66e2212ad63e45eca59f38eaf8c11d9eaff67dc7fe1465cc15

      SHA512

      846f25f545522c7c6d3509b7aba668d2231eedebce80c27ae4e415fab80fea3aae6527503150ca599df57c2ccfdcaaaf06948773e9dce25c9a38905a21cd2232

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

      Filesize

      19KB

      MD5

      218c797cdbf2ed4ea5337ed86871e0a8

      SHA1

      0d25ee0bbb2d68c50c3c84ef0edc087c2cc1e27c

      SHA256

      0b4ae128492b335dcf06c73d22a4510ea81df57e303d1693c20bf5c1d5e0220b

      SHA512

      6148bd47b5364980adb9e33fd8308ec1db0194fd02c23f65ba4e97f9dd345c97c8bb1c22f356b3f3ec826ec401bdc17c009874ff891e36b13a8c4372a1d292cb

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

      Filesize

      19KB

      MD5

      c3993eedbbd54b2f08127847eb53388c

      SHA1

      440a924063dc6cea8dfc56811060cce5e938db17

      SHA256

      0f2be462bd47b7c414b9e4a08bda9106ba18f931a2044c8cdceff54296d18a13

      SHA512

      ac448f3876fe1a7ae6e6558a4e0647b63b64ba0ea5f05b57024a1f6216590364bfa4fdc054887237a09e984f7bac2fcef74a2a9b8abbe2858637da969450cf88

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

      Filesize

      19KB

      MD5

      fe2a0c1d2a74873e2f9f683f54f22109

      SHA1

      40eeba6e800601cff1027a6cce2cf9e4deda0cec

      SHA256

      d8210e3b1e4c58f76d8bd661b208c09fbdd73ced44cbe277803489ae76e40f88

      SHA512

      cca75842bce59f0ec23d653553319a351ad8f6864da4a6a4a6d47d8559a40412c87c4bcab99918952be094401af32569677d0f3eaf7f9907d5789a257f4bd3d9

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

      Filesize

      19KB

      MD5

      d497d8e336dbedfd01bf42111044bbe1

      SHA1

      f2e5453a3da644b9bcc95d3023e1da2fb376f044

      SHA256

      4c330b72ae2d3092cfe70a0a582795cf118b4bcee36e81860e3576a602a9c953

      SHA512

      766da0ccf07306e29fdfc5980af0315f3d7d58b4ecb464f364617d874ed3d235be8dc68794474df5e2543de57505322b43536629c4c74ed77c37ad25fe171d5f

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      a681709ff4bf3d52d95ca1a41efac2b7

      SHA1

      c72d6f2689eb44498f033893f16d055855b4ddbb

      SHA256

      fc216735766f30b6beb173625795db748da63f48cd2cc72208a074bc5ae691ad

      SHA512

      c16fba1841460bde0b62fb175d74f4952c45a1ac4467b516c093a298ff279af540b7bf6b3e5b84cd793b69d428ca03097fbfe678dfe403e47123bbc755ba76bc

    • memory/216-167-0x00000000711B0000-0x0000000071504000-memory.dmp

      Filesize

      3.3MB

    • memory/216-165-0x0000000006040000-0x000000000608C000-memory.dmp

      Filesize

      304KB

    • memory/216-177-0x0000000007270000-0x0000000007313000-memory.dmp

      Filesize

      652KB

    • memory/216-163-0x0000000005910000-0x0000000005C64000-memory.dmp

      Filesize

      3.3MB

    • memory/216-166-0x0000000070A20000-0x0000000070A6C000-memory.dmp

      Filesize

      304KB

    • memory/216-179-0x0000000005E50000-0x0000000005E64000-memory.dmp

      Filesize

      80KB

    • memory/216-178-0x0000000007560000-0x0000000007571000-memory.dmp

      Filesize

      68KB

    • memory/920-109-0x0000000005B10000-0x0000000005E64000-memory.dmp

      Filesize

      3.3MB

    • memory/920-112-0x0000000071360000-0x00000000716B4000-memory.dmp

      Filesize

      3.3MB

    • memory/920-111-0x0000000070BA0000-0x0000000070BEC000-memory.dmp

      Filesize

      304KB

    • memory/2432-52-0x0000000005C50000-0x0000000005FA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2432-74-0x00000000077A0000-0x00000000077B4000-memory.dmp

      Filesize

      80KB

    • memory/2432-73-0x0000000007750000-0x0000000007761000-memory.dmp

      Filesize

      68KB

    • memory/2432-61-0x0000000070BA0000-0x0000000070BEC000-memory.dmp

      Filesize

      304KB

    • memory/2432-62-0x0000000071330000-0x0000000071684000-memory.dmp

      Filesize

      3.3MB

    • memory/2432-72-0x0000000007420000-0x00000000074C3000-memory.dmp

      Filesize

      652KB

    • memory/2432-60-0x0000000006290000-0x00000000062DC000-memory.dmp

      Filesize

      304KB

    • memory/2540-150-0x0000000007830000-0x00000000078D3000-memory.dmp

      Filesize

      652KB

    • memory/2540-136-0x00000000060B0000-0x0000000006404000-memory.dmp

      Filesize

      3.3MB

    • memory/2540-152-0x0000000006430000-0x0000000006444000-memory.dmp

      Filesize

      80KB

    • memory/2540-151-0x00000000079D0000-0x00000000079E1000-memory.dmp

      Filesize

      68KB

    • memory/2540-140-0x0000000070C80000-0x0000000070FD4000-memory.dmp

      Filesize

      3.3MB

    • memory/2540-139-0x0000000070B00000-0x0000000070B4C000-memory.dmp

      Filesize

      304KB

    • memory/2540-138-0x0000000006620000-0x000000000666C000-memory.dmp

      Filesize

      304KB

    • memory/3112-192-0x0000000070A20000-0x0000000070A6C000-memory.dmp

      Filesize

      304KB

    • memory/3112-193-0x0000000070E20000-0x0000000071174000-memory.dmp

      Filesize

      3.3MB

    • memory/3112-190-0x0000000005990000-0x0000000005CE4000-memory.dmp

      Filesize

      3.3MB

    • memory/3584-37-0x0000000007CB0000-0x0000000007CCE000-memory.dmp

      Filesize

      120KB

    • memory/3584-0-0x0000000074C0E000-0x0000000074C0F000-memory.dmp

      Filesize

      4KB

    • memory/3584-40-0x0000000007DC0000-0x0000000007DCA000-memory.dmp

      Filesize

      40KB

    • memory/3584-39-0x0000000074C00000-0x00000000753B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3584-1-0x0000000005120000-0x0000000005156000-memory.dmp

      Filesize

      216KB

    • memory/3584-46-0x0000000007E70000-0x0000000007E78000-memory.dmp

      Filesize

      32KB

    • memory/3584-38-0x0000000007CD0000-0x0000000007D73000-memory.dmp

      Filesize

      652KB

    • memory/3584-27-0x0000000070E90000-0x00000000711E4000-memory.dmp

      Filesize

      3.3MB

    • memory/3584-22-0x0000000008130000-0x00000000087AA000-memory.dmp

      Filesize

      6.5MB

    • memory/3584-23-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

      Filesize

      104KB

    • memory/3584-21-0x0000000007A30000-0x0000000007AA6000-memory.dmp

      Filesize

      472KB

    • memory/3584-26-0x0000000070AA0000-0x0000000070AEC000-memory.dmp

      Filesize

      304KB

    • memory/3584-20-0x0000000006C70000-0x0000000006CB4000-memory.dmp

      Filesize

      272KB

    • memory/3584-41-0x0000000007EE0000-0x0000000007F76000-memory.dmp

      Filesize

      600KB

    • memory/3584-25-0x0000000074C00000-0x00000000753B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3584-44-0x0000000007E40000-0x0000000007E54000-memory.dmp

      Filesize

      80KB

    • memory/3584-42-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

      Filesize

      68KB

    • memory/3584-24-0x0000000007C70000-0x0000000007CA2000-memory.dmp

      Filesize

      200KB

    • memory/3584-43-0x0000000007E20000-0x0000000007E2E000-memory.dmp

      Filesize

      56KB

    • memory/3584-19-0x0000000006630000-0x000000000667C000-memory.dmp

      Filesize

      304KB

    • memory/3584-18-0x0000000006610000-0x000000000662E000-memory.dmp

      Filesize

      120KB

    • memory/3584-13-0x00000000060E0000-0x0000000006434000-memory.dmp

      Filesize

      3.3MB

    • memory/3584-6-0x00000000057C0000-0x0000000005826000-memory.dmp

      Filesize

      408KB

    • memory/3584-7-0x0000000005FF0000-0x0000000006056000-memory.dmp

      Filesize

      408KB

    • memory/3584-5-0x0000000005710000-0x0000000005732000-memory.dmp

      Filesize

      136KB

    • memory/3584-4-0x0000000074C00000-0x00000000753B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3584-3-0x0000000005850000-0x0000000005E78000-memory.dmp

      Filesize

      6.2MB

    • memory/3584-49-0x0000000074C00000-0x00000000753B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3584-2-0x0000000074C00000-0x00000000753B0000-memory.dmp

      Filesize

      7.7MB

    • memory/3584-45-0x0000000007E80000-0x0000000007E9A000-memory.dmp

      Filesize

      104KB

    • memory/4396-88-0x0000000070BA0000-0x0000000070BEC000-memory.dmp

      Filesize

      304KB

    • memory/4396-89-0x0000000071330000-0x0000000071684000-memory.dmp

      Filesize

      3.3MB