Analysis

  • max time kernel
    150s
  • max time network
    150s
  • 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, 17:53

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:5088
    • 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:4384
    • 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:2044
      • 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:5728
      • 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:2204
        • 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:528
      • 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:3368
      • 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:3944
      • 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:6068
        • 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:3936
        • 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:1104
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:964
          • 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:3788
          • 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:4252
          • 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:4712
          • 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:3040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ecet0ydr.h1e.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

      64e63f0f7613af232739d225a8dd5dfa

      SHA1

      8646f47097692228f374823ac3ce94a1f5449422

      SHA256

      6b9cc8e9cef4f8037cef89e928a835aeff8ef3c5bfe70b82065c817726152353

      SHA512

      87fdd57519ca0a25596932fbee899a720ad2bd1bcd533785c3db48e6a5fb2ff6be65c21a30645f6697064899cb791a3b388068f860cde4a1d9adf09751ed76cd

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

      Filesize

      19KB

      MD5

      594e0afb053a45a33f98a746a676482c

      SHA1

      719b4fbf76e555fd1da24102824a24a201ca73b7

      SHA256

      b3dc292e99b0897577495384964a385d30f321f1a819c177046ac0d10fec77e7

      SHA512

      afb3df772816180388db5ca43ab275c6b1ad35f263fccb74484d4d23cde8a6dabaf77a4a3cee31ed6e7d5954dabcb31caeb827206a5e11f9b7c49724ca05eb46

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

      Filesize

      19KB

      MD5

      8696da9a97d3b2ec7f79ee17395986c0

      SHA1

      35944364ff71dbc1b3f7ee2856e5ca9700ab4214

      SHA256

      590d7dc5df6a790a6bb1ba855cf2a5be0bc0cb3f6fabacfb5b8dc4875191fb28

      SHA512

      5c75963df7273a38a64e875d3666dcf7895b408fc04b1d7ec5995effde0113f945348e78e876bfb5f3536273e36c5ed77d0ef5ac2d3d016364bbe96aed618d28

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

      Filesize

      19KB

      MD5

      d8296c9ecb3697505981240feca33fc9

      SHA1

      2afa7a0f2bf6fdf813dc582eaf169ce71391fb7e

      SHA256

      72f6261ad85063f69d8fe08527806ab493f55d7929cc873067aa41c8a03e520b

      SHA512

      bdd01002ec5e0de7a11d9885632e6d16cbd40949b3822bc18900ee957cb22c05cf53abfdbe98bd76acc4ddc2b1b0e2adaaa9a3a9bdd62f2afb7990523039a354

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

      Filesize

      19KB

      MD5

      1deac9a149de2a218e5e27e8487018a7

      SHA1

      621ea397c64bf2dde480bfbb4b94742b3301653f

      SHA256

      bc351c4fd049f37c2a298256be7feb5480f8630b2bd47e29fc0ffa3e21886bf3

      SHA512

      2fa0e859c9a9da26035ff457fa23b894cbd2150891c744cf5ff231a85e130e50791895e7e2006342543575ed9e9d06ac76f2159312b25992e42468dce71e0fd1

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      8231f7bd4463f9bd845c7b5e914c6bab

      SHA1

      81e18ad03797d25a3b62d6b77e629c9d20423d5d

      SHA256

      f3e9aa98315b595e90cc2a55ee9b0a337a6b676c0319ae5b214464f92b76f3ef

      SHA512

      47a3d89ce76dc6c62333d2cfa43a453882439295e6b9fb7734fcf741513c4708f487ab1b6af30f239336c17baaa2a32725945a37f7eeb1e1526f1ae174306f54

    • memory/3368-89-0x00000000703E0000-0x000000007042C000-memory.dmp

      Filesize

      304KB

    • memory/3368-90-0x0000000070B80000-0x0000000070ED4000-memory.dmp

      Filesize

      3.3MB

    • memory/3788-179-0x00000000059A0000-0x00000000059B1000-memory.dmp

      Filesize

      68KB

    • memory/3788-166-0x0000000005F10000-0x0000000005F5C000-memory.dmp

      Filesize

      304KB

    • memory/3788-168-0x00000000709F0000-0x0000000070D44000-memory.dmp

      Filesize

      3.3MB

    • memory/3788-155-0x0000000005540000-0x0000000005894000-memory.dmp

      Filesize

      3.3MB

    • memory/3788-180-0x00000000059E0000-0x00000000059F4000-memory.dmp

      Filesize

      80KB

    • memory/3788-178-0x0000000006DE0000-0x0000000006E83000-memory.dmp

      Filesize

      652KB

    • memory/3788-167-0x0000000070260000-0x00000000702AC000-memory.dmp

      Filesize

      304KB

    • memory/3936-139-0x0000000005E10000-0x0000000005E5C000-memory.dmp

      Filesize

      304KB

    • memory/3936-140-0x0000000070340000-0x000000007038C000-memory.dmp

      Filesize

      304KB

    • memory/3936-141-0x0000000070AF0000-0x0000000070E44000-memory.dmp

      Filesize

      3.3MB

    • memory/3936-151-0x0000000007010000-0x00000000070B3000-memory.dmp

      Filesize

      652KB

    • memory/3936-137-0x0000000005870000-0x0000000005BC4000-memory.dmp

      Filesize

      3.3MB

    • memory/3936-152-0x00000000057E0000-0x00000000057F1000-memory.dmp

      Filesize

      68KB

    • memory/3936-153-0x0000000005830000-0x0000000005844000-memory.dmp

      Filesize

      80KB

    • memory/3944-113-0x0000000070560000-0x00000000708B4000-memory.dmp

      Filesize

      3.3MB

    • memory/3944-112-0x00000000703E0000-0x000000007042C000-memory.dmp

      Filesize

      304KB

    • memory/3944-110-0x0000000005D20000-0x0000000006074000-memory.dmp

      Filesize

      3.3MB

    • memory/4252-191-0x00000000061D0000-0x0000000006524000-memory.dmp

      Filesize

      3.3MB

    • memory/4252-193-0x0000000070260000-0x00000000702AC000-memory.dmp

      Filesize

      304KB

    • memory/4252-194-0x00000000703E0000-0x0000000070734000-memory.dmp

      Filesize

      3.3MB

    • memory/4384-26-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-37-0x0000000007530000-0x000000000754E000-memory.dmp

      Filesize

      120KB

    • memory/4384-1-0x0000000004940000-0x0000000004976000-memory.dmp

      Filesize

      216KB

    • memory/4384-3-0x0000000004FB0000-0x00000000055D8000-memory.dmp

      Filesize

      6.2MB

    • memory/4384-2-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-4-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-5-0x0000000004F10000-0x0000000004F32000-memory.dmp

      Filesize

      136KB

    • memory/4384-6-0x00000000055E0000-0x0000000005646000-memory.dmp

      Filesize

      408KB

    • memory/4384-50-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-47-0x00000000076F0000-0x00000000076F8000-memory.dmp

      Filesize

      32KB

    • memory/4384-46-0x0000000007700000-0x000000000771A000-memory.dmp

      Filesize

      104KB

    • memory/4384-45-0x00000000076B0000-0x00000000076C4000-memory.dmp

      Filesize

      80KB

    • memory/4384-44-0x0000000007690000-0x000000000769E000-memory.dmp

      Filesize

      56KB

    • memory/4384-43-0x0000000007650000-0x0000000007661000-memory.dmp

      Filesize

      68KB

    • memory/4384-42-0x0000000007750000-0x00000000077E6000-memory.dmp

      Filesize

      600KB

    • memory/4384-41-0x0000000007640000-0x000000000764A000-memory.dmp

      Filesize

      40KB

    • memory/4384-40-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-39-0x0000000074440000-0x0000000074BF0000-memory.dmp

      Filesize

      7.7MB

    • memory/4384-38-0x0000000007550000-0x00000000075F3000-memory.dmp

      Filesize

      652KB

    • memory/4384-7-0x0000000005700000-0x0000000005766000-memory.dmp

      Filesize

      408KB

    • memory/4384-24-0x00000000074F0000-0x0000000007522000-memory.dmp

      Filesize

      200KB

    • memory/4384-27-0x00000000709E0000-0x0000000070D34000-memory.dmp

      Filesize

      3.3MB

    • memory/4384-0-0x000000007444E000-0x000000007444F000-memory.dmp

      Filesize

      4KB

    • memory/4384-25-0x00000000702E0000-0x000000007032C000-memory.dmp

      Filesize

      304KB

    • memory/4384-22-0x00000000079B0000-0x000000000802A000-memory.dmp

      Filesize

      6.5MB

    • memory/4384-23-0x0000000007330000-0x000000000734A000-memory.dmp

      Filesize

      104KB

    • memory/4384-21-0x00000000072B0000-0x0000000007326000-memory.dmp

      Filesize

      472KB

    • memory/4384-20-0x0000000006390000-0x00000000063D4000-memory.dmp

      Filesize

      272KB

    • memory/4384-19-0x0000000005FB0000-0x0000000005FFC000-memory.dmp

      Filesize

      304KB

    • memory/4384-18-0x0000000005F60000-0x0000000005F7E000-memory.dmp

      Filesize

      120KB

    • memory/4384-17-0x00000000057B0000-0x0000000005B04000-memory.dmp

      Filesize

      3.3MB

    • memory/5728-51-0x0000000005F90000-0x00000000062E4000-memory.dmp

      Filesize

      3.3MB

    • memory/5728-75-0x0000000007B50000-0x0000000007B64000-memory.dmp

      Filesize

      80KB

    • memory/5728-74-0x0000000007B00000-0x0000000007B11000-memory.dmp

      Filesize

      68KB

    • memory/5728-62-0x00000000703E0000-0x000000007042C000-memory.dmp

      Filesize

      304KB

    • memory/5728-73-0x00000000077D0000-0x0000000007873000-memory.dmp

      Filesize

      652KB

    • memory/5728-63-0x0000000070B80000-0x0000000070ED4000-memory.dmp

      Filesize

      3.3MB

    • memory/5728-61-0x00000000067B0000-0x00000000067FC000-memory.dmp

      Filesize

      304KB