Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/03/2025, 20:01

General

  • Target

    2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe

  • Size

    9.1MB

  • MD5

    afac5e4b4d8cb6f10353da7e8fa83fa1

  • SHA1

    ca92e8ab80c94ad5ad4530863adbb1e494bc817f

  • SHA256

    65df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078

  • SHA512

    91540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535

  • SSDEEP

    98304:GHxMZDJ1TRpxYVX9u2IazANfAhZytTD5iqk4:sxEvYjVzANIhwNP

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\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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:4144
    • 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:5424
    • C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_cobalt-strike_frostygoop_gcleaner_poet-rat_sliver_snatch.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-22_afac5e4b4d8cb6f10353da7e8fa83fa1_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:540
      • 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:4744
      • 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:1716
        • 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:752
      • 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:1520
      • 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:2392
      • 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:968
        • 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:6068
        • 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:2136
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5744
          • 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:2876
          • 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:4240
          • 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:3276
          • 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:2436

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_y4mno5x3.rsl.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

      a90a1e127af62be577f409757adf2542

      SHA1

      81795d2c64cff3b18b976f6118cb37833ab7c5ef

      SHA256

      4f00d34fe08e8df449a2564e18a0d8c89e8fc13f669ba80db858f561da468061

      SHA512

      d812c93ead3ffa1d5974f7467903d58b5afff3e26c15ae4838d4fed12d4d971c2ed1b21eae64cbb663bcbedd4a4ec5c2cea8c5282e7a941c96090ff60626eca3

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

      Filesize

      19KB

      MD5

      48d493d1d8ee6ed6c43577e9b7a520b1

      SHA1

      5e0196d13e63f21f1ded39e05d5fca0168c06245

      SHA256

      dee5fe6d4a385a92790a7817ca26ce5ff33a009e8b645c4a9f23788caaac6201

      SHA512

      fb57d83d8db8f0f22badcb364437bde4bc812488857f76063b4591645ecea5533de2b6e24831102696ab9e8724e65aaa63aa8ec83c2fac899efb5306920f882c

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

      Filesize

      19KB

      MD5

      d53e7829bdf34784e2254eb5afa2822a

      SHA1

      5666c2787d25765ee7a9dbd7262fdb50d57907f6

      SHA256

      a217e192cc93576105a0676677cc537f0b5647bc54b2e981bd44f1c652c8e612

      SHA512

      61aca4647eed9f51701bd7362f2986d7e5e82aeabb877e16d216483e4d0ba8f1a008aa7734ad799065702e8a60f148094f0b4c4119b6dca62f9a844c2c5f69c9

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

      Filesize

      19KB

      MD5

      3f5badc8900b682ce23d07220a67b217

      SHA1

      a739d866b3c6cababa888f486f14fd98f7c21a00

      SHA256

      a74cd9e77170bef02770243fd8cfe3d3afa498dc1299ee022b17785ee2a8c1f7

      SHA512

      cf7fd37004951957f43f1bb69c7ceaae3b7b416045215f3ff75e413f426d6658b2c9e76b5d61548406a507a569cc30cf6adab35ae630f94906f7264e32e933da

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

      Filesize

      19KB

      MD5

      107b6a664f73b64f5a9142a52a42013a

      SHA1

      c05218b2509ceaf635a733d6156a0d076851aa4d

      SHA256

      81414239967efa414fceb9c243402881c4d1733394317aeebf145938551ebf11

      SHA512

      98b7b4fd65c39f861df90c277cd494ff5bfc5b9ce3e698c172ff8478dc2bbe27125076c610add97f4a8c1ddbfc4eac3da0366b9324515fdbc883bb24b2ad6f69

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      afac5e4b4d8cb6f10353da7e8fa83fa1

      SHA1

      ca92e8ab80c94ad5ad4530863adbb1e494bc817f

      SHA256

      65df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078

      SHA512

      91540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535

    • memory/1520-87-0x0000000005680000-0x00000000059D4000-memory.dmp

      Filesize

      3.3MB

    • memory/1520-90-0x0000000070B30000-0x0000000070E84000-memory.dmp

      Filesize

      3.3MB

    • memory/1520-89-0x00000000709B0000-0x00000000709FC000-memory.dmp

      Filesize

      304KB

    • memory/2392-112-0x0000000070B30000-0x0000000070E84000-memory.dmp

      Filesize

      3.3MB

    • memory/2392-111-0x00000000709B0000-0x00000000709FC000-memory.dmp

      Filesize

      304KB

    • memory/2876-178-0x00000000059E0000-0x00000000059F1000-memory.dmp

      Filesize

      68KB

    • memory/2876-179-0x0000000005A20000-0x0000000005A34000-memory.dmp

      Filesize

      80KB

    • memory/2876-165-0x00000000064B0000-0x00000000064FC000-memory.dmp

      Filesize

      304KB

    • memory/2876-167-0x00000000709B0000-0x0000000070D04000-memory.dmp

      Filesize

      3.3MB

    • memory/2876-166-0x0000000070830000-0x000000007087C000-memory.dmp

      Filesize

      304KB

    • memory/2876-177-0x00000000071D0000-0x0000000007273000-memory.dmp

      Filesize

      652KB

    • memory/2876-163-0x0000000005AF0000-0x0000000005E44000-memory.dmp

      Filesize

      3.3MB

    • memory/4240-193-0x00000000709D0000-0x0000000070D24000-memory.dmp

      Filesize

      3.3MB

    • memory/4240-190-0x0000000005CB0000-0x0000000006004000-memory.dmp

      Filesize

      3.3MB

    • memory/4240-192-0x0000000070830000-0x000000007087C000-memory.dmp

      Filesize

      304KB

    • memory/4744-50-0x00000000055C0000-0x0000000005914000-memory.dmp

      Filesize

      3.3MB

    • memory/4744-74-0x0000000007180000-0x0000000007194000-memory.dmp

      Filesize

      80KB

    • memory/4744-73-0x0000000007130000-0x0000000007141000-memory.dmp

      Filesize

      68KB

    • memory/4744-72-0x0000000006E00000-0x0000000006EA3000-memory.dmp

      Filesize

      652KB

    • memory/4744-61-0x00000000709B0000-0x00000000709FC000-memory.dmp

      Filesize

      304KB

    • memory/4744-62-0x0000000071150000-0x00000000714A4000-memory.dmp

      Filesize

      3.3MB

    • memory/4744-60-0x0000000006120000-0x000000000616C000-memory.dmp

      Filesize

      304KB

    • memory/5424-25-0x00000000708B0000-0x00000000708FC000-memory.dmp

      Filesize

      304KB

    • memory/5424-18-0x0000000005CE0000-0x0000000005CFE000-memory.dmp

      Filesize

      120KB

    • memory/5424-46-0x0000000007440000-0x0000000007448000-memory.dmp

      Filesize

      32KB

    • memory/5424-45-0x0000000007450000-0x000000000746A000-memory.dmp

      Filesize

      104KB

    • memory/5424-44-0x0000000007410000-0x0000000007424000-memory.dmp

      Filesize

      80KB

    • memory/5424-43-0x00000000073F0000-0x00000000073FE000-memory.dmp

      Filesize

      56KB

    • memory/5424-42-0x00000000073B0000-0x00000000073C1000-memory.dmp

      Filesize

      68KB

    • memory/5424-41-0x00000000074B0000-0x0000000007546000-memory.dmp

      Filesize

      600KB

    • memory/5424-40-0x00000000073A0000-0x00000000073AA000-memory.dmp

      Filesize

      40KB

    • memory/5424-39-0x00000000072B0000-0x0000000007353000-memory.dmp

      Filesize

      652KB

    • memory/5424-38-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5424-37-0x0000000007290000-0x00000000072AE000-memory.dmp

      Filesize

      120KB

    • memory/5424-27-0x0000000070CA0000-0x0000000070FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/5424-26-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5424-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

      Filesize

      4KB

    • memory/5424-24-0x0000000007250000-0x0000000007282000-memory.dmp

      Filesize

      200KB

    • memory/5424-1-0x0000000004780000-0x00000000047B6000-memory.dmp

      Filesize

      216KB

    • memory/5424-23-0x0000000007090000-0x00000000070AA000-memory.dmp

      Filesize

      104KB

    • memory/5424-2-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5424-3-0x0000000004E50000-0x0000000005478000-memory.dmp

      Filesize

      6.2MB

    • memory/5424-4-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5424-5-0x0000000004D10000-0x0000000004D32000-memory.dmp

      Filesize

      136KB

    • memory/5424-6-0x0000000004DB0000-0x0000000004E16000-memory.dmp

      Filesize

      408KB

    • memory/5424-7-0x00000000055B0000-0x0000000005616000-memory.dmp

      Filesize

      408KB

    • memory/5424-22-0x00000000076F0000-0x0000000007D6A000-memory.dmp

      Filesize

      6.5MB

    • memory/5424-21-0x0000000006DF0000-0x0000000006E66000-memory.dmp

      Filesize

      472KB

    • memory/5424-20-0x00000000060E0000-0x0000000006124000-memory.dmp

      Filesize

      272KB

    • memory/5424-19-0x0000000005D10000-0x0000000005D5C000-memory.dmp

      Filesize

      304KB

    • memory/5424-49-0x0000000074A10000-0x00000000751C0000-memory.dmp

      Filesize

      7.7MB

    • memory/5424-13-0x0000000005720000-0x0000000005A74000-memory.dmp

      Filesize

      3.3MB

    • memory/6068-152-0x0000000005940000-0x0000000005954000-memory.dmp

      Filesize

      80KB

    • memory/6068-151-0x0000000005900000-0x0000000005911000-memory.dmp

      Filesize

      68KB

    • memory/6068-150-0x0000000006D90000-0x0000000006E33000-memory.dmp

      Filesize

      652KB

    • memory/6068-139-0x0000000070910000-0x000000007095C000-memory.dmp

      Filesize

      304KB

    • memory/6068-140-0x00000000710B0000-0x0000000071404000-memory.dmp

      Filesize

      3.3MB

    • memory/6068-138-0x0000000005EE0000-0x0000000005F2C000-memory.dmp

      Filesize

      304KB

    • memory/6068-136-0x00000000054A0000-0x00000000057F4000-memory.dmp

      Filesize

      3.3MB