Analysis

  • max time kernel
    150s
  • max time network
    141s
  • 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, 18:07

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:4464
    • 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:5016
    • 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:2332
      • 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:4636
      • 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:1460
        • 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:2540
      • 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:3328
      • 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:3960
      • 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:4160
        • 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:5100
        • 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:372
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5084
          • 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:700
          • 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:3024
          • 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:4344
          • 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:2120

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h0bc1udk.0mi.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

      d8ea8f7ed070d170182b4765e3f386a8

      SHA1

      aa9bcbd5e9615623a1c8ac258879c1505c12c549

      SHA256

      92685e6370f3e904c9d4bfee3029212f60e289b87fad09d91b5f12c76fa21de0

      SHA512

      21f7b32e286a6f97fca7bd1c68489e5d41e0934ce1f8508e73fde19873bde17c5e4a58475501e037dd00c9f9cf7693250ce0c13c6ed26dd2a261a6271e0f7ff1

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

      Filesize

      19KB

      MD5

      900bf1d02615f46c748177722ea7fa83

      SHA1

      dd0a011aa5554cd596725823a47753003cd49429

      SHA256

      0873333a8b9592d3d81e66be9e81954d38aa2db5d85c1df248c1ccd2aab8bec2

      SHA512

      29b16c00dc0259d12e1874c956de263bbcd06c3964f067e5cbf42c84f876e31852ce701067da5aaffbcc28ac0cf80c19f97e6e3c633c10b0eccca22853a8e06b

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

      Filesize

      19KB

      MD5

      a8fc055943af41f48826b7b0df58ab71

      SHA1

      86e939855cf48add064fd10742815bf3bc06658e

      SHA256

      b8e71859699b525bef4fc5c81d93fe809cf06549ced10910505e661dd01ae4d8

      SHA512

      5146ca6edd08343228fe47f53efbe2e14013863f2b51859fe7eae5859333d9c26c6a630b6700b9a2c774b729b4c01620094a2f38c5b5dfa0a551e6c5caf92eae

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

      Filesize

      19KB

      MD5

      0bbb1369d94722ce98f18ed962d7911b

      SHA1

      117e59717f24ae70c22a1df664598b77917154cc

      SHA256

      ce75dcdc21e666231d7a21ad944ee99528042223c124f25adbf36be1d67e5763

      SHA512

      e448bc8baf3f84a2264880ed772610e93d9b53a859285699baf6c2e2b42ba59c6fda80fae53a39cc0d2e949a516ea07ce4844c127558de8adb15bee9da4a5186

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

      Filesize

      19KB

      MD5

      206709ccbec9a0fba4488a1401542655

      SHA1

      b545b4800b8c7cbf5b6b809dfaafa977614c6de4

      SHA256

      614e19d1476c5b58718856e530158376cd2ea9b7382250b9ede2fc15eef4b39f

      SHA512

      90c245f341c20f10b79c5588679428f77175b31fb14c278ed057ee11d017bc1410e6e40eea83c2bfd96c4fdc9b71b6719579a111da2fa7f060fe565c3757a205

    • C:\Windows\rss\csrss.exe

      Filesize

      9.1MB

      MD5

      afac5e4b4d8cb6f10353da7e8fa83fa1

      SHA1

      ca92e8ab80c94ad5ad4530863adbb1e494bc817f

      SHA256

      65df23849c6a6722b36b8d3bd101c9b58ec82ab0f91ef09524a7b9c91fe76078

      SHA512

      91540b869195273fb82eb2a3f9b66d3eb868448c2db50e7c453ad6bb77c4293934fe1a05dd1850853a5e357bb49a7dd5b213ccb92718a2009cdda775e2de5535

    • memory/700-163-0x0000000006B30000-0x0000000006B7C000-memory.dmp

      Filesize

      304KB

    • memory/700-164-0x0000000070660000-0x00000000706AC000-memory.dmp

      Filesize

      304KB

    • memory/700-165-0x0000000070DF0000-0x0000000071144000-memory.dmp

      Filesize

      3.3MB

    • memory/700-152-0x00000000062A0000-0x00000000065F4000-memory.dmp

      Filesize

      3.3MB

    • memory/700-175-0x0000000007BC0000-0x0000000007C63000-memory.dmp

      Filesize

      652KB

    • memory/700-176-0x0000000007D80000-0x0000000007D91000-memory.dmp

      Filesize

      68KB

    • memory/700-177-0x0000000006750000-0x0000000006764000-memory.dmp

      Filesize

      80KB

    • memory/3024-190-0x0000000070DF0000-0x0000000071144000-memory.dmp

      Filesize

      3.3MB

    • memory/3024-189-0x0000000070660000-0x00000000706AC000-memory.dmp

      Filesize

      304KB

    • memory/3328-87-0x00000000707E0000-0x000000007082C000-memory.dmp

      Filesize

      304KB

    • memory/3328-88-0x0000000070F80000-0x00000000712D4000-memory.dmp

      Filesize

      3.3MB

    • memory/3960-109-0x00000000707E0000-0x000000007082C000-memory.dmp

      Filesize

      304KB

    • memory/3960-110-0x0000000070F80000-0x00000000712D4000-memory.dmp

      Filesize

      3.3MB

    • memory/4636-58-0x0000000005740000-0x0000000005A94000-memory.dmp

      Filesize

      3.3MB

    • memory/4636-73-0x00000000072E0000-0x00000000072F4000-memory.dmp

      Filesize

      80KB

    • memory/4636-72-0x0000000007290000-0x00000000072A1000-memory.dmp

      Filesize

      68KB

    • memory/4636-71-0x0000000006FD0000-0x0000000007073000-memory.dmp

      Filesize

      652KB

    • memory/4636-61-0x0000000070F80000-0x00000000712D4000-memory.dmp

      Filesize

      3.3MB

    • memory/4636-60-0x00000000707E0000-0x000000007082C000-memory.dmp

      Filesize

      304KB

    • memory/4636-59-0x0000000005DD0000-0x0000000005E1C000-memory.dmp

      Filesize

      304KB

    • memory/5016-36-0x0000000007E60000-0x0000000007E7E000-memory.dmp

      Filesize

      120KB

    • memory/5016-22-0x0000000007C80000-0x0000000007C9A000-memory.dmp

      Filesize

      104KB

    • memory/5016-45-0x0000000008020000-0x0000000008028000-memory.dmp

      Filesize

      32KB

    • memory/5016-44-0x0000000008030000-0x000000000804A000-memory.dmp

      Filesize

      104KB

    • memory/5016-43-0x0000000007FF0000-0x0000000008004000-memory.dmp

      Filesize

      80KB

    • memory/5016-42-0x0000000007FD0000-0x0000000007FDE000-memory.dmp

      Filesize

      56KB

    • memory/5016-41-0x0000000007F90000-0x0000000007FA1000-memory.dmp

      Filesize

      68KB

    • memory/5016-40-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-39-0x0000000008090000-0x0000000008126000-memory.dmp

      Filesize

      600KB

    • memory/5016-38-0x0000000007F70000-0x0000000007F7A000-memory.dmp

      Filesize

      40KB

    • memory/5016-23-0x0000000007E20000-0x0000000007E52000-memory.dmp

      Filesize

      200KB

    • memory/5016-37-0x0000000007E80000-0x0000000007F23000-memory.dmp

      Filesize

      652KB

    • memory/5016-24-0x00000000706E0000-0x000000007072C000-memory.dmp

      Filesize

      304KB

    • memory/5016-25-0x0000000070E80000-0x00000000711D4000-memory.dmp

      Filesize

      3.3MB

    • memory/5016-0-0x000000007484E000-0x000000007484F000-memory.dmp

      Filesize

      4KB

    • memory/5016-35-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-1-0x0000000003280000-0x00000000032B6000-memory.dmp

      Filesize

      216KB

    • memory/5016-48-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-3-0x0000000005BF0000-0x0000000006218000-memory.dmp

      Filesize

      6.2MB

    • memory/5016-2-0x0000000074840000-0x0000000074FF0000-memory.dmp

      Filesize

      7.7MB

    • memory/5016-4-0x0000000005960000-0x0000000005982000-memory.dmp

      Filesize

      136KB

    • memory/5016-5-0x0000000005A80000-0x0000000005AE6000-memory.dmp

      Filesize

      408KB

    • memory/5016-6-0x0000000005B60000-0x0000000005BC6000-memory.dmp

      Filesize

      408KB

    • memory/5016-12-0x0000000006220000-0x0000000006574000-memory.dmp

      Filesize

      3.3MB

    • memory/5016-21-0x00000000082E0000-0x000000000895A000-memory.dmp

      Filesize

      6.5MB

    • memory/5016-20-0x0000000007BE0000-0x0000000007C56000-memory.dmp

      Filesize

      472KB

    • memory/5016-19-0x0000000006CC0000-0x0000000006D04000-memory.dmp

      Filesize

      272KB

    • memory/5016-18-0x00000000068E0000-0x000000000692C000-memory.dmp

      Filesize

      304KB

    • memory/5016-17-0x00000000068B0000-0x00000000068CE000-memory.dmp

      Filesize

      120KB

    • memory/5100-150-0x0000000005CC0000-0x0000000005CD4000-memory.dmp

      Filesize

      80KB

    • memory/5100-149-0x0000000007960000-0x0000000007971000-memory.dmp

      Filesize

      68KB

    • memory/5100-148-0x0000000007650000-0x00000000076F3000-memory.dmp

      Filesize

      652KB

    • memory/5100-137-0x0000000070740000-0x000000007078C000-memory.dmp

      Filesize

      304KB

    • memory/5100-138-0x0000000070EC0000-0x0000000071214000-memory.dmp

      Filesize

      3.3MB

    • memory/5100-136-0x00000000069C0000-0x0000000006A0C000-memory.dmp

      Filesize

      304KB

    • memory/5100-134-0x0000000005DC0000-0x0000000006114000-memory.dmp

      Filesize

      3.3MB