Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 03:35

General

  • Target

    83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe

  • Size

    4.1MB

  • MD5

    27d01600bd3dc1ec2f1eb16bea1db760

  • SHA1

    924553c3d344d884e6f3f5f438be26976178083e

  • SHA256

    83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5

  • SHA512

    348bf2924303d7b9c98e73ccf4ea3af9dfd0a9b531315a4910f4976aa345ce07f334b6e9f9a695e76e679c547119de766638d38dde85eaffded0741d51354d2d

  • SSDEEP

    98304:AcO3d23DP4WvcTQUVFyLidGODnX7vlp0fAiBu1UOo5GU75c1WMsxQ:AcO3d2wQ4Q8FyLwnXJ+AxvtU75c1js+

Malware Config

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba payload 19 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 64 IoCs
  • 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\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe
    "C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1592
    • C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe
      "C:\Users\Admin\AppData\Local\Temp\83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5048
      • 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:2884
        • 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
          PID:1492
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5080
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3332
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4016
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2912
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Creates scheduled task(s)
          PID:2376
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2848
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:988
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2972
          • 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:2648
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
            4⤵
            • Creates scheduled task(s)
            PID:2060

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nbv4pziu.uy2.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

      3209879086f8cb137e67ec794de82adf

      SHA1

      f44434696a88c44a06162faa1b69331bde383a54

      SHA256

      adbe77b0c1a98b823407c2331d2d311dcde6726dbbc8724772c6d570f09a4991

      SHA512

      a928be18c8b3c50b26aa5a3d2a311aaaf2cbad40f03299952930c128754b3d4425f08810a9f417ee6b91e2f640d7f1b761e7fae2e5aa9fe1264f1d633466de8f

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

      Filesize

      19KB

      MD5

      472cf810e0f1e2c6cffe5f54dea698c1

      SHA1

      3d53fc89a3d0c31986370779b2f781d4b87fa2e3

      SHA256

      2e3dff01757b82cc9fa83ae3303f6b52c50a0a156a15e0edd309039b83a32990

      SHA512

      d2d3681eca4fdd9e498559ea104183b4d3dfae2211973857bfcb22e1aa227a7de1bb30c03a35fa15d0ab474bd90c55e9080d6c3796b13080ce4a4de3edf3e634

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

      Filesize

      19KB

      MD5

      28ee97dfb6bd026fec603f6c79e45171

      SHA1

      974c2b79954c986248b0f367020cbebbea09ae32

      SHA256

      604b99b083d29ec54d317efeb921750fae56bf2a35c500ba172322e1b546b32e

      SHA512

      4e3eaa4eb38da823e2c18ff15ee6e60ff7264450f81ffb858c4bf05cc724c5d664f991b3dcd0589f3493a3115b1c95befd93a711eee092b2fa067635c90e0537

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

      Filesize

      19KB

      MD5

      fb5b7e79509c54cebd8324e561fb0c2f

      SHA1

      5630b4a3d611134cea44afbe16a4dc0da8479402

      SHA256

      98e0c59460c6e4115aad136e3d1c7600ab7139f00830817a000db744ad516aad

      SHA512

      276aaaa5cf3fab187e3cca2537d41bcb6001378822783ea3b6bd0680dd6acc1462b6881543ea06f8c915053f96400bf2a0584ef29906766e6fcadc5c0a6518af

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

      Filesize

      19KB

      MD5

      32a7492ed1ebf0242c109ba30ae3702d

      SHA1

      3443408a6378393ff8b25d8bde88621006488c22

      SHA256

      d8860558cc1ee2d62ee7ba57c1cee1275787c6a8e93e8250dbeca1c472eaa82e

      SHA512

      83b9f52f1cca2cf541e0809f0ee42282060ca6aaefee6a5311067828ce7f994063f56374239d39b3a739e756bc940f122305f7c84f408cc20ad8517f3f883d6a

    • C:\Windows\rss\csrss.exe

      Filesize

      4.1MB

      MD5

      27d01600bd3dc1ec2f1eb16bea1db760

      SHA1

      924553c3d344d884e6f3f5f438be26976178083e

      SHA256

      83d28960ce93489e10f811845e5ed84eb04cf4b785107e177bd474a471d45ce5

      SHA512

      348bf2924303d7b9c98e73ccf4ea3af9dfd0a9b531315a4910f4976aa345ce07f334b6e9f9a695e76e679c547119de766638d38dde85eaffded0741d51354d2d

    • memory/988-184-0x0000000007B30000-0x0000000007BD3000-memory.dmp

      Filesize

      652KB

    • memory/988-174-0x00000000713F0000-0x0000000071744000-memory.dmp

      Filesize

      3.3MB

    • memory/988-168-0x0000000006230000-0x0000000006584000-memory.dmp

      Filesize

      3.3MB

    • memory/988-170-0x0000000006910000-0x000000000695C000-memory.dmp

      Filesize

      304KB

    • memory/988-186-0x0000000006700000-0x0000000006714000-memory.dmp

      Filesize

      80KB

    • memory/988-185-0x0000000007E90000-0x0000000007EA1000-memory.dmp

      Filesize

      68KB

    • memory/988-173-0x0000000070C60000-0x0000000070CAC000-memory.dmp

      Filesize

      304KB

    • memory/1036-79-0x00000000047E0000-0x0000000004BE8000-memory.dmp

      Filesize

      4.0MB

    • memory/1036-1-0x00000000047E0000-0x0000000004BE8000-memory.dmp

      Filesize

      4.0MB

    • memory/1036-172-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1036-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

      Filesize

      9.1MB

    • memory/1036-117-0x0000000004BF0000-0x00000000054DB000-memory.dmp

      Filesize

      8.9MB

    • memory/1036-2-0x0000000004BF0000-0x00000000054DB000-memory.dmp

      Filesize

      8.9MB

    • memory/1036-116-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/1592-46-0x0000000007F90000-0x0000000008026000-memory.dmp

      Filesize

      600KB

    • memory/1592-41-0x0000000007DC0000-0x0000000007DDE000-memory.dmp

      Filesize

      120KB

    • memory/1592-43-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-44-0x0000000007ED0000-0x0000000007EDA000-memory.dmp

      Filesize

      40KB

    • memory/1592-45-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-9-0x0000000006110000-0x0000000006176000-memory.dmp

      Filesize

      408KB

    • memory/1592-47-0x0000000007EF0000-0x0000000007F01000-memory.dmp

      Filesize

      68KB

    • memory/1592-48-0x0000000007F30000-0x0000000007F3E000-memory.dmp

      Filesize

      56KB

    • memory/1592-49-0x0000000007F40000-0x0000000007F54000-memory.dmp

      Filesize

      80KB

    • memory/1592-50-0x0000000008030000-0x000000000804A000-memory.dmp

      Filesize

      104KB

    • memory/1592-51-0x0000000007F80000-0x0000000007F88000-memory.dmp

      Filesize

      32KB

    • memory/1592-54-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-7-0x0000000005A30000-0x0000000006058000-memory.dmp

      Filesize

      6.2MB

    • memory/1592-11-0x0000000006180000-0x00000000061E6000-memory.dmp

      Filesize

      408KB

    • memory/1592-21-0x00000000062F0000-0x0000000006644000-memory.dmp

      Filesize

      3.3MB

    • memory/1592-22-0x00000000067F0000-0x000000000680E000-memory.dmp

      Filesize

      120KB

    • memory/1592-23-0x00000000068B0000-0x00000000068FC000-memory.dmp

      Filesize

      304KB

    • memory/1592-30-0x0000000070EC0000-0x0000000071214000-memory.dmp

      Filesize

      3.3MB

    • memory/1592-10-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-8-0x0000000005940000-0x0000000005962000-memory.dmp

      Filesize

      136KB

    • memory/1592-24-0x0000000006D50000-0x0000000006D94000-memory.dmp

      Filesize

      272KB

    • memory/1592-25-0x0000000007B40000-0x0000000007BB6000-memory.dmp

      Filesize

      472KB

    • memory/1592-40-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-26-0x0000000008240000-0x00000000088BA000-memory.dmp

      Filesize

      6.5MB

    • memory/1592-4-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

      Filesize

      4KB

    • memory/1592-42-0x0000000007DE0000-0x0000000007E83000-memory.dmp

      Filesize

      652KB

    • memory/1592-27-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

      Filesize

      104KB

    • memory/1592-28-0x0000000007D80000-0x0000000007DB2000-memory.dmp

      Filesize

      200KB

    • memory/1592-6-0x0000000074EA0000-0x0000000075650000-memory.dmp

      Filesize

      7.7MB

    • memory/1592-29-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/1592-5-0x0000000003260000-0x0000000003296000-memory.dmp

      Filesize

      216KB

    • memory/2036-133-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/2912-145-0x0000000005790000-0x0000000005AE4000-memory.dmp

      Filesize

      3.3MB

    • memory/2912-148-0x0000000071310000-0x0000000071664000-memory.dmp

      Filesize

      3.3MB

    • memory/2912-147-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/2972-200-0x0000000070DE0000-0x0000000071134000-memory.dmp

      Filesize

      3.3MB

    • memory/2972-199-0x0000000070C60000-0x0000000070CAC000-memory.dmp

      Filesize

      304KB

    • memory/2972-197-0x0000000005CA0000-0x0000000005FF4000-memory.dmp

      Filesize

      3.3MB

    • memory/3332-119-0x00000000714C0000-0x0000000071814000-memory.dmp

      Filesize

      3.3MB

    • memory/3332-118-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/3332-105-0x00000000060E0000-0x0000000006434000-memory.dmp

      Filesize

      3.3MB

    • memory/4016-232-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-236-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-238-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-228-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-240-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-234-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-211-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-230-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-218-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-220-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-222-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-224-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/4016-226-0x0000000000400000-0x0000000002B08000-memory.dmp

      Filesize

      39.0MB

    • memory/5048-77-0x0000000007980000-0x0000000007991000-memory.dmp

      Filesize

      68KB

    • memory/5048-65-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/5048-76-0x0000000007660000-0x0000000007703000-memory.dmp

      Filesize

      652KB

    • memory/5048-66-0x0000000070EC0000-0x0000000071214000-memory.dmp

      Filesize

      3.3MB

    • memory/5048-78-0x00000000079D0000-0x00000000079E4000-memory.dmp

      Filesize

      80KB

    • memory/5080-93-0x0000000070D40000-0x0000000070D8C000-memory.dmp

      Filesize

      304KB

    • memory/5080-94-0x0000000070EC0000-0x0000000071214000-memory.dmp

      Filesize

      3.3MB