Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2024, 17:58

General

  • Target

    3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461.exe

  • Size

    4.1MB

  • MD5

    4c305ab8ba5a57c6d884690f88e095fc

  • SHA1

    fb364c0975f593ab5e9b36bd9f405c9a52fe60b4

  • SHA256

    3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461

  • SHA512

    6d21ac3e53414b69a08bc3d31b98af5a6a6adcf20f368960b88285bc068b52f418f8ceb6f70404797f110ff74f1c6db8f5d69515e782369aa5d73d74d46a44ec

  • SSDEEP

    98304:GmUnerS5zFAwe9KTsAr0OuRiq2zSe1g61PvWIVkllA:4nC9KAfOq2vzHbVkO

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 18 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs
  • 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
  • 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\3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461.exe
    "C:\Users\Admin\AppData\Local\Temp\3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4444
    • C:\Users\Admin\AppData\Local\Temp\3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461.exe
      "C:\Users\Admin\AppData\Local\Temp\3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461.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:1436
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4764
      • 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:2932
        • 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:5068
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4380
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:864
      • 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:5048
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2176
        • 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:5100
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1820
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4904
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2332
          • 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:2408
          • 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:2196

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5l5t3wnp.tws.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

            92821f31ec3c0124cb6d4434da78c6dd

            SHA1

            449b9a62deb7ea578b00920cfb5b697ad4b21d7b

            SHA256

            ddcafef2850976bf6af155021a85f9cc18f9c23de64d605cc30c275d024f4fda

            SHA512

            b768b9e152a3dffb1926ba0670b209e0372656a713960458123c8e29e6dc509ef3670cc6cc6ba2d3bce95703e791b965d0da0d7ff614717cfc0965dc800b1b7f

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

            Filesize

            19KB

            MD5

            896c0fd7c88f1312ee96aa8e01f20e90

            SHA1

            de8c59d0fb681a3069b534a2bbdcafff5001f3a5

            SHA256

            5ba6b46ea97e8abcdd813cd30e625f506e6e3b07a36aa9b380ba5a2085848d6f

            SHA512

            a3d8aa9e208c8e47efc2fda739bb67829a0a08d3dbf1f0e2a29288aafdcceb9d9bb416cbf35f475562745a8ba0e19f111b7d6427a37754182013ec7731426b0d

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

            Filesize

            19KB

            MD5

            d13f5ef80ef9baf7d6802890531179c1

            SHA1

            8829c23dc4a55589b84a143dbc5d2ec7d29b70c9

            SHA256

            543a682342cf73a4fc87b04c10086476378ae58d739adf87dbc21da9ff497ac8

            SHA512

            9cae19840f91637cafead3d7e9fe4a50f20b11040e51b9da49d49309931bc9f988cd6032f5bbb8aad1e5297f2cc36373a23cbca9c4093f8a38be2ca616bfad85

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

            Filesize

            19KB

            MD5

            169ba98790d59e2f92ad17e21961d912

            SHA1

            1a41c0f82b424439ade13c612d6ad5b2f2fdeff2

            SHA256

            94253032f7276fb92f775668ab3e6cc006f7c1f87ac68ca220a60aeee3daf933

            SHA512

            078bff82446222eec8b785744ef00c45138f3026ea2e8ce9248954b4e2628f442a7f4b6793f611081334034b2620826ce76aeca9e9594f62377d5a2ac1099b65

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

            Filesize

            19KB

            MD5

            e880694eda962979d8c3ef4eb703ff7e

            SHA1

            4fa700b2996371a86d8a799f4077ecee215880cd

            SHA256

            e9cb25c37b1b2a69a5ed4a70b32b5aef2785397bdc1915d4a79cc42091ab5fbe

            SHA512

            2a58c7fad1a8c9a9d070efc3bda4afd9ab6fb90da1344c797ea532d4dd321a56e486db88f4e6abb851009c919ae9de3e74638858ca172dd776dba6a8857dc25d

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            4c305ab8ba5a57c6d884690f88e095fc

            SHA1

            fb364c0975f593ab5e9b36bd9f405c9a52fe60b4

            SHA256

            3610f767667500c6a218f78ca2c5fd780294340286e4307de12147a039071461

            SHA512

            6d21ac3e53414b69a08bc3d31b98af5a6a6adcf20f368960b88285bc068b52f418f8ceb6f70404797f110ff74f1c6db8f5d69515e782369aa5d73d74d46a44ec

          • memory/864-121-0x0000000071190000-0x00000000714E4000-memory.dmp

            Filesize

            3.3MB

          • memory/864-120-0x00000000709F0000-0x0000000070A3C000-memory.dmp

            Filesize

            304KB

          • memory/1436-149-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/2176-150-0x0000000070950000-0x000000007099C000-memory.dmp

            Filesize

            304KB

          • memory/2176-146-0x0000000006230000-0x0000000006584000-memory.dmp

            Filesize

            3.3MB

          • memory/2176-151-0x0000000070AD0000-0x0000000070E24000-memory.dmp

            Filesize

            3.3MB

          • memory/2176-161-0x0000000007930000-0x00000000079D3000-memory.dmp

            Filesize

            652KB

          • memory/2176-162-0x0000000006160000-0x0000000006171000-memory.dmp

            Filesize

            68KB

          • memory/2176-163-0x00000000061A0000-0x00000000061B4000-memory.dmp

            Filesize

            80KB

          • memory/2176-148-0x0000000006740000-0x000000000678C000-memory.dmp

            Filesize

            304KB

          • memory/2332-205-0x0000000070870000-0x00000000708BC000-memory.dmp

            Filesize

            304KB

          • memory/2332-196-0x0000000005690000-0x00000000059E4000-memory.dmp

            Filesize

            3.3MB

          • memory/2332-206-0x0000000071010000-0x0000000071364000-memory.dmp

            Filesize

            3.3MB

          • memory/4380-98-0x00000000709F0000-0x0000000070A3C000-memory.dmp

            Filesize

            304KB

          • memory/4380-99-0x0000000070B70000-0x0000000070EC4000-memory.dmp

            Filesize

            3.3MB

          • memory/4380-96-0x0000000006380000-0x00000000066D4000-memory.dmp

            Filesize

            3.3MB

          • memory/4444-23-0x0000000005FE0000-0x000000000602C000-memory.dmp

            Filesize

            304KB

          • memory/4444-31-0x0000000070A70000-0x0000000070DC4000-memory.dmp

            Filesize

            3.3MB

          • memory/4444-45-0x0000000007580000-0x0000000007623000-memory.dmp

            Filesize

            652KB

          • memory/4444-46-0x0000000007670000-0x000000000767A000-memory.dmp

            Filesize

            40KB

          • memory/4444-47-0x0000000007730000-0x00000000077C6000-memory.dmp

            Filesize

            600KB

          • memory/4444-48-0x0000000007690000-0x00000000076A1000-memory.dmp

            Filesize

            68KB

          • memory/4444-49-0x00000000076D0000-0x00000000076DE000-memory.dmp

            Filesize

            56KB

          • memory/4444-50-0x00000000076E0000-0x00000000076F4000-memory.dmp

            Filesize

            80KB

          • memory/4444-51-0x00000000077D0000-0x00000000077EA000-memory.dmp

            Filesize

            104KB

          • memory/4444-52-0x0000000007720000-0x0000000007728000-memory.dmp

            Filesize

            32KB

          • memory/4444-55-0x0000000074A50000-0x0000000075200000-memory.dmp

            Filesize

            7.7MB

          • memory/4444-42-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

            Filesize

            64KB

          • memory/4444-43-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

            Filesize

            64KB

          • memory/4444-44-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

            Filesize

            64KB

          • memory/4444-30-0x00000000708F0000-0x000000007093C000-memory.dmp

            Filesize

            304KB

          • memory/4444-41-0x0000000007560000-0x000000000757E000-memory.dmp

            Filesize

            120KB

          • memory/4444-29-0x0000000007520000-0x0000000007552000-memory.dmp

            Filesize

            200KB

          • memory/4444-28-0x000000007F160000-0x000000007F170000-memory.dmp

            Filesize

            64KB

          • memory/4444-27-0x0000000007360000-0x000000000737A000-memory.dmp

            Filesize

            104KB

          • memory/4444-26-0x00000000079C0000-0x000000000803A000-memory.dmp

            Filesize

            6.5MB

          • memory/4444-25-0x00000000072C0000-0x0000000007336000-memory.dmp

            Filesize

            472KB

          • memory/4444-24-0x00000000064D0000-0x0000000006514000-memory.dmp

            Filesize

            272KB

          • memory/4444-22-0x0000000005FA0000-0x0000000005FBE000-memory.dmp

            Filesize

            120KB

          • memory/4444-21-0x00000000059C0000-0x0000000005D14000-memory.dmp

            Filesize

            3.3MB

          • memory/4444-11-0x0000000005950000-0x00000000059B6000-memory.dmp

            Filesize

            408KB

          • memory/4444-10-0x00000000058E0000-0x0000000005946000-memory.dmp

            Filesize

            408KB

          • memory/4444-9-0x0000000004FF0000-0x0000000005012000-memory.dmp

            Filesize

            136KB

          • memory/4444-8-0x0000000005100000-0x0000000005728000-memory.dmp

            Filesize

            6.2MB

          • memory/4444-7-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

            Filesize

            64KB

          • memory/4444-6-0x0000000004A20000-0x0000000004A56000-memory.dmp

            Filesize

            216KB

          • memory/4444-5-0x0000000004AC0000-0x0000000004AD0000-memory.dmp

            Filesize

            64KB

          • memory/4444-4-0x0000000074A50000-0x0000000075200000-memory.dmp

            Filesize

            7.7MB

          • memory/4764-82-0x0000000006F80000-0x0000000006F91000-memory.dmp

            Filesize

            68KB

          • memory/4764-68-0x0000000005440000-0x0000000005794000-memory.dmp

            Filesize

            3.3MB

          • memory/4764-83-0x0000000006FD0000-0x0000000006FE4000-memory.dmp

            Filesize

            80KB

          • memory/4764-81-0x0000000006C50000-0x0000000006CF3000-memory.dmp

            Filesize

            652KB

          • memory/4764-71-0x0000000071190000-0x00000000714E4000-memory.dmp

            Filesize

            3.3MB

          • memory/4764-70-0x00000000709F0000-0x0000000070A3C000-memory.dmp

            Filesize

            304KB

          • memory/4764-69-0x0000000005AC0000-0x0000000005B0C000-memory.dmp

            Filesize

            304KB

          • memory/4904-192-0x0000000005A00000-0x0000000005A14000-memory.dmp

            Filesize

            80KB

          • memory/4904-176-0x00000000056A0000-0x00000000059F4000-memory.dmp

            Filesize

            3.3MB

          • memory/4904-178-0x00000000061A0000-0x00000000061EC000-memory.dmp

            Filesize

            304KB

          • memory/4904-179-0x0000000070870000-0x00000000708BC000-memory.dmp

            Filesize

            304KB

          • memory/4904-180-0x00000000709F0000-0x0000000070D44000-memory.dmp

            Filesize

            3.3MB

          • memory/4904-190-0x0000000006E20000-0x0000000006EC3000-memory.dmp

            Filesize

            652KB

          • memory/4904-191-0x0000000005470000-0x0000000005481000-memory.dmp

            Filesize

            68KB

          • memory/5048-233-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-236-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-245-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-243-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-241-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-239-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-223-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-225-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-227-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-228-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-231-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-166-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5048-235-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5100-1-0x0000000002000000-0x0000000002405000-memory.dmp

            Filesize

            4.0MB

          • memory/5100-2-0x0000000003E30000-0x000000000471B000-memory.dmp

            Filesize

            8.9MB

          • memory/5100-3-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB

          • memory/5100-58-0x0000000003E30000-0x000000000471B000-memory.dmp

            Filesize

            8.9MB

          • memory/5100-56-0x0000000000400000-0x0000000001DF1000-memory.dmp

            Filesize

            25.9MB