Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    18-05-2024 15:21

General

  • Target

    493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe

  • Size

    4.1MB

  • MD5

    ac233c7c3f8ae883227a86303784b263

  • SHA1

    5ea4bfbee38f8457bda16b350dd12b47a22dbbf5

  • SHA256

    493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e

  • SHA512

    ebc113f38a85d933a6fea5e86043ec1099bb3964169e31656419f6645bf279efa846f96d9bb47a0d20af0b9bd42250ecbba7337069747b444f733d678d1e7162

  • SSDEEP

    98304:L3/aXnuKq8lIi6YuYM5DOP1Yy/qFVYXqnggvBm2Aw6XSjras4uEiZDLpDRiiTm:L3/aer8lIiPc9ySnggpxAJiIuBVpFiiy

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 4 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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 6 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 4 IoCs
  • Launches sc.exe 1 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Program crash 1 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 11 IoCs
  • Suspicious use of WriteProcessMemory 36 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\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe
    "C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3692
    • 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:3904
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 2584
        3⤵
        • Program crash
        PID:3176
    • C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.exe
      "C:\Users\Admin\AppData\Local\Temp\493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e.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:1424
      • 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:2160
      • 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:4608
        • 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:2504
      • 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:3236
      • 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:3604
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3880
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          PID:3160
        • 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:1660
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2140
          • 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:3024
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1584
          • 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:472
          • 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:3944
          • C:\Windows\windefender.exe
            "C:\Windows\windefender.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3112
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /C sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:2520
              • C:\Windows\SysWOW64\sc.exe
                sc sdset WinDefender D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPLOCRSDRCWDWO;;;BA)(D;;WPDT;;;BA)(A;;CCLCSWLOCRRC;;;IU)(A;;CCLCSWLOCRRC;;;SU)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
                6⤵
                • Launches sc.exe
                • Suspicious use of AdjustPrivilegeToken
                PID:3080
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3904 -ip 3904
      1⤵
        PID:1008
      • C:\Windows\windefender.exe
        C:\Windows\windefender.exe
        1⤵
        • Executes dropped EXE
        • Modifies data under HKEY_USERS
        PID:3964

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tetvqaw2.dxl.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

        ac4917a885cf6050b1a483e4bc4d2ea5

        SHA1

        b1c0a9f27bd21c6bbb8e9be70db8777b4a2a640f

        SHA256

        e39062a62c3c7617feeeff95ea8a0be51104a0d36f46e44eea22556fda74d8d9

        SHA512

        092c67a3ecae1d187cad72a8ea1ea37cb78a0cf79c2cd7fb88953e5990669a2e871267015762fd46d274badb88ac0c1d73b00f1df7394d89bed48a3a45c2ba3d

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

        Filesize

        19KB

        MD5

        612ad335eef82714ca5dfa2409163055

        SHA1

        15b3ca2dc6bd1a8b527040f3f454917ea7f76814

        SHA256

        dbb0b92c5cebd596388ea368d36ee092161243d00bd99ba844440100dbcc441c

        SHA512

        eae4392b44eb79767335d58c962fa5a74b5c7ee8fe59046bbad937bcf62993c0c227a3d3112f4e4e7767afa62b8f555d11f02d4cbb58db5652ce192f66e69b98

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

        Filesize

        19KB

        MD5

        e158c5a329fcf5a13fa30e5c5a0a4b83

        SHA1

        ed8832cc11642db64d9e344415d5abb95e2736a2

        SHA256

        b13a4660bbb2f188cb6532d665ae06c24101b7864bbac6feb2a9f40d89eed018

        SHA512

        37eb8b417de8170240cc8b760902098c5f2d6f7831164865683fe19d1db734197a93d5b2b61fcff096366dd617fe1ace58136e41259cfe869cee1ee8a7feb98c

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

        Filesize

        19KB

        MD5

        795123c844557458a9a7e672dcd2a7bf

        SHA1

        bf13120228ee5f9a9a1274fb8848ecbc0e4e90d9

        SHA256

        38246d099f3659a89bfdc73ffe78615e0ed7331424a839cf5f12741b6c8d9554

        SHA512

        a29f32fa414e10a5a470563387cfe1f6b89e20009f8fc27b3918f117b00acdb0c2a9db54809997753efd7c2cc83abc65e3036cd4ad55d9e739928e1e0d30fac8

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

        Filesize

        19KB

        MD5

        bec11df1cfc40c081cdf87e6e31940c2

        SHA1

        2b4ab3d0a69ce15ce2be46a406fad81783ef6354

        SHA256

        85a146b0cac1c368b44308cafe435b23fb351c6f75052ad102a469e5cd9501b0

        SHA512

        c744f5bfeaabcfc9f803dcdd75d9aad528427e74dac55593df86b2a716caa1db6cc78da16282856bbd4e207ae7378c740b6ab81abe10e5655f0cdfbe7dda67e3

      • C:\Windows\rss\csrss.exe

        Filesize

        4.1MB

        MD5

        ac233c7c3f8ae883227a86303784b263

        SHA1

        5ea4bfbee38f8457bda16b350dd12b47a22dbbf5

        SHA256

        493955342edd82e18422e74302a8d8ec1599628ae07e64f6e19625c16d08f27e

        SHA512

        ebc113f38a85d933a6fea5e86043ec1099bb3964169e31656419f6645bf279efa846f96d9bb47a0d20af0b9bd42250ecbba7337069747b444f733d678d1e7162

      • C:\Windows\windefender.exe

        Filesize

        2.0MB

        MD5

        8e67f58837092385dcf01e8a2b4f5783

        SHA1

        012c49cfd8c5d06795a6f67ea2baf2a082cf8625

        SHA256

        166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa

        SHA512

        40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec

      • memory/1424-114-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/1424-120-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/1584-158-0x0000000070870000-0x00000000708BC000-memory.dmp

        Filesize

        304KB

      • memory/1584-159-0x00000000709F0000-0x0000000070D47000-memory.dmp

        Filesize

        3.3MB

      • memory/2160-65-0x0000000007450000-0x0000000007465000-memory.dmp

        Filesize

        84KB

      • memory/2160-67-0x00000000074B0000-0x00000000074B8000-memory.dmp

        Filesize

        32KB

      • memory/2160-63-0x0000000007400000-0x0000000007411000-memory.dmp

        Filesize

        68KB

      • memory/2160-62-0x00000000074D0000-0x0000000007566000-memory.dmp

        Filesize

        600KB

      • memory/2160-61-0x00000000070D0000-0x0000000007174000-memory.dmp

        Filesize

        656KB

      • memory/2160-52-0x0000000070AD0000-0x0000000070E27000-memory.dmp

        Filesize

        3.3MB

      • memory/2160-51-0x0000000070950000-0x000000007099C000-memory.dmp

        Filesize

        304KB

      • memory/2160-66-0x0000000007490000-0x00000000074AA000-memory.dmp

        Filesize

        104KB

      • memory/2160-64-0x0000000007440000-0x000000000744E000-memory.dmp

        Filesize

        56KB

      • memory/3024-145-0x0000000007600000-0x00000000076A4000-memory.dmp

        Filesize

        656KB

      • memory/3024-147-0x0000000006190000-0x00000000061A5000-memory.dmp

        Filesize

        84KB

      • memory/3024-146-0x0000000007940000-0x0000000007951000-memory.dmp

        Filesize

        68KB

      • memory/3024-134-0x00000000064E0000-0x000000000652C000-memory.dmp

        Filesize

        304KB

      • memory/3024-136-0x00000000709F0000-0x0000000070D47000-memory.dmp

        Filesize

        3.3MB

      • memory/3024-132-0x0000000005DF0000-0x0000000006147000-memory.dmp

        Filesize

        3.3MB

      • memory/3024-135-0x0000000070870000-0x00000000708BC000-memory.dmp

        Filesize

        304KB

      • memory/3112-184-0x0000000000400000-0x00000000008DF000-memory.dmp

        Filesize

        4.9MB

      • memory/3112-179-0x0000000000400000-0x00000000008DF000-memory.dmp

        Filesize

        4.9MB

      • memory/3236-83-0x0000000070B60000-0x0000000070EB7000-memory.dmp

        Filesize

        3.3MB

      • memory/3236-77-0x0000000006380000-0x00000000066D7000-memory.dmp

        Filesize

        3.3MB

      • memory/3236-82-0x0000000070950000-0x000000007099C000-memory.dmp

        Filesize

        304KB

      • memory/3604-105-0x0000000070AD0000-0x0000000070E27000-memory.dmp

        Filesize

        3.3MB

      • memory/3604-104-0x0000000070950000-0x000000007099C000-memory.dmp

        Filesize

        304KB

      • memory/3692-73-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3692-123-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/3692-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/3692-2-0x0000000004940000-0x000000000522B000-memory.dmp

        Filesize

        8.9MB

      • memory/3692-1-0x0000000004530000-0x0000000004937000-memory.dmp

        Filesize

        4.0MB

      • memory/3692-92-0x0000000004530000-0x0000000004937000-memory.dmp

        Filesize

        4.0MB

      • memory/3692-93-0x0000000004940000-0x000000000522B000-memory.dmp

        Filesize

        8.9MB

      • memory/3880-209-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-214-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-217-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-202-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-199-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-197-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-205-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-193-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-190-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-187-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-185-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-211-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3880-169-0x0000000000400000-0x0000000002738000-memory.dmp

        Filesize

        35.2MB

      • memory/3904-18-0x0000000005A00000-0x0000000005A66000-memory.dmp

        Filesize

        408KB

      • memory/3904-22-0x0000000005F20000-0x0000000005F6C000-memory.dmp

        Filesize

        304KB

      • memory/3904-8-0x0000000005850000-0x0000000005872000-memory.dmp

        Filesize

        136KB

      • memory/3904-6-0x0000000005120000-0x000000000574A000-memory.dmp

        Filesize

        6.2MB

      • memory/3904-7-0x00000000746E0000-0x0000000074E91000-memory.dmp

        Filesize

        7.7MB

      • memory/3904-41-0x00000000746E0000-0x0000000074E91000-memory.dmp

        Filesize

        7.7MB

      • memory/3904-5-0x0000000002A10000-0x0000000002A46000-memory.dmp

        Filesize

        216KB

      • memory/3904-4-0x00000000746EE000-0x00000000746EF000-memory.dmp

        Filesize

        4KB

      • memory/3904-19-0x00000000746E0000-0x0000000074E91000-memory.dmp

        Filesize

        7.7MB

      • memory/3904-40-0x00000000074C0000-0x00000000074CA000-memory.dmp

        Filesize

        40KB

      • memory/3904-20-0x0000000005A70000-0x0000000005DC7000-memory.dmp

        Filesize

        3.3MB

      • memory/3904-21-0x0000000005F00000-0x0000000005F1E000-memory.dmp

        Filesize

        120KB

      • memory/3904-39-0x0000000007480000-0x000000000749A000-memory.dmp

        Filesize

        104KB

      • memory/3904-14-0x0000000005920000-0x0000000005986000-memory.dmp

        Filesize

        408KB

      • memory/3904-23-0x0000000007050000-0x0000000007096000-memory.dmp

        Filesize

        280KB

      • memory/3904-38-0x0000000007AC0000-0x000000000813A000-memory.dmp

        Filesize

        6.5MB

      • memory/3904-24-0x00000000072F0000-0x0000000007324000-memory.dmp

        Filesize

        208KB

      • memory/3904-25-0x0000000070950000-0x000000007099C000-memory.dmp

        Filesize

        304KB

      • memory/3904-36-0x0000000007330000-0x000000000734E000-memory.dmp

        Filesize

        120KB

      • memory/3904-27-0x0000000070AD0000-0x0000000070E27000-memory.dmp

        Filesize

        3.3MB

      • memory/3904-26-0x00000000746E0000-0x0000000074E91000-memory.dmp

        Filesize

        7.7MB

      • memory/3904-37-0x0000000007350000-0x00000000073F4000-memory.dmp

        Filesize

        656KB

      • memory/3964-194-0x0000000000400000-0x00000000008DF000-memory.dmp

        Filesize

        4.9MB

      • memory/3964-188-0x0000000000400000-0x00000000008DF000-memory.dmp

        Filesize

        4.9MB

      • memory/3964-182-0x0000000000400000-0x00000000008DF000-memory.dmp

        Filesize

        4.9MB