Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-05-2024 13:25

General

  • Target

    bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe

  • Size

    4.1MB

  • MD5

    1bacb5aadaabb6e4b152ff2ce5fbd65b

  • SHA1

    2b3768b2b80a5ea2ce90de1026e68bbd4943dd33

  • SHA256

    bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729

  • SHA512

    df1d9660df44e66ba67bbfd12084e6bac3cc7c4f1bfcd95c4567dece92d964a2e737f2e11e1581117a14cc66491106c1dbd3ca9c9dbdbb074951d1c31da864f3

  • SSDEEP

    98304:MQJMl/iXMhTmfDhNRe9xfYVEx7xkD10HZd3scl3XzHAtmo0Fq:Hb8hTmbBIxHPR3rn3oKq

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.

  • 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 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\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe
    "C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:916
    • 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:1624
    • C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.exe
      "C:\Users\Admin\AppData\Local\Temp\bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729.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:524
      • 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:1620
      • 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:3652
        • 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:4468
      • 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:4892
      • 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:388
      • 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:3872
        • 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:1208
        • 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:2604
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5068
          • 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:4656
          • 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:4936
          • 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:368
          • 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:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 524 -s 716
          3⤵
          • Program crash
          PID:4804
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 524 -ip 524
      1⤵
        PID:3636

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jqplqmvj.qth.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

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

        Filesize

        19KB

        MD5

        3bf22b7a5cf1e50064d89fd5145be6cf

        SHA1

        f4b1dae5fc898455ca2994f042f617278bcce65f

        SHA256

        9dd18ee78583d3da9f8f3d29ec561845eef355d933898c8306b951aa2c715580

        SHA512

        93a15aa9c9bbd34b1dfebd44135a8c772140ae8ee23d1f6f0efd03fd5d7900f268831d23979c917ca25f7d40ee327e2446ef54236c86179fd286aaa0586e53db

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

        Filesize

        19KB

        MD5

        1a3ea682eaa2a3d8edadc5e568212ec6

        SHA1

        e54f5ea3a26b37ce1e459e874990ee6d03b93c7d

        SHA256

        e7529fc446192ddb41dcd28c086f648bd6c66f9a7ae80c14524644b73e488bbc

        SHA512

        cc977340bcb8821c0f5cd4a6d837eef81bf1cd0f48af9356504b3251771d0a51c4e14cb6f6655f509986f2187cb4dd1b7adadfb73e5195eb7d6c451c12ecb189

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

        Filesize

        19KB

        MD5

        6f320247f117159c1854fa33a6bfccd1

        SHA1

        97c36282dce92bb2eeff34247e3d28dce8b0565f

        SHA256

        30565d60452f9a0a0012659afac66dafa6a2a535c694a2885c202774fd114b8a

        SHA512

        5573fcce58fb315fd351d808a5dc80eb3dd01280dc4fbf29f028c7cc936dd046413216e844bf7fb5b3674121dffbb220ed20b12ba40920ccc62d7e79d969f632

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

        Filesize

        19KB

        MD5

        75e7629e7f700fccbc6e9921621a7484

        SHA1

        2b1269e06fa037d4e32614f08cd9221d0176bdd0

        SHA256

        0a0246758fa6d96794ca2c9ff1485cf69a13329494e0284e6bf4f2a6aa074505

        SHA512

        37c45e7a75260b87e8086adff12826e97bbdd29db7dc8f685684232824721eaa886d31a25ba603ad9375453d63794f3cb941d268d2626fdec0afbe4f6de71f99

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

        Filesize

        19KB

        MD5

        58f276fccf3bde613a86ef0c916bfd5b

        SHA1

        006893dc5f4748e9ab71af84a036cc41dbf09119

        SHA256

        ceded8a1f1e8f33e465aed957f5c491472ffe577746d3fac50a78c043252e20b

        SHA512

        e00704d739e27a18a2c023f8c4f0948e22ed7c738bd2fdf5324777a4afd0d0b2e27edb7b9e14a9f85508052dfde0017e47c84fe71efaa1bbbe620dc6bc20985f

      • C:\Windows\rss\csrss.exe

        Filesize

        4.1MB

        MD5

        1bacb5aadaabb6e4b152ff2ce5fbd65b

        SHA1

        2b3768b2b80a5ea2ce90de1026e68bbd4943dd33

        SHA256

        bfcb56c53320dc38e4a3537d38f88a027af42181e41f93ed8a4b10bf04fb8729

        SHA512

        df1d9660df44e66ba67bbfd12084e6bac3cc7c4f1bfcd95c4567dece92d964a2e737f2e11e1581117a14cc66491106c1dbd3ca9c9dbdbb074951d1c31da864f3

      • memory/388-122-0x0000000070E30000-0x0000000071184000-memory.dmp

        Filesize

        3.3MB

      • memory/388-121-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

        Filesize

        304KB

      • memory/524-138-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/524-98-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/916-58-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/916-55-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/916-2-0x0000000004CB0000-0x000000000559B000-memory.dmp

        Filesize

        8.9MB

      • memory/916-57-0x0000000004CB0000-0x000000000559B000-memory.dmp

        Filesize

        8.9MB

      • memory/916-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

        Filesize

        9.1MB

      • memory/916-1-0x00000000048B0000-0x0000000004CAF000-memory.dmp

        Filesize

        4.0MB

      • memory/916-4-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/1208-162-0x00000000073A0000-0x0000000007443000-memory.dmp

        Filesize

        652KB

      • memory/1208-164-0x0000000005F60000-0x0000000005F74000-memory.dmp

        Filesize

        80KB

      • memory/1208-163-0x0000000007710000-0x0000000007721000-memory.dmp

        Filesize

        68KB

      • memory/1208-151-0x0000000070C10000-0x0000000070C5C000-memory.dmp

        Filesize

        304KB

      • memory/1208-139-0x0000000005A80000-0x0000000005DD4000-memory.dmp

        Filesize

        3.3MB

      • memory/1208-150-0x0000000006290000-0x00000000062DC000-memory.dmp

        Filesize

        304KB

      • memory/1208-152-0x00000000713B0000-0x0000000071704000-memory.dmp

        Filesize

        3.3MB

      • memory/1620-81-0x0000000007380000-0x0000000007423000-memory.dmp

        Filesize

        652KB

      • memory/1620-71-0x0000000070E30000-0x0000000071184000-memory.dmp

        Filesize

        3.3MB

      • memory/1620-70-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

        Filesize

        304KB

      • memory/1620-69-0x00000000061E0000-0x000000000622C000-memory.dmp

        Filesize

        304KB

      • memory/1620-68-0x0000000005D70000-0x00000000060C4000-memory.dmp

        Filesize

        3.3MB

      • memory/1620-82-0x00000000076B0000-0x00000000076C1000-memory.dmp

        Filesize

        68KB

      • memory/1620-83-0x0000000007700000-0x0000000007714000-memory.dmp

        Filesize

        80KB

      • memory/1624-31-0x0000000071310000-0x0000000071664000-memory.dmp

        Filesize

        3.3MB

      • memory/1624-10-0x00000000051E0000-0x0000000005202000-memory.dmp

        Filesize

        136KB

      • memory/1624-51-0x0000000007290000-0x0000000007298000-memory.dmp

        Filesize

        32KB

      • memory/1624-50-0x00000000072B0000-0x00000000072CA000-memory.dmp

        Filesize

        104KB

      • memory/1624-49-0x0000000007270000-0x0000000007284000-memory.dmp

        Filesize

        80KB

      • memory/1624-48-0x0000000007170000-0x000000000717E000-memory.dmp

        Filesize

        56KB

      • memory/1624-46-0x00000000070F0000-0x0000000007101000-memory.dmp

        Filesize

        68KB

      • memory/1624-47-0x0000000074D10000-0x00000000754C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1624-45-0x0000000007190000-0x0000000007226000-memory.dmp

        Filesize

        600KB

      • memory/1624-44-0x00000000070D0000-0x00000000070DA000-memory.dmp

        Filesize

        40KB

      • memory/1624-41-0x0000000074D10000-0x00000000754C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1624-43-0x0000000006FE0000-0x0000000007083000-memory.dmp

        Filesize

        652KB

      • memory/1624-5-0x0000000004420000-0x0000000004456000-memory.dmp

        Filesize

        216KB

      • memory/1624-42-0x0000000006FC0000-0x0000000006FDE000-memory.dmp

        Filesize

        120KB

      • memory/1624-29-0x0000000006F80000-0x0000000006FB2000-memory.dmp

        Filesize

        200KB

      • memory/1624-6-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

        Filesize

        4KB

      • memory/1624-7-0x0000000074D10000-0x00000000754C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1624-30-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

        Filesize

        304KB

      • memory/1624-28-0x0000000006DD0000-0x0000000006DEA000-memory.dmp

        Filesize

        104KB

      • memory/1624-27-0x0000000007430000-0x0000000007AAA000-memory.dmp

        Filesize

        6.5MB

      • memory/1624-26-0x0000000006D30000-0x0000000006DA6000-memory.dmp

        Filesize

        472KB

      • memory/1624-25-0x0000000005F60000-0x0000000005FA4000-memory.dmp

        Filesize

        272KB

      • memory/1624-24-0x0000000005AD0000-0x0000000005B1C000-memory.dmp

        Filesize

        304KB

      • memory/1624-23-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

        Filesize

        120KB

      • memory/1624-18-0x00000000053E0000-0x0000000005734000-memory.dmp

        Filesize

        3.3MB

      • memory/1624-12-0x0000000005370000-0x00000000053D6000-memory.dmp

        Filesize

        408KB

      • memory/1624-11-0x0000000005300000-0x0000000005366000-memory.dmp

        Filesize

        408KB

      • memory/1624-54-0x0000000074D10000-0x00000000754C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1624-9-0x0000000074D10000-0x00000000754C0000-memory.dmp

        Filesize

        7.7MB

      • memory/1624-8-0x0000000004BB0000-0x00000000051D8000-memory.dmp

        Filesize

        6.2MB

      • memory/3872-226-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-229-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-230-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-228-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-227-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-225-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-179-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-224-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-223-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-222-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/3872-231-0x0000000000400000-0x0000000002B0D000-memory.dmp

        Filesize

        39.1MB

      • memory/4656-172-0x0000000005A30000-0x0000000005D84000-memory.dmp

        Filesize

        3.3MB

      • memory/4656-192-0x0000000005E40000-0x0000000005E54000-memory.dmp

        Filesize

        80KB

      • memory/4656-191-0x0000000005E00000-0x0000000005E11000-memory.dmp

        Filesize

        68KB

      • memory/4656-178-0x0000000070B30000-0x0000000070B7C000-memory.dmp

        Filesize

        304KB

      • memory/4656-180-0x00000000712E0000-0x0000000071634000-memory.dmp

        Filesize

        3.3MB

      • memory/4656-190-0x0000000007270000-0x0000000007313000-memory.dmp

        Filesize

        652KB

      • memory/4656-177-0x0000000006070000-0x00000000060BC000-memory.dmp

        Filesize

        304KB

      • memory/4892-92-0x0000000005D60000-0x00000000060B4000-memory.dmp

        Filesize

        3.3MB

      • memory/4892-100-0x0000000071450000-0x00000000717A4000-memory.dmp

        Filesize

        3.3MB

      • memory/4892-99-0x0000000070CB0000-0x0000000070CFC000-memory.dmp

        Filesize

        304KB

      • memory/4936-202-0x0000000005D60000-0x00000000060B4000-memory.dmp

        Filesize

        3.3MB

      • memory/4936-206-0x00000000712C0000-0x0000000071614000-memory.dmp

        Filesize

        3.3MB

      • memory/4936-205-0x0000000070B30000-0x0000000070B7C000-memory.dmp

        Filesize

        304KB