Analysis

  • max time kernel
    151s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/10/2023, 15:30

General

  • Target

    ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6.exe

  • Size

    4.1MB

  • MD5

    520b8954b99474ac0536caf4695ab729

  • SHA1

    345403bc1ca15d472cb0737ba50ae61ce507e7a1

  • SHA256

    ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6

  • SHA512

    bf02a38c828616472fb2787e4c5b63ddd64e48bb28227d1f373312261d4939bea0a9b05ec83c059560ddf806bf8138649fb543df94ca909f58084ab6533da91c

  • SSDEEP

    98304:JIDb6APb3B3cjXDb4LpcUyA3svMcEM6YAMQ38aP+:WDb6ADBuTWAwEXttjQ3N+

Malware Config

Signatures

  • Glupteba

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

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

  • 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
  • Launches sc.exe 1 IoCs

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

  • 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 25 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\ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6.exe
    "C:\Users\Admin\AppData\Local\Temp\ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3044
    • C:\Users\Admin\AppData\Local\Temp\ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6.exe
      "C:\Users\Admin\AppData\Local\Temp\ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6.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:4252
      • 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:4572
      • 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:412
        • 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:3672
      • 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:4432
      • 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:3376
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        PID:4060
        • 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:468
        • 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:4464
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3104
          • 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:4208
          • 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:4752
          • 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⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:2780
          • 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:232
          • C:\Windows\windefender.exe
            "C:\Windows\windefender.exe"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:3944
            • 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:3592
              • 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:1368
    • C:\Windows\windefender.exe
      C:\Windows\windefender.exe
      1⤵
      • Modifies data under HKEY_USERS
      PID:2600

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wwepey0y.qqg.ps1

            Filesize

            60B

            MD5

            d17fe0a3f47be24a6453e9ef58c94641

            SHA1

            6ab83620379fc69f80c0242105ddffd7d98d5d9d

            SHA256

            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

            SHA512

            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

          • 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

            e43fb4b5e9f4e1465cabe05344a00e95

            SHA1

            3c502fd31d9d5d73426e097ce1ada5b52887fa8e

            SHA256

            9c5b22aa515d61d7b7f11a038e2fc5e864d4565d32f4dfb954942602298bc915

            SHA512

            36d86181b8326dadc79c7c0001ec8b8e59cfd6fb508c96178de5147403cb8ac1d5fdab0f097394b17ae84b477c35676d9af4feb953e91a10454e02afe36ed7d9

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

            Filesize

            19KB

            MD5

            3b18d083705b6173b8bd89a87a08365f

            SHA1

            9abe030943d61f720e4c4302dbf78e7911f806fa

            SHA256

            048273c6908a37e1d123465c1292ea90e041e4cbc1016bed8caf14fda9d4b2d1

            SHA512

            e31f970ba2728e0c7e8e081773ef5b89ec7b198c8d53f20bc0a8fb9aa21edf58a652d3c92cf51f779ee257d88dd570bc65f7f71f618baaa3917ef4aeb7e9829e

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

            Filesize

            19KB

            MD5

            29fff8d27cf26647304d6ff4511d577b

            SHA1

            1dcbcdbdb0f5b3c42f23f21d3aa10bff33d88d60

            SHA256

            c8a916fcc981579daf936de26c65c01c559fa3417c938b4416c339f6b6b7e243

            SHA512

            19246ae990dd41eb8d2a5b151fddb44be9fbfe0a0d68d5348fca89242dc130e5187a62fbcf0628d2eb20f34e0fdddc7a011949afa9c5608808cd8d0b30300211

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

            Filesize

            19KB

            MD5

            8a3700ea9a0c20621dbd7871bdee77e7

            SHA1

            85a98806bbc3977dcb3642f2850092ae55ad6989

            SHA256

            01f4080175368c4d5750fd86991983dc030cbf4ffcd8cfa5294105ed2bb6a55c

            SHA512

            99c66c519a39311183012a4104cd48eaaefb2d9f0a7b17ad1dfeed4a98645c47d1af712e43ec9faac612b34a739af802fbbf9c9ac2c78c8b7ee9750fc16f6b9b

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

            Filesize

            19KB

            MD5

            067bf8074d45464f81143537e62d1b65

            SHA1

            c6ba0c13f71bf4095bcc3b8b3bb86e1b0d7f5b5c

            SHA256

            11dfefae8a83188cce86421dd42662fc384d84ae5cec38a7a7f655aacb2b787e

            SHA512

            0f36a34ce644bd477da470867b6266ee925f3c143265e147543b50dc44a1c68e446ef42c22fc3af829048e881d9451a51f9f5879c25afe51373d39bd7dd22742

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            520b8954b99474ac0536caf4695ab729

            SHA1

            345403bc1ca15d472cb0737ba50ae61ce507e7a1

            SHA256

            ac414b7faa88e1ebc9981ba258338bbd8a55511352bb6a12af406066afe318a6

            SHA512

            bf02a38c828616472fb2787e4c5b63ddd64e48bb28227d1f373312261d4939bea0a9b05ec83c059560ddf806bf8138649fb543df94ca909f58084ab6533da91c

          • memory/1612-24-0x0000000002B30000-0x0000000002F29000-memory.dmp

            Filesize

            4.0MB

          • memory/1612-1-0x0000000002B30000-0x0000000002F29000-memory.dmp

            Filesize

            4.0MB

          • memory/1612-2-0x0000000002F30000-0x000000000381B000-memory.dmp

            Filesize

            8.9MB

          • memory/1612-22-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/1612-3-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/1612-58-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/1612-26-0x0000000002F30000-0x000000000381B000-memory.dmp

            Filesize

            8.9MB

          • memory/1612-51-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/2600-286-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/2600-314-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/2600-356-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/3044-49-0x0000000007D70000-0x0000000007E06000-memory.dmp

            Filesize

            600KB

          • memory/3044-54-0x0000000007E10000-0x0000000007E2A000-memory.dmp

            Filesize

            104KB

          • memory/3044-30-0x0000000074E80000-0x0000000075630000-memory.dmp

            Filesize

            7.7MB

          • memory/3044-31-0x0000000008010000-0x000000000868A000-memory.dmp

            Filesize

            6.5MB

          • memory/3044-32-0x00000000079B0000-0x00000000079CA000-memory.dmp

            Filesize

            104KB

          • memory/3044-33-0x0000000003010000-0x0000000003020000-memory.dmp

            Filesize

            64KB

          • memory/3044-34-0x0000000007B60000-0x0000000007B92000-memory.dmp

            Filesize

            200KB

          • memory/3044-35-0x0000000070D20000-0x0000000070D6C000-memory.dmp

            Filesize

            304KB

          • memory/3044-36-0x0000000071450000-0x00000000717A4000-memory.dmp

            Filesize

            3.3MB

          • memory/3044-46-0x0000000007B40000-0x0000000007B5E000-memory.dmp

            Filesize

            120KB

          • memory/3044-47-0x0000000007BA0000-0x0000000007C43000-memory.dmp

            Filesize

            652KB

          • memory/3044-48-0x0000000007CB0000-0x0000000007CBA000-memory.dmp

            Filesize

            40KB

          • memory/3044-28-0x0000000003010000-0x0000000003020000-memory.dmp

            Filesize

            64KB

          • memory/3044-50-0x0000000007CD0000-0x0000000007CE1000-memory.dmp

            Filesize

            68KB

          • memory/3044-27-0x0000000006B40000-0x0000000006B84000-memory.dmp

            Filesize

            272KB

          • memory/3044-52-0x0000000007D10000-0x0000000007D1E000-memory.dmp

            Filesize

            56KB

          • memory/3044-53-0x0000000007D20000-0x0000000007D34000-memory.dmp

            Filesize

            80KB

          • memory/3044-9-0x0000000005610000-0x0000000005632000-memory.dmp

            Filesize

            136KB

          • memory/3044-55-0x0000000007D50000-0x0000000007D58000-memory.dmp

            Filesize

            32KB

          • memory/3044-57-0x0000000074E80000-0x0000000075630000-memory.dmp

            Filesize

            7.7MB

          • memory/3044-25-0x0000000006950000-0x000000000699C000-memory.dmp

            Filesize

            304KB

          • memory/3044-8-0x00000000056C0000-0x0000000005CE8000-memory.dmp

            Filesize

            6.2MB

          • memory/3044-23-0x00000000065E0000-0x00000000065FE000-memory.dmp

            Filesize

            120KB

          • memory/3044-29-0x0000000007910000-0x0000000007986000-memory.dmp

            Filesize

            472KB

          • memory/3044-7-0x0000000003010000-0x0000000003020000-memory.dmp

            Filesize

            64KB

          • memory/3044-10-0x0000000005CF0000-0x0000000005D56000-memory.dmp

            Filesize

            408KB

          • memory/3044-17-0x0000000005F50000-0x00000000062A4000-memory.dmp

            Filesize

            3.3MB

          • memory/3044-4-0x0000000074E80000-0x0000000075630000-memory.dmp

            Filesize

            7.7MB

          • memory/3044-5-0x0000000002FD0000-0x0000000003006000-memory.dmp

            Filesize

            216KB

          • memory/3044-11-0x0000000005E60000-0x0000000005EC6000-memory.dmp

            Filesize

            408KB

          • memory/3044-6-0x0000000003010000-0x0000000003020000-memory.dmp

            Filesize

            64KB

          • memory/3376-135-0x00000000058E0000-0x0000000005C34000-memory.dmp

            Filesize

            3.3MB

          • memory/3376-129-0x0000000000E50000-0x0000000000E60000-memory.dmp

            Filesize

            64KB

          • memory/3376-128-0x0000000000E50000-0x0000000000E60000-memory.dmp

            Filesize

            64KB

          • memory/3376-127-0x0000000074F20000-0x00000000756D0000-memory.dmp

            Filesize

            7.7MB

          • memory/3944-273-0x0000000000400000-0x00000000008DF000-memory.dmp

            Filesize

            4.9MB

          • memory/4060-343-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-221-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-227-0x0000000075720000-0x0000000075730000-memory.dmp

            Filesize

            64KB

          • memory/4060-260-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-274-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-287-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-301-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-315-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-329-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4060-357-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4252-126-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4252-175-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4252-91-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4252-61-0x0000000000400000-0x0000000000D1B000-memory.dmp

            Filesize

            9.1MB

          • memory/4252-89-0x00000000028A0000-0x0000000002CA0000-memory.dmp

            Filesize

            4.0MB

          • memory/4252-60-0x00000000028A0000-0x0000000002CA0000-memory.dmp

            Filesize

            4.0MB

          • memory/4432-112-0x0000000004970000-0x0000000004980000-memory.dmp

            Filesize

            64KB

          • memory/4432-99-0x0000000004970000-0x0000000004980000-memory.dmp

            Filesize

            64KB

          • memory/4432-98-0x0000000074F20000-0x00000000756D0000-memory.dmp

            Filesize

            7.7MB

          • memory/4432-100-0x0000000004970000-0x0000000004980000-memory.dmp

            Filesize

            64KB

          • memory/4432-106-0x0000000005870000-0x0000000005BC4000-memory.dmp

            Filesize

            3.3MB

          • memory/4432-113-0x0000000070E20000-0x0000000070E6C000-memory.dmp

            Filesize

            304KB

          • memory/4432-114-0x00000000715E0000-0x0000000071934000-memory.dmp

            Filesize

            3.3MB

          • memory/4432-125-0x0000000074F20000-0x00000000756D0000-memory.dmp

            Filesize

            7.7MB

          • memory/4572-90-0x0000000007A30000-0x0000000007A41000-memory.dmp

            Filesize

            68KB

          • memory/4572-88-0x0000000007740000-0x00000000077E3000-memory.dmp

            Filesize

            652KB

          • memory/4572-78-0x0000000070FB0000-0x0000000071304000-memory.dmp

            Filesize

            3.3MB

          • memory/4572-77-0x0000000070E20000-0x0000000070E6C000-memory.dmp

            Filesize

            304KB

          • memory/4572-76-0x000000007F320000-0x000000007F330000-memory.dmp

            Filesize

            64KB

          • memory/4572-75-0x0000000004F50000-0x0000000004F60000-memory.dmp

            Filesize

            64KB

          • memory/4572-74-0x00000000066F0000-0x000000000673C000-memory.dmp

            Filesize

            304KB

          • memory/4572-73-0x0000000005FB0000-0x0000000006304000-memory.dmp

            Filesize

            3.3MB

          • memory/4572-63-0x0000000004F50000-0x0000000004F60000-memory.dmp

            Filesize

            64KB

          • memory/4572-62-0x0000000074F20000-0x00000000756D0000-memory.dmp

            Filesize

            7.7MB

          • memory/4572-92-0x0000000007AA0000-0x0000000007AB4000-memory.dmp

            Filesize

            80KB

          • memory/4572-96-0x0000000074F20000-0x00000000756D0000-memory.dmp

            Filesize

            7.7MB