Analysis

  • max time kernel
    10s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    19-05-2024 21:46

General

  • Target

    4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf.exe

  • Size

    4.1MB

  • MD5

    5d17844c9a1fcee8877929627b5602ff

  • SHA1

    c5c43db67b05d6c3ba6ebec78e4d9068066cd308

  • SHA256

    4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf

  • SHA512

    a315f1ea29f6f67809cf18fc519e8ea34d8a806fef94b5be1bb9f6fafd4eb078e5cc91873b953c46ae90831924e25849a92c39a1b5109f2eee92279f0e0b99c7

  • SSDEEP

    98304:sX33DbWGkLHuFK+TwQmBC6reQ4TTNXYvI8KgvjrB0rs:sXPWAwQyCdJYw8Kggs

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
  • UPX packed file 6 IoCs

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

  • Drops file in System32 directory 3 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.

  • 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.

  • 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 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf.exe
    "C:\Users\Admin\AppData\Local\Temp\4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3016
    • 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:4508
    • C:\Users\Admin\AppData\Local\Temp\4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf.exe
      "C:\Users\Admin\AppData\Local\Temp\4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf.exe"
      2⤵
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4232
      • 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:4780
      • 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:1352
        • 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:3428
      • 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:1356
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4412
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
          PID:2456
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Command and Scripting Interpreter: PowerShell
            PID:2228
          • 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
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /delete /tn ScheduledUpdate /f
            4⤵
              PID:2416
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              powershell -nologo -noprofile
              4⤵
              • Command and Scripting Interpreter: PowerShell
              PID:3208
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              powershell -nologo -noprofile
              4⤵
              • Command and Scripting Interpreter: PowerShell
              PID:4464
            • 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⤵
                PID:2040
              • 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:1172
              • C:\Windows\windefender.exe
                "C:\Windows\windefender.exe"
                4⤵
                  PID:4780
                  • 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⤵
                      PID:3704
                      • 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
                        PID:4440
            • C:\Windows\windefender.exe
              C:\Windows\windefender.exe
              1⤵
                PID:1524

              Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gaauo35t.ap2.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

                9135c98b767109fe4b06e2ad87109820

                SHA1

                df07d5f12cde0f775ae7a7ac3891bd96b98f77a5

                SHA256

                e79ae06ec70d05dcdea8c852824f9a0a5ac0fb44e59fefe53d6c0e980f17bdfa

                SHA512

                7d3e7143dd9feb2ce11233fb2fc166543f2609744556f3c8fe74b021ce3b66fbe8bb0d83fef318e4918f4a939ad60b04793a7fc874c45c8e329f96423a5c8fcd

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

                Filesize

                19KB

                MD5

                76c76215eb0c8ac3989b2c2ac591105e

                SHA1

                6374d7a7b76e6da282d9dd064edf91821d1c94ca

                SHA256

                d54f62ed8756728879019eb4309523b7b97267a03cff3293eeb29004c03e7782

                SHA512

                4df85626bfc95a468c6c7116160309836e00357c8741128a0a3678ed0a95e148489e12ab22c09fec80cf38fde493293a88b1c43531f81422a28ad99849a38805

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

                Filesize

                19KB

                MD5

                02cb8735a834b5c628961ff12d9241d5

                SHA1

                b866a4e7a17e52250c9e00f60b0147b59a6baf95

                SHA256

                3bd3de0653694998970b760f5c97f7633ed3d6ba134a081d344f8a7453d02c39

                SHA512

                2abb8a67b2a780862e53dcc574803403e5bf09771c9e365c79332835bd82be5b00bbf4d8ae0d93a77411c87199af748a299fe2601bdd29aa26520de7a33e5520

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

                Filesize

                19KB

                MD5

                8182798e55cef19d00059e24eca09aa7

                SHA1

                f4365efb4300c3d4f531acd0f1d00b7e3af9fc63

                SHA256

                fc331089466487ce2774969d0ce5451befb948cf7267b80d046f48b28a4cf0f7

                SHA512

                939c107ea0942c26747212adf713951740f4e71af5cd482b3fd4afb4f7f0b88735854b57be23c50cfb6f786efd725ff7650241f341a02c3d901a008894dbd490

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

                Filesize

                19KB

                MD5

                494ed1d7cef826a87193fe7b619217bb

                SHA1

                6679ca08e75836b1c6cec82b902c9053858569dc

                SHA256

                01ad22c6f27c1f8ecb7a653dfa474734866c492e8e1ea3bca4f3408bd4c1e996

                SHA512

                00f837373207b985d115ea6fd845de6baee5dd279ac83d914b2dbceb3c505b07ec8b5d30bc60435396143d66f1db7a4a04afc4766d86061c920a4e2e9cd32ba5

              • C:\Windows\rss\csrss.exe

                Filesize

                4.1MB

                MD5

                5d17844c9a1fcee8877929627b5602ff

                SHA1

                c5c43db67b05d6c3ba6ebec78e4d9068066cd308

                SHA256

                4b1f7a21d63f7e7088eca3efb92986838b20fbd702ea041b5041f000f05eabaf

                SHA512

                a315f1ea29f6f67809cf18fc519e8ea34d8a806fef94b5be1bb9f6fafd4eb078e5cc91873b953c46ae90831924e25849a92c39a1b5109f2eee92279f0e0b99c7

              • C:\Windows\windefender.exe

                Filesize

                2.0MB

                MD5

                8e67f58837092385dcf01e8a2b4f5783

                SHA1

                012c49cfd8c5d06795a6f67ea2baf2a082cf8625

                SHA256

                166ddb03ff3c89bd4525ac390067e180fdd08f10fbcf4aadb0189541673c03fa

                SHA512

                40d8ae12663fc1851e171d9d86cea8bb12487b734c218d7b6f9742eb07d4ca265065cbd6d0bb908f8bda7e3d955c458dfe3fd13265bbf573b9351e0a2bf691ec

              • memory/1356-88-0x00000000706C0000-0x0000000070A17000-memory.dmp

                Filesize

                3.3MB

              • memory/1356-87-0x0000000070540000-0x000000007058C000-memory.dmp

                Filesize

                304KB

              • memory/1524-214-0x0000000000400000-0x00000000008DF000-memory.dmp

                Filesize

                4.9MB

              • memory/1524-222-0x0000000000400000-0x00000000008DF000-memory.dmp

                Filesize

                4.9MB

              • memory/1524-208-0x0000000000400000-0x00000000008DF000-memory.dmp

                Filesize

                4.9MB

              • memory/2228-136-0x00000000706C0000-0x0000000070A17000-memory.dmp

                Filesize

                3.3MB

              • memory/2228-135-0x0000000070540000-0x000000007058C000-memory.dmp

                Filesize

                304KB

              • memory/2456-256-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-220-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-224-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-200-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-228-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-236-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-216-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-232-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-252-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-248-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-244-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-212-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/2456-240-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/3016-193-0x0000000000400000-0x0000000000D1C000-memory.dmp

                Filesize

                9.1MB

              • memory/3016-121-0x0000000004940000-0x000000000522B000-memory.dmp

                Filesize

                8.9MB

              • memory/3016-2-0x0000000004940000-0x000000000522B000-memory.dmp

                Filesize

                8.9MB

              • memory/3016-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

                Filesize

                9.1MB

              • memory/3016-86-0x0000000004540000-0x000000000493B000-memory.dmp

                Filesize

                4.0MB

              • memory/3016-1-0x0000000004540000-0x000000000493B000-memory.dmp

                Filesize

                4.0MB

              • memory/3016-119-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/3208-167-0x0000000007BE0000-0x0000000007C84000-memory.dmp

                Filesize

                656KB

              • memory/3208-168-0x0000000007F40000-0x0000000007F51000-memory.dmp

                Filesize

                68KB

              • memory/3208-169-0x0000000006790000-0x00000000067A5000-memory.dmp

                Filesize

                84KB

              • memory/3208-157-0x0000000070460000-0x00000000704AC000-memory.dmp

                Filesize

                304KB

              • memory/3208-156-0x0000000006CE0000-0x0000000006D2C000-memory.dmp

                Filesize

                304KB

              • memory/3208-158-0x00000000706E0000-0x0000000070A37000-memory.dmp

                Filesize

                3.3MB

              • memory/3208-146-0x0000000006370000-0x00000000066C7000-memory.dmp

                Filesize

                3.3MB

              • memory/4232-192-0x0000000000400000-0x0000000002733000-memory.dmp

                Filesize

                35.2MB

              • memory/4412-98-0x00000000057C0000-0x0000000005B17000-memory.dmp

                Filesize

                3.3MB

              • memory/4412-109-0x0000000070790000-0x0000000070AE7000-memory.dmp

                Filesize

                3.3MB

              • memory/4412-108-0x0000000070540000-0x000000007058C000-memory.dmp

                Filesize

                304KB

              • memory/4464-182-0x00000000705E0000-0x0000000070937000-memory.dmp

                Filesize

                3.3MB

              • memory/4464-181-0x0000000070460000-0x00000000704AC000-memory.dmp

                Filesize

                304KB

              • memory/4464-179-0x0000000005690000-0x00000000059E7000-memory.dmp

                Filesize

                3.3MB

              • memory/4508-47-0x0000000007C20000-0x0000000007C28000-memory.dmp

                Filesize

                32KB

              • memory/4508-35-0x00000000079A0000-0x00000000079BE000-memory.dmp

                Filesize

                120KB

              • memory/4508-4-0x00000000742DE000-0x00000000742DF000-memory.dmp

                Filesize

                4KB

              • memory/4508-50-0x00000000742D0000-0x0000000074A81000-memory.dmp

                Filesize

                7.7MB

              • memory/4508-5-0x0000000003090000-0x00000000030C6000-memory.dmp

                Filesize

                216KB

              • memory/4508-46-0x0000000007C00000-0x0000000007C1A000-memory.dmp

                Filesize

                104KB

              • memory/4508-45-0x0000000007BB0000-0x0000000007BC5000-memory.dmp

                Filesize

                84KB

              • memory/4508-44-0x0000000007BA0000-0x0000000007BAE000-memory.dmp

                Filesize

                56KB

              • memory/4508-43-0x0000000007B50000-0x0000000007B61000-memory.dmp

                Filesize

                68KB

              • memory/4508-42-0x0000000007C40000-0x0000000007CD6000-memory.dmp

                Filesize

                600KB

              • memory/4508-41-0x0000000007B30000-0x0000000007B3A000-memory.dmp

                Filesize

                40KB

              • memory/4508-7-0x00000000742D0000-0x0000000074A81000-memory.dmp

                Filesize

                7.7MB

              • memory/4508-40-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

                Filesize

                104KB

              • memory/4508-6-0x00000000057A0000-0x0000000005DCA000-memory.dmp

                Filesize

                6.2MB

              • memory/4508-8-0x00000000742D0000-0x0000000074A81000-memory.dmp

                Filesize

                7.7MB

              • memory/4508-39-0x0000000008130000-0x00000000087AA000-memory.dmp

                Filesize

                6.5MB

              • memory/4508-38-0x00000000742D0000-0x0000000074A81000-memory.dmp

                Filesize

                7.7MB

              • memory/4508-24-0x0000000007940000-0x0000000007974000-memory.dmp

                Filesize

                208KB

              • memory/4508-25-0x0000000070540000-0x000000007058C000-memory.dmp

                Filesize

                304KB

              • memory/4508-9-0x0000000005E40000-0x0000000005E62000-memory.dmp

                Filesize

                136KB

              • memory/4508-10-0x0000000005F60000-0x0000000005FC6000-memory.dmp

                Filesize

                408KB

              • memory/4508-37-0x00000000742D0000-0x0000000074A81000-memory.dmp

                Filesize

                7.7MB

              • memory/4508-11-0x0000000005FD0000-0x0000000006036000-memory.dmp

                Filesize

                408KB

              • memory/4508-36-0x00000000079C0000-0x0000000007A64000-memory.dmp

                Filesize

                656KB

              • memory/4508-26-0x00000000706C0000-0x0000000070A17000-memory.dmp

                Filesize

                3.3MB

              • memory/4508-23-0x0000000006AE0000-0x0000000006B26000-memory.dmp

                Filesize

                280KB

              • memory/4508-22-0x00000000065E0000-0x000000000662C000-memory.dmp

                Filesize

                304KB

              • memory/4508-21-0x0000000006520000-0x000000000653E000-memory.dmp

                Filesize

                120KB

              • memory/4508-20-0x0000000006040000-0x0000000006397000-memory.dmp

                Filesize

                3.3MB

              • memory/4780-210-0x0000000000400000-0x00000000008DF000-memory.dmp

                Filesize

                4.9MB

              • memory/4780-206-0x0000000000400000-0x00000000008DF000-memory.dmp

                Filesize

                4.9MB

              • memory/4780-61-0x0000000070540000-0x000000007058C000-memory.dmp

                Filesize

                304KB

              • memory/4780-73-0x00000000075F0000-0x0000000007605000-memory.dmp

                Filesize

                84KB

              • memory/4780-72-0x00000000075A0000-0x00000000075B1000-memory.dmp

                Filesize

                68KB

              • memory/4780-71-0x0000000007270000-0x0000000007314000-memory.dmp

                Filesize

                656KB

              • memory/4780-62-0x0000000070750000-0x0000000070AA7000-memory.dmp

                Filesize

                3.3MB

              • memory/4780-60-0x0000000005B60000-0x0000000005EB7000-memory.dmp

                Filesize

                3.3MB