Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03/10/2023, 09:26

General

  • Target

    a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e.exe

  • Size

    4.2MB

  • MD5

    9e007f98ca02e5bc4b17148cf5cc0c51

  • SHA1

    a85a6f47c0b243f7cc9a3266d23f0725aee051b5

  • SHA256

    a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e

  • SHA512

    0024bd76c0e254d843a42a6b586077cfa8888839ff6ec2bcda980ac2cad6bb6bd1dd996dc82c995d4a5229ef891f777d78b544d3fa864f241d5cb8c5b6be1751

  • SSDEEP

    98304:AMXW9xFhF1uQmDdbv5NleFWRJn+be40jKf+3KaaEdet0Y4K78h+o:fXW/V1uDDdbvJRUqofAKKdet0Yn78r

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 20 IoCs
  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 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
  • 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\a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e.exe
    "C:\Users\Admin\AppData\Local\Temp\a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4284
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4344
    • C:\Users\Admin\AppData\Local\Temp\a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e.exe
      "C:\Users\Admin\AppData\Local\Temp\a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • 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:3668
      • 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:2132
      • 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:3132
        • 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:4664
      • 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:4348
      • 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:4356
      • 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:1096
        • 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:4988
        • 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:740
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:2980
          • 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:756
          • 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:5044
          • 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:4668
          • 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:2632

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rvy4dnwm.iqo.ps1

            Filesize

            1B

            MD5

            c4ca4238a0b923820dcc509a6f75849b

            SHA1

            356a192b7913b04c54574d18c28d46e6395428ab

            SHA256

            6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

            SHA512

            4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

            Filesize

            281KB

            MD5

            d98e33b66343e7c96158444127a117f6

            SHA1

            bb716c5509a2bf345c6c1152f6e3e1452d39d50d

            SHA256

            5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

            SHA512

            705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

          • 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

            db01a2c1c7e70b2b038edf8ad5ad9826

            SHA1

            540217c647a73bad8d8a79e3a0f3998b5abd199b

            SHA256

            413da361d77055dae7007f82b58b366c8783aa72e0b8fbe41519b940c253b38d

            SHA512

            c76ff57fcee5cdf9fdf3116d4e1dc0cf106867bf19ab474b763e242acf5dca9a7509cb837c35e130c3e056636b4e8a4e135512a978bcd3dd641e20f5bf76c3d6

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

            Filesize

            18KB

            MD5

            926809593fd8ae4b45e6b387930695ca

            SHA1

            858065dc89eb5e877d3a3cb09ea468cfae5cf5d7

            SHA256

            f2ee2efef9238e63f9cdd74cb9966fd44b4fd11b713db2edc364e5c92b2e3dd8

            SHA512

            93211c8ba800e4214ab9c6726793b7480f7404859b380a1817102b38802932b4380799d945fc85f544c3a7d8b8a1dcb452451a14c57a97a985b4027327e0fdc6

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

            Filesize

            18KB

            MD5

            92bba0007874176bc43592bed2114c5a

            SHA1

            8a6570a933c41e83ac4d3118fa4c2110bbcdbe81

            SHA256

            31e16b1779286db28513a461204f0d3dd2038305c6899f615c0ab58eca5d908d

            SHA512

            8a351a971e15c7aabdfc0eb64fe7b18fce51acf7928ad8f50473c16737c227f54e99d16680fb400b4cb639f061d26f7338f60c531a959021aae8e998dfc6cc92

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

            Filesize

            18KB

            MD5

            7efa9fbd814e532b841cc3d4ad2fedbf

            SHA1

            aa5a6ecf672cc498cc2ead0f6edeef3e163f0828

            SHA256

            1ff59b2203e534bfe1746d22b86b016e757ee032d54dd00cca2189af235a7711

            SHA512

            2cd48d69aca66037b4699973571aba1a1af354341d10b68e78f8220bccb0be82fe30acb85dcbf39b666ebde357ac673e6263a4948ae8b6f11ea3b65059872df0

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

            Filesize

            18KB

            MD5

            cf0a93fac9f9c901b44d942818b78b1b

            SHA1

            f25d760906a12f14baf6deed345b1f2dbae8e255

            SHA256

            e6f500b1df0b8ae94d331b5ebe8a49f264aeab80be5312a04fa786cc44d16dde

            SHA512

            cd52b9b9af8a911d58fe42307ba952210978b0e343f08c6c6904b37b422316e4c6df3ff645284a4ec5c61c244b5016686455b4300e42b4bceb4604c4d22e1ab4

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

            Filesize

            18KB

            MD5

            143ffcd8af474dcddc22028a39a11f91

            SHA1

            27e1e0750b9463dc7625c7c761680e4fb8011837

            SHA256

            f039c52e66fed39691d0530fea9bda547699787bfbdc4629e24d008d330d9ee6

            SHA512

            c69f86fdb1d596f43bd6de967c6a966b3b65cefa13c62442b9ea57edd32f196c3f6b1e512d5fc01ca132838a4f79aefe613e31f596b49e4bdba7ea280f9492ca

          • C:\Windows\rss\csrss.exe

            Filesize

            4.2MB

            MD5

            9e007f98ca02e5bc4b17148cf5cc0c51

            SHA1

            a85a6f47c0b243f7cc9a3266d23f0725aee051b5

            SHA256

            a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e

            SHA512

            0024bd76c0e254d843a42a6b586077cfa8888839ff6ec2bcda980ac2cad6bb6bd1dd996dc82c995d4a5229ef891f777d78b544d3fa864f241d5cb8c5b6be1751

          • C:\Windows\rss\csrss.exe

            Filesize

            4.2MB

            MD5

            9e007f98ca02e5bc4b17148cf5cc0c51

            SHA1

            a85a6f47c0b243f7cc9a3266d23f0725aee051b5

            SHA256

            a7a45bdd7ce5c1d6a19c1f5f4c3bff711097936737012df36f4850619c50cb0e

            SHA512

            0024bd76c0e254d843a42a6b586077cfa8888839ff6ec2bcda980ac2cad6bb6bd1dd996dc82c995d4a5229ef891f777d78b544d3fa864f241d5cb8c5b6be1751

          • memory/1096-1059-0x0000000004800000-0x0000000004BF9000-memory.dmp

            Filesize

            4.0MB

          • memory/1096-1814-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1583-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1811-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1810-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1816-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1812-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1237-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1815-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1813-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/1096-1061-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/2132-316-0x00000000073F0000-0x0000000007400000-memory.dmp

            Filesize

            64KB

          • memory/2132-314-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/2132-533-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/2132-346-0x00000000073F0000-0x0000000007400000-memory.dmp

            Filesize

            64KB

          • memory/2132-344-0x0000000009B60000-0x0000000009C05000-memory.dmp

            Filesize

            660KB

          • memory/2132-339-0x0000000070B90000-0x0000000070EE0000-memory.dmp

            Filesize

            3.3MB

          • memory/2132-337-0x000000007F210000-0x000000007F220000-memory.dmp

            Filesize

            64KB

          • memory/2132-338-0x0000000070B40000-0x0000000070B8B000-memory.dmp

            Filesize

            300KB

          • memory/2132-318-0x0000000008690000-0x00000000086DB000-memory.dmp

            Filesize

            300KB

          • memory/2132-564-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/2132-554-0x00000000073F0000-0x0000000007400000-memory.dmp

            Filesize

            64KB

          • memory/2132-317-0x00000000081D0000-0x0000000008520000-memory.dmp

            Filesize

            3.3MB

          • memory/2132-315-0x00000000073F0000-0x0000000007400000-memory.dmp

            Filesize

            64KB

          • memory/2132-553-0x00000000073F0000-0x0000000007400000-memory.dmp

            Filesize

            64KB

          • memory/3668-310-0x0000000004200000-0x00000000045FD000-memory.dmp

            Filesize

            4.0MB

          • memory/3668-345-0x0000000004200000-0x00000000045FD000-memory.dmp

            Filesize

            4.0MB

          • memory/3668-1056-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/3668-415-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/3668-311-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/3668-666-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/4284-3-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/4284-2-0x00000000048D0000-0x00000000051BB000-memory.dmp

            Filesize

            8.9MB

          • memory/4284-20-0x00000000048D0000-0x00000000051BB000-memory.dmp

            Filesize

            8.9MB

          • memory/4284-69-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/4284-307-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/4284-1-0x00000000044C0000-0x00000000048C4000-memory.dmp

            Filesize

            4.0MB

          • memory/4284-11-0x00000000044C0000-0x00000000048C4000-memory.dmp

            Filesize

            4.0MB

          • memory/4284-308-0x0000000000400000-0x0000000002675000-memory.dmp

            Filesize

            34.5MB

          • memory/4344-78-0x0000000070A20000-0x0000000070A6B000-memory.dmp

            Filesize

            300KB

          • memory/4344-87-0x00000000099D0000-0x0000000009A75000-memory.dmp

            Filesize

            660KB

          • memory/4344-288-0x0000000009AC0000-0x0000000009AC8000-memory.dmp

            Filesize

            32KB

          • memory/4344-283-0x0000000009AE0000-0x0000000009AFA000-memory.dmp

            Filesize

            104KB

          • memory/4344-7-0x0000000073D10000-0x00000000743FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4344-6-0x0000000004540000-0x0000000004576000-memory.dmp

            Filesize

            216KB

          • memory/4344-158-0x0000000004530000-0x0000000004540000-memory.dmp

            Filesize

            64KB

          • memory/4344-8-0x0000000004530000-0x0000000004540000-memory.dmp

            Filesize

            64KB

          • memory/4344-9-0x0000000004530000-0x0000000004540000-memory.dmp

            Filesize

            64KB

          • memory/4344-10-0x0000000006C10000-0x0000000007238000-memory.dmp

            Filesize

            6.2MB

          • memory/4344-89-0x0000000009BE0000-0x0000000009C74000-memory.dmp

            Filesize

            592KB

          • memory/4344-12-0x0000000006BE0000-0x0000000006C02000-memory.dmp

            Filesize

            136KB

          • memory/4344-13-0x0000000007410000-0x0000000007476000-memory.dmp

            Filesize

            408KB

          • memory/4344-88-0x0000000004530000-0x0000000004540000-memory.dmp

            Filesize

            64KB

          • memory/4344-14-0x0000000007330000-0x0000000007396000-memory.dmp

            Filesize

            408KB

          • memory/4344-15-0x0000000007580000-0x00000000078D0000-memory.dmp

            Filesize

            3.3MB

          • memory/4344-16-0x00000000079F0000-0x0000000007A0C000-memory.dmp

            Filesize

            112KB

          • memory/4344-17-0x0000000007B20000-0x0000000007B6B000-memory.dmp

            Filesize

            300KB

          • memory/4344-37-0x0000000007E70000-0x0000000007EAC000-memory.dmp

            Filesize

            240KB

          • memory/4344-306-0x0000000073D10000-0x00000000743FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4344-82-0x0000000009970000-0x000000000998E000-memory.dmp

            Filesize

            120KB

          • memory/4344-81-0x0000000070A70000-0x0000000070DC0000-memory.dmp

            Filesize

            3.3MB

          • memory/4344-80-0x000000007F4C0000-0x000000007F4D0000-memory.dmp

            Filesize

            64KB

          • memory/4344-79-0x0000000073D10000-0x00000000743FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4344-68-0x0000000008C00000-0x0000000008C76000-memory.dmp

            Filesize

            472KB

          • memory/4344-77-0x0000000009990000-0x00000000099C3000-memory.dmp

            Filesize

            204KB

          • memory/4348-809-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4348-568-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4348-569-0x0000000007340000-0x0000000007350000-memory.dmp

            Filesize

            64KB

          • memory/4348-589-0x0000000070B40000-0x0000000070B8B000-memory.dmp

            Filesize

            300KB

          • memory/4348-590-0x0000000070B90000-0x0000000070EE0000-memory.dmp

            Filesize

            3.3MB

          • memory/4348-595-0x0000000007340000-0x0000000007350000-memory.dmp

            Filesize

            64KB

          • memory/4356-834-0x0000000070B90000-0x0000000070EE0000-memory.dmp

            Filesize

            3.3MB

          • memory/4356-812-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4356-832-0x0000000070B40000-0x0000000070B8B000-memory.dmp

            Filesize

            300KB

          • memory/4356-833-0x000000007F510000-0x000000007F520000-memory.dmp

            Filesize

            64KB

          • memory/4356-839-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

            Filesize

            64KB

          • memory/4356-1052-0x0000000073E10000-0x00000000744FE000-memory.dmp

            Filesize

            6.9MB

          • memory/4988-1064-0x0000000073D70000-0x000000007445E000-memory.dmp

            Filesize

            6.9MB