Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/03/2023, 13:52

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General

  • Target

    865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091.exe

  • Size

    4.0MB

  • MD5

    85aea77ea1c560ef36eee13ae664c7fe

  • SHA1

    615be0591dff2f458614f7ded0f2ee11cd3ce2d7

  • SHA256

    865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091

  • SHA512

    ae836793dfdb249efda80161807f6a7e31428b2f7ec2dd6528290048c73602e4310008cf2cb0a471b2fbe76b3b5970fef742cc8eca52ceecb35a1ad018f03fb7

  • SSDEEP

    98304:Yu/dlCxi6PLPzwvEETgd6gdCF1fDxqiHL3/uRgMw1LSMywNMv:z/ypjMv/VyCzf1rbadwnylv

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkitupx

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 18 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 3 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

    rootkitevasion
  • 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.

    persistence
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 12 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091.exe
    "C:\Users\Admin\AppData\Local\Temp\865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3816
    • C:\Users\Admin\AppData\Local\Temp\865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091.exe
      "C:\Users\Admin\AppData\Local\Temp\865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091.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:4120
      • 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:1968
        • 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:3544
      • 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:4864
        • 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:3452
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4604
          • 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:4288
          • 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:2756
          • C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            4⤵
            • Executes dropped EXE
            PID:5116
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks /delete /tn "csrss" /f
              5⤵
                PID:4788
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /delete /tn "ScheduledUpdate" /f
                5⤵
                  PID:2840

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
                Filesize

                3.2MB

                MD5

                f801950a962ddba14caaa44bf084b55c

                SHA1

                7cadc9076121297428442785536ba0df2d4ae996

                SHA256

                c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

                SHA512

                4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

                Download Submit

              • C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
                Filesize

                3.2MB

                MD5

                f801950a962ddba14caaa44bf084b55c

                SHA1

                7cadc9076121297428442785536ba0df2d4ae996

                SHA256

                c3946ec89e15b24b743c46f9acacb58cff47da63f3ce2799d71ed90496b8891f

                SHA512

                4183bc76bdc84fb779e2e573d9a63d7de47096b63b945f9e335bee95ae28eb208f5ee15f6501ac59623b97c5b77f3455ca313512e7d9803e1704ae22a52459c5

                Download Submit

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

                281KB

                MD5

                d98e33b66343e7c96158444127a117f6

                SHA1

                bb716c5509a2bf345c6c1152f6e3e1452d39d50d

                SHA256

                5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

                SHA512

                705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

                Download Submit

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

                281KB

                MD5

                d98e33b66343e7c96158444127a117f6

                SHA1

                bb716c5509a2bf345c6c1152f6e3e1452d39d50d

                SHA256

                5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

                SHA512

                705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

                Download Submit

              • C:\Windows\rss\csrss.exe
                Filesize

                4.0MB

                MD5

                85aea77ea1c560ef36eee13ae664c7fe

                SHA1

                615be0591dff2f458614f7ded0f2ee11cd3ce2d7

                SHA256

                865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091

                SHA512

                ae836793dfdb249efda80161807f6a7e31428b2f7ec2dd6528290048c73602e4310008cf2cb0a471b2fbe76b3b5970fef742cc8eca52ceecb35a1ad018f03fb7

                Download Submit

              • C:\Windows\rss\csrss.exe
                Filesize

                4.0MB

                MD5

                85aea77ea1c560ef36eee13ae664c7fe

                SHA1

                615be0591dff2f458614f7ded0f2ee11cd3ce2d7

                SHA256

                865767e639e9349c32251fe79c601dd34923200ba5be98067b497e0f4b1a4091

                SHA512

                ae836793dfdb249efda80161807f6a7e31428b2f7ec2dd6528290048c73602e4310008cf2cb0a471b2fbe76b3b5970fef742cc8eca52ceecb35a1ad018f03fb7

                Download Submit

              • memory/3816-134-0x0000000002DE0000-0x0000000003657000-memory.dmp

                Filesize

                8.5MB

                Download

              • memory/3816-135-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4120-141-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-153-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-157-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-152-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-150-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-154-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-155-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-156-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-151-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-158-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-159-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-160-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-161-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-149-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/4864-143-0x0000000003200000-0x0000000003A77000-memory.dmp

                Filesize

                8.5MB

                Download

              • memory/4864-168-0x0000000000400000-0x0000000000C91000-memory.dmp

                Filesize

                8.6MB

                Download

              • memory/5116-167-0x0000000000400000-0x0000000000C25000-memory.dmp

                Filesize

                8.1MB

                Download