Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    153s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/04/2023, 04:09

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General

  • Target

    3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392.exe

  • Size

    4.1MB

  • MD5

    34076a8a3ddfce848adfe73a74e6f107

  • SHA1

    94a8a5251bfd6cef2a5579ba637375da42cadf3d

  • SHA256

    3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392

  • SHA512

    4a56cdc02a39e8db20f63ecc412785a84dbf225c36fc2b3a3bd3dbb1bed51a8c9b8cfe5ebdad429edb3f845455dfb1677441ef4aabc25c9cba072b3215847fdb

  • SSDEEP

    98304:Y5v3ZravfeDmHhQ4j/gYIOaYbScCaEvPLU+vbl7:Y5vJray2Q/FdYOcCJvTUObl7

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 17 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 2 IoCs
  • 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
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 9 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\3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392.exe
    "C:\Users\Admin\AppData\Local\Temp\3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4872
    • C:\Users\Admin\AppData\Local\Temp\3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392.exe
      "C:\Users\Admin\AppData\Local\Temp\3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392.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:432
      • 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:2600
        • 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:2588
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Manipulates WinMonFS driver.
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5100
        • 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:4400
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3792
          • 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:2656
          • 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:4740

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • 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

            4.1MB

            MD5

            34076a8a3ddfce848adfe73a74e6f107

            SHA1

            94a8a5251bfd6cef2a5579ba637375da42cadf3d

            SHA256

            3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392

            SHA512

            4a56cdc02a39e8db20f63ecc412785a84dbf225c36fc2b3a3bd3dbb1bed51a8c9b8cfe5ebdad429edb3f845455dfb1677441ef4aabc25c9cba072b3215847fdb

            Download Submit

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

            4.1MB

            MD5

            34076a8a3ddfce848adfe73a74e6f107

            SHA1

            94a8a5251bfd6cef2a5579ba637375da42cadf3d

            SHA256

            3ee5fec8f65f9065878e1ca88f5308ef6b6f514ce4ff4b5ad474697ee0da8392

            SHA512

            4a56cdc02a39e8db20f63ecc412785a84dbf225c36fc2b3a3bd3dbb1bed51a8c9b8cfe5ebdad429edb3f845455dfb1677441ef4aabc25c9cba072b3215847fdb

            Download Submit

          • memory/432-141-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/4872-134-0x0000000005210000-0x0000000005A87000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/4872-135-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/4872-137-0x0000000005210000-0x0000000005A87000-memory.dmp

            Filesize

            8.5MB

            Download

          • memory/5100-151-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-150-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-149-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-152-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-153-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-154-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-155-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-156-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-157-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-158-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-159-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-160-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download

          • memory/5100-161-0x0000000000400000-0x0000000002F7A000-memory.dmp

            Filesize

            43.5MB

            Download