Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

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

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/04/2023, 11:22

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General

  • Target

    8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0.exe

  • Size

    4.1MB

  • MD5

    9fdfcb6962c33d67d939c6d349149cb4

  • SHA1

    a4183a567f89ea85658987049b79e298943ab553

  • SHA256

    8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0

  • SHA512

    90091365ee1286426f168438bf25cb884d7dc794dde15dcaf8f201e0f5a41bd5e3f45e0b27c80b0f287ecfcac0362c3cfcd072cf4b78f057dbd963388e7388a1

  • SSDEEP

    98304:O0SY1PegW836qwyWHkK5H+KZvk60fwQct4QWdmg3:hSY1P/7KhHk29ZvX04QWWdj

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 16 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\8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0.exe
    "C:\Users\Admin\AppData\Local\Temp\8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:636
    • C:\Users\Admin\AppData\Local\Temp\8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0.exe
      "C:\Users\Admin\AppData\Local\Temp\8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0.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:220
      • 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:4180
        • 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:620
      • 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:2560
        • 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:3732
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4700
          • 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:4476
          • 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:1156

    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

      9fdfcb6962c33d67d939c6d349149cb4

      SHA1

      a4183a567f89ea85658987049b79e298943ab553

      SHA256

      8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0

      SHA512

      90091365ee1286426f168438bf25cb884d7dc794dde15dcaf8f201e0f5a41bd5e3f45e0b27c80b0f287ecfcac0362c3cfcd072cf4b78f057dbd963388e7388a1

      Download Submit

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

      4.1MB

      MD5

      9fdfcb6962c33d67d939c6d349149cb4

      SHA1

      a4183a567f89ea85658987049b79e298943ab553

      SHA256

      8db8ecf4f9bfd87867cbea378018820ffdf72e4433bbaa6b6935584a7c6047f0

      SHA512

      90091365ee1286426f168438bf25cb884d7dc794dde15dcaf8f201e0f5a41bd5e3f45e0b27c80b0f287ecfcac0362c3cfcd072cf4b78f057dbd963388e7388a1

      Download Submit

    • memory/220-141-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/636-135-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/636-134-0x00000000052C0000-0x0000000005B37000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/2560-151-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-149-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-150-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-145-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-152-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-153-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-154-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-155-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-156-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-157-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-158-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-159-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download

    • memory/2560-160-0x0000000000400000-0x0000000002F7A000-memory.dmp

      Filesize

      43.5MB

      Download