Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2023 15:44

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General

  • Target

    1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc.exe

  • Size

    4.1MB

  • MD5

    c176117c40b7581de17288ef73c8e049

  • SHA1

    18292a90eac77244e9c2c63472ae77e4cb915a8f

  • SHA256

    1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc

  • SHA512

    887fedd4f704fe094cbdc0cbf624d0b7eb0844a4bf9da73f60070a1e27af5be639572085192014d10547e820d1ead986db1b846fbed3eea8ab5a67aec21f453c

  • SSDEEP

    98304:l0DJDGd03aPrurdTQvyL5PCDrcYccpCmLPV92d:kiLPiOQCfcYcHmPV9o

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
  • Program crash 1 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\1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc.exe
    "C:\Users\Admin\AppData\Local\Temp\1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1256
    • C:\Users\Admin\AppData\Local\Temp\1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc.exe
      "C:\Users\Admin\AppData\Local\Temp\1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc.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:4296
      • 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:1788
        • 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:3712
      • 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:3376
        • 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:3628
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:5012
          • 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:2240
          • 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:2552
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 792
          3⤵
          • Program crash
          PID:3580
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4296 -ip 4296
      1⤵
        PID:4900

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Initial Access

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Modify Existing Service

      1
      T1031

      Registry Run Keys / Startup Folder

      1
      T1060

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Defense Evasion

      Modify Registry

      1
      T1112

      Credential Access

      Discovery

      Query Registry

      2
      T1012

      System Information Discovery

      1
      T1082

      Lateral Movement

      Collection

      Exfiltration

      Command and Control

      Web Service

      1
      T1102

      Impact

      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

        c176117c40b7581de17288ef73c8e049

        SHA1

        18292a90eac77244e9c2c63472ae77e4cb915a8f

        SHA256

        1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc

        SHA512

        887fedd4f704fe094cbdc0cbf624d0b7eb0844a4bf9da73f60070a1e27af5be639572085192014d10547e820d1ead986db1b846fbed3eea8ab5a67aec21f453c

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

        4.1MB

        MD5

        c176117c40b7581de17288ef73c8e049

        SHA1

        18292a90eac77244e9c2c63472ae77e4cb915a8f

        SHA256

        1f44ef5b4936c4e6200719723a024fa891b9c5ed15de1a224f6fc8c9675e08cc

        SHA512

        887fedd4f704fe094cbdc0cbf624d0b7eb0844a4bf9da73f60070a1e27af5be639572085192014d10547e820d1ead986db1b846fbed3eea8ab5a67aec21f453c

        Download Submit
      • memory/1256-135-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/1256-134-0x0000000005070000-0x00000000058E7000-memory.dmp
        Filesize

        8.5MB

        Download
      • memory/3376-151-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-157-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-149-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-150-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-160-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-152-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-153-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-154-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-155-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-156-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-148-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-158-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/3376-159-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download
      • memory/4296-141-0x0000000000400000-0x0000000002F48000-memory.dmp
        Filesize

        43.3MB

        Download