Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    128s
  • max time network
    153s
  • 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 22:07

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General

  • Target

    a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c.exe

  • Size

    4.1MB

  • MD5

    42fc788c2f786fefa1f3140b90c122e7

  • SHA1

    f3f090730757f2c4170f36ebcd6f77f3d07aeaa1

  • SHA256

    a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c

  • SHA512

    a12628fbabc420c8c761f39915c8c5021bde05c441363a5334a662f6f4ca15f713dd4059afc2acda5bbc3f96341499bb80a42f6a29ba72e179e604680e7d3ee5

  • SSDEEP

    98304:kFng4kWf5poWL25Runw1R8jHNLlC24QMGK/OCDJwd7/AG8/T:7y7oWL25UnwojVlCpTV2CDyd7IH

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkitupx

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 14 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Executes dropped EXE 3 IoCs
  • UPX packed file 5 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\a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c.exe
    "C:\Users\Admin\AppData\Local\Temp\a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4656
    • C:\Users\Admin\AppData\Local\Temp\a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c.exe
      "C:\Users\Admin\AppData\Local\Temp\a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c.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:3032
      • 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:1936
        • 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:2592
      • 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:4604
        • 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:408
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1724
          • 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:216
          • 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
          • C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            4⤵
            • Executes dropped EXE
            PID:3456
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks /delete /tn "csrss" /f
              5⤵
                PID:1068
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /delete /tn "ScheduledUpdate" /f
                5⤵
                  PID:4868

        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

        Impact

        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\NtQuerySystemInformationHook.dll
          Filesize

          99KB

          MD5

          09031a062610d77d685c9934318b4170

          SHA1

          880f744184e7774f3d14c1bb857e21cc7fe89a6d

          SHA256

          778bd69af403df3c4e074c31b3850d71bf0e64524bea4272a802ca9520b379dd

          SHA512

          9a276e1f0f55d35f2bf38eb093464f7065bdd30a660e6d1c62eed5e76d1fb2201567b89d9ae65d2d89dc99b142159e36fb73be8d5e08252a975d50544a7cda27

          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

          4.1MB

          MD5

          42fc788c2f786fefa1f3140b90c122e7

          SHA1

          f3f090730757f2c4170f36ebcd6f77f3d07aeaa1

          SHA256

          a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c

          SHA512

          a12628fbabc420c8c761f39915c8c5021bde05c441363a5334a662f6f4ca15f713dd4059afc2acda5bbc3f96341499bb80a42f6a29ba72e179e604680e7d3ee5

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

          4.1MB

          MD5

          42fc788c2f786fefa1f3140b90c122e7

          SHA1

          f3f090730757f2c4170f36ebcd6f77f3d07aeaa1

          SHA256

          a39ef10aa1314462d43d64352fac6ee69f5aa5a7a9ac6438753f065d52acd14c

          SHA512

          a12628fbabc420c8c761f39915c8c5021bde05c441363a5334a662f6f4ca15f713dd4059afc2acda5bbc3f96341499bb80a42f6a29ba72e179e604680e7d3ee5

          Download Submit
        • memory/3032-141-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/3456-168-0x0000000000400000-0x0000000000C25000-memory.dmp
          Filesize

          8.1MB

          Download
        • memory/3456-166-0x0000000000400000-0x0000000000C25000-memory.dmp
          Filesize

          8.1MB

          Download
        • memory/3456-165-0x0000000000400000-0x0000000000C25000-memory.dmp
          Filesize

          8.1MB

          Download
        • memory/4604-150-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-153-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-154-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-155-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-156-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-157-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-152-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-151-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-163-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-149-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4604-148-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4656-135-0x0000000000400000-0x0000000002F48000-memory.dmp
          Filesize

          43.3MB

          Download
        • memory/4656-134-0x0000000005260000-0x0000000005AD7000-memory.dmp
          Filesize

          8.5MB

          Download