Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    135s
  • 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
    20/03/2023, 06:14

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General

  • Target

    509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a.exe

  • Size

    4.0MB

  • MD5

    ef2e1b2c6c95df87fde68c9fb91d6ffd

  • SHA1

    eca55342cdd5cfd2c57c2f6cfa6ece64adfb8bd0

  • SHA256

    509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a

  • SHA512

    70f174572791cc5819a2af8acdb9d1e8287341d9a4e9091cd3c625ba16ddb9c6c7eec4f54fb1fafbf03c26de1e16ed8a2bf25dd6d0d588e4b61643bb4b2d4399

  • SSDEEP

    98304:nDtNUJSmDZfPdmgo7mDndGnaWxvbjZ1oaFl0GSBfo:nDzUJSScBmDnd+aWxHkwtko

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkitupx

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 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
  • 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 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\509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a.exe
    "C:\Users\Admin\AppData\Local\Temp\509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3300
    • C:\Users\Admin\AppData\Local\Temp\509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a.exe
      "C:\Users\Admin\AppData\Local\Temp\509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a.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:848
      • 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:804
        • 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:4516
      • 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:1768
        • 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:4724
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3712
          • 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:5032
          • 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:4224
          • C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\f801950a962ddba14caaa44bf084b55c.exe
            4⤵
            • Executes dropped EXE
            PID:4856
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks /delete /tn "csrss" /f
              5⤵
                PID:2336
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks /delete /tn "ScheduledUpdate" /f
                5⤵
                  PID:1708
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 848 -s 820
              3⤵
              • Program crash
              PID:444
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 848 -ip 848
          1⤵
            PID:4052

          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\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

                  4.0MB

                  MD5

                  ef2e1b2c6c95df87fde68c9fb91d6ffd

                  SHA1

                  eca55342cdd5cfd2c57c2f6cfa6ece64adfb8bd0

                  SHA256

                  509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a

                  SHA512

                  70f174572791cc5819a2af8acdb9d1e8287341d9a4e9091cd3c625ba16ddb9c6c7eec4f54fb1fafbf03c26de1e16ed8a2bf25dd6d0d588e4b61643bb4b2d4399

                  Download Submit

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

                  4.0MB

                  MD5

                  ef2e1b2c6c95df87fde68c9fb91d6ffd

                  SHA1

                  eca55342cdd5cfd2c57c2f6cfa6ece64adfb8bd0

                  SHA256

                  509a70639186d5b4521ea173b613bc207055ca339e92c57f0c53289ea4a4039a

                  SHA512

                  70f174572791cc5819a2af8acdb9d1e8287341d9a4e9091cd3c625ba16ddb9c6c7eec4f54fb1fafbf03c26de1e16ed8a2bf25dd6d0d588e4b61643bb4b2d4399

                  Download Submit

                • memory/848-142-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-155-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-158-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-151-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-152-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-153-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-154-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-149-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-156-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-157-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-150-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-166-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/1768-163-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/3300-136-0x0000000002E50000-0x00000000036C7000-memory.dmp

                  Filesize

                  8.5MB

                  Download

                • memory/3300-134-0x0000000002E50000-0x00000000036C7000-memory.dmp

                  Filesize

                  8.5MB

                  Download

                • memory/3300-135-0x0000000000400000-0x0000000000C91000-memory.dmp

                  Filesize

                  8.6MB

                  Download

                • memory/4856-165-0x0000000000400000-0x0000000000C25000-memory.dmp

                  Filesize

                  8.1MB

                  Download

                • memory/4856-167-0x0000000000400000-0x0000000000C25000-memory.dmp

                  Filesize

                  8.1MB

                  Download

                • memory/4856-169-0x0000000000400000-0x0000000000C25000-memory.dmp

                  Filesize

                  8.1MB

                  Download