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
    24/04/2023, 09:42

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General

  • Target

    6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede.exe

  • Size

    4.2MB

  • MD5

    1cc188217986906a85c9d6c7d6a91a2d

  • SHA1

    f7a8ea23c64d543c55cfc13b21885a0467c783d0

  • SHA256

    6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede

  • SHA512

    43f664ac28f5c11c57b6f84da3a2d7e38b01d2edf9b2bf29b19f47266a21813b3958c3881870246a68b99fc9a71a87c0b75faeff371395664e7942e2dbfd6c58

  • SSDEEP

    98304:Wg9GSC+N9hD86X4JcvWCJ6tk+6TgQgPNZ5uO2L6oxIasCJ:WOG7c9hDVIJeLJNgFuO2L6oxIXCJ

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 18 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\6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede.exe
    "C:\Users\Admin\AppData\Local\Temp\6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:452
    • C:\Users\Admin\AppData\Local\Temp\6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede.exe
      "C:\Users\Admin\AppData\Local\Temp\6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede.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:4540
      • 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:4600
        • 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:1792
      • 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:3852
        • 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:4572
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:4816
          • 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:1308
          • 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:3964

    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

      4.2MB

      MD5

      1cc188217986906a85c9d6c7d6a91a2d

      SHA1

      f7a8ea23c64d543c55cfc13b21885a0467c783d0

      SHA256

      6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede

      SHA512

      43f664ac28f5c11c57b6f84da3a2d7e38b01d2edf9b2bf29b19f47266a21813b3958c3881870246a68b99fc9a71a87c0b75faeff371395664e7942e2dbfd6c58

      Download Submit

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

      4.2MB

      MD5

      1cc188217986906a85c9d6c7d6a91a2d

      SHA1

      f7a8ea23c64d543c55cfc13b21885a0467c783d0

      SHA256

      6d96314383f79d1786e5f25317d72d0aab865f95cf5cc4a2e265c4da93fd7ede

      SHA512

      43f664ac28f5c11c57b6f84da3a2d7e38b01d2edf9b2bf29b19f47266a21813b3958c3881870246a68b99fc9a71a87c0b75faeff371395664e7942e2dbfd6c58

      Download Submit

    • memory/452-135-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/452-134-0x0000000002E30000-0x00000000036A7000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/3852-156-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-154-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-149-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-150-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-151-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-152-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-153-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-162-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-155-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-161-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-157-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-158-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-159-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/3852-160-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download

    • memory/4540-137-0x0000000002DF0000-0x0000000003667000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/4540-142-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

      Download