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Overview

overview

10

Static

static

1

dridex

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/03/2023, 08:07

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General

  • Target

    04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab.exe

  • Size

    4.1MB

  • MD5

    ab2decb1021f020c883da27ebbcce62d

  • SHA1

    bed3fcd5536da95a97749d7c3017900cb8bb6947

  • SHA256

    04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab

  • SHA512

    86be7df00243fff90b8ba08d8c21082d50a29df23f2adf1144fe76352fa18ccc8dc8135178da83ac12a052d6bac1bf53cc420d4162bed9c538fc6c8359a8ff80

  • SSDEEP

    98304:9fxIObgGKYbG9eLPUr0Mrrx6xvF/wVcAdC09q:9xAGK9CUr0Mfx0vwA0Y

Score
10/10
gluptebadiscoverydropperevasionloaderpersistencerootkit

Malware Config

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 17 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
  • 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\04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab.exe
    "C:\Users\Admin\AppData\Local\Temp\04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5056
    • C:\Users\Admin\AppData\Local\Temp\04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab.exe
      "C:\Users\Admin\AppData\Local\Temp\04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab.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:3692
      • 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:4560
        • 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:1648
      • 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:2756
        • 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:348
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:212
          • 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:992
          • 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:2984

    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

      ab2decb1021f020c883da27ebbcce62d

      SHA1

      bed3fcd5536da95a97749d7c3017900cb8bb6947

      SHA256

      04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab

      SHA512

      86be7df00243fff90b8ba08d8c21082d50a29df23f2adf1144fe76352fa18ccc8dc8135178da83ac12a052d6bac1bf53cc420d4162bed9c538fc6c8359a8ff80

      Download Submit

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

      4.1MB

      MD5

      ab2decb1021f020c883da27ebbcce62d

      SHA1

      bed3fcd5536da95a97749d7c3017900cb8bb6947

      SHA256

      04077f536d5f0997897dfc4d8d4a705a98aa1eb7d2cced68058f25b048d9f2ab

      SHA512

      86be7df00243fff90b8ba08d8c21082d50a29df23f2adf1144fe76352fa18ccc8dc8135178da83ac12a052d6bac1bf53cc420d4162bed9c538fc6c8359a8ff80

      Download Submit

    • memory/2756-151-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-154-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-161-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-148-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-149-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-150-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-160-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-152-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-153-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-159-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-155-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-156-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-157-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/2756-158-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/3692-140-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/5056-134-0x00000000031B0000-0x0000000003A27000-memory.dmp

      Filesize

      8.5MB

      Download

    • memory/5056-135-0x0000000000400000-0x0000000000F72000-memory.dmp

      Filesize

      11.4MB

      Download