Analysis

  • max time kernel
    153s
  • max time network
    155s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    05/02/2023, 09:53

General

  • Target

    2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065.exe

  • Size

    4.1MB

  • MD5

    c64af95c56cc3430c9b1aae679786e43

  • SHA1

    a34ef808918b5e80d0b1bea0974edef98ce7c40d

  • SHA256

    2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065

  • SHA512

    2819cb61ae7ed16437fb5eb0a0366d278661184236f4402721f02da89acad27b7da78744572ebd63c20d2eb685c288b19a07018c3e3ad7dc01734d701466fb82

  • SSDEEP

    98304:wKkFVqJRUD4yKVxLziwc8rm7PLVR0gw3MaW3jkHpIr5+O+Ra:wKdXUD4F1mw5rMADFW3jkjlk

Malware Config

Signatures

  • Glupteba

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

  • Windows security bypass 2 TTPs 7 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065.exe
    "C:\Users\Admin\AppData\Local\Temp\2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065.exe
      "C:\Users\Admin\AppData\Local\Temp\2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065.exe"
      2⤵
      • Windows security bypass
      • Windows security modification
      • Adds Run key to start application
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2316
      • 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:3944
        • 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
          • Modifies data under HKEY_USERS
          PID:5060
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:5100
        • 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:1428
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1588
          • 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:208
          • 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:2896

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

            Filesize

            281KB

            MD5

            d98e33b66343e7c96158444127a117f6

            SHA1

            bb716c5509a2bf345c6c1152f6e3e1452d39d50d

            SHA256

            5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

            SHA512

            705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

            Filesize

            281KB

            MD5

            d98e33b66343e7c96158444127a117f6

            SHA1

            bb716c5509a2bf345c6c1152f6e3e1452d39d50d

            SHA256

            5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

            SHA512

            705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            c64af95c56cc3430c9b1aae679786e43

            SHA1

            a34ef808918b5e80d0b1bea0974edef98ce7c40d

            SHA256

            2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065

            SHA512

            2819cb61ae7ed16437fb5eb0a0366d278661184236f4402721f02da89acad27b7da78744572ebd63c20d2eb685c288b19a07018c3e3ad7dc01734d701466fb82

          • C:\Windows\rss\csrss.exe

            Filesize

            4.1MB

            MD5

            c64af95c56cc3430c9b1aae679786e43

            SHA1

            a34ef808918b5e80d0b1bea0974edef98ce7c40d

            SHA256

            2352db3324179873f94001e86556f0428bdff7b384342f2af7ac94d34f305065

            SHA512

            2819cb61ae7ed16437fb5eb0a0366d278661184236f4402721f02da89acad27b7da78744572ebd63c20d2eb685c288b19a07018c3e3ad7dc01734d701466fb82

          • memory/2316-259-0x0000000002A60000-0x0000000002E59000-memory.dmp

            Filesize

            4.0MB

          • memory/2316-263-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

          • memory/2316-301-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

          • memory/4724-152-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-167-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-122-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-123-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-124-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-125-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-126-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-127-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-128-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-129-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-157-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-132-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-133-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-134-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-135-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-136-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-137-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-138-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-140-0x0000000002B10000-0x0000000002F09000-memory.dmp

            Filesize

            4.0MB

          • memory/4724-139-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-141-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-142-0x0000000002F10000-0x0000000003787000-memory.dmp

            Filesize

            8.5MB

          • memory/4724-143-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

          • memory/4724-144-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-145-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-146-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-147-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-148-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-149-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-150-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-151-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-120-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-154-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-153-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-159-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-155-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-130-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-121-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-156-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-160-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-161-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-162-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-163-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-164-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-165-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-166-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-158-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-168-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-169-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-170-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-171-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-172-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-173-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-174-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-176-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-177-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-178-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-179-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-175-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-180-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-181-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-182-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-183-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-240-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

          • memory/4724-119-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-116-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-117-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/4724-118-0x0000000076FB0000-0x000000007713E000-memory.dmp

            Filesize

            1.6MB

          • memory/5100-343-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB

          • memory/5100-338-0x0000000002E00000-0x00000000031EA000-memory.dmp

            Filesize

            3.9MB

          • memory/5100-379-0x0000000002E00000-0x00000000031EA000-memory.dmp

            Filesize

            3.9MB

          • memory/5100-380-0x0000000000400000-0x0000000000C91000-memory.dmp

            Filesize

            8.6MB