Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20220901-en
  • resource tags

    arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03-12-2022 12:22

General

  • Target

    746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe

  • Size

    4.2MB

  • MD5

    3bc8a54d35c7deda85f7d298b65f52f2

  • SHA1

    1803199de71f6829aff2147e75651bf7e98ee42f

  • SHA256

    746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c

  • SHA512

    db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a

  • SSDEEP

    98304:gOAEAD7buvr+VFtgghiT8Qpf9ryzx6ZuT3VP7Yi7AEWXldC:g1EADXkr+VFtliT8Qp1+zx6ZuZP7YiL3

Malware Config

Signatures

  • Glupteba

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

  • Windows security bypass 2 TTPs 7 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 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.

  • 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\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe
    "C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4940
    • C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.exe
      "C:\Users\Admin\AppData\Local\Temp\746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c.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:4260
      • 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:4664
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3304
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:844
          • 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:368
          • 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:3336
          • 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:3888
    • C:\Windows\system32\netsh.exe
      netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
      1⤵
      • Modifies Windows Firewall
      • Modifies data under HKEY_USERS
      PID:3920

    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

      4.2MB

      MD5

      3bc8a54d35c7deda85f7d298b65f52f2

      SHA1

      1803199de71f6829aff2147e75651bf7e98ee42f

      SHA256

      746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c

      SHA512

      db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      3bc8a54d35c7deda85f7d298b65f52f2

      SHA1

      1803199de71f6829aff2147e75651bf7e98ee42f

      SHA256

      746d77664f9b433b7930b1ec9ea191cad40f6020940899cee614faf5a749ac3c

      SHA512

      db9b068d8c9cc317e03e59a51274a60624f70d8a11652ca0a370c3a2b448cac9e259b766af1eef67c26dd0f1eaf66f44de08acb2abf6da1753c8d8ec69152d9a

    • memory/3304-299-0x0000000000000000-mapping.dmp

    • memory/3304-347-0x0000000001900000-0x0000000001CEA000-memory.dmp

      Filesize

      3.9MB

    • memory/3304-351-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

    • memory/3304-381-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

    • memory/3304-380-0x0000000001900000-0x0000000001CEA000-memory.dmp

      Filesize

      3.9MB

    • memory/3336-374-0x0000000000000000-mapping.dmp

    • memory/3920-297-0x0000000000000000-mapping.dmp

    • memory/4260-273-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

    • memory/4260-268-0x00000000012B0000-0x00000000016A5000-memory.dmp

      Filesize

      4.0MB

    • memory/4260-305-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

    • memory/4664-296-0x0000000000000000-mapping.dmp

    • memory/4940-158-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-166-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-132-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-133-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-135-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-136-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-137-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-138-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-139-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-140-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-141-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-142-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-144-0x0000000001250000-0x000000000163B000-memory.dmp

      Filesize

      3.9MB

    • memory/4940-143-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-145-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-146-0x0000000001640000-0x0000000001EB7000-memory.dmp

      Filesize

      8.5MB

    • memory/4940-149-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB

    • memory/4940-148-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-150-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-147-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-152-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-151-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-154-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-155-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-153-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-130-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-160-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-161-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-159-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-162-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-163-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-164-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-156-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-131-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-167-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-169-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-170-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-168-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-165-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-157-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-171-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-172-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-173-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-175-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-178-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-180-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-179-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-177-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-181-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-176-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-174-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-182-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-186-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-129-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-128-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-127-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-126-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-125-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-124-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-123-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-122-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-121-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-120-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-187-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-185-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-184-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-183-0x0000000077D50000-0x0000000077EDE000-memory.dmp

      Filesize

      1.6MB

    • memory/4940-245-0x0000000000400000-0x0000000000C91000-memory.dmp

      Filesize

      8.6MB