Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    28-01-2023 17:09

General

  • Target

    2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978.exe

  • Size

    4.1MB

  • MD5

    033ee0fb70bc80eac044689ad71900dc

  • SHA1

    bf57b292055b40f9753146c6cd3760cd1f36a4c4

  • SHA256

    2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978

  • SHA512

    e04523f33a6f247e1056d1d260a3f486ebe658acc95ec930add0075e211db63defddb41783f92cccf856c2192883d93fffe515bd80768f3104a8a964d335dcdf

  • SSDEEP

    98304:SOqXoLnq2a4kzk80+Jgz05f0n5vgckPLYUCi3dhMgyJVieN9MZIehaGh6EFur6Xl:S5Xinq3JIYJ40y5vVkPLNoVieN9MZPI2

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\2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978.exe
    "C:\Users\Admin\AppData\Local\Temp\2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2620
    • C:\Users\Admin\AppData\Local\Temp\2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978.exe
      "C:\Users\Admin\AppData\Local\Temp\2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978.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:2264
      • 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:4460
        • 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:4204
      • 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:5012
        • 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:60
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:372
          • 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:1476
          • 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:3300

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Disabling Security Tools

    2
    T1089

    Modify Registry

    3
    T1112

    Discovery

    Query Registry

    1
    T1012

    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

      033ee0fb70bc80eac044689ad71900dc

      SHA1

      bf57b292055b40f9753146c6cd3760cd1f36a4c4

      SHA256

      2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978

      SHA512

      e04523f33a6f247e1056d1d260a3f486ebe658acc95ec930add0075e211db63defddb41783f92cccf856c2192883d93fffe515bd80768f3104a8a964d335dcdf

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

      4.1MB

      MD5

      033ee0fb70bc80eac044689ad71900dc

      SHA1

      bf57b292055b40f9753146c6cd3760cd1f36a4c4

      SHA256

      2810f9fcf8a25ad34d4593a932f35ae546ed4113e1a2a5b98774e6ea76a67978

      SHA512

      e04523f33a6f247e1056d1d260a3f486ebe658acc95ec930add0075e211db63defddb41783f92cccf856c2192883d93fffe515bd80768f3104a8a964d335dcdf

    • memory/1476-375-0x0000000000000000-mapping.dmp
    • memory/2264-297-0x0000000002AC0000-0x0000000002EAD000-memory.dmp
      Filesize

      3.9MB

    • memory/2264-298-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/2264-305-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/2620-156-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-120-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-125-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-126-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-127-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-129-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-130-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-131-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-132-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-133-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-128-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-135-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-136-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-137-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-138-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-139-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-140-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-141-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-142-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-143-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-144-0x0000000002AF0000-0x0000000002EE4000-memory.dmp
      Filesize

      4.0MB

    • memory/2620-145-0x0000000002EF0000-0x0000000003767000-memory.dmp
      Filesize

      8.5MB

    • memory/2620-146-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/2620-147-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-148-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-149-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-150-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-151-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-152-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-153-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-154-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-155-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-123-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-157-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-158-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-159-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-161-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-124-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-178-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-163-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-164-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-166-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-165-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-167-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-168-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-169-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-170-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-171-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-172-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-173-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-174-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-175-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-176-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-177-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-162-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-179-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-180-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-181-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-182-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-183-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-184-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-185-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-186-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-243-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB

    • memory/2620-119-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-122-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-160-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/2620-121-0x0000000077770000-0x00000000778FE000-memory.dmp
      Filesize

      1.6MB

    • memory/4204-296-0x0000000000000000-mapping.dmp
    • memory/4460-295-0x0000000000000000-mapping.dmp
    • memory/5012-324-0x0000000003000000-0x00000000033EA000-memory.dmp
      Filesize

      3.9MB

    • memory/5012-300-0x0000000000000000-mapping.dmp
    • memory/5012-381-0x0000000003000000-0x00000000033EA000-memory.dmp
      Filesize

      3.9MB

    • memory/5012-382-0x0000000000400000-0x0000000000C91000-memory.dmp
      Filesize

      8.6MB