Overview

overview

10

Static

static

a52db86706...86.exe

windows7-x64

10

a52db86706...86.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/10/2022, 01:22

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General

  • Target

    a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486.exe

  • Size

    4.5MB

  • MD5

    25d6ac72df2186b5c23c5879f8b55475

  • SHA1

    242b0455a1f597e900bfacf3e299b62a6ac09356

  • SHA256

    a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486

  • SHA512

    573718fb83535bcfd6bba4bf66babcf9c3ac6ec2e8c170c1ebcae90404e20a3a1584fac5774ce65abaf63fc9802f19f05c8d11b7045188b7dd5bdf88e93e03d7

  • SSDEEP

    98304:MbvBgLfeZsWg5tKVXl293rYvV1chdJOv+M7gGx2ph3HE7XLnNiTX58:kG2ZiaMJrY91chWvB7gGxqh4QTX

Score
10/10
gluptebametasploitbackdoordiscoverydropperevasionloaderpersistencetrojan

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

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

    loaderdropperglupteba
  • Glupteba payload 6 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    trojanbackdoormetasploit
  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Adds Run key to start application 2 TTPs 1 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
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486.exe
    "C:\Users\Admin\AppData\Local\Temp\a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3640
    • C:\Users\Admin\AppData\Local\Temp\a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486.exe
      "C:\Users\Admin\AppData\Local\Temp\a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486.exe"
      2⤵
      • Adds Run key to start application
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1124
      • 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:3988
        • 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:4404
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe ""
        3⤵
        • Executes dropped EXE
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1116
        • 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:2756
        • 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:4628
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 800
      2⤵
      • Program crash
      PID:2792
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
    1⤵
    • Suspicious use of NtCreateUserProcessOtherParentProcess
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3096
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3640 -ip 3640
    1⤵
      PID:2364

    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

            4.5MB

            MD5

            25d6ac72df2186b5c23c5879f8b55475

            SHA1

            242b0455a1f597e900bfacf3e299b62a6ac09356

            SHA256

            a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486

            SHA512

            573718fb83535bcfd6bba4bf66babcf9c3ac6ec2e8c170c1ebcae90404e20a3a1584fac5774ce65abaf63fc9802f19f05c8d11b7045188b7dd5bdf88e93e03d7

            Download Submit

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

            4.5MB

            MD5

            25d6ac72df2186b5c23c5879f8b55475

            SHA1

            242b0455a1f597e900bfacf3e299b62a6ac09356

            SHA256

            a52db8670636b646e9de6ae12c82aa4be8186fcead18cb342a52eedc9da42486

            SHA512

            573718fb83535bcfd6bba4bf66babcf9c3ac6ec2e8c170c1ebcae90404e20a3a1584fac5774ce65abaf63fc9802f19f05c8d11b7045188b7dd5bdf88e93e03d7

            Download Submit

          • memory/1116-146-0x0000000000400000-0x0000000000D41000-memory.dmp

            Filesize

            9.3MB

            Download

          • memory/1116-145-0x0000000002F00000-0x000000000333C000-memory.dmp

            Filesize

            4.2MB

            Download

          • memory/1124-137-0x0000000002A94000-0x0000000002ED0000-memory.dmp

            Filesize

            4.2MB

            Download

          • memory/1124-138-0x0000000000400000-0x0000000000D41000-memory.dmp

            Filesize

            9.3MB

            Download

          • memory/1124-144-0x0000000000400000-0x0000000000D41000-memory.dmp

            Filesize

            9.3MB

            Download

          • memory/3640-136-0x0000000000400000-0x0000000000D41000-memory.dmp

            Filesize

            9.3MB

            Download

          • memory/3640-132-0x0000000002D01000-0x000000000313D000-memory.dmp

            Filesize

            4.2MB

            Download

          • memory/3640-134-0x0000000000400000-0x0000000000D41000-memory.dmp

            Filesize

            9.3MB

            Download

          • memory/3640-133-0x0000000003140000-0x0000000003A66000-memory.dmp

            Filesize

            9.1MB

            Download