Analysis

  • max time kernel
    149s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-04-2024 22:27

General

  • Target

    42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe

  • Size

    4.2MB

  • MD5

    bd20d333b6629f29d517085fbc4b3c11

  • SHA1

    dc6cda1698101f26bb7d2668137113834198d7b4

  • SHA256

    42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343

  • SHA512

    cd391b75546b22e06dc2085048285f70364a7439362b19c96f2e369844a57819f37f49493a45a33ce0c9442567defd40ef45536c135bd42e81b0a46ef780dfef

  • SSDEEP

    98304:3amOmyh13YwSD+iffg9rOMOczucEEdNxQlfwo87Elwi0PG1t:3Ty8Jy4o9ecZxQhwo8IinPG1t

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 18 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 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.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Drops file in System32 directory 7 IoCs
  • 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.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 30 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe
    "C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1360
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2620
    • C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.exe
      "C:\Users\Admin\AppData\Local\Temp\42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343.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:2272
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2944
      • 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:1560
        • 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:3672
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3296
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2604
      • 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:4204
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4772
        • 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:2620
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:1792
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:224
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1560
          • 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:3652
          • 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:3104

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d4l1q5sl.4ql.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      281KB

      MD5

      d98e33b66343e7c96158444127a117f6

      SHA1

      bb716c5509a2bf345c6c1152f6e3e1452d39d50d

      SHA256

      5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

      SHA512

      705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      e81994e6fe3996b1326c1c591cef77c1

      SHA1

      32009de3a081fe5438c2aa681e6f0413c9bbc183

      SHA256

      608b0859c235ec5b009b991c8419ffc1795848a762021df96f46e42da0ffb524

      SHA512

      1b683e0f7b85f590459d1119aa31d61b39720c91f920b1db78aaf06091ca33fd2317da0b413ccf1a7c36b324fce4e34193759cfc920adff6367cc6ab4e39b50f

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      6bae6c1c06f358d6b28f3488f588c0fd

      SHA1

      dd5e46168f4674965db5080f2f981b29bb8394cd

      SHA256

      76ca9be82717362b08730aea4e7d115fed3265adb79e8ba309abee53c12fbc63

      SHA512

      3328a1a8fc96de2c36add836e24309150708b228b74bbaf5049e707d6a7ae17bce4830b2116a2ef8b33b6cfea3d5abf740ddad8366ed33b14fe0a5cdf29f5fdf

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      6d3fc7163b96ca620a15e59a1ce105ee

      SHA1

      45267774fe22e087fd3495eedced9e5ad5c36fc2

      SHA256

      ddb99c467234a3c7ef5ae9be59c61c197fb12f7880758e4f3db2804101be9324

      SHA512

      216cfc904cf7baa2317d4bf205b5b4b02aa50a548925015ae3d62a498ead12ec9929c9ad8432b83d865cc3d3090566841b12caa727bd4565d5341109af9d1cab

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      5c6171c02f75ff44362ec080df3864ca

      SHA1

      093d0c0e60fef54dfaf2dd9c27f638f23633009d

      SHA256

      14862e8c340d3be2b37d0091871e4e496b976f7def347bc916c73c5cd764e1f2

      SHA512

      8a7af7e2d0fef1fed24182615601e7360874ebe59bdc3201da206f872e98ad27d7cb3d07d4e36938ed613b5640c33437e4e5b4dfd83ba05115a3034ba67da46d

    • C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

      Filesize

      19KB

      MD5

      d8214354d5c0398930d1888c594c20fe

      SHA1

      a4d66ddcd7117bf9aaa12aea0a7896077a0c30b6

      SHA256

      252dbf47e30ef3b94e7e1e8e54d557ed601cd9ce8f934eb835a8e28d6737a7a8

      SHA512

      ceb488c0b2da1e475ab611b3be2b2879f7805723a0fe92866aab90366db5ec4e24703cff33e7f9c509939c96d97c2cb381ce9ef894112ab70d3f45f05b5f61e0

    • C:\Windows\rss\csrss.exe

      Filesize

      4.2MB

      MD5

      bd20d333b6629f29d517085fbc4b3c11

      SHA1

      dc6cda1698101f26bb7d2668137113834198d7b4

      SHA256

      42c71d5b6cfb50d5ac1ee6d78bd27ddaa24a35111887729eb8839e53ac88e343

      SHA512

      cd391b75546b22e06dc2085048285f70364a7439362b19c96f2e369844a57819f37f49493a45a33ce0c9442567defd40ef45536c135bd42e81b0a46ef780dfef

    • memory/224-188-0x0000000007D80000-0x0000000007D91000-memory.dmp

      Filesize

      68KB

    • memory/224-169-0x0000000006120000-0x0000000006474000-memory.dmp

      Filesize

      3.3MB

    • memory/224-175-0x0000000006DC0000-0x0000000006E0C000-memory.dmp

      Filesize

      304KB

    • memory/224-176-0x00000000705D0000-0x000000007061C000-memory.dmp

      Filesize

      304KB

    • memory/224-177-0x0000000070D60000-0x00000000710B4000-memory.dmp

      Filesize

      3.3MB

    • memory/224-187-0x00000000079A0000-0x0000000007A43000-memory.dmp

      Filesize

      652KB

    • memory/224-189-0x00000000065F0000-0x0000000006604000-memory.dmp

      Filesize

      80KB

    • memory/1360-80-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/1360-1-0x00000000020F0000-0x00000000024EB000-memory.dmp

      Filesize

      4.0MB

    • memory/1360-2-0x0000000003E90000-0x000000000477B000-memory.dmp

      Filesize

      8.9MB

    • memory/1360-3-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/1360-137-0x0000000003E90000-0x000000000477B000-memory.dmp

      Filesize

      8.9MB

    • memory/1360-136-0x00000000020F0000-0x00000000024EB000-memory.dmp

      Filesize

      4.0MB

    • memory/1560-202-0x0000000070D60000-0x00000000710B4000-memory.dmp

      Filesize

      3.3MB

    • memory/1560-201-0x00000000705D0000-0x000000007061C000-memory.dmp

      Filesize

      304KB

    • memory/2272-133-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/2604-119-0x0000000070830000-0x0000000070B84000-memory.dmp

      Filesize

      3.3MB

    • memory/2604-118-0x00000000706B0000-0x00000000706FC000-memory.dmp

      Filesize

      304KB

    • memory/2620-51-0x0000000007D40000-0x0000000007D5A000-memory.dmp

      Filesize

      104KB

    • memory/2620-28-0x000000007EF80000-0x000000007EF90000-memory.dmp

      Filesize

      64KB

    • memory/2620-47-0x0000000007D70000-0x0000000007E06000-memory.dmp

      Filesize

      600KB

    • memory/2620-48-0x0000000007C70000-0x0000000007C81000-memory.dmp

      Filesize

      68KB

    • memory/2620-49-0x0000000007CB0000-0x0000000007CBE000-memory.dmp

      Filesize

      56KB

    • memory/2620-50-0x0000000007CF0000-0x0000000007D04000-memory.dmp

      Filesize

      80KB

    • memory/2620-26-0x0000000007FB0000-0x000000000862A000-memory.dmp

      Filesize

      6.5MB

    • memory/2620-52-0x0000000007D30000-0x0000000007D38000-memory.dmp

      Filesize

      32KB

    • memory/2620-55-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2620-27-0x0000000007950000-0x000000000796A000-memory.dmp

      Filesize

      104KB

    • memory/2620-46-0x0000000007C60000-0x0000000007C6A000-memory.dmp

      Filesize

      40KB

    • memory/2620-29-0x0000000007B10000-0x0000000007B42000-memory.dmp

      Filesize

      200KB

    • memory/2620-30-0x00000000706B0000-0x00000000706FC000-memory.dmp

      Filesize

      304KB

    • memory/2620-4-0x0000000004FB0000-0x0000000004FE6000-memory.dmp

      Filesize

      216KB

    • memory/2620-31-0x0000000070830000-0x0000000070B84000-memory.dmp

      Filesize

      3.3MB

    • memory/2620-7-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2620-25-0x00000000078B0000-0x0000000007926000-memory.dmp

      Filesize

      472KB

    • memory/2620-6-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2620-24-0x0000000007700000-0x0000000007744000-memory.dmp

      Filesize

      272KB

    • memory/2620-5-0x0000000074810000-0x0000000074FC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2620-8-0x00000000056A0000-0x0000000005CC8000-memory.dmp

      Filesize

      6.2MB

    • memory/2620-23-0x00000000065B0000-0x00000000065FC000-memory.dmp

      Filesize

      304KB

    • memory/2620-45-0x0000000007B70000-0x0000000007C13000-memory.dmp

      Filesize

      652KB

    • memory/2620-42-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2620-22-0x0000000006580000-0x000000000659E000-memory.dmp

      Filesize

      120KB

    • memory/2620-43-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2620-44-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2620-41-0x0000000007B50000-0x0000000007B6E000-memory.dmp

      Filesize

      120KB

    • memory/2620-9-0x0000000005D10000-0x0000000005D32000-memory.dmp

      Filesize

      136KB

    • memory/2620-21-0x00000000060C0000-0x0000000006414000-memory.dmp

      Filesize

      3.3MB

    • memory/2620-10-0x0000000005DB0000-0x0000000005E16000-memory.dmp

      Filesize

      408KB

    • memory/2620-11-0x0000000005F50000-0x0000000005FB6000-memory.dmp

      Filesize

      408KB

    • memory/2944-81-0x0000000007530000-0x0000000007544000-memory.dmp

      Filesize

      80KB

    • memory/2944-66-0x0000000005A80000-0x0000000005DD4000-memory.dmp

      Filesize

      3.3MB

    • memory/2944-67-0x00000000706B0000-0x00000000706FC000-memory.dmp

      Filesize

      304KB

    • memory/2944-68-0x0000000070850000-0x0000000070BA4000-memory.dmp

      Filesize

      3.3MB

    • memory/2944-78-0x00000000071D0000-0x0000000007273000-memory.dmp

      Filesize

      652KB

    • memory/2944-79-0x00000000074E0000-0x00000000074F1000-memory.dmp

      Filesize

      68KB

    • memory/3296-94-0x0000000005570000-0x00000000058C4000-memory.dmp

      Filesize

      3.3MB

    • memory/3296-97-0x0000000070AA0000-0x0000000070DF4000-memory.dmp

      Filesize

      3.3MB

    • memory/3296-96-0x00000000706B0000-0x00000000706FC000-memory.dmp

      Filesize

      304KB

    • memory/4204-230-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-224-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-240-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-238-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-218-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-220-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-222-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-236-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-226-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-228-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-162-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-232-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4204-234-0x0000000000400000-0x0000000001DFB000-memory.dmp

      Filesize

      26.0MB

    • memory/4772-147-0x0000000005AC0000-0x0000000005E14000-memory.dmp

      Filesize

      3.3MB

    • memory/4772-150-0x0000000070E30000-0x0000000071184000-memory.dmp

      Filesize

      3.3MB

    • memory/4772-149-0x00000000706B0000-0x00000000706FC000-memory.dmp

      Filesize

      304KB