Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-05-2024 05:29

General

  • Target

    b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770.exe

  • Size

    4.1MB

  • MD5

    4c13a7b9fa15748f918c7ebc8692feb7

  • SHA1

    a83a2575e3a1a16266e9ce27832a1850347aeb74

  • SHA256

    b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770

  • SHA512

    bcf0be98fc76abeec8989bd71251a3f95708fc1007b4a0518b2e20b74c2c7d1b8448040762609cd80261871bc1565c9e6b62342b77b235fc3bbe4d9a4a81dc11

  • SSDEEP

    98304:lH+PiUxpnK5pcCD6RLXH4DRMjOnEmJ5mWZ44js55cU5wvI2b:lH+PiSfw6Rz4ejOEAZ44S5J5ww2b

Malware Config

Signatures

  • Glupteba

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

  • Glupteba payload 19 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

    Using powershell.exe command.

  • Program crash 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\b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770.exe
    "C:\Users\Admin\AppData\Local\Temp\b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell -nologo -noprofile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
    • C:\Users\Admin\AppData\Local\Temp\b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770.exe
      "C:\Users\Admin\AppData\Local\Temp\b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770.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:1404
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3504
      • 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:4868
        • 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:1360
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4508
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -nologo -noprofile
        3⤵
        • Drops file in System32 directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2028
      • 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:780
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell -nologo -noprofile
          4⤵
          • Drops file in System32 directory
          • Command and Scripting Interpreter: PowerShell
          • Modifies data under HKEY_USERS
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4152
        • 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:2580
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:3348
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1384
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            powershell -nologo -noprofile
            4⤵
            • Drops file in System32 directory
            • Command and Scripting Interpreter: PowerShell
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4044
          • 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:2432
          • 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:3588
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1404 -s 736
          3⤵
          • Program crash
          PID:632
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 900
        2⤵
        • Program crash
        PID:4272
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 748 -ip 748
      1⤵
        PID:780
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1404 -ip 1404
        1⤵
          PID:5036

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iqeczbit.bxa.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

          4aa90425972cdf2a3d71c4a9b9593f8d

          SHA1

          0961ad3695a2f854164bf9af3d41797ddc755b26

          SHA256

          d2c9f41b61afbf4db2304056563ad1601b3e86c08bc82794d3f2e605f6ae8874

          SHA512

          abd0f5624e1d7b3ab515400ea25738aa5cdd81bb301ed072dbc500af4160c6e5ad5908f6d785a434a9776d974c70725b47c6ea6ceaf3ccc831c69f250bac9fa4

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

          Filesize

          19KB

          MD5

          e11dd4a9cfd286525665e3560159723a

          SHA1

          0f5c091e8305286739a51a09940cdb379d873b73

          SHA256

          a68f03c9d8f7c12fe04959d911ac879e0fa13a2667070e3ff8259750b0e4871d

          SHA512

          db56e068b90ebdd4c0ff7b42804926bf575249d5a6398940cc00f0d22d1d0eb113a9991d58a093a6398ba83e315af8cff427ec83bcada944fa960700e14c30d2

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

          Filesize

          19KB

          MD5

          f96598cd3687ec485f9510c252b0b127

          SHA1

          5552db535dfdd02e387462a04c08c1ef562709d9

          SHA256

          4103f3c263964488bf71c7e07df994469388953289ea0f30fa40b12b2918fe3b

          SHA512

          7db028231f0cab6de3e03e0e177f7800449ba2e6604b71140bcf5cfee1010c16e2c8a313eee117b306a2d3b95670cf2cf0ade59c2d5d8dd82bc7f7bafe478dcb

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

          Filesize

          19KB

          MD5

          46558790c529962121d9174ec2c3564c

          SHA1

          a5095c8a6e7874f61625d93125e45c12f18f1649

          SHA256

          5db6263825b61b0c1a6da669489617ee01f9bb1cf9229f87be8f7dc471a180ce

          SHA512

          50abcb25b38be8d3868ff29ca6103b5f3e7a4e61f7e5e061abb8ca1e8ba881ebe797302add4b98b3ddaa2e78790f730cc004967bcf0739ba97da5e91a6cc0e43

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

          Filesize

          19KB

          MD5

          5a9f44812f24d8a474bd221f6a4a4c75

          SHA1

          a8909ac2be47c56fbfb69579712134d3f672a802

          SHA256

          c104bcfabb10a0ab73af49b93778b28381b344fb137b55b701b5fdc858c574e9

          SHA512

          512d5a35a4f7f2b79d5844cb3974c726e4763f80ffd8bce284011bc4b206b3a44f3fc55479500c8b16fe5d87c871041dc4776d59e53d020c20c3f36cbb187722

        • C:\Windows\rss\csrss.exe

          Filesize

          4.1MB

          MD5

          4c13a7b9fa15748f918c7ebc8692feb7

          SHA1

          a83a2575e3a1a16266e9ce27832a1850347aeb74

          SHA256

          b92d002fb2ed3ae2ddb1c207f44917156bae55c032589abbcbd1e63bd1d2d770

          SHA512

          bcf0be98fc76abeec8989bd71251a3f95708fc1007b4a0518b2e20b74c2c7d1b8448040762609cd80261871bc1565c9e6b62342b77b235fc3bbe4d9a4a81dc11

        • memory/748-56-0x0000000000400000-0x0000000000D1C000-memory.dmp

          Filesize

          9.1MB

        • memory/748-57-0x0000000004450000-0x0000000004D3B000-memory.dmp

          Filesize

          8.9MB

        • memory/748-55-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/748-3-0x0000000000400000-0x0000000000D1C000-memory.dmp

          Filesize

          9.1MB

        • memory/748-1-0x0000000004040000-0x0000000004443000-memory.dmp

          Filesize

          4.0MB

        • memory/748-2-0x0000000004450000-0x0000000004D3B000-memory.dmp

          Filesize

          8.9MB

        • memory/780-224-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-223-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-220-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-230-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-229-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-228-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-221-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-227-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-226-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-225-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-222-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/780-214-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/1384-164-0x00000000059A0000-0x0000000005CF4000-memory.dmp

          Filesize

          3.3MB

        • memory/1384-175-0x0000000006200000-0x000000000624C000-memory.dmp

          Filesize

          304KB

        • memory/1384-176-0x00000000700C0000-0x000000007010C000-memory.dmp

          Filesize

          304KB

        • memory/1384-177-0x0000000070850000-0x0000000070BA4000-memory.dmp

          Filesize

          3.3MB

        • memory/1384-187-0x00000000072A0000-0x0000000007343000-memory.dmp

          Filesize

          652KB

        • memory/1384-188-0x00000000075D0000-0x00000000075E1000-memory.dmp

          Filesize

          68KB

        • memory/1384-189-0x0000000005E70000-0x0000000005E84000-memory.dmp

          Filesize

          80KB

        • memory/1404-136-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/1404-129-0x0000000000400000-0x0000000002364000-memory.dmp

          Filesize

          31.4MB

        • memory/2028-119-0x00000000703C0000-0x0000000070714000-memory.dmp

          Filesize

          3.3MB

        • memory/2028-118-0x0000000070240000-0x000000007028C000-memory.dmp

          Filesize

          304KB

        • memory/2268-28-0x0000000007E80000-0x0000000007EB2000-memory.dmp

          Filesize

          200KB

        • memory/2268-43-0x0000000007EE0000-0x0000000007F83000-memory.dmp

          Filesize

          652KB

        • memory/2268-4-0x00000000742AE000-0x00000000742AF000-memory.dmp

          Filesize

          4KB

        • memory/2268-5-0x0000000003330000-0x0000000003366000-memory.dmp

          Filesize

          216KB

        • memory/2268-6-0x0000000005A30000-0x0000000006058000-memory.dmp

          Filesize

          6.2MB

        • memory/2268-7-0x00000000742A0000-0x0000000074A50000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-8-0x00000000742A0000-0x0000000074A50000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-9-0x0000000006060000-0x0000000006082000-memory.dmp

          Filesize

          136KB

        • memory/2268-10-0x0000000006200000-0x0000000006266000-memory.dmp

          Filesize

          408KB

        • memory/2268-11-0x0000000006270000-0x00000000062D6000-memory.dmp

          Filesize

          408KB

        • memory/2268-53-0x00000000742A0000-0x0000000074A50000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-50-0x00000000080A0000-0x00000000080A8000-memory.dmp

          Filesize

          32KB

        • memory/2268-49-0x00000000080B0000-0x00000000080CA000-memory.dmp

          Filesize

          104KB

        • memory/2268-48-0x0000000008060000-0x0000000008074000-memory.dmp

          Filesize

          80KB

        • memory/2268-47-0x0000000008040000-0x000000000804E000-memory.dmp

          Filesize

          56KB

        • memory/2268-46-0x0000000008000000-0x0000000008011000-memory.dmp

          Filesize

          68KB

        • memory/2268-21-0x00000000063E0000-0x0000000006734000-memory.dmp

          Filesize

          3.3MB

        • memory/2268-45-0x0000000008100000-0x0000000008196000-memory.dmp

          Filesize

          600KB

        • memory/2268-22-0x00000000068E0000-0x00000000068FE000-memory.dmp

          Filesize

          120KB

        • memory/2268-23-0x0000000006930000-0x000000000697C000-memory.dmp

          Filesize

          304KB

        • memory/2268-24-0x0000000006EA0000-0x0000000006EE4000-memory.dmp

          Filesize

          272KB

        • memory/2268-25-0x0000000007A30000-0x0000000007AA6000-memory.dmp

          Filesize

          472KB

        • memory/2268-26-0x0000000008360000-0x00000000089DA000-memory.dmp

          Filesize

          6.5MB

        • memory/2268-27-0x0000000007CE0000-0x0000000007CFA000-memory.dmp

          Filesize

          104KB

        • memory/2268-44-0x0000000007FF0000-0x0000000007FFA000-memory.dmp

          Filesize

          40KB

        • memory/2268-29-0x0000000070140000-0x000000007018C000-memory.dmp

          Filesize

          304KB

        • memory/2268-42-0x00000000742A0000-0x0000000074A50000-memory.dmp

          Filesize

          7.7MB

        • memory/2268-41-0x0000000007EC0000-0x0000000007EDE000-memory.dmp

          Filesize

          120KB

        • memory/2268-31-0x00000000702C0000-0x0000000070614000-memory.dmp

          Filesize

          3.3MB

        • memory/2268-30-0x00000000742A0000-0x0000000074A50000-memory.dmp

          Filesize

          7.7MB

        • memory/3504-67-0x0000000006350000-0x00000000066A4000-memory.dmp

          Filesize

          3.3MB

        • memory/3504-70-0x00000000703C0000-0x0000000070714000-memory.dmp

          Filesize

          3.3MB

        • memory/3504-80-0x0000000007970000-0x0000000007A13000-memory.dmp

          Filesize

          652KB

        • memory/3504-81-0x0000000007C90000-0x0000000007CA1000-memory.dmp

          Filesize

          68KB

        • memory/3504-82-0x0000000007CE0000-0x0000000007CF4000-memory.dmp

          Filesize

          80KB

        • memory/3504-69-0x0000000070240000-0x000000007028C000-memory.dmp

          Filesize

          304KB

        • memory/3504-68-0x00000000069C0000-0x0000000006A0C000-memory.dmp

          Filesize

          304KB

        • memory/4044-196-0x0000000005850000-0x0000000005BA4000-memory.dmp

          Filesize

          3.3MB

        • memory/4044-202-0x00000000700C0000-0x000000007010C000-memory.dmp

          Filesize

          304KB

        • memory/4044-203-0x0000000070830000-0x0000000070B84000-memory.dmp

          Filesize

          3.3MB

        • memory/4152-149-0x00000000701A0000-0x00000000701EC000-memory.dmp

          Filesize

          304KB

        • memory/4152-137-0x0000000005D70000-0x00000000060C4000-memory.dmp

          Filesize

          3.3MB

        • memory/4152-148-0x0000000006950000-0x000000000699C000-memory.dmp

          Filesize

          304KB

        • memory/4152-150-0x0000000070940000-0x0000000070C94000-memory.dmp

          Filesize

          3.3MB

        • memory/4152-160-0x0000000007630000-0x00000000076D3000-memory.dmp

          Filesize

          652KB

        • memory/4152-161-0x00000000079C0000-0x00000000079D1000-memory.dmp

          Filesize

          68KB

        • memory/4152-162-0x00000000061F0000-0x0000000006204000-memory.dmp

          Filesize

          80KB

        • memory/4508-97-0x00000000703C0000-0x0000000070714000-memory.dmp

          Filesize

          3.3MB

        • memory/4508-96-0x0000000070240000-0x000000007028C000-memory.dmp

          Filesize

          304KB