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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

  • MD5

    92c47cbd15a6099a4da50d726015508c

  • SHA1

    91e8ab7d6c699f8ed8247705d03cec2c3d9b97d8

  • SHA256

    f4d4286a5b93621dac280247aa449c39a018aa4295e6f2c6a8dc80dfcfa64bf7

  • SHA512

    00f7b1ff896e034108c4e66812605dbbcf3eaef712823a561ffc642282b45a5838bf706e449b42381f794ccb0aa74e41fcc72ecfe28b5e37e31fff24800e3946

  • SSDEEP

    196608:qWgeIvwfI9jUC2gYBYv3vbWvGPI63p1e5zf:CaIH2gYBgDWgpwVf

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

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              Downloads

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

                Filesize

                2KB

                MD5

                627073ee3ca9676911bee35548eff2b8

                SHA1

                4c4b68c65e2cab9864b51167d710aa29ebdcff2e

                SHA256

                85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

                SHA512

                3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                944B

                MD5

                2e8eb51096d6f6781456fef7df731d97

                SHA1

                ec2aaf851a618fb43c3d040a13a71997c25bda43

                SHA256

                96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

                SHA512

                0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\VCRUNTIME140.dll

                Filesize

                116KB

                MD5

                be8dbe2dc77ebe7f88f910c61aec691a

                SHA1

                a19f08bb2b1c1de5bb61daf9f2304531321e0e40

                SHA256

                4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83

                SHA512

                0da644472b374f1da449a06623983d0477405b5229e386accadb154b43b8b083ee89f07c3f04d2c0c7501ead99ad95aecaa5873ff34c5eeb833285b598d5a655

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_bz2.pyd

                Filesize

                48KB

                MD5

                adaa3e7ab77129bbc4ed3d9c4adee584

                SHA1

                21aabd32b9cbfe0161539454138a43d5dbc73b65

                SHA256

                a1d8ce2c1efaa854bb0f9df43ebccf861ded6f8afb83c9a8b881904906359f55

                SHA512

                b73d3aba135fb5e0d907d430266754da2f02e714264cd4a33c1bfdeda4740bbe82d43056f1a7a85f4a8ed28cb7798693512b6d4cdb899ce65b6d271cf5e5e264

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_ctypes.pyd

                Filesize

                59KB

                MD5

                0f090d4159937400db90f1512fda50c8

                SHA1

                01cbcb413e50f3c204901dff7171998792133583

                SHA256

                ae6512a770673e268554363f2d1d2a202d0a337baf233c3e63335026d223be31

                SHA512

                151156a28d023cf68fd38cbecbe1484fc3f6bf525e7354fcced294f8e479e07453fd3fc22a6b8d049ddf0ad6306d2c7051ece4e7de1137578541a9aabefe3f12

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_decimal.pyd

                Filesize

                107KB

                MD5

                a592ba2bb04f53b47d87b4f7b0c8b328

                SHA1

                ca8c65ab0aab0f98af8cc1c1cf31c9744e56a33c

                SHA256

                19fe4a08b0b321ff9413da88e519f4a4a4510481605b250f2906a32e8bb14938

                SHA512

                1576fdc90d8678da0dab8253fdd8ec8b3ce924fa392f35d8c62207a85c31c26dae5524e983e97872933538551cbef9cd4ba9206bcd16f2ae0858ab11574d09e0

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_hashlib.pyd

                Filesize

                35KB

                MD5

                4dd4c7d3a7b954a337607b8b8c4a21d1

                SHA1

                b6318b830d73cbf9fa45be2915f852b5a5d81906

                SHA256

                926692fcecdb7e65a14ac0786e1f58e880ea8dae7f7bb3aa7f2c758c23f2af70

                SHA512

                dab02496c066a70a98334e841a0164df1a6e72e890ce66be440b10fdeecdfe7b8d0ec39d1af402ae72c8aa19763c92dd7404f3a829c9fdcf871c01b1aed122e1

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_lzma.pyd

                Filesize

                86KB

                MD5

                17082c94b383bca187eb13487425ec2c

                SHA1

                517df08af5c283ca08b7545b446c6c2309f45b8b

                SHA256

                ddbfef8da4a0d8c1c8c24d171de65b9f4069e2edb8f33ef5dfecf93cb2643bd4

                SHA512

                2b565d595e9a95aefae396fc7d66ee0aeb9bfe3c23d64540ba080ba39a484ab1c50f040161896cca6620c182f0b02a9db677dab099dca3cae863e6e2542bb12c

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_queue.pyd

                Filesize

                26KB

                MD5

                97cc5797405f90b20927e29867bc3c4f

                SHA1

                a2e7d2399cca252cc54fc1609621d441dff1ace5

                SHA256

                fb304ca68b41e573713abb012196ef1ae2d5b5e659d846bbf46b1f13946c2a39

                SHA512

                77780fe0951473762990cbef056b3bba36cda9299b1a7d31d9059a792f13b1a072ce3ab26d312c59805a7a2e9773b7300b406fd3af5e2d1270676a7862b9ca48

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_socket.pyd

                Filesize

                44KB

                MD5

                f52c1c015fb147729a7caab03b2f64f4

                SHA1

                8aebc2b18a02f1c6c7494271f7f9e779014bee31

                SHA256

                06d91ac02b00a29180f4520521de2f7de2593dd9c52e1c2b294e717c826a1b7d

                SHA512

                8ab076c551f0a6ffe02c26b4f0fbb2ea7756d4650fe39f53d7bd61f4cb6ae81460d46d8535c89c6d626e7c605882b39843f7f70dd50e9daf27af0f8cadd49c0f

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_sqlite3.pyd

                Filesize

                57KB

                MD5

                37a88a19bb1de9cf33141872c2c534cb

                SHA1

                a9209ec10af81913d9fd1d0dd6f1890d275617e8

                SHA256

                cca0fbe5268ab181bf8afbdc4af258d0fbd819317a78ddd1f58bef7d2f197350

                SHA512

                3a22064505b80b51ebaa0d534f17431f9449c8f2b155ec794f9c4f5508470576366ed3ba5d2de7ddf1836c6e638f26cad8cb0cc496daf30ee38ca97557238733

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\_ssl.pyd

                Filesize

                66KB

                MD5

                34402efc9a34b91768cf1280cc846c77

                SHA1

                20553a06fe807c274b0228ec6a6a49a11ec8b7c1

                SHA256

                fe52c34028c5d62430ea7a9be034557ccfecdddda9c57874f2832f584fedb031

                SHA512

                2b8a50f67b5d29db3e300bc0dd670dad0ba069afa9acf566cad03b8a993a0e49f1e28059737d3b21cef2321a13eff12249c80fa46832939d2bf6d8555490e99c

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\base_library.zip

                Filesize

                1.3MB

                MD5

                7fe4248421b2b2635fae84c194710e83

                SHA1

                34fdf7ff6f0a4eeab23e809949445571ebb5c70a

                SHA256

                bdc1f95f0bb15cc6c9c2268ba5c1c31af9bdc2d4272c898231c3861dd3b81415

                SHA512

                3b7b147068aaa1e26ea515cd2b99c1c924d86a32cd3021018a6c4e482307912c6c470c2e3da9c3ec0b45a5ebca626b3a853cfbca62ddf8b5e485a8310438873f

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\blank.aes

                Filesize

                110KB

                MD5

                a6bc8ec42e151686acfa1e2a9ad8cceb

                SHA1

                07038a36b7556d003f75bb0b1e6a74475aa49333

                SHA256

                2a68cfba7dddab3bb681845b7250ee7780f40772bca8db55b7e75f7f5c4d2e9f

                SHA512

                bc7f77d79f30fe2122d85f5a2d126444c2a12b9e42e13a08a868544c8ef40b51ebb523663083b0fbf0fa0d43f9271288a8e6c0017a5b344ef6fdaa9579730887

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\libcrypto-3.dll

                Filesize

                1.6MB

                MD5

                8377fe5949527dd7be7b827cb1ffd324

                SHA1

                aa483a875cb06a86a371829372980d772fda2bf9

                SHA256

                88e8aa1c816e9f03a3b589c7028319ef456f72adb86c9ddca346258b6b30402d

                SHA512

                c59d0cbe8a1c64f2c18b5e2b1f49705d079a2259378a1f95f7a368415a2dc3116e0c3c731e9abfa626d12c02b9e0d72c98c1f91a359f5486133478144fa7f5f7

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\libffi-8.dll

                Filesize

                29KB

                MD5

                08b000c3d990bc018fcb91a1e175e06e

                SHA1

                bd0ce09bb3414d11c91316113c2becfff0862d0d

                SHA256

                135c772b42ba6353757a4d076ce03dbf792456143b42d25a62066da46144fece

                SHA512

                8820d297aeda5a5ebe1306e7664f7a95421751db60d71dc20da251bcdfdc73f3fd0b22546bd62e62d7aa44dfe702e4032fe78802fb16ee6c2583d65abc891cbf

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\libssl-3.dll

                Filesize

                221KB

                MD5

                b2e766f5cf6f9d4dcbe8537bc5bded2f

                SHA1

                331269521ce1ab76799e69e9ae1c3b565a838574

                SHA256

                3cc6828e7047c6a7eff517aa434403ea42128c8595bf44126765b38200b87ce4

                SHA512

                5233c8230497aadb9393c3ee5049e4ab99766a68f82091fe32393ee980887ebd4503bf88847c462c40c3fc786f8d179dac5cb343b980944ade43bc6646f5ad5a

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\python312.dll

                Filesize

                1.7MB

                MD5

                6f7c42579f6c2b45fe866747127aef09

                SHA1

                b9487372fe3ed61022e52cc8dbd37e6640e87723

                SHA256

                07642b6a3d99ce88cff790087ac4e2ba0b2da1100cf1897f36e096427b580ee5

                SHA512

                aadf06fd6b4e14f600b0a614001b8c31e42d71801adec7c9c177dcbb4956e27617fa45ba477260a7e06d2ca4979ed5acc60311258427ee085e8025b61452acec

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\rar.exe

                Filesize

                615KB

                MD5

                9c223575ae5b9544bc3d69ac6364f75e

                SHA1

                8a1cb5ee02c742e937febc57609ac312247ba386

                SHA256

                90341ac8dcc9ec5f9efe89945a381eb701fe15c3196f594d9d9f0f67b4fc2213

                SHA512

                57663e2c07b56024aaae07515ee3a56b2f5068ebb2f2dc42be95d1224376c2458da21c965aab6ae54de780cb874c2fc9de83d9089abf4536de0f50faca582d09

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\rarreg.key

                Filesize

                456B

                MD5

                4531984cad7dacf24c086830068c4abe

                SHA1

                fa7c8c46677af01a83cf652ef30ba39b2aae14c3

                SHA256

                58209c8ab4191e834ffe2ecd003fd7a830d3650f0fd1355a74eb8a47c61d4211

                SHA512

                00056f471945d838ef2ce56d51c32967879fe54fcbf93a237ed85a98e27c5c8d2a39bc815b41c15caace2071edd0239d775a31d1794dc4dba49e7ecff1555122

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\select.pyd

                Filesize

                25KB

                MD5

                9a59688220e54fec39a6f81da8d0bfb0

                SHA1

                07a3454b21a831916e3906e7944232512cf65bc1

                SHA256

                50e969e062a80917f575af0fe47c458586ebce003cf50231c4c3708da8b5f105

                SHA512

                7cb7a039a0a1a7111c709d22f6e83ab4cb8714448daddb4d938c0d4692fa8589baa1f80a6a0eb626424b84212da59275a39e314a0e6ccaae8f0be1de4b7b994e

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\sqlite3.dll

                Filesize

                644KB

                MD5

                de562be5de5b7f3a441264d4f0833694

                SHA1

                b55717b5cd59f5f34965bc92731a6cea8a65fd20

                SHA256

                b8273963f55e7bf516f129ac7cf7b41790dffa0f4a16b81b5b6e300aa0142f7e

                SHA512

                baf1fbdd51d66ea473b56c82e181582bf288129c7698fc058f043ccfbcec1a28f69d89d3cfbfee77a16d3a3fd880b3b18fd46f98744190d5b229b06cf07c975a

              • C:\Users\Admin\AppData\Local\Temp\_MEI35002\unicodedata.pyd

                Filesize

                296KB

                MD5

                2730c614d83b6a018005778d32f4faca

                SHA1

                611735e993c3cc73ecccb03603e329d513d5678a

                SHA256

                baa76f6fd87d7a79148e32d3ae38f1d1fe5a98804b86e636902559e87b316e48

                SHA512

                9b391a62429cd4c40a34740ddb04fa4d8130f69f970bb94fa815485b9da788bca28681ec7d19e493af7c99a2f3bf92c3b53339ef43ad815032d4991f99cc8c45

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_551luw3v.yfc.ps1

                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

                Filesize

                136KB

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

                Filesize

                8KB

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

                Filesize

                6.8MB

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

                Filesize

                52KB

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

                Filesize

                100KB

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

                Filesize

                52KB

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

                Filesize

                204KB

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

                Filesize

                824KB

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

                Filesize

                144KB

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

                Filesize

                5.2MB

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

                Filesize

                148KB

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

                Filesize

                5.2MB

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

                Filesize

                80KB

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

                Filesize

                1.5MB

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

                Filesize

                180KB

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

                Filesize

                104KB

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

                Filesize

                1.1MB

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

                Filesize

                104KB

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

                Filesize

                144KB

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

                Filesize

                180KB

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

                Filesize

                148KB

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

                Filesize

                60KB

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

                Filesize

                6.8MB