Analysis

  • max time kernel
    43s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    29eedf373e4b7ef7f34b387edf1c5cfa861b665ac566de53489ae228d8c97186.exe

  • Size

    602KB

  • MD5

    c90a3e394098e79a1faf0ed729b06e02

  • SHA1

    35fa096daa28d1d99b93a1478bfb0e3689218d8c

  • SHA256

    29eedf373e4b7ef7f34b387edf1c5cfa861b665ac566de53489ae228d8c97186

  • SHA512

    cf276517ab23d5a0fa938616adb7378eb28042cff48893517fc928e7a2cb6a29d53d30d49da5652fed9802241b0e5c929bec0aed79dc653db9adca5eed733272

  • SSDEEP

    12288:lIny5DYTuo4jPCDAxU5gRMpeojQ623YObxOYBUx9JQajAmW+Pq+fkmhor8x:RUTuXjKejMpjQxYCxoXhqPn8

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\29eedf373e4b7ef7f34b387edf1c5cfa861b665ac566de53489ae228d8c97186.exe
    "C:\Users\Admin\AppData\Local\Temp\29eedf373e4b7ef7f34b387edf1c5cfa861b665ac566de53489ae228d8c97186.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1960
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1372
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1088
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:856
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1444
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:592
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1508
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2040
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1764
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1924
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1048
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:392
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1548

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a91957403136f8aa5564bf1594430d76

            SHA1

            1b9124cbfeb96224347f2df5eefbe46eb862bac5

            SHA256

            0a71172b680b5dc31a5a9f5792106a96d63cd4d88bc4196fa5ad1ce5de6c8fe4

            SHA512

            d01cca722a3ec81a3a907e8868d3216a3b038ea5d3b62bcfcb570f99fbc421a61617c2ff2c647c0b378a22341d55755ad4eacaf7f80e265cd205e7ad72e80cb8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f1f207e46d4c9b25db094afd0f9800cb

            SHA1

            47469393017c95e938fcfd658938458c5e9d11d4

            SHA256

            848ff91add26ebcff47f91f2f31dfcc384a4ad8ab9fe8f6da508992519249bd5

            SHA512

            6bcd00008be6933daf8e3c53b6a22e988105d970283055ca4e51d012ae25280831a0b3e9ded3225da5ce6c614ff314b0276199db825dcd6838a0fdb843284f1a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a67f082e54462f02e5dcf426974c1b7c

            SHA1

            84d48850684ff7fc7bef10ce2d4ede9a20d0fb08

            SHA256

            366e3898b46dedc0773030846dcaf95794136d94ba151468225393216703e7ec

            SHA512

            83bc549449ab2c60e6204ba02b95aab7f0fc3be193bde60b19c4b7a5651d4c3198ea169923685e7b13ec9134293733719f7fedf3c576f9dcc9fa3b817ac6d0f9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90d35c71f35810fd25980482b5353be8

            SHA1

            b155d91f0c46c429f98c728ce997b6ddc94bbe33

            SHA256

            c9b46b499a6262cac9abd90001b9bb82ad4ec03c7260704946c45f1b656b1457

            SHA512

            0357218cc64b68cc249fd89a0fe2ae5c897e20237b9e2c0a791cd5c09070bbfeed8c6e13de5e09af7e762bbab690670c9791a1b6894844949010c731c11ea4dc

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90d35c71f35810fd25980482b5353be8

            SHA1

            b155d91f0c46c429f98c728ce997b6ddc94bbe33

            SHA256

            c9b46b499a6262cac9abd90001b9bb82ad4ec03c7260704946c45f1b656b1457

            SHA512

            0357218cc64b68cc249fd89a0fe2ae5c897e20237b9e2c0a791cd5c09070bbfeed8c6e13de5e09af7e762bbab690670c9791a1b6894844949010c731c11ea4dc

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            65e13f4330676baec179858d53f2df27

            SHA1

            92c423ab111cd1b28ef237e877dfd3f9ef36b025

            SHA256

            69c030d86a1cbde6780186545b65a5ae5c7d3962855cb21dfdccdb89fd58ed75

            SHA512

            43bf2135ad2e9f0a5c423ec787b305adeb8088c1e318848e54c42c185c244c6c14f01a9e01e96bbf02045ec0ecaed391f9687ced37f5e75c62164b3547eb7eee

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            65e13f4330676baec179858d53f2df27

            SHA1

            92c423ab111cd1b28ef237e877dfd3f9ef36b025

            SHA256

            69c030d86a1cbde6780186545b65a5ae5c7d3962855cb21dfdccdb89fd58ed75

            SHA512

            43bf2135ad2e9f0a5c423ec787b305adeb8088c1e318848e54c42c185c244c6c14f01a9e01e96bbf02045ec0ecaed391f9687ced37f5e75c62164b3547eb7eee

          • \Users\Admin\AppData\Local\Temp\nsyB88.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyB88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyB88.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a91957403136f8aa5564bf1594430d76

            SHA1

            1b9124cbfeb96224347f2df5eefbe46eb862bac5

            SHA256

            0a71172b680b5dc31a5a9f5792106a96d63cd4d88bc4196fa5ad1ce5de6c8fe4

            SHA512

            d01cca722a3ec81a3a907e8868d3216a3b038ea5d3b62bcfcb570f99fbc421a61617c2ff2c647c0b378a22341d55755ad4eacaf7f80e265cd205e7ad72e80cb8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a91957403136f8aa5564bf1594430d76

            SHA1

            1b9124cbfeb96224347f2df5eefbe46eb862bac5

            SHA256

            0a71172b680b5dc31a5a9f5792106a96d63cd4d88bc4196fa5ad1ce5de6c8fe4

            SHA512

            d01cca722a3ec81a3a907e8868d3216a3b038ea5d3b62bcfcb570f99fbc421a61617c2ff2c647c0b378a22341d55755ad4eacaf7f80e265cd205e7ad72e80cb8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a91957403136f8aa5564bf1594430d76

            SHA1

            1b9124cbfeb96224347f2df5eefbe46eb862bac5

            SHA256

            0a71172b680b5dc31a5a9f5792106a96d63cd4d88bc4196fa5ad1ce5de6c8fe4

            SHA512

            d01cca722a3ec81a3a907e8868d3216a3b038ea5d3b62bcfcb570f99fbc421a61617c2ff2c647c0b378a22341d55755ad4eacaf7f80e265cd205e7ad72e80cb8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f1f207e46d4c9b25db094afd0f9800cb

            SHA1

            47469393017c95e938fcfd658938458c5e9d11d4

            SHA256

            848ff91add26ebcff47f91f2f31dfcc384a4ad8ab9fe8f6da508992519249bd5

            SHA512

            6bcd00008be6933daf8e3c53b6a22e988105d970283055ca4e51d012ae25280831a0b3e9ded3225da5ce6c614ff314b0276199db825dcd6838a0fdb843284f1a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f1f207e46d4c9b25db094afd0f9800cb

            SHA1

            47469393017c95e938fcfd658938458c5e9d11d4

            SHA256

            848ff91add26ebcff47f91f2f31dfcc384a4ad8ab9fe8f6da508992519249bd5

            SHA512

            6bcd00008be6933daf8e3c53b6a22e988105d970283055ca4e51d012ae25280831a0b3e9ded3225da5ce6c614ff314b0276199db825dcd6838a0fdb843284f1a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a67f082e54462f02e5dcf426974c1b7c

            SHA1

            84d48850684ff7fc7bef10ce2d4ede9a20d0fb08

            SHA256

            366e3898b46dedc0773030846dcaf95794136d94ba151468225393216703e7ec

            SHA512

            83bc549449ab2c60e6204ba02b95aab7f0fc3be193bde60b19c4b7a5651d4c3198ea169923685e7b13ec9134293733719f7fedf3c576f9dcc9fa3b817ac6d0f9

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            90d35c71f35810fd25980482b5353be8

            SHA1

            b155d91f0c46c429f98c728ce997b6ddc94bbe33

            SHA256

            c9b46b499a6262cac9abd90001b9bb82ad4ec03c7260704946c45f1b656b1457

            SHA512

            0357218cc64b68cc249fd89a0fe2ae5c897e20237b9e2c0a791cd5c09070bbfeed8c6e13de5e09af7e762bbab690670c9791a1b6894844949010c731c11ea4dc

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            65e13f4330676baec179858d53f2df27

            SHA1

            92c423ab111cd1b28ef237e877dfd3f9ef36b025

            SHA256

            69c030d86a1cbde6780186545b65a5ae5c7d3962855cb21dfdccdb89fd58ed75

            SHA512

            43bf2135ad2e9f0a5c423ec787b305adeb8088c1e318848e54c42c185c244c6c14f01a9e01e96bbf02045ec0ecaed391f9687ced37f5e75c62164b3547eb7eee

          • memory/592-70-0x0000000000000000-mapping.dmp

          • memory/856-62-0x0000000000000000-mapping.dmp

          • memory/1048-87-0x0000000000000000-mapping.dmp

          • memory/1088-61-0x0000000000000000-mapping.dmp

          • memory/1104-54-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

            Filesize

            8KB

          • memory/1104-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1104-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1372-58-0x0000000000000000-mapping.dmp

          • memory/1444-64-0x0000000000000000-mapping.dmp

          • memory/1508-76-0x0000000000000000-mapping.dmp

          • memory/1764-81-0x0000000000000000-mapping.dmp

          • memory/1924-86-0x0000000000000000-mapping.dmp

          • memory/1960-57-0x0000000000000000-mapping.dmp

          • memory/2040-80-0x0000000000000000-mapping.dmp