Analysis

  • max time kernel
    47s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:07

General

  • Target

    f317a3990cb2f5a561d2cbb04972fc7b104bf85fa93648dec968c56d6ee94238.exe

  • Size

    602KB

  • MD5

    8ddef7e0771d6a3bee2ac9003062214c

  • SHA1

    a31ccac6f9fd33b5c988969753000ee6c05b85fd

  • SHA256

    f317a3990cb2f5a561d2cbb04972fc7b104bf85fa93648dec968c56d6ee94238

  • SHA512

    919078eadbd5e8ee1c759fdb8294c6252540c249aa8d3c3a1ebecb0a864902af22cc1d7591ff591dd11df547806139ae0ad12b95184018ec4574b00cc5b0c768

  • SSDEEP

    12288:VIny5DYTuyV1p2mx9T6V+zYDKDyGC8L1Ky3rf50NouFcL:hUTuyp6V+kDKDFLL1V3ivF0

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\f317a3990cb2f5a561d2cbb04972fc7b104bf85fa93648dec968c56d6ee94238.exe
    "C:\Users\Admin\AppData\Local\Temp\f317a3990cb2f5a561d2cbb04972fc7b104bf85fa93648dec968c56d6ee94238.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:1380
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1204
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1608
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1116
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1540
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1588
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:960
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:780
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1880
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:808
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1632
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1180
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1276

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            63d8bc0f8d0f1f90c184b4ecc8414ecb

            SHA1

            b643b8b4a1dd421c9474d3fd56f2ae5175f66431

            SHA256

            00beaa5d1174f9da5d05d54b84ad514159d82b2ccfa7490025c76e1f6c7a0c80

            SHA512

            de9535ce4f9cd85f6a2dcb86593d98d5ddc9a342f45bae27463626bec9fb7aab1a5653b1d9fb310e4715584dad2ee5a183060a8d3bb674895aad79cbaac110b6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5d02cc7ea44392d7b1c6f4c020eb4ff

            SHA1

            68b7770066cb70ffef6dce34b7659787266c5b71

            SHA256

            d379dd1da459ae54e2c486e54a8f286761843e5daa77571142112a3d419d5b24

            SHA512

            137e6b85909d84007d8ef789114f86663de197fc06505c9b653735bfc1fbb7848d7b9df65184e3b110f0a603178209eb69e2f5d840f9dcc7b0d05d7610fe5c3e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5c156aeed3898c3678a8c2744918bbab

            SHA1

            c75919cb96c873267aa1bb476ed8c96d5a1fe2a4

            SHA256

            321a3f544b6b08e680265402eea13aebfe876a83b1a5863e105b30d7aa514473

            SHA512

            0af8a938d61a1d63fdc0da3589be09286e1868bacd27d414603dc9ef27997e01a28342c1904225ec91952ef0829ac41d79c73dc5992ffa76b926476e11a55e4e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ded82f878c6bbdcc24b777a51e0d35f

            SHA1

            59997b2daef5f77df5ca8e59dc139152893dd129

            SHA256

            35ed3d5254cd36f49ed9583a432dc76ae341a27b8d9bdb6ae7dc8e110368ef0d

            SHA512

            97dbd07e88aeeb77dabf3d5bf34561404391c0db54d8dbf617a5ba9a2927c78d131e8dd13f878d95155b66e00461f8fd42ba79b9ade36b32300f03dbe2b8b211

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ded82f878c6bbdcc24b777a51e0d35f

            SHA1

            59997b2daef5f77df5ca8e59dc139152893dd129

            SHA256

            35ed3d5254cd36f49ed9583a432dc76ae341a27b8d9bdb6ae7dc8e110368ef0d

            SHA512

            97dbd07e88aeeb77dabf3d5bf34561404391c0db54d8dbf617a5ba9a2927c78d131e8dd13f878d95155b66e00461f8fd42ba79b9ade36b32300f03dbe2b8b211

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            53951f47b80ac7d48175701e2e3930a0

            SHA1

            a527004a5544a10a5608c03d18dd175df1d0e3e7

            SHA256

            08b30fb013f218b956eed92343997231cddfe8d858c9b903b92b8fd6601205e9

            SHA512

            bc9b32c86e55b0603760f83a68d41e0910ccdc2acc005724ca8c6371549abfa57608d66706eba78ddfb7bcb9a6ee5c2c681dc458aa9a0d4fd1f11e50ae565e36

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            53951f47b80ac7d48175701e2e3930a0

            SHA1

            a527004a5544a10a5608c03d18dd175df1d0e3e7

            SHA256

            08b30fb013f218b956eed92343997231cddfe8d858c9b903b92b8fd6601205e9

            SHA512

            bc9b32c86e55b0603760f83a68d41e0910ccdc2acc005724ca8c6371549abfa57608d66706eba78ddfb7bcb9a6ee5c2c681dc458aa9a0d4fd1f11e50ae565e36

          • \Users\Admin\AppData\Local\Temp\nso1816.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso1816.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1816.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1816.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso1816.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            63d8bc0f8d0f1f90c184b4ecc8414ecb

            SHA1

            b643b8b4a1dd421c9474d3fd56f2ae5175f66431

            SHA256

            00beaa5d1174f9da5d05d54b84ad514159d82b2ccfa7490025c76e1f6c7a0c80

            SHA512

            de9535ce4f9cd85f6a2dcb86593d98d5ddc9a342f45bae27463626bec9fb7aab1a5653b1d9fb310e4715584dad2ee5a183060a8d3bb674895aad79cbaac110b6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            63d8bc0f8d0f1f90c184b4ecc8414ecb

            SHA1

            b643b8b4a1dd421c9474d3fd56f2ae5175f66431

            SHA256

            00beaa5d1174f9da5d05d54b84ad514159d82b2ccfa7490025c76e1f6c7a0c80

            SHA512

            de9535ce4f9cd85f6a2dcb86593d98d5ddc9a342f45bae27463626bec9fb7aab1a5653b1d9fb310e4715584dad2ee5a183060a8d3bb674895aad79cbaac110b6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            63d8bc0f8d0f1f90c184b4ecc8414ecb

            SHA1

            b643b8b4a1dd421c9474d3fd56f2ae5175f66431

            SHA256

            00beaa5d1174f9da5d05d54b84ad514159d82b2ccfa7490025c76e1f6c7a0c80

            SHA512

            de9535ce4f9cd85f6a2dcb86593d98d5ddc9a342f45bae27463626bec9fb7aab1a5653b1d9fb310e4715584dad2ee5a183060a8d3bb674895aad79cbaac110b6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5d02cc7ea44392d7b1c6f4c020eb4ff

            SHA1

            68b7770066cb70ffef6dce34b7659787266c5b71

            SHA256

            d379dd1da459ae54e2c486e54a8f286761843e5daa77571142112a3d419d5b24

            SHA512

            137e6b85909d84007d8ef789114f86663de197fc06505c9b653735bfc1fbb7848d7b9df65184e3b110f0a603178209eb69e2f5d840f9dcc7b0d05d7610fe5c3e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5d02cc7ea44392d7b1c6f4c020eb4ff

            SHA1

            68b7770066cb70ffef6dce34b7659787266c5b71

            SHA256

            d379dd1da459ae54e2c486e54a8f286761843e5daa77571142112a3d419d5b24

            SHA512

            137e6b85909d84007d8ef789114f86663de197fc06505c9b653735bfc1fbb7848d7b9df65184e3b110f0a603178209eb69e2f5d840f9dcc7b0d05d7610fe5c3e

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5c156aeed3898c3678a8c2744918bbab

            SHA1

            c75919cb96c873267aa1bb476ed8c96d5a1fe2a4

            SHA256

            321a3f544b6b08e680265402eea13aebfe876a83b1a5863e105b30d7aa514473

            SHA512

            0af8a938d61a1d63fdc0da3589be09286e1868bacd27d414603dc9ef27997e01a28342c1904225ec91952ef0829ac41d79c73dc5992ffa76b926476e11a55e4e

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ded82f878c6bbdcc24b777a51e0d35f

            SHA1

            59997b2daef5f77df5ca8e59dc139152893dd129

            SHA256

            35ed3d5254cd36f49ed9583a432dc76ae341a27b8d9bdb6ae7dc8e110368ef0d

            SHA512

            97dbd07e88aeeb77dabf3d5bf34561404391c0db54d8dbf617a5ba9a2927c78d131e8dd13f878d95155b66e00461f8fd42ba79b9ade36b32300f03dbe2b8b211

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            53951f47b80ac7d48175701e2e3930a0

            SHA1

            a527004a5544a10a5608c03d18dd175df1d0e3e7

            SHA256

            08b30fb013f218b956eed92343997231cddfe8d858c9b903b92b8fd6601205e9

            SHA512

            bc9b32c86e55b0603760f83a68d41e0910ccdc2acc005724ca8c6371549abfa57608d66706eba78ddfb7bcb9a6ee5c2c681dc458aa9a0d4fd1f11e50ae565e36

          • memory/780-80-0x0000000000000000-mapping.dmp

          • memory/808-86-0x0000000000000000-mapping.dmp

          • memory/960-76-0x0000000000000000-mapping.dmp

          • memory/1116-62-0x0000000000000000-mapping.dmp

          • memory/1204-57-0x0000000000000000-mapping.dmp

          • memory/1380-54-0x00000000757A1000-0x00000000757A3000-memory.dmp

            Filesize

            8KB

          • memory/1380-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1380-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1484-61-0x0000000000000000-mapping.dmp

          • memory/1540-64-0x0000000000000000-mapping.dmp

          • memory/1588-70-0x0000000000000000-mapping.dmp

          • memory/1608-59-0x0000000000000000-mapping.dmp

          • memory/1632-87-0x0000000000000000-mapping.dmp

          • memory/1880-81-0x0000000000000000-mapping.dmp