Analysis

  • max time kernel
    62s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    1853a3c5b4333e8d35cc223bcc76d2816334dafe876ef8c9916c065c27a91289.exe

  • Size

    602KB

  • MD5

    bd97053ed5fb7c4468a9b4e44bd2f364

  • SHA1

    d4d31d922cd0febcdf378cd27c3afad27086a6ea

  • SHA256

    1853a3c5b4333e8d35cc223bcc76d2816334dafe876ef8c9916c065c27a91289

  • SHA512

    7ae1d794f4769347554d5c6d25c4f470dc68e462a25a272ee6719c5d08cd5804d8b64c4f0e2b03b6c587fe0aa5ad8b4f2cec1718dde8022787fc95a7300b0ca4

  • SSDEEP

    12288:dIny5DYTZIAp/GnzQNNFOqBF46elWDrSkO0S8QD24xHt5i2w2CpWgi:JUTZjcn85BK6ykOf8QDHiHs

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\1853a3c5b4333e8d35cc223bcc76d2816334dafe876ef8c9916c065c27a91289.exe
    "C:\Users\Admin\AppData\Local\Temp\1853a3c5b4333e8d35cc223bcc76d2816334dafe876ef8c9916c065c27a91289.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:960
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:588
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:384
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:520
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1924
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1572
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1748
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1072
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:688
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:868
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:968
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1876
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2008

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            935be79daf93d42287360a962cc83fee

            SHA1

            4a809296d719fd1fbab56cf38e093e48c99a3023

            SHA256

            ce6fa2270892d14d07cd3c722ba794fed9a2dc80b7731bbe607c4a8438fc2efa

            SHA512

            f634823be9052dcf841664dd2c55a4faeb6ecb66fbbed84bab46fd62c6174cc5dc29c7b64b9b6fa24a8e496da99a0a410f6a597e3733090b929c05014ca7f09b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            30479d15fa650e80aca7fd11576a8419

            SHA1

            160221f4e45e0625568459a12a8e5ce9db78bb93

            SHA256

            eb07fad0bf39e746d81403c4ab14b588148727187d3dd10a10d805d4d233725b

            SHA512

            d02c398b4df20dece021ae8c0054da3d5cf8feed7c8255a11ea82c77b426936046550c93eda46f6c8b71f4ae7428aa8373dc731be00d76e4bc23438c4df58773

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9482fe031f8e1f41fe320b5648796eb0

            SHA1

            f8ea12e9583d5e3960f9d072d3df7df6ff6747e7

            SHA256

            fd858e99c75ae86bb457d240cf1ae696223d12a19ed3f7e2d1d171139bdf2403

            SHA512

            a9e37019fe8857851b11f407a926d25a85d5ec343da1b7439a009c44c32263a7c3ca27bf8646ff4a64f0fa563086877ab29ce876f8db59ec0da346c0f4fdf56f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b033f671e040a2a42901277eebb7b841

            SHA1

            a279bfd22991ea1ddc9694c386b4218a8d132b49

            SHA256

            75415b995149ecf0968c09a050ce297bed5280a56b38591e47c34c3b3fd5e274

            SHA512

            7333d6b2366281a4f3062d568269997dea1834c6468386195d3600a001dba49c186c6131f1c34542d3b3a30563edcdd190edcd2e3dbf101ada3cce12b2d2cd0c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b033f671e040a2a42901277eebb7b841

            SHA1

            a279bfd22991ea1ddc9694c386b4218a8d132b49

            SHA256

            75415b995149ecf0968c09a050ce297bed5280a56b38591e47c34c3b3fd5e274

            SHA512

            7333d6b2366281a4f3062d568269997dea1834c6468386195d3600a001dba49c186c6131f1c34542d3b3a30563edcdd190edcd2e3dbf101ada3cce12b2d2cd0c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e26239153c921dd8675ea5acbf936091

            SHA1

            6478a155d02d033340b2f43eab830439eff67db8

            SHA256

            62814a490fdbc8730f2b409412343ff6ec071c6a6b9f9f364dc0f8943ce85bca

            SHA512

            98771340c9f8fbf696912b566d993a9d8be60ebc82873ca7745e3f0aa2d3f7eeafe0997e2216a49b4ab540612fa7e11f222e41c453d7910e2d65e2b862e96a4c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e26239153c921dd8675ea5acbf936091

            SHA1

            6478a155d02d033340b2f43eab830439eff67db8

            SHA256

            62814a490fdbc8730f2b409412343ff6ec071c6a6b9f9f364dc0f8943ce85bca

            SHA512

            98771340c9f8fbf696912b566d993a9d8be60ebc82873ca7745e3f0aa2d3f7eeafe0997e2216a49b4ab540612fa7e11f222e41c453d7910e2d65e2b862e96a4c

          • \Users\Admin\AppData\Local\Temp\nse9560.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nse9560.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9560.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9560.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nse9560.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            935be79daf93d42287360a962cc83fee

            SHA1

            4a809296d719fd1fbab56cf38e093e48c99a3023

            SHA256

            ce6fa2270892d14d07cd3c722ba794fed9a2dc80b7731bbe607c4a8438fc2efa

            SHA512

            f634823be9052dcf841664dd2c55a4faeb6ecb66fbbed84bab46fd62c6174cc5dc29c7b64b9b6fa24a8e496da99a0a410f6a597e3733090b929c05014ca7f09b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            935be79daf93d42287360a962cc83fee

            SHA1

            4a809296d719fd1fbab56cf38e093e48c99a3023

            SHA256

            ce6fa2270892d14d07cd3c722ba794fed9a2dc80b7731bbe607c4a8438fc2efa

            SHA512

            f634823be9052dcf841664dd2c55a4faeb6ecb66fbbed84bab46fd62c6174cc5dc29c7b64b9b6fa24a8e496da99a0a410f6a597e3733090b929c05014ca7f09b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            935be79daf93d42287360a962cc83fee

            SHA1

            4a809296d719fd1fbab56cf38e093e48c99a3023

            SHA256

            ce6fa2270892d14d07cd3c722ba794fed9a2dc80b7731bbe607c4a8438fc2efa

            SHA512

            f634823be9052dcf841664dd2c55a4faeb6ecb66fbbed84bab46fd62c6174cc5dc29c7b64b9b6fa24a8e496da99a0a410f6a597e3733090b929c05014ca7f09b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            30479d15fa650e80aca7fd11576a8419

            SHA1

            160221f4e45e0625568459a12a8e5ce9db78bb93

            SHA256

            eb07fad0bf39e746d81403c4ab14b588148727187d3dd10a10d805d4d233725b

            SHA512

            d02c398b4df20dece021ae8c0054da3d5cf8feed7c8255a11ea82c77b426936046550c93eda46f6c8b71f4ae7428aa8373dc731be00d76e4bc23438c4df58773

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            30479d15fa650e80aca7fd11576a8419

            SHA1

            160221f4e45e0625568459a12a8e5ce9db78bb93

            SHA256

            eb07fad0bf39e746d81403c4ab14b588148727187d3dd10a10d805d4d233725b

            SHA512

            d02c398b4df20dece021ae8c0054da3d5cf8feed7c8255a11ea82c77b426936046550c93eda46f6c8b71f4ae7428aa8373dc731be00d76e4bc23438c4df58773

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9482fe031f8e1f41fe320b5648796eb0

            SHA1

            f8ea12e9583d5e3960f9d072d3df7df6ff6747e7

            SHA256

            fd858e99c75ae86bb457d240cf1ae696223d12a19ed3f7e2d1d171139bdf2403

            SHA512

            a9e37019fe8857851b11f407a926d25a85d5ec343da1b7439a009c44c32263a7c3ca27bf8646ff4a64f0fa563086877ab29ce876f8db59ec0da346c0f4fdf56f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b033f671e040a2a42901277eebb7b841

            SHA1

            a279bfd22991ea1ddc9694c386b4218a8d132b49

            SHA256

            75415b995149ecf0968c09a050ce297bed5280a56b38591e47c34c3b3fd5e274

            SHA512

            7333d6b2366281a4f3062d568269997dea1834c6468386195d3600a001dba49c186c6131f1c34542d3b3a30563edcdd190edcd2e3dbf101ada3cce12b2d2cd0c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e26239153c921dd8675ea5acbf936091

            SHA1

            6478a155d02d033340b2f43eab830439eff67db8

            SHA256

            62814a490fdbc8730f2b409412343ff6ec071c6a6b9f9f364dc0f8943ce85bca

            SHA512

            98771340c9f8fbf696912b566d993a9d8be60ebc82873ca7745e3f0aa2d3f7eeafe0997e2216a49b4ab540612fa7e11f222e41c453d7910e2d65e2b862e96a4c

          • memory/384-62-0x0000000000000000-mapping.dmp

          • memory/520-63-0x0000000000000000-mapping.dmp

          • memory/564-58-0x0000000000000000-mapping.dmp

          • memory/588-59-0x0000000000000000-mapping.dmp

          • memory/688-82-0x0000000000000000-mapping.dmp

          • memory/868-87-0x0000000000000000-mapping.dmp

          • memory/960-54-0x0000000075651000-0x0000000075653000-memory.dmp

            Filesize

            8KB

          • memory/960-60-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/960-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/960-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/968-88-0x0000000000000000-mapping.dmp

          • memory/1072-81-0x0000000000000000-mapping.dmp

          • memory/1572-71-0x0000000000000000-mapping.dmp

          • memory/1748-77-0x0000000000000000-mapping.dmp

          • memory/1924-65-0x0000000000000000-mapping.dmp