Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:53

General

  • Target

    ad5eae6052293ec047868b01aa5e7ecc6dbfc8de372e2d675fa35266b5097d37.exe

  • Size

    446KB

  • MD5

    6a6199326f48aec01bccf6eb0a23c642

  • SHA1

    46fd08389230e6ef6a4660112c67df36d0bfd10b

  • SHA256

    ad5eae6052293ec047868b01aa5e7ecc6dbfc8de372e2d675fa35266b5097d37

  • SHA512

    7d6d9c97564243cf008d5bd383007142be20b83a678894da5904e07ae45fd09e4926f7f1b2e3f93df275b80021b66fc2659b12e4a2785da0a0b86cad3f56da56

  • SSDEEP

    6144:XzfdTMKTfpnvx86qRT7K3F9MsW+sR4RE12O32G+E+X4A7NwKVgjVmJcPWXL1Wxn0:xTMKodT7KV9ar2OmI+X4A0YJ14xnMWrQ

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\ad5eae6052293ec047868b01aa5e7ecc6dbfc8de372e2d675fa35266b5097d37.exe
    "C:\Users\Admin\AppData\Local\Temp\ad5eae6052293ec047868b01aa5e7ecc6dbfc8de372e2d675fa35266b5097d37.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:1884
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2000
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1984
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1036
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:600
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1996
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1680
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1208
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:816
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:520
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1696

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce50256c432818a7a47f93cd28e35d08

            SHA1

            4bbfb0527d6338c7b7f664887e1694e19dced7bf

            SHA256

            134c6304e01a05e6cea4d058d2de79e1a30a64d412a2b3436d95ceaa3d13a0b4

            SHA512

            660e41ddf32b3c2236ff024e7898f1ac2062a415cdf85a0701e7f61de503ad26b56857a49137dce663c31c5b8a23b6ac463bfe902cbd0060f9c3ad5fce9d1395

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e95e9e0fa04ce312acdfac40f64e87d3

            SHA1

            068b70dcbe214030132131345ca196a4bed9969f

            SHA256

            7914f7d06866fa0bcdc3690ef31b8b50f2e9ad93f99c27e737a5ca6d79a23475

            SHA512

            172cb30390ab84ff2f91d713d80815193b767d42479fd7edb41388c88b9d2de8feeca161e7800f699e8da4d647106161cfec3500e9bc41915e7459850221077a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7e8e1ee547935c90295f1b5064c9ccf1

            SHA1

            c90f632b6063d8838aa835db4a54f13f10791c3a

            SHA256

            fb1e96113810bec2d98b592713647cfaddd3602573ecf985093b509768987926

            SHA512

            8213c3773a76a87d760da4401d1c33a7221f3624f8aa88184c38ad54974ad6419346b761afcbf3aebba0652522ca7389600f7a87632e774a239fac1b75f2b081

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            68ec775cf9b680594de10207ea9f550b

            SHA1

            dc972ed7493edd70f0cb4f385bb4a46e7573c8c0

            SHA256

            8e02039f469f20e43150a53651ed8a6dcb7c27d94084689bb34edd6ecafc60f2

            SHA512

            5cd757cfdd167916dc93ac323ac0d16fa7dc5acb1308ed8b1764dfd17f2b3f6974a8a2af17ca70f7165fecd21ac5be792e6fce9a49945fff1d5e35b04909802e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            68ec775cf9b680594de10207ea9f550b

            SHA1

            dc972ed7493edd70f0cb4f385bb4a46e7573c8c0

            SHA256

            8e02039f469f20e43150a53651ed8a6dcb7c27d94084689bb34edd6ecafc60f2

            SHA512

            5cd757cfdd167916dc93ac323ac0d16fa7dc5acb1308ed8b1764dfd17f2b3f6974a8a2af17ca70f7165fecd21ac5be792e6fce9a49945fff1d5e35b04909802e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01658c5f7f403b328cf7fa5082951d91

            SHA1

            9c939967be6c9fe194a78453fbc34b0b74ef3d8b

            SHA256

            b8d6ddf3ed406b669f86eb213483ffc7cd59b527fcc215ef096fe3247f611695

            SHA512

            dd9bcce695eb1844c084270fa342b2abc08b44140f1aa461f54ecae05e760f7ba67f6c47d0de34a7274c1a9de572e2f4f1880bd013fdcd0d4881610cc42f01be

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01658c5f7f403b328cf7fa5082951d91

            SHA1

            9c939967be6c9fe194a78453fbc34b0b74ef3d8b

            SHA256

            b8d6ddf3ed406b669f86eb213483ffc7cd59b527fcc215ef096fe3247f611695

            SHA512

            dd9bcce695eb1844c084270fa342b2abc08b44140f1aa461f54ecae05e760f7ba67f6c47d0de34a7274c1a9de572e2f4f1880bd013fdcd0d4881610cc42f01be

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce50256c432818a7a47f93cd28e35d08

            SHA1

            4bbfb0527d6338c7b7f664887e1694e19dced7bf

            SHA256

            134c6304e01a05e6cea4d058d2de79e1a30a64d412a2b3436d95ceaa3d13a0b4

            SHA512

            660e41ddf32b3c2236ff024e7898f1ac2062a415cdf85a0701e7f61de503ad26b56857a49137dce663c31c5b8a23b6ac463bfe902cbd0060f9c3ad5fce9d1395

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce50256c432818a7a47f93cd28e35d08

            SHA1

            4bbfb0527d6338c7b7f664887e1694e19dced7bf

            SHA256

            134c6304e01a05e6cea4d058d2de79e1a30a64d412a2b3436d95ceaa3d13a0b4

            SHA512

            660e41ddf32b3c2236ff024e7898f1ac2062a415cdf85a0701e7f61de503ad26b56857a49137dce663c31c5b8a23b6ac463bfe902cbd0060f9c3ad5fce9d1395

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce50256c432818a7a47f93cd28e35d08

            SHA1

            4bbfb0527d6338c7b7f664887e1694e19dced7bf

            SHA256

            134c6304e01a05e6cea4d058d2de79e1a30a64d412a2b3436d95ceaa3d13a0b4

            SHA512

            660e41ddf32b3c2236ff024e7898f1ac2062a415cdf85a0701e7f61de503ad26b56857a49137dce663c31c5b8a23b6ac463bfe902cbd0060f9c3ad5fce9d1395

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e95e9e0fa04ce312acdfac40f64e87d3

            SHA1

            068b70dcbe214030132131345ca196a4bed9969f

            SHA256

            7914f7d06866fa0bcdc3690ef31b8b50f2e9ad93f99c27e737a5ca6d79a23475

            SHA512

            172cb30390ab84ff2f91d713d80815193b767d42479fd7edb41388c88b9d2de8feeca161e7800f699e8da4d647106161cfec3500e9bc41915e7459850221077a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e95e9e0fa04ce312acdfac40f64e87d3

            SHA1

            068b70dcbe214030132131345ca196a4bed9969f

            SHA256

            7914f7d06866fa0bcdc3690ef31b8b50f2e9ad93f99c27e737a5ca6d79a23475

            SHA512

            172cb30390ab84ff2f91d713d80815193b767d42479fd7edb41388c88b9d2de8feeca161e7800f699e8da4d647106161cfec3500e9bc41915e7459850221077a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7e8e1ee547935c90295f1b5064c9ccf1

            SHA1

            c90f632b6063d8838aa835db4a54f13f10791c3a

            SHA256

            fb1e96113810bec2d98b592713647cfaddd3602573ecf985093b509768987926

            SHA512

            8213c3773a76a87d760da4401d1c33a7221f3624f8aa88184c38ad54974ad6419346b761afcbf3aebba0652522ca7389600f7a87632e774a239fac1b75f2b081

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            68ec775cf9b680594de10207ea9f550b

            SHA1

            dc972ed7493edd70f0cb4f385bb4a46e7573c8c0

            SHA256

            8e02039f469f20e43150a53651ed8a6dcb7c27d94084689bb34edd6ecafc60f2

            SHA512

            5cd757cfdd167916dc93ac323ac0d16fa7dc5acb1308ed8b1764dfd17f2b3f6974a8a2af17ca70f7165fecd21ac5be792e6fce9a49945fff1d5e35b04909802e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            01658c5f7f403b328cf7fa5082951d91

            SHA1

            9c939967be6c9fe194a78453fbc34b0b74ef3d8b

            SHA256

            b8d6ddf3ed406b669f86eb213483ffc7cd59b527fcc215ef096fe3247f611695

            SHA512

            dd9bcce695eb1844c084270fa342b2abc08b44140f1aa461f54ecae05e760f7ba67f6c47d0de34a7274c1a9de572e2f4f1880bd013fdcd0d4881610cc42f01be

          • memory/600-75-0x0000000000000000-mapping.dmp

          • memory/816-86-0x0000000000000000-mapping.dmp

          • memory/948-57-0x0000000000000000-mapping.dmp

          • memory/1036-69-0x0000000000000000-mapping.dmp

          • memory/1208-85-0x0000000000000000-mapping.dmp

          • memory/1680-80-0x0000000000000000-mapping.dmp

          • memory/1884-54-0x0000000075E31000-0x0000000075E33000-memory.dmp

            Filesize

            8KB

          • memory/1984-63-0x0000000000000000-mapping.dmp

          • memory/1996-79-0x0000000000000000-mapping.dmp

          • memory/2000-61-0x0000000000000000-mapping.dmp

          • memory/2020-58-0x0000000000000000-mapping.dmp

          • memory/2040-60-0x0000000000000000-mapping.dmp