Analysis

  • max time kernel
    151s
  • max time network
    188s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    f0dc1bd74b5cc861fe948b447bec991f1e36a418006ed74113c6af6671b869b5.exe

  • Size

    445KB

  • MD5

    bb56425b6fbbb2e788bc171d5c26947a

  • SHA1

    ecab26d9b678c4bed94985ccda5275f25b5e5366

  • SHA256

    f0dc1bd74b5cc861fe948b447bec991f1e36a418006ed74113c6af6671b869b5

  • SHA512

    bbd21d288273642ce5e75de3027067c1fac0bf88de0df8b3cb049700b3d3ad9f2a46cdb2929c338adb7ef7424bfa0ecd004e6d0b8c6875e258f836bdba24b7ad

  • SSDEEP

    12288:aQ7tMRoa/0Fnwk3vUGqxjJ+8Uj8ojAI9YJVgooHRe3rLt:a05akwdGms8S8ojAWYJWdIN

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f0dc1bd74b5cc861fe948b447bec991f1e36a418006ed74113c6af6671b869b5.exe
    "C:\Users\Admin\AppData\Local\Temp\f0dc1bd74b5cc861fe948b447bec991f1e36a418006ed74113c6af6671b869b5.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:4156
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4552
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3288
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2192
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:408
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1648
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3668
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:828
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3844
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4356
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2452
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:4952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3312

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn1C25.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3c2b57a2808545dfb87347c248cef136

            SHA1

            7524c58766a48b8d971b1c78461c7cf77b20d739

            SHA256

            e8bf6c8f6d40fcaa39c2208c71ebe62e168202d13d99160a3a7bf6c1f95cfe84

            SHA512

            86c3da55cfad30eb4e12e1cfd0840ce8c2f7e31fe52badc344ba4983fd5441d54b70261b01b3c4d7781e1cfaab969fd6a14888f2131853da3548af8d77bd2ff4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3c2b57a2808545dfb87347c248cef136

            SHA1

            7524c58766a48b8d971b1c78461c7cf77b20d739

            SHA256

            e8bf6c8f6d40fcaa39c2208c71ebe62e168202d13d99160a3a7bf6c1f95cfe84

            SHA512

            86c3da55cfad30eb4e12e1cfd0840ce8c2f7e31fe52badc344ba4983fd5441d54b70261b01b3c4d7781e1cfaab969fd6a14888f2131853da3548af8d77bd2ff4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3c2b57a2808545dfb87347c248cef136

            SHA1

            7524c58766a48b8d971b1c78461c7cf77b20d739

            SHA256

            e8bf6c8f6d40fcaa39c2208c71ebe62e168202d13d99160a3a7bf6c1f95cfe84

            SHA512

            86c3da55cfad30eb4e12e1cfd0840ce8c2f7e31fe52badc344ba4983fd5441d54b70261b01b3c4d7781e1cfaab969fd6a14888f2131853da3548af8d77bd2ff4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3c2b57a2808545dfb87347c248cef136

            SHA1

            7524c58766a48b8d971b1c78461c7cf77b20d739

            SHA256

            e8bf6c8f6d40fcaa39c2208c71ebe62e168202d13d99160a3a7bf6c1f95cfe84

            SHA512

            86c3da55cfad30eb4e12e1cfd0840ce8c2f7e31fe52badc344ba4983fd5441d54b70261b01b3c4d7781e1cfaab969fd6a14888f2131853da3548af8d77bd2ff4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c0715aff339368a69ea16e9489d1b38c

            SHA1

            845ce7aa37674db259e83d775b004590859882b2

            SHA256

            ca527c1ace48c9a022e21a097cd5510ef74a9ce30edb04325ef261de4afad1a8

            SHA512

            c40cd8520ba6b65e3b14f412a24675b3dfa53395ce0476803562e284c6265d11a9e520279210f895ce05ffef2b215d0a3c4d696322ee8db993245bd991347cbf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c0715aff339368a69ea16e9489d1b38c

            SHA1

            845ce7aa37674db259e83d775b004590859882b2

            SHA256

            ca527c1ace48c9a022e21a097cd5510ef74a9ce30edb04325ef261de4afad1a8

            SHA512

            c40cd8520ba6b65e3b14f412a24675b3dfa53395ce0476803562e284c6265d11a9e520279210f895ce05ffef2b215d0a3c4d696322ee8db993245bd991347cbf

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            c0715aff339368a69ea16e9489d1b38c

            SHA1

            845ce7aa37674db259e83d775b004590859882b2

            SHA256

            ca527c1ace48c9a022e21a097cd5510ef74a9ce30edb04325ef261de4afad1a8

            SHA512

            c40cd8520ba6b65e3b14f412a24675b3dfa53395ce0476803562e284c6265d11a9e520279210f895ce05ffef2b215d0a3c4d696322ee8db993245bd991347cbf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2b63e37c3012b8106e307f247ce21a15

            SHA1

            627826ae665101aa59f5d67d4e784c027d52251c

            SHA256

            1e246e7f5fd07899109cf1ab18f7131cec3bdbfd7967d6218da9e93443dcbb57

            SHA512

            e70f8deb584a53bf5826a10c1d925eae0d91f5dd57aeefdf7b99a8228b5368464ec613d9f879958fed9c084782a2163125f012b90789d6cf06e5b6bb1efb6df5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2b63e37c3012b8106e307f247ce21a15

            SHA1

            627826ae665101aa59f5d67d4e784c027d52251c

            SHA256

            1e246e7f5fd07899109cf1ab18f7131cec3bdbfd7967d6218da9e93443dcbb57

            SHA512

            e70f8deb584a53bf5826a10c1d925eae0d91f5dd57aeefdf7b99a8228b5368464ec613d9f879958fed9c084782a2163125f012b90789d6cf06e5b6bb1efb6df5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9579cdf442c86ed54a1e8f010f43aa69

            SHA1

            4f3f9872e5e1e6ff45b6881ffdde5872f7dc6b59

            SHA256

            821221267669080c25fd300bd3444cc7354e8614e6e2d92d01fd32958d2f91f8

            SHA512

            8f7bd22b86cfc45580e6a78cbe8f0600f13235c922faa14b8114266f972db77e0e24117fe085ec614bae71161ef59566985052d262289312c36c2a11c2fac98b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9579cdf442c86ed54a1e8f010f43aa69

            SHA1

            4f3f9872e5e1e6ff45b6881ffdde5872f7dc6b59

            SHA256

            821221267669080c25fd300bd3444cc7354e8614e6e2d92d01fd32958d2f91f8

            SHA512

            8f7bd22b86cfc45580e6a78cbe8f0600f13235c922faa14b8114266f972db77e0e24117fe085ec614bae71161ef59566985052d262289312c36c2a11c2fac98b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9579cdf442c86ed54a1e8f010f43aa69

            SHA1

            4f3f9872e5e1e6ff45b6881ffdde5872f7dc6b59

            SHA256

            821221267669080c25fd300bd3444cc7354e8614e6e2d92d01fd32958d2f91f8

            SHA512

            8f7bd22b86cfc45580e6a78cbe8f0600f13235c922faa14b8114266f972db77e0e24117fe085ec614bae71161ef59566985052d262289312c36c2a11c2fac98b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            08bc4249516a64cc84f0ac3d6f77dda8

            SHA1

            88bcb6a42b02f5ebde736f8412613719cc74ac00

            SHA256

            962304acd661d5f5273baa6308cf04b24772d69bcf475b7d77d97cd2e21542ba

            SHA512

            2981289075d004df3cead4d660f2f3d9de36f2dd10d4243ca8ab03bd616777a4d54ab7086acb72957711941866c56f1a453582cdef265b7538c0919a536939b0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            08bc4249516a64cc84f0ac3d6f77dda8

            SHA1

            88bcb6a42b02f5ebde736f8412613719cc74ac00

            SHA256

            962304acd661d5f5273baa6308cf04b24772d69bcf475b7d77d97cd2e21542ba

            SHA512

            2981289075d004df3cead4d660f2f3d9de36f2dd10d4243ca8ab03bd616777a4d54ab7086acb72957711941866c56f1a453582cdef265b7538c0919a536939b0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            08bc4249516a64cc84f0ac3d6f77dda8

            SHA1

            88bcb6a42b02f5ebde736f8412613719cc74ac00

            SHA256

            962304acd661d5f5273baa6308cf04b24772d69bcf475b7d77d97cd2e21542ba

            SHA512

            2981289075d004df3cead4d660f2f3d9de36f2dd10d4243ca8ab03bd616777a4d54ab7086acb72957711941866c56f1a453582cdef265b7538c0919a536939b0

          • memory/408-141-0x0000000000000000-mapping.dmp

          • memory/828-157-0x0000000000000000-mapping.dmp

          • memory/1648-146-0x0000000000000000-mapping.dmp

          • memory/2012-139-0x0000000000000000-mapping.dmp

          • memory/2192-140-0x0000000000000000-mapping.dmp

          • memory/2452-165-0x0000000000000000-mapping.dmp

          • memory/3288-136-0x0000000000000000-mapping.dmp

          • memory/3668-152-0x0000000000000000-mapping.dmp

          • memory/3844-158-0x0000000000000000-mapping.dmp

          • memory/4356-164-0x0000000000000000-mapping.dmp

          • memory/4552-135-0x0000000000000000-mapping.dmp