Analysis

  • max time kernel
    45s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    17197dcf5b3e78fd283da19376caae5ddadca9863d9fe8249b90d2315c231b51.exe

  • Size

    601KB

  • MD5

    1831e396fdda27cbf40121c0a3dd9ba7

  • SHA1

    427a5920055247928dc30a0c9d973ed085eceaec

  • SHA256

    17197dcf5b3e78fd283da19376caae5ddadca9863d9fe8249b90d2315c231b51

  • SHA512

    12cbba738c508c6044a4109aec01a573b8fc7474c93a9df9bfc30ba723ff5a5e35b0ae55d0646d23cbec68956c6fb37c365635510427ff1fff2f90bb635cf3c1

  • SSDEEP

    12288:EIny5DYTtg4Kj6KrXGEaqR4HvM/xnsdAIK/lrxOq:iUTtgkKaQ4HvsxMAIK/dY

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\17197dcf5b3e78fd283da19376caae5ddadca9863d9fe8249b90d2315c231b51.exe
    "C:\Users\Admin\AppData\Local\Temp\17197dcf5b3e78fd283da19376caae5ddadca9863d9fe8249b90d2315c231b51.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:288
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1780
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:916
        • 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:1760
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1032
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:848
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1636
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:596
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1236
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:776

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bbde3fbe87c91318a73aff13252ea6d4

            SHA1

            bb2aa734a74079637fea33485e4e7c9bf6047731

            SHA256

            edbf14244f081c8537f0791fb281a650bdd07cac0bd53823021b31b2062a75e3

            SHA512

            40a597c72f1c73e8abf6020fc542ae3bbaffdf14122e65864590deb5ae13baf2516afd459ab83ba628e91afbf88835d4036baa55973c69b934c14faeb6a401f4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2eb4c89fbf5380beb75f7f994e750656

            SHA1

            7288c06add380a16830a631bc336e7c0120092a4

            SHA256

            08e955608d85aa2c58a31d294efde6eecaee63b3e352675a78eea15d8ad92757

            SHA512

            79ae7723ffffd67facba309b00ce0412db541018f0f13b958bdd898ae7d12c8207161402600dd7f79159e1fb87bdb2cc268c51bb0f93a8c22d46f36363704219

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fc55da40b43e0de7db1fbe6851ba909d

            SHA1

            341f9a7f455c67d9d6d98f3fd734faf9db068859

            SHA256

            7e46c12693c80ddfef054fc68ee355ab095060ecef1efec249074533b3d75c68

            SHA512

            5e0365a09ce4c0f5e11ca241f1c9e914f8ac67d8ca299de3bdfa6fd4484529795204481ad70fd1a73c997e13b15653f1d0680f135af59a92737d62fb6b8dd667

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c867e6b249db01a68bc6708a9da43274

            SHA1

            716e8588662aa5d2a1a1d4d41edf8115035ec0d4

            SHA256

            b77580c41779075521e55b0c363c9cc513e35287baf865751ba9ad9d1b59a484

            SHA512

            cf090a73e135b451a30e3ba2dab47355ce3b2c24059f96435f6ba81ba8152f1151e745c7b1309c20ddf2d3744a4d42e15957da283318390ff0036fec1ac568e4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c867e6b249db01a68bc6708a9da43274

            SHA1

            716e8588662aa5d2a1a1d4d41edf8115035ec0d4

            SHA256

            b77580c41779075521e55b0c363c9cc513e35287baf865751ba9ad9d1b59a484

            SHA512

            cf090a73e135b451a30e3ba2dab47355ce3b2c24059f96435f6ba81ba8152f1151e745c7b1309c20ddf2d3744a4d42e15957da283318390ff0036fec1ac568e4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4e323019d0e8903b806fa2b236d81074

            SHA1

            507d4753fff281a15fb86048c34ea5bbb24fd70e

            SHA256

            8fcc761d70beeb063d66d11aff7f083de0968d0770120ef1e98d90449ef3b74f

            SHA512

            b420fa02c4cc193a71ced2a34f4bdc53b8d30492327e6bb1ae32e8f031c00191cb617acd10ae83cf312f7060e03a4d5a9261459df135d0e9d6c4db003e200ae8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4e323019d0e8903b806fa2b236d81074

            SHA1

            507d4753fff281a15fb86048c34ea5bbb24fd70e

            SHA256

            8fcc761d70beeb063d66d11aff7f083de0968d0770120ef1e98d90449ef3b74f

            SHA512

            b420fa02c4cc193a71ced2a34f4bdc53b8d30492327e6bb1ae32e8f031c00191cb617acd10ae83cf312f7060e03a4d5a9261459df135d0e9d6c4db003e200ae8

          • \Users\Admin\AppData\Local\Temp\nsyDFA8.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyDFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyDFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyDFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyDFA8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bbde3fbe87c91318a73aff13252ea6d4

            SHA1

            bb2aa734a74079637fea33485e4e7c9bf6047731

            SHA256

            edbf14244f081c8537f0791fb281a650bdd07cac0bd53823021b31b2062a75e3

            SHA512

            40a597c72f1c73e8abf6020fc542ae3bbaffdf14122e65864590deb5ae13baf2516afd459ab83ba628e91afbf88835d4036baa55973c69b934c14faeb6a401f4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bbde3fbe87c91318a73aff13252ea6d4

            SHA1

            bb2aa734a74079637fea33485e4e7c9bf6047731

            SHA256

            edbf14244f081c8537f0791fb281a650bdd07cac0bd53823021b31b2062a75e3

            SHA512

            40a597c72f1c73e8abf6020fc542ae3bbaffdf14122e65864590deb5ae13baf2516afd459ab83ba628e91afbf88835d4036baa55973c69b934c14faeb6a401f4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bbde3fbe87c91318a73aff13252ea6d4

            SHA1

            bb2aa734a74079637fea33485e4e7c9bf6047731

            SHA256

            edbf14244f081c8537f0791fb281a650bdd07cac0bd53823021b31b2062a75e3

            SHA512

            40a597c72f1c73e8abf6020fc542ae3bbaffdf14122e65864590deb5ae13baf2516afd459ab83ba628e91afbf88835d4036baa55973c69b934c14faeb6a401f4

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2eb4c89fbf5380beb75f7f994e750656

            SHA1

            7288c06add380a16830a631bc336e7c0120092a4

            SHA256

            08e955608d85aa2c58a31d294efde6eecaee63b3e352675a78eea15d8ad92757

            SHA512

            79ae7723ffffd67facba309b00ce0412db541018f0f13b958bdd898ae7d12c8207161402600dd7f79159e1fb87bdb2cc268c51bb0f93a8c22d46f36363704219

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2eb4c89fbf5380beb75f7f994e750656

            SHA1

            7288c06add380a16830a631bc336e7c0120092a4

            SHA256

            08e955608d85aa2c58a31d294efde6eecaee63b3e352675a78eea15d8ad92757

            SHA512

            79ae7723ffffd67facba309b00ce0412db541018f0f13b958bdd898ae7d12c8207161402600dd7f79159e1fb87bdb2cc268c51bb0f93a8c22d46f36363704219

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fc55da40b43e0de7db1fbe6851ba909d

            SHA1

            341f9a7f455c67d9d6d98f3fd734faf9db068859

            SHA256

            7e46c12693c80ddfef054fc68ee355ab095060ecef1efec249074533b3d75c68

            SHA512

            5e0365a09ce4c0f5e11ca241f1c9e914f8ac67d8ca299de3bdfa6fd4484529795204481ad70fd1a73c997e13b15653f1d0680f135af59a92737d62fb6b8dd667

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c867e6b249db01a68bc6708a9da43274

            SHA1

            716e8588662aa5d2a1a1d4d41edf8115035ec0d4

            SHA256

            b77580c41779075521e55b0c363c9cc513e35287baf865751ba9ad9d1b59a484

            SHA512

            cf090a73e135b451a30e3ba2dab47355ce3b2c24059f96435f6ba81ba8152f1151e745c7b1309c20ddf2d3744a4d42e15957da283318390ff0036fec1ac568e4

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4e323019d0e8903b806fa2b236d81074

            SHA1

            507d4753fff281a15fb86048c34ea5bbb24fd70e

            SHA256

            8fcc761d70beeb063d66d11aff7f083de0968d0770120ef1e98d90449ef3b74f

            SHA512

            b420fa02c4cc193a71ced2a34f4bdc53b8d30492327e6bb1ae32e8f031c00191cb617acd10ae83cf312f7060e03a4d5a9261459df135d0e9d6c4db003e200ae8

          • memory/288-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/288-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/288-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

            Filesize

            8KB

          • memory/596-81-0x0000000000000000-mapping.dmp

          • memory/848-76-0x0000000000000000-mapping.dmp

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

          • memory/916-61-0x0000000000000000-mapping.dmp

          • memory/1032-70-0x0000000000000000-mapping.dmp

          • memory/1236-87-0x0000000000000000-mapping.dmp

          • memory/1636-80-0x0000000000000000-mapping.dmp

          • memory/1692-86-0x0000000000000000-mapping.dmp

          • memory/1760-64-0x0000000000000000-mapping.dmp

          • memory/1780-58-0x0000000000000000-mapping.dmp

          • memory/1956-57-0x0000000000000000-mapping.dmp