Analysis

  • max time kernel
    78s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

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

General

  • Target

    d622d8fd96d98dfe91a22fe18ad0b6140de2109f49961c562dcaeb28d6eafc65.exe

  • Size

    603KB

  • MD5

    2dfa4a83264a3d4e7c1227a0761b32ce

  • SHA1

    238f679c3ac3a7bb2fdb82aba5c9a0ee0548b180

  • SHA256

    d622d8fd96d98dfe91a22fe18ad0b6140de2109f49961c562dcaeb28d6eafc65

  • SHA512

    5ec014179f8f1f81909a8fd7626c64f796d0f401484949b16deda58ce23e98c570bca3dac16a5b9f0432b70a14288827aba682ce5958e71b520aac32f38d6c7f

  • SSDEEP

    12288:ZIny5DYTHu3hrSizrb7GqKWDsTzI9tMzuj3vFtBShMY5qOanRfnMy:VUTOxoBzy3vFtBSh+pnJ

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\d622d8fd96d98dfe91a22fe18ad0b6140de2109f49961c562dcaeb28d6eafc65.exe
    "C:\Users\Admin\AppData\Local\Temp\d622d8fd96d98dfe91a22fe18ad0b6140de2109f49961c562dcaeb28d6eafc65.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:1140
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1464
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:472
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:944
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1924
        • 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:1160
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1912
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1184
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2012
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2036
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1944
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1752

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f93083a166c3b802abe3892609e5a971

            SHA1

            f96c47b703137769cad3b9876556219540d7fd0e

            SHA256

            0ac3c340d559a0cce8fe4b0e980091b35167884914f66651171d336c887122ed

            SHA512

            132441cc601dee9d3367c6fd6353dab390de8ae620d7c2861408b15023bd6faeb412df0eebe18d5116cd148b3c81f22544854b1a2bf8b5167ca8c2b4a3bf7fca

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4003c587e02b399b424c3843f68d5855

            SHA1

            8930848b1dd62840d7a4571b9ddf0b2988eb0901

            SHA256

            41005a89a6513c16d6ae0a47fa97ca09c9425a98a729b0f565b718a58b4f432d

            SHA512

            ec8e657d53b3f9f729b8806d8afde0fe17a086a65cf2da77cf8ef253acd2f712e43381a0a78518b004584922c94cb389df539ef50bdb6c92e6099e18fbc2b6f3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bd90827885cf621141874ce2b4e4c174

            SHA1

            ee24eded23cbee51ce2cd073ce278ab30f543c61

            SHA256

            455e84afb4865a2147b5a0c256841703a9b3135fcafddfc9468fa450512ce9bb

            SHA512

            d5d529e11ef0812558e207736c57b8ac97b7673f2afe1e0cf105c3da640d28b2bbbb2ae810186d9f1619e595e2bd7820c9f4a2de055fa9a63260cfd2e9cbd9aa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            201f136a33709e27d79547caebd00cdc

            SHA1

            d9229d35a9fc2bd48293b7e91fb624077aeb0611

            SHA256

            bf0ccc7c4753c91fbc9342ef783d9e0e8d36c09e7e2bea71487916ee937dda2f

            SHA512

            4897e268699697cabdbf9347ac744c1a440dfedc557bcabb788ba03106ed113510ce1f163cca009378c9f15dfe7a3c663f2f0ff2242224b8393317b97e82bafa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            201f136a33709e27d79547caebd00cdc

            SHA1

            d9229d35a9fc2bd48293b7e91fb624077aeb0611

            SHA256

            bf0ccc7c4753c91fbc9342ef783d9e0e8d36c09e7e2bea71487916ee937dda2f

            SHA512

            4897e268699697cabdbf9347ac744c1a440dfedc557bcabb788ba03106ed113510ce1f163cca009378c9f15dfe7a3c663f2f0ff2242224b8393317b97e82bafa

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            419268bda19ab230682a19c400ab6f79

            SHA1

            91d1332c22be496ef453b3b451cff013c52105ab

            SHA256

            21c5177480a2d075d1102af33921c50d13eab89fa0a971b34e0317f30ba608b3

            SHA512

            60f54ce1c408f71970332f4d64d565f08038777e6423df6c7d4d8489cb64a105ea8142443d515a46ae38deb20d984a9dcd0c067fece54b1256934421ecf5a94e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            419268bda19ab230682a19c400ab6f79

            SHA1

            91d1332c22be496ef453b3b451cff013c52105ab

            SHA256

            21c5177480a2d075d1102af33921c50d13eab89fa0a971b34e0317f30ba608b3

            SHA512

            60f54ce1c408f71970332f4d64d565f08038777e6423df6c7d4d8489cb64a105ea8142443d515a46ae38deb20d984a9dcd0c067fece54b1256934421ecf5a94e

          • \Users\Admin\AppData\Local\Temp\nsjB5CB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjB5CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB5CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB5CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjB5CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f93083a166c3b802abe3892609e5a971

            SHA1

            f96c47b703137769cad3b9876556219540d7fd0e

            SHA256

            0ac3c340d559a0cce8fe4b0e980091b35167884914f66651171d336c887122ed

            SHA512

            132441cc601dee9d3367c6fd6353dab390de8ae620d7c2861408b15023bd6faeb412df0eebe18d5116cd148b3c81f22544854b1a2bf8b5167ca8c2b4a3bf7fca

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f93083a166c3b802abe3892609e5a971

            SHA1

            f96c47b703137769cad3b9876556219540d7fd0e

            SHA256

            0ac3c340d559a0cce8fe4b0e980091b35167884914f66651171d336c887122ed

            SHA512

            132441cc601dee9d3367c6fd6353dab390de8ae620d7c2861408b15023bd6faeb412df0eebe18d5116cd148b3c81f22544854b1a2bf8b5167ca8c2b4a3bf7fca

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f93083a166c3b802abe3892609e5a971

            SHA1

            f96c47b703137769cad3b9876556219540d7fd0e

            SHA256

            0ac3c340d559a0cce8fe4b0e980091b35167884914f66651171d336c887122ed

            SHA512

            132441cc601dee9d3367c6fd6353dab390de8ae620d7c2861408b15023bd6faeb412df0eebe18d5116cd148b3c81f22544854b1a2bf8b5167ca8c2b4a3bf7fca

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4003c587e02b399b424c3843f68d5855

            SHA1

            8930848b1dd62840d7a4571b9ddf0b2988eb0901

            SHA256

            41005a89a6513c16d6ae0a47fa97ca09c9425a98a729b0f565b718a58b4f432d

            SHA512

            ec8e657d53b3f9f729b8806d8afde0fe17a086a65cf2da77cf8ef253acd2f712e43381a0a78518b004584922c94cb389df539ef50bdb6c92e6099e18fbc2b6f3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4003c587e02b399b424c3843f68d5855

            SHA1

            8930848b1dd62840d7a4571b9ddf0b2988eb0901

            SHA256

            41005a89a6513c16d6ae0a47fa97ca09c9425a98a729b0f565b718a58b4f432d

            SHA512

            ec8e657d53b3f9f729b8806d8afde0fe17a086a65cf2da77cf8ef253acd2f712e43381a0a78518b004584922c94cb389df539ef50bdb6c92e6099e18fbc2b6f3

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bd90827885cf621141874ce2b4e4c174

            SHA1

            ee24eded23cbee51ce2cd073ce278ab30f543c61

            SHA256

            455e84afb4865a2147b5a0c256841703a9b3135fcafddfc9468fa450512ce9bb

            SHA512

            d5d529e11ef0812558e207736c57b8ac97b7673f2afe1e0cf105c3da640d28b2bbbb2ae810186d9f1619e595e2bd7820c9f4a2de055fa9a63260cfd2e9cbd9aa

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            201f136a33709e27d79547caebd00cdc

            SHA1

            d9229d35a9fc2bd48293b7e91fb624077aeb0611

            SHA256

            bf0ccc7c4753c91fbc9342ef783d9e0e8d36c09e7e2bea71487916ee937dda2f

            SHA512

            4897e268699697cabdbf9347ac744c1a440dfedc557bcabb788ba03106ed113510ce1f163cca009378c9f15dfe7a3c663f2f0ff2242224b8393317b97e82bafa

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            419268bda19ab230682a19c400ab6f79

            SHA1

            91d1332c22be496ef453b3b451cff013c52105ab

            SHA256

            21c5177480a2d075d1102af33921c50d13eab89fa0a971b34e0317f30ba608b3

            SHA512

            60f54ce1c408f71970332f4d64d565f08038777e6423df6c7d4d8489cb64a105ea8142443d515a46ae38deb20d984a9dcd0c067fece54b1256934421ecf5a94e

          • memory/472-58-0x0000000000000000-mapping.dmp

          • memory/916-81-0x0000000000000000-mapping.dmp

          • memory/944-60-0x0000000000000000-mapping.dmp

          • memory/1140-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1140-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1140-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

            Filesize

            8KB

          • memory/1140-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1160-70-0x0000000000000000-mapping.dmp

          • memory/1184-82-0x0000000000000000-mapping.dmp

          • memory/1464-57-0x0000000000000000-mapping.dmp

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

          • memory/1912-77-0x0000000000000000-mapping.dmp

          • memory/1924-61-0x0000000000000000-mapping.dmp

          • memory/2012-87-0x0000000000000000-mapping.dmp

          • memory/2036-88-0x0000000000000000-mapping.dmp