Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:26

General

  • Target

    54334ada6e684cce410560e71d4e1ee68ba4a528e113f558c84b10f8f14d869d.exe

  • Size

    601KB

  • MD5

    34c2aaba2e3f041f427b16e40b6d6730

  • SHA1

    575236e128e4670121c6e7cae166b5ad6d175f34

  • SHA256

    54334ada6e684cce410560e71d4e1ee68ba4a528e113f558c84b10f8f14d869d

  • SHA512

    431db7d95483cdbb845bcdd258601b0a4a6c065ddd8b13e04cbdd26d3c4fbb4a5d57409ce06ac56fee06274a05079353d936cb36ef24c5f070aa3f359ddf0d67

  • SSDEEP

    12288:1Iny5DYTt5NAmuHFcAIcltCpud7ffuGkG1io+:BUTt5NmHFc/uVG61

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\54334ada6e684cce410560e71d4e1ee68ba4a528e113f558c84b10f8f14d869d.exe
    "C:\Users\Admin\AppData\Local\Temp\54334ada6e684cce410560e71d4e1ee68ba4a528e113f558c84b10f8f14d869d.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:1088
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1112
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2016
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1748
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2024
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1712
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1384
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1036
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1236
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1300
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1312
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:540
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:548

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e52d1808c45934bcb340cd8a180c5d4e

            SHA1

            feaee82e2a8d8f0ea624a896dbe41d23ebabca93

            SHA256

            0a2125feba4d7c75adcf063db205bb821f4985408dd70ba8c41d186dcf6c4033

            SHA512

            b356f4b16edaf34ca3b2330146ab57c9b47d37b816dc0846a35dbc5d46c4674d412592da13b8e7df8796db34ce16037b173f1634083a7dac5ca50e2698a0e114

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a18bf23c291317ec9673c7df34b25d2c

            SHA1

            0e8ab6323132102a97c82cbdcb890805523afdd1

            SHA256

            68e006058e88da9300e13045fe758fca6b79f7391fda43779ed8bccd03e8ad5f

            SHA512

            c619bfccf8ad94a91ec8284cf28ed7bcd8479665ca0684f55762bd80a04ca4c51e5ef18034ee8d775ed67a9482d5747f2e728bcc9b0e506ba7bd7ff425e4a7eb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            827579c55c179e77c4dbeada6c4e1636

            SHA1

            c61b51449613362ffbf2f6bc79774f1cb96b37a4

            SHA256

            a65ed4a41585189c5f82c90613fd77292b18375498585af28cbcb23e04356369

            SHA512

            9d64e309c2f7cac06818bc441845b7043e82798f5f3df08003186fdde55bac094d7df40562bf62a77a3918fd5b9a889eebdb38fd91cc3ae143d7c5ed6cf5e2ab

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            baadc6d7fe37c7ef185e624a74067bff

            SHA1

            d36e768c7246527785f99d4664bf4d83b256b8d9

            SHA256

            524872c61d0e2c27b7d334f226696d4c316f30e09fa8968f57f938def6713382

            SHA512

            e469b7f17506a4029812a2d4b0388d354c9979526a78c51efeab586aacdf44195dd8422d06ae2a669992c1edf126e45b4459eb6d08eb4c775d667264a087d40f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            baadc6d7fe37c7ef185e624a74067bff

            SHA1

            d36e768c7246527785f99d4664bf4d83b256b8d9

            SHA256

            524872c61d0e2c27b7d334f226696d4c316f30e09fa8968f57f938def6713382

            SHA512

            e469b7f17506a4029812a2d4b0388d354c9979526a78c51efeab586aacdf44195dd8422d06ae2a669992c1edf126e45b4459eb6d08eb4c775d667264a087d40f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            51875e4acbfdcae8f31190ea6089f0aa

            SHA1

            370d9e21956184bd84f5bcd108a74a0e39d56251

            SHA256

            53c6b01e6e3ae448171ce90504d47b7af25a4ab94fa061f7cdd7b856fd26d950

            SHA512

            323e3f3189ce6bd6ef778720dadcbc59f892bf1ef3a9ffe71a7a957dddb10d775150dd51d6106976dc3ab035ac689c8ccf743df3e8183c19fcb54acba99ea624

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            51875e4acbfdcae8f31190ea6089f0aa

            SHA1

            370d9e21956184bd84f5bcd108a74a0e39d56251

            SHA256

            53c6b01e6e3ae448171ce90504d47b7af25a4ab94fa061f7cdd7b856fd26d950

            SHA512

            323e3f3189ce6bd6ef778720dadcbc59f892bf1ef3a9ffe71a7a957dddb10d775150dd51d6106976dc3ab035ac689c8ccf743df3e8183c19fcb54acba99ea624

          • \Users\Admin\AppData\Local\Temp\nsi734.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsi734.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi734.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi734.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi734.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e52d1808c45934bcb340cd8a180c5d4e

            SHA1

            feaee82e2a8d8f0ea624a896dbe41d23ebabca93

            SHA256

            0a2125feba4d7c75adcf063db205bb821f4985408dd70ba8c41d186dcf6c4033

            SHA512

            b356f4b16edaf34ca3b2330146ab57c9b47d37b816dc0846a35dbc5d46c4674d412592da13b8e7df8796db34ce16037b173f1634083a7dac5ca50e2698a0e114

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e52d1808c45934bcb340cd8a180c5d4e

            SHA1

            feaee82e2a8d8f0ea624a896dbe41d23ebabca93

            SHA256

            0a2125feba4d7c75adcf063db205bb821f4985408dd70ba8c41d186dcf6c4033

            SHA512

            b356f4b16edaf34ca3b2330146ab57c9b47d37b816dc0846a35dbc5d46c4674d412592da13b8e7df8796db34ce16037b173f1634083a7dac5ca50e2698a0e114

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e52d1808c45934bcb340cd8a180c5d4e

            SHA1

            feaee82e2a8d8f0ea624a896dbe41d23ebabca93

            SHA256

            0a2125feba4d7c75adcf063db205bb821f4985408dd70ba8c41d186dcf6c4033

            SHA512

            b356f4b16edaf34ca3b2330146ab57c9b47d37b816dc0846a35dbc5d46c4674d412592da13b8e7df8796db34ce16037b173f1634083a7dac5ca50e2698a0e114

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a18bf23c291317ec9673c7df34b25d2c

            SHA1

            0e8ab6323132102a97c82cbdcb890805523afdd1

            SHA256

            68e006058e88da9300e13045fe758fca6b79f7391fda43779ed8bccd03e8ad5f

            SHA512

            c619bfccf8ad94a91ec8284cf28ed7bcd8479665ca0684f55762bd80a04ca4c51e5ef18034ee8d775ed67a9482d5747f2e728bcc9b0e506ba7bd7ff425e4a7eb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a18bf23c291317ec9673c7df34b25d2c

            SHA1

            0e8ab6323132102a97c82cbdcb890805523afdd1

            SHA256

            68e006058e88da9300e13045fe758fca6b79f7391fda43779ed8bccd03e8ad5f

            SHA512

            c619bfccf8ad94a91ec8284cf28ed7bcd8479665ca0684f55762bd80a04ca4c51e5ef18034ee8d775ed67a9482d5747f2e728bcc9b0e506ba7bd7ff425e4a7eb

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            827579c55c179e77c4dbeada6c4e1636

            SHA1

            c61b51449613362ffbf2f6bc79774f1cb96b37a4

            SHA256

            a65ed4a41585189c5f82c90613fd77292b18375498585af28cbcb23e04356369

            SHA512

            9d64e309c2f7cac06818bc441845b7043e82798f5f3df08003186fdde55bac094d7df40562bf62a77a3918fd5b9a889eebdb38fd91cc3ae143d7c5ed6cf5e2ab

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            baadc6d7fe37c7ef185e624a74067bff

            SHA1

            d36e768c7246527785f99d4664bf4d83b256b8d9

            SHA256

            524872c61d0e2c27b7d334f226696d4c316f30e09fa8968f57f938def6713382

            SHA512

            e469b7f17506a4029812a2d4b0388d354c9979526a78c51efeab586aacdf44195dd8422d06ae2a669992c1edf126e45b4459eb6d08eb4c775d667264a087d40f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            51875e4acbfdcae8f31190ea6089f0aa

            SHA1

            370d9e21956184bd84f5bcd108a74a0e39d56251

            SHA256

            53c6b01e6e3ae448171ce90504d47b7af25a4ab94fa061f7cdd7b856fd26d950

            SHA512

            323e3f3189ce6bd6ef778720dadcbc59f892bf1ef3a9ffe71a7a957dddb10d775150dd51d6106976dc3ab035ac689c8ccf743df3e8183c19fcb54acba99ea624

          • memory/1036-81-0x0000000000000000-mapping.dmp

          • memory/1088-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1088-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1088-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1088-54-0x0000000075241000-0x0000000075243000-memory.dmp

            Filesize

            8KB

          • memory/1112-59-0x0000000000000000-mapping.dmp

          • memory/1236-82-0x0000000000000000-mapping.dmp

          • memory/1300-87-0x0000000000000000-mapping.dmp

          • memory/1312-88-0x0000000000000000-mapping.dmp

          • memory/1384-77-0x0000000000000000-mapping.dmp

          • memory/1484-58-0x0000000000000000-mapping.dmp

          • memory/1712-71-0x0000000000000000-mapping.dmp

          • memory/1748-62-0x0000000000000000-mapping.dmp

          • memory/2016-61-0x0000000000000000-mapping.dmp

          • memory/2024-64-0x0000000000000000-mapping.dmp