Analysis

  • max time kernel
    35s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:51

General

  • Target

    dacd03657c592bddb5bb36611b647662cd3b79d7a4f42b0f99ef22bb56dda635.exe

  • Size

    446KB

  • MD5

    5c62673fbd5e077ba7f074490e9e98bb

  • SHA1

    a8e6112d8b2ef5c877ff0a318407d57e97d9f7f7

  • SHA256

    dacd03657c592bddb5bb36611b647662cd3b79d7a4f42b0f99ef22bb56dda635

  • SHA512

    ba3b9237bf93c5054ade4ad19437eab1183a05e074cab5b0b2abc8ae97a10ac82f697577adeae7af5ee6d986d1a4c7019fc115b96fedacc9650deced6707a411

  • SSDEEP

    12288:im3JcDqTISM2liJvkevPsoqg1vCd66NSkfq:im3HISRAMoLvHaq

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\dacd03657c592bddb5bb36611b647662cd3b79d7a4f42b0f99ef22bb56dda635.exe
    "C:\Users\Admin\AppData\Local\Temp\dacd03657c592bddb5bb36611b647662cd3b79d7a4f42b0f99ef22bb56dda635.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:1112
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:908
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1768
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1664
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1624
        • 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:760
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1600
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1984
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1952
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:832
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1432
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1656

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2e5fb676769be1426144e451f7c63288

            SHA1

            1f36f5c491e5a4cb7c3f5452c663a376b0e778fc

            SHA256

            09daddde90e36b3cabdd0c06bce6ed0d326fc73afaaaa12ca1998f56af24f505

            SHA512

            84833c72ce9b1cdf62c7cd3d6fe5827a8e5b2067e99883cbbab66418d5e0dbee2f7ea368f537a36ba3f5ff7e9d6637aac57f9cfbabd6be807b8b2f088446b9a0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4688404e376c5b8a555e89487130cdf7

            SHA1

            0e3113576552f304dc4191de313c958d5ad079fc

            SHA256

            7b7275ac6b4fdb5b40f6a2144a2b7bc44e37095a67330098adb7c7bc0d3a7d77

            SHA512

            ecc88b8af893349648ca70ed76ef36ae49fd42fb30ff15cbee9dce94aa171340c9b321d54e3f1d721c31e34bfb7f28871abc70cc7b30b6b00d4a5798ef7a7b0f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d162274e9f3079be38f6e6cba3f9afe9

            SHA1

            8c92bf453302a3e74722fe8e405499e98e8cbac9

            SHA256

            8056b627e152aec71f4b05b0dd8490971f6fa27855f9fb15cae8f399d8e5e40d

            SHA512

            6ed9def85a488246ae056c1d0c3907aa100cfa33f0af836cbcb63e84646392f2688e988f3f266c9134acfe56da112e8e43f715372d86f4432db6ac0c728496c4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            64bbde32cdb78ce36f0628434dca0979

            SHA1

            555d0cc6f1f6e98fab610a51595eb44ed3fe3493

            SHA256

            8e88cd21b1a5e2dcc6d6afb1f2319a57cad969100b1dec97f66537c2db1aec31

            SHA512

            a8e61d1de0a5705a4900e2622e48181bc8c5fece0f61e61992d2dc6c5104485aded898f89c663db5ba5ee4d5f0779859f68ef050b5b1d74cd6652d491fc23081

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            64bbde32cdb78ce36f0628434dca0979

            SHA1

            555d0cc6f1f6e98fab610a51595eb44ed3fe3493

            SHA256

            8e88cd21b1a5e2dcc6d6afb1f2319a57cad969100b1dec97f66537c2db1aec31

            SHA512

            a8e61d1de0a5705a4900e2622e48181bc8c5fece0f61e61992d2dc6c5104485aded898f89c663db5ba5ee4d5f0779859f68ef050b5b1d74cd6652d491fc23081

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0a66c72edae3b24bf4a12e43a000f719

            SHA1

            4b495fa9199c7930c2e8e5cfbe49665dbc24e496

            SHA256

            7bc14b1483453c7aed13c71f8a26df1d0edf4fe93bcdba4c431fce67014e6979

            SHA512

            b6c1cfd3b6455db806eac25cd703d8248751abd4c12bd380c62273afbbf63a5fa759db36f3f948890bc012110dd1534f5656831a4644272afede835bc7ff430a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0a66c72edae3b24bf4a12e43a000f719

            SHA1

            4b495fa9199c7930c2e8e5cfbe49665dbc24e496

            SHA256

            7bc14b1483453c7aed13c71f8a26df1d0edf4fe93bcdba4c431fce67014e6979

            SHA512

            b6c1cfd3b6455db806eac25cd703d8248751abd4c12bd380c62273afbbf63a5fa759db36f3f948890bc012110dd1534f5656831a4644272afede835bc7ff430a

          • \Users\Admin\AppData\Local\Temp\nsd7FBD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd7FBD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FBD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FBD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd7FBD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2e5fb676769be1426144e451f7c63288

            SHA1

            1f36f5c491e5a4cb7c3f5452c663a376b0e778fc

            SHA256

            09daddde90e36b3cabdd0c06bce6ed0d326fc73afaaaa12ca1998f56af24f505

            SHA512

            84833c72ce9b1cdf62c7cd3d6fe5827a8e5b2067e99883cbbab66418d5e0dbee2f7ea368f537a36ba3f5ff7e9d6637aac57f9cfbabd6be807b8b2f088446b9a0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2e5fb676769be1426144e451f7c63288

            SHA1

            1f36f5c491e5a4cb7c3f5452c663a376b0e778fc

            SHA256

            09daddde90e36b3cabdd0c06bce6ed0d326fc73afaaaa12ca1998f56af24f505

            SHA512

            84833c72ce9b1cdf62c7cd3d6fe5827a8e5b2067e99883cbbab66418d5e0dbee2f7ea368f537a36ba3f5ff7e9d6637aac57f9cfbabd6be807b8b2f088446b9a0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2e5fb676769be1426144e451f7c63288

            SHA1

            1f36f5c491e5a4cb7c3f5452c663a376b0e778fc

            SHA256

            09daddde90e36b3cabdd0c06bce6ed0d326fc73afaaaa12ca1998f56af24f505

            SHA512

            84833c72ce9b1cdf62c7cd3d6fe5827a8e5b2067e99883cbbab66418d5e0dbee2f7ea368f537a36ba3f5ff7e9d6637aac57f9cfbabd6be807b8b2f088446b9a0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4688404e376c5b8a555e89487130cdf7

            SHA1

            0e3113576552f304dc4191de313c958d5ad079fc

            SHA256

            7b7275ac6b4fdb5b40f6a2144a2b7bc44e37095a67330098adb7c7bc0d3a7d77

            SHA512

            ecc88b8af893349648ca70ed76ef36ae49fd42fb30ff15cbee9dce94aa171340c9b321d54e3f1d721c31e34bfb7f28871abc70cc7b30b6b00d4a5798ef7a7b0f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4688404e376c5b8a555e89487130cdf7

            SHA1

            0e3113576552f304dc4191de313c958d5ad079fc

            SHA256

            7b7275ac6b4fdb5b40f6a2144a2b7bc44e37095a67330098adb7c7bc0d3a7d77

            SHA512

            ecc88b8af893349648ca70ed76ef36ae49fd42fb30ff15cbee9dce94aa171340c9b321d54e3f1d721c31e34bfb7f28871abc70cc7b30b6b00d4a5798ef7a7b0f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d162274e9f3079be38f6e6cba3f9afe9

            SHA1

            8c92bf453302a3e74722fe8e405499e98e8cbac9

            SHA256

            8056b627e152aec71f4b05b0dd8490971f6fa27855f9fb15cae8f399d8e5e40d

            SHA512

            6ed9def85a488246ae056c1d0c3907aa100cfa33f0af836cbcb63e84646392f2688e988f3f266c9134acfe56da112e8e43f715372d86f4432db6ac0c728496c4

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            64bbde32cdb78ce36f0628434dca0979

            SHA1

            555d0cc6f1f6e98fab610a51595eb44ed3fe3493

            SHA256

            8e88cd21b1a5e2dcc6d6afb1f2319a57cad969100b1dec97f66537c2db1aec31

            SHA512

            a8e61d1de0a5705a4900e2622e48181bc8c5fece0f61e61992d2dc6c5104485aded898f89c663db5ba5ee4d5f0779859f68ef050b5b1d74cd6652d491fc23081

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0a66c72edae3b24bf4a12e43a000f719

            SHA1

            4b495fa9199c7930c2e8e5cfbe49665dbc24e496

            SHA256

            7bc14b1483453c7aed13c71f8a26df1d0edf4fe93bcdba4c431fce67014e6979

            SHA512

            b6c1cfd3b6455db806eac25cd703d8248751abd4c12bd380c62273afbbf63a5fa759db36f3f948890bc012110dd1534f5656831a4644272afede835bc7ff430a

          • memory/760-75-0x0000000000000000-mapping.dmp

          • memory/832-86-0x0000000000000000-mapping.dmp

          • memory/908-58-0x0000000000000000-mapping.dmp

          • memory/912-57-0x0000000000000000-mapping.dmp

          • memory/1112-54-0x0000000075351000-0x0000000075353000-memory.dmp

            Filesize

            8KB

          • memory/1160-69-0x0000000000000000-mapping.dmp

          • memory/1600-79-0x0000000000000000-mapping.dmp

          • memory/1624-63-0x0000000000000000-mapping.dmp

          • memory/1664-61-0x0000000000000000-mapping.dmp

          • memory/1768-60-0x0000000000000000-mapping.dmp

          • memory/1952-85-0x0000000000000000-mapping.dmp

          • memory/1984-80-0x0000000000000000-mapping.dmp