Analysis

  • max time kernel
    44s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    9716716a243d8e4c2d95726614e22489cbbbae1d40c78af550ff419a27ff0e36.exe

  • Size

    602KB

  • MD5

    69ecec0a4ac499b0c33bf8ca046a406d

  • SHA1

    ec0aac4b1df99cc86522d806a846b55d1f33411a

  • SHA256

    9716716a243d8e4c2d95726614e22489cbbbae1d40c78af550ff419a27ff0e36

  • SHA512

    d83b5b463ca7792f9605bf8e3fa85709069860851d842f9842e0cfc1e455c6240956b6cb327b3a6dec18e60ed89a613276dd02bfb896b2e6c75c4ee21ff8da4e

  • SSDEEP

    12288:WIny5DYTuII13VN9KsqrBTLbxHp4oCMbR+l7mESbbm0CQdj:YUTuIK3pKxZbxH/1Lb3

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\9716716a243d8e4c2d95726614e22489cbbbae1d40c78af550ff419a27ff0e36.exe
    "C:\Users\Admin\AppData\Local\Temp\9716716a243d8e4c2d95726614e22489cbbbae1d40c78af550ff419a27ff0e36.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:1940
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1068
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:560
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1880
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1508
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1876
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1376
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1464
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1948
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1116
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1628
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:552
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1636
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:908

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            621eede44d0c700a6efbbd18836ccc47

            SHA1

            b2092a1bfd350a914a333e0ff119a486aadfaafb

            SHA256

            34b0e4e6d27f52bd6917908942944965a8244e22809098fe546ecd3c89617388

            SHA512

            5f59bbd891e2272715b665883f49d911d331e2ba1e70a77a9c960b68a79c1c551a8c316994303ee98e9829e467a2147faaf36ad72abaec2ed7d9147ba013f0e9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e03f3ae4fdb6004d8573de533796a54

            SHA1

            b50da0fdc01643e8862d55cdb48135131f1d7b8e

            SHA256

            5c5c625f7d7bc3a601bc6a2b99afcff8f5992ef45c90463c888cf4b49f54bc06

            SHA512

            cbd2f6a7c399233f392789756535292118479be8a8821a59e56a1a2800faa012ac9722995f020c66963a135abf8af33f77ba72cd7d11e553703845642329d80f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            23a963c6d805ee6db98ecc31e1b9c53a

            SHA1

            6b3bac52e1278caea90ea424b072488bb12fd2ea

            SHA256

            e81cc6087a7495bd234c338f9a2c772eb488d3cae87bebd62c4e309e33bcb885

            SHA512

            2175c6be7e2571c32bc7d3526c802309d2cdb8e9c14632d386b0353af759cbdbcb16cc5d20eeb9ff79fa2f4f4c7cd82e4946b74a7be4f38f332b21a9c6d6bf82

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            560cbe0e52b3340066343b1e4a345a93

            SHA1

            c3ca7be823174cfb4acd017c3e0284f1f7d24aa7

            SHA256

            869ed5e0a65583dffcafd1873e2c4f54d9d4f1b6ca3ea66eebc08836e655dde2

            SHA512

            0707ce95ed2d806096e90b63dbd761f6c9094e7f9c0e492a8e85ec42ca86d44dea45c373518144073623bf1085b9cba35d5474f8df0c092b5f6dc548f10d47b5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            560cbe0e52b3340066343b1e4a345a93

            SHA1

            c3ca7be823174cfb4acd017c3e0284f1f7d24aa7

            SHA256

            869ed5e0a65583dffcafd1873e2c4f54d9d4f1b6ca3ea66eebc08836e655dde2

            SHA512

            0707ce95ed2d806096e90b63dbd761f6c9094e7f9c0e492a8e85ec42ca86d44dea45c373518144073623bf1085b9cba35d5474f8df0c092b5f6dc548f10d47b5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d01019d8437868598975e8040a96839c

            SHA1

            b3336fade932f23979f43932d6b5ea0d2ad68691

            SHA256

            c59a46f6961671b8aa72f225d96ce7dc548d6cf8aa4a11ab60d2ab0b70974156

            SHA512

            452a179ff6f1de4bc37f347d8232a7fe4a7a85d238178df19dcd2179d79e4ac752cbcfa7598d555cc25d4dc7be4a89516d6d24d81e466dac676b2af3fe6ff894

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d01019d8437868598975e8040a96839c

            SHA1

            b3336fade932f23979f43932d6b5ea0d2ad68691

            SHA256

            c59a46f6961671b8aa72f225d96ce7dc548d6cf8aa4a11ab60d2ab0b70974156

            SHA512

            452a179ff6f1de4bc37f347d8232a7fe4a7a85d238178df19dcd2179d79e4ac752cbcfa7598d555cc25d4dc7be4a89516d6d24d81e466dac676b2af3fe6ff894

          • \Users\Admin\AppData\Local\Temp\nst31BD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst31BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst31BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst31BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst31BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            621eede44d0c700a6efbbd18836ccc47

            SHA1

            b2092a1bfd350a914a333e0ff119a486aadfaafb

            SHA256

            34b0e4e6d27f52bd6917908942944965a8244e22809098fe546ecd3c89617388

            SHA512

            5f59bbd891e2272715b665883f49d911d331e2ba1e70a77a9c960b68a79c1c551a8c316994303ee98e9829e467a2147faaf36ad72abaec2ed7d9147ba013f0e9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            621eede44d0c700a6efbbd18836ccc47

            SHA1

            b2092a1bfd350a914a333e0ff119a486aadfaafb

            SHA256

            34b0e4e6d27f52bd6917908942944965a8244e22809098fe546ecd3c89617388

            SHA512

            5f59bbd891e2272715b665883f49d911d331e2ba1e70a77a9c960b68a79c1c551a8c316994303ee98e9829e467a2147faaf36ad72abaec2ed7d9147ba013f0e9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            621eede44d0c700a6efbbd18836ccc47

            SHA1

            b2092a1bfd350a914a333e0ff119a486aadfaafb

            SHA256

            34b0e4e6d27f52bd6917908942944965a8244e22809098fe546ecd3c89617388

            SHA512

            5f59bbd891e2272715b665883f49d911d331e2ba1e70a77a9c960b68a79c1c551a8c316994303ee98e9829e467a2147faaf36ad72abaec2ed7d9147ba013f0e9

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e03f3ae4fdb6004d8573de533796a54

            SHA1

            b50da0fdc01643e8862d55cdb48135131f1d7b8e

            SHA256

            5c5c625f7d7bc3a601bc6a2b99afcff8f5992ef45c90463c888cf4b49f54bc06

            SHA512

            cbd2f6a7c399233f392789756535292118479be8a8821a59e56a1a2800faa012ac9722995f020c66963a135abf8af33f77ba72cd7d11e553703845642329d80f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4e03f3ae4fdb6004d8573de533796a54

            SHA1

            b50da0fdc01643e8862d55cdb48135131f1d7b8e

            SHA256

            5c5c625f7d7bc3a601bc6a2b99afcff8f5992ef45c90463c888cf4b49f54bc06

            SHA512

            cbd2f6a7c399233f392789756535292118479be8a8821a59e56a1a2800faa012ac9722995f020c66963a135abf8af33f77ba72cd7d11e553703845642329d80f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            23a963c6d805ee6db98ecc31e1b9c53a

            SHA1

            6b3bac52e1278caea90ea424b072488bb12fd2ea

            SHA256

            e81cc6087a7495bd234c338f9a2c772eb488d3cae87bebd62c4e309e33bcb885

            SHA512

            2175c6be7e2571c32bc7d3526c802309d2cdb8e9c14632d386b0353af759cbdbcb16cc5d20eeb9ff79fa2f4f4c7cd82e4946b74a7be4f38f332b21a9c6d6bf82

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            560cbe0e52b3340066343b1e4a345a93

            SHA1

            c3ca7be823174cfb4acd017c3e0284f1f7d24aa7

            SHA256

            869ed5e0a65583dffcafd1873e2c4f54d9d4f1b6ca3ea66eebc08836e655dde2

            SHA512

            0707ce95ed2d806096e90b63dbd761f6c9094e7f9c0e492a8e85ec42ca86d44dea45c373518144073623bf1085b9cba35d5474f8df0c092b5f6dc548f10d47b5

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d01019d8437868598975e8040a96839c

            SHA1

            b3336fade932f23979f43932d6b5ea0d2ad68691

            SHA256

            c59a46f6961671b8aa72f225d96ce7dc548d6cf8aa4a11ab60d2ab0b70974156

            SHA512

            452a179ff6f1de4bc37f347d8232a7fe4a7a85d238178df19dcd2179d79e4ac752cbcfa7598d555cc25d4dc7be4a89516d6d24d81e466dac676b2af3fe6ff894

          • memory/552-88-0x0000000000000000-mapping.dmp

          • memory/560-59-0x0000000000000000-mapping.dmp

          • memory/1068-58-0x0000000000000000-mapping.dmp

          • memory/1116-82-0x0000000000000000-mapping.dmp

          • memory/1376-70-0x0000000000000000-mapping.dmp

          • memory/1464-77-0x0000000000000000-mapping.dmp

          • memory/1508-62-0x0000000000000000-mapping.dmp

          • memory/1628-87-0x0000000000000000-mapping.dmp

          • memory/1876-64-0x0000000000000000-mapping.dmp

          • memory/1880-61-0x0000000000000000-mapping.dmp

          • memory/1940-54-0x0000000075761000-0x0000000075763000-memory.dmp

            Filesize

            8KB

          • memory/1940-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1940-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1940-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1948-81-0x0000000000000000-mapping.dmp