Analysis

  • max time kernel
    42s
  • 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 10:56

General

  • Target

    5954d29fa9d35fd7c101e96c4f80d7a01a1378b23ab9c083542a578d292e8601.exe

  • Size

    445KB

  • MD5

    1553e889e406c81bea5b7cc7edddc87c

  • SHA1

    978ebc4ae4ddf104814132fde11a0567aa35a9f2

  • SHA256

    5954d29fa9d35fd7c101e96c4f80d7a01a1378b23ab9c083542a578d292e8601

  • SHA512

    fca921e1ee9a3fc48e09ac95a0eefa8f9bf8949ebaa5f39a9531e41e0e329ea6c5e6b1125b6452ca329e156eff371543aabad679d5d7e35028a3a3413931dc52

  • SSDEEP

    12288:Ubd36dp6+WbuM3ZIcnotN7tvZdi/LQi4LVbgzsk:Ubh60yM3OPN7rjp2zsk

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\5954d29fa9d35fd7c101e96c4f80d7a01a1378b23ab9c083542a578d292e8601.exe
    "C:\Users\Admin\AppData\Local\Temp\5954d29fa9d35fd7c101e96c4f80d7a01a1378b23ab9c083542a578d292e8601.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:832
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1336
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:936
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1044
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1456
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1328
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:728
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:964
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1552
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1896
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1380

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            91f15727608f98200970a8acf11f00b2

            SHA1

            d9bd252e95d9eccb29264e3c7e5d20e7817ad7e2

            SHA256

            fc478535ca3195e1dafa1354c64e5859bf21b07ca7435f98ef0f129cbbeba403

            SHA512

            d1a9134b0238063c85c52876856e5b8b1f60171a77c21ef1129da0ef6aa29b662e7c11568d14e7a92416a8e5f138e9012f0c923b31b8fc1cacdf1707c3645d07

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e08a694a023c8a54933080c20f365d63

            SHA1

            e4b43703c4841ab864f2559f293ac825e96eeedc

            SHA256

            4fc4adc6a8fe4b899a2e9033591056cd47129a4ae71663c3533ec949d4c4694f

            SHA512

            b374331d9c1b259f3c11238b417e3710f36fda1d38c093ff543af18ec8472a5655687288ca0e9ea491f4dcd10757722619d0448fda846771415e437ebfbd433f

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            7b39cdbe3b49b41176472f14e8876503

            SHA1

            e0a90e09c6f9719788e7135e741590f662c330c0

            SHA256

            ce420961c186ce590641919513c516ba123114979a582261ee374fdb7cabd57c

            SHA512

            e115e3a2b2d4e1ed410e2dea4e8f199666f3492c057e721bb2fd51cffa999db3f4366f90d15a64f74c53f16a9c65e80189f0ec962d263fb43e493b8c0edb49b8

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ee86e6660c701b94ec09dbfbac7c250c

            SHA1

            9b86490e6d27875f9f8fcaad1b780e9c0a912ad6

            SHA256

            b94505e4551c1cbd85f96cb232affa052231e48f561d820816779af531fd51f6

            SHA512

            1de1c652cdff49c9c329e69ba591bf6ea824c299899d3522b525f4fbb41bcf988018ba8e2d4a0b496bb2a3c9c0977e3392a238bd76efa55db9a45ba015cb2b3f

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ee86e6660c701b94ec09dbfbac7c250c

            SHA1

            9b86490e6d27875f9f8fcaad1b780e9c0a912ad6

            SHA256

            b94505e4551c1cbd85f96cb232affa052231e48f561d820816779af531fd51f6

            SHA512

            1de1c652cdff49c9c329e69ba591bf6ea824c299899d3522b525f4fbb41bcf988018ba8e2d4a0b496bb2a3c9c0977e3392a238bd76efa55db9a45ba015cb2b3f

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            687045205db710a1ed2159dcd01f6b3a

            SHA1

            988933ad3f13a250b762f07a8f63b9310ae2f000

            SHA256

            04fa2833aa7b9c63663faedfd955555b2a5823bb306dcae1248c122c76f80ab6

            SHA512

            48fe65addacadb98ca1d28fef2a9417c90ac0c1615191000afba26ec9bec465bb8bd3ab91eb79932cdddf154d87c9035970d23cba140a15fe68e62d88c3f65d9

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            687045205db710a1ed2159dcd01f6b3a

            SHA1

            988933ad3f13a250b762f07a8f63b9310ae2f000

            SHA256

            04fa2833aa7b9c63663faedfd955555b2a5823bb306dcae1248c122c76f80ab6

            SHA512

            48fe65addacadb98ca1d28fef2a9417c90ac0c1615191000afba26ec9bec465bb8bd3ab91eb79932cdddf154d87c9035970d23cba140a15fe68e62d88c3f65d9

          • \Users\Admin\AppData\Local\Temp\nst37D.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst37D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst37D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst37D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst37D.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            91f15727608f98200970a8acf11f00b2

            SHA1

            d9bd252e95d9eccb29264e3c7e5d20e7817ad7e2

            SHA256

            fc478535ca3195e1dafa1354c64e5859bf21b07ca7435f98ef0f129cbbeba403

            SHA512

            d1a9134b0238063c85c52876856e5b8b1f60171a77c21ef1129da0ef6aa29b662e7c11568d14e7a92416a8e5f138e9012f0c923b31b8fc1cacdf1707c3645d07

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            91f15727608f98200970a8acf11f00b2

            SHA1

            d9bd252e95d9eccb29264e3c7e5d20e7817ad7e2

            SHA256

            fc478535ca3195e1dafa1354c64e5859bf21b07ca7435f98ef0f129cbbeba403

            SHA512

            d1a9134b0238063c85c52876856e5b8b1f60171a77c21ef1129da0ef6aa29b662e7c11568d14e7a92416a8e5f138e9012f0c923b31b8fc1cacdf1707c3645d07

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            91f15727608f98200970a8acf11f00b2

            SHA1

            d9bd252e95d9eccb29264e3c7e5d20e7817ad7e2

            SHA256

            fc478535ca3195e1dafa1354c64e5859bf21b07ca7435f98ef0f129cbbeba403

            SHA512

            d1a9134b0238063c85c52876856e5b8b1f60171a77c21ef1129da0ef6aa29b662e7c11568d14e7a92416a8e5f138e9012f0c923b31b8fc1cacdf1707c3645d07

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e08a694a023c8a54933080c20f365d63

            SHA1

            e4b43703c4841ab864f2559f293ac825e96eeedc

            SHA256

            4fc4adc6a8fe4b899a2e9033591056cd47129a4ae71663c3533ec949d4c4694f

            SHA512

            b374331d9c1b259f3c11238b417e3710f36fda1d38c093ff543af18ec8472a5655687288ca0e9ea491f4dcd10757722619d0448fda846771415e437ebfbd433f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e08a694a023c8a54933080c20f365d63

            SHA1

            e4b43703c4841ab864f2559f293ac825e96eeedc

            SHA256

            4fc4adc6a8fe4b899a2e9033591056cd47129a4ae71663c3533ec949d4c4694f

            SHA512

            b374331d9c1b259f3c11238b417e3710f36fda1d38c093ff543af18ec8472a5655687288ca0e9ea491f4dcd10757722619d0448fda846771415e437ebfbd433f

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            7b39cdbe3b49b41176472f14e8876503

            SHA1

            e0a90e09c6f9719788e7135e741590f662c330c0

            SHA256

            ce420961c186ce590641919513c516ba123114979a582261ee374fdb7cabd57c

            SHA512

            e115e3a2b2d4e1ed410e2dea4e8f199666f3492c057e721bb2fd51cffa999db3f4366f90d15a64f74c53f16a9c65e80189f0ec962d263fb43e493b8c0edb49b8

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ee86e6660c701b94ec09dbfbac7c250c

            SHA1

            9b86490e6d27875f9f8fcaad1b780e9c0a912ad6

            SHA256

            b94505e4551c1cbd85f96cb232affa052231e48f561d820816779af531fd51f6

            SHA512

            1de1c652cdff49c9c329e69ba591bf6ea824c299899d3522b525f4fbb41bcf988018ba8e2d4a0b496bb2a3c9c0977e3392a238bd76efa55db9a45ba015cb2b3f

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            687045205db710a1ed2159dcd01f6b3a

            SHA1

            988933ad3f13a250b762f07a8f63b9310ae2f000

            SHA256

            04fa2833aa7b9c63663faedfd955555b2a5823bb306dcae1248c122c76f80ab6

            SHA512

            48fe65addacadb98ca1d28fef2a9417c90ac0c1615191000afba26ec9bec465bb8bd3ab91eb79932cdddf154d87c9035970d23cba140a15fe68e62d88c3f65d9

          • memory/728-80-0x0000000000000000-mapping.dmp
          • memory/832-54-0x0000000075091000-0x0000000075093000-memory.dmp
            Filesize

            8KB

          • memory/936-60-0x0000000000000000-mapping.dmp
          • memory/964-85-0x0000000000000000-mapping.dmp
          • memory/1044-69-0x0000000000000000-mapping.dmp
          • memory/1328-79-0x0000000000000000-mapping.dmp
          • memory/1336-58-0x0000000000000000-mapping.dmp
          • memory/1456-75-0x0000000000000000-mapping.dmp
          • memory/1552-86-0x0000000000000000-mapping.dmp
          • memory/1948-57-0x0000000000000000-mapping.dmp
          • memory/1964-61-0x0000000000000000-mapping.dmp
          • memory/1988-63-0x0000000000000000-mapping.dmp