Analysis

  • max time kernel
    102s
  • 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 10:55

General

  • Target

    70766281544073d5598719dfff0c00e2bf990f07296487df87bb09f050930662.exe

  • Size

    447KB

  • MD5

    bbae1a4a2e65499349e339b460b8dc4e

  • SHA1

    c9a90f69c7c312628a08710a9ec2b46c7a6e33be

  • SHA256

    70766281544073d5598719dfff0c00e2bf990f07296487df87bb09f050930662

  • SHA512

    ef2b2ee67cd3040a573f8231c13ac50e6a49554075554909d6f46081e9fd6d7a78093e95657393c9475246b06b91e19f5ba1b3390153852d47e7dc21fc367f39

  • SSDEEP

    12288:slAp73LPSISkiMZR7h7ppWoeWp7QsD/dkx:slAp7bPSI7ZRtLjr7Sx

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\70766281544073d5598719dfff0c00e2bf990f07296487df87bb09f050930662.exe
    "C:\Users\Admin\AppData\Local\Temp\70766281544073d5598719dfff0c00e2bf990f07296487df87bb09f050930662.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:1456
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1068
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:580
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:900
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:268
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1016
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:828
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1568
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:240
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1412
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:480
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1884
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1732

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            db63a4075b7a5eb935b6ea621c134110

            SHA1

            7a3d16f69b69358d7768bfe2c3ccb26530746984

            SHA256

            c7811fe8d0f6d6f2c38b4409c8d64529023a8172b726f73dce17068a37545d09

            SHA512

            3758634b37db8cbf8911681ef2db1ce96809f42f19bbe8b9ef17c34799d37a27c212bf8558a4159994ba8503bc3a9256bd2f282775207bf99db0f61b82e80726

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04ae1b531426b925a97a0a1b7ad3caac

            SHA1

            a4f45009b67e7c602c04b622d11bd2a6daaa1477

            SHA256

            377a6972c11b0873da7008ee5d5a0cd068c162c509ecf624d11579d1bc61c9b0

            SHA512

            55c39b68ab7613c47e67bd377cc102d58902bc859c11adb9d99378c8e24a053226b240d2035dadeea299823744101b5055839cc22e120d0067662ac7da28846b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dfeb64b859a384ef957b703234cfd465

            SHA1

            859f04d50a25bb9ae6979739be124b247581f4eb

            SHA256

            17a5a334dcbf9be22502d12633c674274a2744052d20e56b9a20e3c1656d9597

            SHA512

            7fa0c313dc5438032d0a72044bf51ad818f4e1df5a27ff1c3a4e69a3ce22a0b1430cd86264225623e44f72aae60963a61892aaa33dff4d8ab7fe96fce5feb899

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfd691b0b6737054d21cc117e99eefcf

            SHA1

            7d52ed2d7df2c65c7e9e5c16ba05662803c3a496

            SHA256

            7a472c60b0c2c37225bc9e538fddb084694e61f6c4a95b55f56e08c347f585a4

            SHA512

            7b860adc695974928669acaa2d6d1ca1fc0ddf67cc8fa71432e3bf6b5e59840b751eb1b3fd96bdcaa9a3fdf914539d446cfe6011de83503673a39658de21528e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfd691b0b6737054d21cc117e99eefcf

            SHA1

            7d52ed2d7df2c65c7e9e5c16ba05662803c3a496

            SHA256

            7a472c60b0c2c37225bc9e538fddb084694e61f6c4a95b55f56e08c347f585a4

            SHA512

            7b860adc695974928669acaa2d6d1ca1fc0ddf67cc8fa71432e3bf6b5e59840b751eb1b3fd96bdcaa9a3fdf914539d446cfe6011de83503673a39658de21528e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27dfcb416182a91ec5ed1cc0f638893f

            SHA1

            28e77df41724e5482fa55b6d19a9c05e90f7a9de

            SHA256

            2ffdaaa2d121d5bc3495ed38d8769b19d0501e7cbd7aa9c6fed0fc335f608fbe

            SHA512

            229317445be21dfe4598241edf826de81bfa50e37db71b88d93ae85e2fd27794c044a77fea18511dd9cbe8c77cd40634678e20682a581185e8ce35df23f4ddca

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27dfcb416182a91ec5ed1cc0f638893f

            SHA1

            28e77df41724e5482fa55b6d19a9c05e90f7a9de

            SHA256

            2ffdaaa2d121d5bc3495ed38d8769b19d0501e7cbd7aa9c6fed0fc335f608fbe

            SHA512

            229317445be21dfe4598241edf826de81bfa50e37db71b88d93ae85e2fd27794c044a77fea18511dd9cbe8c77cd40634678e20682a581185e8ce35df23f4ddca

          • \Users\Admin\AppData\Local\Temp\nstF569.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstF569.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF569.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF569.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstF569.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            db63a4075b7a5eb935b6ea621c134110

            SHA1

            7a3d16f69b69358d7768bfe2c3ccb26530746984

            SHA256

            c7811fe8d0f6d6f2c38b4409c8d64529023a8172b726f73dce17068a37545d09

            SHA512

            3758634b37db8cbf8911681ef2db1ce96809f42f19bbe8b9ef17c34799d37a27c212bf8558a4159994ba8503bc3a9256bd2f282775207bf99db0f61b82e80726

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            db63a4075b7a5eb935b6ea621c134110

            SHA1

            7a3d16f69b69358d7768bfe2c3ccb26530746984

            SHA256

            c7811fe8d0f6d6f2c38b4409c8d64529023a8172b726f73dce17068a37545d09

            SHA512

            3758634b37db8cbf8911681ef2db1ce96809f42f19bbe8b9ef17c34799d37a27c212bf8558a4159994ba8503bc3a9256bd2f282775207bf99db0f61b82e80726

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            db63a4075b7a5eb935b6ea621c134110

            SHA1

            7a3d16f69b69358d7768bfe2c3ccb26530746984

            SHA256

            c7811fe8d0f6d6f2c38b4409c8d64529023a8172b726f73dce17068a37545d09

            SHA512

            3758634b37db8cbf8911681ef2db1ce96809f42f19bbe8b9ef17c34799d37a27c212bf8558a4159994ba8503bc3a9256bd2f282775207bf99db0f61b82e80726

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04ae1b531426b925a97a0a1b7ad3caac

            SHA1

            a4f45009b67e7c602c04b622d11bd2a6daaa1477

            SHA256

            377a6972c11b0873da7008ee5d5a0cd068c162c509ecf624d11579d1bc61c9b0

            SHA512

            55c39b68ab7613c47e67bd377cc102d58902bc859c11adb9d99378c8e24a053226b240d2035dadeea299823744101b5055839cc22e120d0067662ac7da28846b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04ae1b531426b925a97a0a1b7ad3caac

            SHA1

            a4f45009b67e7c602c04b622d11bd2a6daaa1477

            SHA256

            377a6972c11b0873da7008ee5d5a0cd068c162c509ecf624d11579d1bc61c9b0

            SHA512

            55c39b68ab7613c47e67bd377cc102d58902bc859c11adb9d99378c8e24a053226b240d2035dadeea299823744101b5055839cc22e120d0067662ac7da28846b

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            dfeb64b859a384ef957b703234cfd465

            SHA1

            859f04d50a25bb9ae6979739be124b247581f4eb

            SHA256

            17a5a334dcbf9be22502d12633c674274a2744052d20e56b9a20e3c1656d9597

            SHA512

            7fa0c313dc5438032d0a72044bf51ad818f4e1df5a27ff1c3a4e69a3ce22a0b1430cd86264225623e44f72aae60963a61892aaa33dff4d8ab7fe96fce5feb899

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            bfd691b0b6737054d21cc117e99eefcf

            SHA1

            7d52ed2d7df2c65c7e9e5c16ba05662803c3a496

            SHA256

            7a472c60b0c2c37225bc9e538fddb084694e61f6c4a95b55f56e08c347f585a4

            SHA512

            7b860adc695974928669acaa2d6d1ca1fc0ddf67cc8fa71432e3bf6b5e59840b751eb1b3fd96bdcaa9a3fdf914539d446cfe6011de83503673a39658de21528e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            27dfcb416182a91ec5ed1cc0f638893f

            SHA1

            28e77df41724e5482fa55b6d19a9c05e90f7a9de

            SHA256

            2ffdaaa2d121d5bc3495ed38d8769b19d0501e7cbd7aa9c6fed0fc335f608fbe

            SHA512

            229317445be21dfe4598241edf826de81bfa50e37db71b88d93ae85e2fd27794c044a77fea18511dd9cbe8c77cd40634678e20682a581185e8ce35df23f4ddca

          • memory/240-80-0x0000000000000000-mapping.dmp

          • memory/268-63-0x0000000000000000-mapping.dmp

          • memory/480-86-0x0000000000000000-mapping.dmp

          • memory/580-60-0x0000000000000000-mapping.dmp

          • memory/828-75-0x0000000000000000-mapping.dmp

          • memory/900-61-0x0000000000000000-mapping.dmp

          • memory/1016-69-0x0000000000000000-mapping.dmp

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

          • memory/1224-57-0x0000000000000000-mapping.dmp

          • memory/1412-85-0x0000000000000000-mapping.dmp

          • memory/1456-54-0x00000000766F1000-0x00000000766F3000-memory.dmp

            Filesize

            8KB

          • memory/1568-79-0x0000000000000000-mapping.dmp