Analysis

  • max time kernel
    181s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:13

General

  • Target

    bee31844efaee0001cb715fccb11f1685a0e7f6683e35f9dc7d72fef595d02a5.exe

  • Size

    602KB

  • MD5

    84ff51f5eb2a2f442ce9a0cc8ae2e540

  • SHA1

    b4cff52ea38ea8f2db36ed011b8fe519a5ed8fd1

  • SHA256

    bee31844efaee0001cb715fccb11f1685a0e7f6683e35f9dc7d72fef595d02a5

  • SHA512

    5d579d1bb5ec7e2783ace980fe1cfa53c05987dabbc50067281ea2d5b6ef8811af9b98cb287b4c083faec24d981d391418e4f582d04cf20b4f1362c6964847e2

  • SSDEEP

    12288:dIny5DYTcIJvZF86xbGjeotEM1490Ix101z5w:JUTcCPNgjewEM1xfw

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bee31844efaee0001cb715fccb11f1685a0e7f6683e35f9dc7d72fef595d02a5.exe
    "C:\Users\Admin\AppData\Local\Temp\bee31844efaee0001cb715fccb11f1685a0e7f6683e35f9dc7d72fef595d02a5.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:3396
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1828
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4612
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3084
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2376
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4688
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4372
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3324
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2840
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4544
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3824
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3796

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx80F9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3aeaff51bf0b3fef1b8e46b9af82d75c

            SHA1

            bf82dd31e5b13718799a02aaeaffe928381e907b

            SHA256

            3ba56bdf5e09ebb691f1422cfc06b98ef88668cac76f9a430fb2e0cc63ef43c4

            SHA512

            2dcce3e2cb43c2a18e5fe6b9702cb19278912e2511b29a0bce28a6626b93e747b2058988db04dad7b0955accb8d7a729d030d75a5a41c760b4bb50c3d0488301

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3aeaff51bf0b3fef1b8e46b9af82d75c

            SHA1

            bf82dd31e5b13718799a02aaeaffe928381e907b

            SHA256

            3ba56bdf5e09ebb691f1422cfc06b98ef88668cac76f9a430fb2e0cc63ef43c4

            SHA512

            2dcce3e2cb43c2a18e5fe6b9702cb19278912e2511b29a0bce28a6626b93e747b2058988db04dad7b0955accb8d7a729d030d75a5a41c760b4bb50c3d0488301

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3aeaff51bf0b3fef1b8e46b9af82d75c

            SHA1

            bf82dd31e5b13718799a02aaeaffe928381e907b

            SHA256

            3ba56bdf5e09ebb691f1422cfc06b98ef88668cac76f9a430fb2e0cc63ef43c4

            SHA512

            2dcce3e2cb43c2a18e5fe6b9702cb19278912e2511b29a0bce28a6626b93e747b2058988db04dad7b0955accb8d7a729d030d75a5a41c760b4bb50c3d0488301

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3aeaff51bf0b3fef1b8e46b9af82d75c

            SHA1

            bf82dd31e5b13718799a02aaeaffe928381e907b

            SHA256

            3ba56bdf5e09ebb691f1422cfc06b98ef88668cac76f9a430fb2e0cc63ef43c4

            SHA512

            2dcce3e2cb43c2a18e5fe6b9702cb19278912e2511b29a0bce28a6626b93e747b2058988db04dad7b0955accb8d7a729d030d75a5a41c760b4bb50c3d0488301

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8f20f781a8abcf2a91d061252cecad75

            SHA1

            6225fc032db98e882cf816b66e6f04e8de89a316

            SHA256

            a9a2d9f32ad0f388637ca78698e215cc77cb565130f096ed095bf8f13de5dc53

            SHA512

            a24c94aa41c128fabe137a70a739e2e8a47ff639aedbfb783633b8fbf738787d434703646dca9f510d6ceae90b244ea773ff7acd8733562bb0047c4ee485ae3c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8f20f781a8abcf2a91d061252cecad75

            SHA1

            6225fc032db98e882cf816b66e6f04e8de89a316

            SHA256

            a9a2d9f32ad0f388637ca78698e215cc77cb565130f096ed095bf8f13de5dc53

            SHA512

            a24c94aa41c128fabe137a70a739e2e8a47ff639aedbfb783633b8fbf738787d434703646dca9f510d6ceae90b244ea773ff7acd8733562bb0047c4ee485ae3c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            8f20f781a8abcf2a91d061252cecad75

            SHA1

            6225fc032db98e882cf816b66e6f04e8de89a316

            SHA256

            a9a2d9f32ad0f388637ca78698e215cc77cb565130f096ed095bf8f13de5dc53

            SHA512

            a24c94aa41c128fabe137a70a739e2e8a47ff639aedbfb783633b8fbf738787d434703646dca9f510d6ceae90b244ea773ff7acd8733562bb0047c4ee485ae3c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b3dc3e29aea4cd13c70705643bb6c894

            SHA1

            c707df7c7a5e6f71ba5f5845e045af2e1b668678

            SHA256

            156e444695b96735ccea7365d79522aa7e7a70310a2c94588b3370f9a8a55469

            SHA512

            4a49feb345fb0dc37d57d603ba5401c089ed0a2a19680a55faaf229d0ea6a5782c56d5fe29fa332f09ff9ba8a6bf53b581d7e9331100c571226147dceed8814a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b3dc3e29aea4cd13c70705643bb6c894

            SHA1

            c707df7c7a5e6f71ba5f5845e045af2e1b668678

            SHA256

            156e444695b96735ccea7365d79522aa7e7a70310a2c94588b3370f9a8a55469

            SHA512

            4a49feb345fb0dc37d57d603ba5401c089ed0a2a19680a55faaf229d0ea6a5782c56d5fe29fa332f09ff9ba8a6bf53b581d7e9331100c571226147dceed8814a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            93cc50970d5679d4cb710f35ca72b142

            SHA1

            b36e0b44f7be53dafbc4ee169c70a46bfb96fd57

            SHA256

            70e3d3e11f3cb6ea98d483361f8a1049a041ac67fe9e8450afc30409f3a9dc35

            SHA512

            9829c3b6202ef7d6fc4e4ff2e0ac322fe2b39fc50e240ea95e4e21327a837b235da79c7b57b674471c4579648497efeffecd08f1b0e92cdb038b952637a65537

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            93cc50970d5679d4cb710f35ca72b142

            SHA1

            b36e0b44f7be53dafbc4ee169c70a46bfb96fd57

            SHA256

            70e3d3e11f3cb6ea98d483361f8a1049a041ac67fe9e8450afc30409f3a9dc35

            SHA512

            9829c3b6202ef7d6fc4e4ff2e0ac322fe2b39fc50e240ea95e4e21327a837b235da79c7b57b674471c4579648497efeffecd08f1b0e92cdb038b952637a65537

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            93cc50970d5679d4cb710f35ca72b142

            SHA1

            b36e0b44f7be53dafbc4ee169c70a46bfb96fd57

            SHA256

            70e3d3e11f3cb6ea98d483361f8a1049a041ac67fe9e8450afc30409f3a9dc35

            SHA512

            9829c3b6202ef7d6fc4e4ff2e0ac322fe2b39fc50e240ea95e4e21327a837b235da79c7b57b674471c4579648497efeffecd08f1b0e92cdb038b952637a65537

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            954e8378626bb46ffd8c5395c1f0e3f5

            SHA1

            73d547f45d1f817c79cda9ed4285f8ef57ea3b9c

            SHA256

            5e11a606e37e570bfa924a77e168aca278d71853956061d1af6b9055a1a34d73

            SHA512

            61f68936ea50f8505dfbca92c5ebcf61968be4fb26f7c001235a3dd665fff3fe27dacabdada9816bda54b8597ec5893ed4110c4bad235fb9d788b3d3888920f1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            954e8378626bb46ffd8c5395c1f0e3f5

            SHA1

            73d547f45d1f817c79cda9ed4285f8ef57ea3b9c

            SHA256

            5e11a606e37e570bfa924a77e168aca278d71853956061d1af6b9055a1a34d73

            SHA512

            61f68936ea50f8505dfbca92c5ebcf61968be4fb26f7c001235a3dd665fff3fe27dacabdada9816bda54b8597ec5893ed4110c4bad235fb9d788b3d3888920f1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            954e8378626bb46ffd8c5395c1f0e3f5

            SHA1

            73d547f45d1f817c79cda9ed4285f8ef57ea3b9c

            SHA256

            5e11a606e37e570bfa924a77e168aca278d71853956061d1af6b9055a1a34d73

            SHA512

            61f68936ea50f8505dfbca92c5ebcf61968be4fb26f7c001235a3dd665fff3fe27dacabdada9816bda54b8597ec5893ed4110c4bad235fb9d788b3d3888920f1

          • memory/316-136-0x0000000000000000-mapping.dmp

          • memory/1828-137-0x0000000000000000-mapping.dmp

          • memory/2376-147-0x0000000000000000-mapping.dmp

          • memory/2640-141-0x0000000000000000-mapping.dmp

          • memory/2840-165-0x0000000000000000-mapping.dmp

          • memory/3084-142-0x0000000000000000-mapping.dmp

          • memory/3324-159-0x0000000000000000-mapping.dmp

          • memory/3396-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3396-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4372-158-0x0000000000000000-mapping.dmp

          • memory/4544-166-0x0000000000000000-mapping.dmp

          • memory/4612-140-0x0000000000000000-mapping.dmp

          • memory/4688-153-0x0000000000000000-mapping.dmp