Analysis

  • max time kernel
    223s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:51

General

  • Target

    e111bc995f884673f8bfc63c8013cbb9820d999c8701312f51a373be73c709c2.exe

  • Size

    446KB

  • MD5

    a1c9da10d54500bfbb1fdab3d729c680

  • SHA1

    d73cec752bbec3320f7b7de5d6b147fabef2a382

  • SHA256

    e111bc995f884673f8bfc63c8013cbb9820d999c8701312f51a373be73c709c2

  • SHA512

    ecb37be8c70c2fb84007461725eeab914fc134935bd48392e5adf5ce4daefe8d1ba50824a40cf025b0c47269540e176adbed68f27d22d6f59f0b790f1437891a

  • SSDEEP

    6144:XzfdqcTgGnQsJikcFkFC8OWx/cn/3d8aLz2CmJneQdMx1REzyvEWXIdwd99SE/Kb:Rq9GQsJi9k43fd951QdKQAEWXjVzBXE

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 WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e111bc995f884673f8bfc63c8013cbb9820d999c8701312f51a373be73c709c2.exe
    "C:\Users\Admin\AppData\Local\Temp\e111bc995f884673f8bfc63c8013cbb9820d999c8701312f51a373be73c709c2.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:1580
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1240
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:560
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:688
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:788
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1664
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:272
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1744
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:548
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1432
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1888
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:1404
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1032

          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

            cb1e0067d0364d81d34f4ec73fd658c2

            SHA1

            04b3c3a0ba7e198cd2bfc8da251c8d281499a23c

            SHA256

            e8a057110e81cb452cf679c7f65f35a5b33f34ea8648dd6cd48ae4a42fd6d8e4

            SHA512

            4808c1f5a1f034de6f795aecc98ec6b612f2381352defcf3b15ae04214c160251a49db6fb3f387f5c0d0b4753e721770e940f424660f98a47535ec682f027f69

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

            241KB

            MD5

            362a62a3fd05d958fa6a70f57b0cce0e

            SHA1

            66657f2398d90a830fda9cd152ea287035df2090

            SHA256

            a6bcbeee56f41e279e467ef9fc1eb0187ff031394d8faabdcdbdb6eb8ad0cdc8

            SHA512

            f83e3b6b789b36c7d7808e0ea5ff428b4de21308cc9633ff3ff21f31dabb02b10dacd6236237d58ade0c7ffdffd6fea7922c395e35c3f8f3302187a28af727d8

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

            108KB

            MD5

            38a7bd524189fd2f5cee9e4fa0f0f99a

            SHA1

            b9e87ac07ddbe20c1eeb3b69d7e3fb0f47e86cdd

            SHA256

            c2175733dc9f056a4adda4b70508f18158a999bba100f5389a184bc2593b3c47

            SHA512

            94d353813f5212072b1ba0f68a73de4be05b2c285b1c2c183778e0be61ef2b27339518633597dbda909f133da33abadc7fb1fd5f67810b560a51f5ba6b7a0d38

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

            176KB

            MD5

            9ccf38931a50e7f70599f1a02f33223c

            SHA1

            d2d5433ef2a97b6f1785a8df32595e6fa93d26c0

            SHA256

            52048be2b84c02d9931a9456a9fe22eee6f1a3a2c4239a90d3d9f4559a743f03

            SHA512

            17cf2f681d325d59f6e6691910efed70876a385ff4191f8aa93d5d0846a5ebf9dc2bf50eeab4f9055440cf591021ee8d12fc027b8180f734eb9af63af644ef90

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

            176KB

            MD5

            9ccf38931a50e7f70599f1a02f33223c

            SHA1

            d2d5433ef2a97b6f1785a8df32595e6fa93d26c0

            SHA256

            52048be2b84c02d9931a9456a9fe22eee6f1a3a2c4239a90d3d9f4559a743f03

            SHA512

            17cf2f681d325d59f6e6691910efed70876a385ff4191f8aa93d5d0846a5ebf9dc2bf50eeab4f9055440cf591021ee8d12fc027b8180f734eb9af63af644ef90

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

            159KB

            MD5

            c7d06371a85a30e7e6d75f5c13932d20

            SHA1

            373421f0af274908580c6cc90b56994ecf6107f9

            SHA256

            047e42b93f58a119cd1d9f1ff9e64e6433339d6b00e05e82db95f5aa5049988b

            SHA512

            2ff03694b5cf62a42f41c131002a82bfd20b4efc66e8156bc75788d417f3f7d7e71f67ac2ecaf2bfcdd5cf88ba1de8af244b3aaa3cf02b19cc07b049304f53d0

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

            159KB

            MD5

            c7d06371a85a30e7e6d75f5c13932d20

            SHA1

            373421f0af274908580c6cc90b56994ecf6107f9

            SHA256

            047e42b93f58a119cd1d9f1ff9e64e6433339d6b00e05e82db95f5aa5049988b

            SHA512

            2ff03694b5cf62a42f41c131002a82bfd20b4efc66e8156bc75788d417f3f7d7e71f67ac2ecaf2bfcdd5cf88ba1de8af244b3aaa3cf02b19cc07b049304f53d0

          • \Users\Admin\AppData\Local\Temp\nsp5B9B.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsp5B9B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp5B9B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp5B9B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp5B9B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cb1e0067d0364d81d34f4ec73fd658c2

            SHA1

            04b3c3a0ba7e198cd2bfc8da251c8d281499a23c

            SHA256

            e8a057110e81cb452cf679c7f65f35a5b33f34ea8648dd6cd48ae4a42fd6d8e4

            SHA512

            4808c1f5a1f034de6f795aecc98ec6b612f2381352defcf3b15ae04214c160251a49db6fb3f387f5c0d0b4753e721770e940f424660f98a47535ec682f027f69

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cb1e0067d0364d81d34f4ec73fd658c2

            SHA1

            04b3c3a0ba7e198cd2bfc8da251c8d281499a23c

            SHA256

            e8a057110e81cb452cf679c7f65f35a5b33f34ea8648dd6cd48ae4a42fd6d8e4

            SHA512

            4808c1f5a1f034de6f795aecc98ec6b612f2381352defcf3b15ae04214c160251a49db6fb3f387f5c0d0b4753e721770e940f424660f98a47535ec682f027f69

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            cb1e0067d0364d81d34f4ec73fd658c2

            SHA1

            04b3c3a0ba7e198cd2bfc8da251c8d281499a23c

            SHA256

            e8a057110e81cb452cf679c7f65f35a5b33f34ea8648dd6cd48ae4a42fd6d8e4

            SHA512

            4808c1f5a1f034de6f795aecc98ec6b612f2381352defcf3b15ae04214c160251a49db6fb3f387f5c0d0b4753e721770e940f424660f98a47535ec682f027f69

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            362a62a3fd05d958fa6a70f57b0cce0e

            SHA1

            66657f2398d90a830fda9cd152ea287035df2090

            SHA256

            a6bcbeee56f41e279e467ef9fc1eb0187ff031394d8faabdcdbdb6eb8ad0cdc8

            SHA512

            f83e3b6b789b36c7d7808e0ea5ff428b4de21308cc9633ff3ff21f31dabb02b10dacd6236237d58ade0c7ffdffd6fea7922c395e35c3f8f3302187a28af727d8

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            362a62a3fd05d958fa6a70f57b0cce0e

            SHA1

            66657f2398d90a830fda9cd152ea287035df2090

            SHA256

            a6bcbeee56f41e279e467ef9fc1eb0187ff031394d8faabdcdbdb6eb8ad0cdc8

            SHA512

            f83e3b6b789b36c7d7808e0ea5ff428b4de21308cc9633ff3ff21f31dabb02b10dacd6236237d58ade0c7ffdffd6fea7922c395e35c3f8f3302187a28af727d8

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            38a7bd524189fd2f5cee9e4fa0f0f99a

            SHA1

            b9e87ac07ddbe20c1eeb3b69d7e3fb0f47e86cdd

            SHA256

            c2175733dc9f056a4adda4b70508f18158a999bba100f5389a184bc2593b3c47

            SHA512

            94d353813f5212072b1ba0f68a73de4be05b2c285b1c2c183778e0be61ef2b27339518633597dbda909f133da33abadc7fb1fd5f67810b560a51f5ba6b7a0d38

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            9ccf38931a50e7f70599f1a02f33223c

            SHA1

            d2d5433ef2a97b6f1785a8df32595e6fa93d26c0

            SHA256

            52048be2b84c02d9931a9456a9fe22eee6f1a3a2c4239a90d3d9f4559a743f03

            SHA512

            17cf2f681d325d59f6e6691910efed70876a385ff4191f8aa93d5d0846a5ebf9dc2bf50eeab4f9055440cf591021ee8d12fc027b8180f734eb9af63af644ef90

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            c7d06371a85a30e7e6d75f5c13932d20

            SHA1

            373421f0af274908580c6cc90b56994ecf6107f9

            SHA256

            047e42b93f58a119cd1d9f1ff9e64e6433339d6b00e05e82db95f5aa5049988b

            SHA512

            2ff03694b5cf62a42f41c131002a82bfd20b4efc66e8156bc75788d417f3f7d7e71f67ac2ecaf2bfcdd5cf88ba1de8af244b3aaa3cf02b19cc07b049304f53d0

          • memory/272-75-0x0000000000000000-mapping.dmp
          • memory/548-80-0x0000000000000000-mapping.dmp
          • memory/560-60-0x0000000000000000-mapping.dmp
          • memory/688-61-0x0000000000000000-mapping.dmp
          • memory/788-63-0x0000000000000000-mapping.dmp
          • memory/1128-57-0x0000000000000000-mapping.dmp
          • memory/1240-58-0x0000000000000000-mapping.dmp
          • memory/1432-85-0x0000000000000000-mapping.dmp
          • memory/1580-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp
            Filesize

            8KB

          • memory/1664-69-0x0000000000000000-mapping.dmp
          • memory/1744-79-0x0000000000000000-mapping.dmp
          • memory/1888-86-0x0000000000000000-mapping.dmp