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 10:54

General

  • Target

    9c530244e43bc4eaffb0a7b39906defe2e4f6e138a9531812ffcecd927ea81d3.exe

  • Size

    445KB

  • MD5

    c11c481c346837c9c9d83e184b311ccf

  • SHA1

    7981225d15891c8244325b8d6aed95d8d9ae6b47

  • SHA256

    9c530244e43bc4eaffb0a7b39906defe2e4f6e138a9531812ffcecd927ea81d3

  • SHA512

    f76de66faaadd946cdbfd8977cd4c3d7863efa967d7638b50928c56c1abe1999de75b0dfe895cb9f7644db339f0d613995a42c77681dfacd15e180a79f161b8d

  • SSDEEP

    12288:8nhBh96+1nDO/sLYb3bGQu5QSGJ/jcCLK/:8nhBZ1KYYbLGX6SQ4Cu

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\9c530244e43bc4eaffb0a7b39906defe2e4f6e138a9531812ffcecd927ea81d3.exe
    "C:\Users\Admin\AppData\Local\Temp\9c530244e43bc4eaffb0a7b39906defe2e4f6e138a9531812ffcecd927ea81d3.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:1996
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1680
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1552
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:908
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1264
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:904
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:968
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1216
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1412
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1712
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:564
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:896
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:304

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46955d9f33738ac57c1ac7f5e784647e

            SHA1

            3717bb5b7f37ed1089d69d20e3fed1ca5eaad447

            SHA256

            0e0a73e144f4a3dc0d5cf56f08076e4fd4b61dcf42e5e8354b22a8bb4e4f39a5

            SHA512

            61aa4dbb3cf0cb80e960bca0aedde680be87807523fc515a542350012b26f3c0ab00a7b8d6d07f2c72f37020d02553965caa3206397c19d1e92d1c2d82b2c20a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            709b0f98b730fe8b240cd6cdbcc9de91

            SHA1

            4966a77a9541c6dda74071b1f5037eda71d9eb09

            SHA256

            7672adb7655d5fd9ccfe1c09f704a0b3ac2f988411a6660edffb62be1ea43acd

            SHA512

            382dc9c8bc4d8c5274ce360cc51783e8c51dbb854ac536eba246f96e5078143636b6f119cc3bd292a960d4ca2c7c44a71abe679609460a6577bdaf748c51245c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6c9782cc2884db0d0b51c257dcae6f5a

            SHA1

            68cd07036c3aa0655cc9a178e8ab1a5aea8fc536

            SHA256

            fbb409613eb6beb0b94cc0ab331f6288b09f30f996a5e914ea87cc95438b9fe6

            SHA512

            b8b15967261c8584b0010ff288a9832de2d17d9ee33a42e9860d9d98b2286af5be0093a6331fb6708c2a75acdefde8de00e7c5d33cdc4a5d3f5754e538ccfb85

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c651dcd94e0ac87c05cb8e128d98ed31

            SHA1

            a28f54edcb5e90f66b949dd13e46022115540cae

            SHA256

            314f2bf4d2418f06c89442c2237559e3b3d6939c7187aff74d130c483c3cfe9f

            SHA512

            98e861ba7ae3af5cfbbed2b2c6faad6d700a73e7c74330b5dd5bec1e5f6d437d0f436556cc8942bd04d7ce9f6481887eca1d679b3dfc7084bb351d473f037f8c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c651dcd94e0ac87c05cb8e128d98ed31

            SHA1

            a28f54edcb5e90f66b949dd13e46022115540cae

            SHA256

            314f2bf4d2418f06c89442c2237559e3b3d6939c7187aff74d130c483c3cfe9f

            SHA512

            98e861ba7ae3af5cfbbed2b2c6faad6d700a73e7c74330b5dd5bec1e5f6d437d0f436556cc8942bd04d7ce9f6481887eca1d679b3dfc7084bb351d473f037f8c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4055de6ab524dd63a98258abd71f596a

            SHA1

            d27fc4b757dc8b0103d0c3ebcd05c3c88b19eeb0

            SHA256

            1173deefb2f08a0f38bf60cf286c75512b27009d3721b039db76921a57e04d7e

            SHA512

            935372c4fcd3d7f6ea49c00f8d6588bf5608f3f62cbd1dcec6f9dd52d453e34ed7438a2e0a5a97010578f36bb1a1bafa2b1cfce3bd79d7dbfc0def1b460cf381

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4055de6ab524dd63a98258abd71f596a

            SHA1

            d27fc4b757dc8b0103d0c3ebcd05c3c88b19eeb0

            SHA256

            1173deefb2f08a0f38bf60cf286c75512b27009d3721b039db76921a57e04d7e

            SHA512

            935372c4fcd3d7f6ea49c00f8d6588bf5608f3f62cbd1dcec6f9dd52d453e34ed7438a2e0a5a97010578f36bb1a1bafa2b1cfce3bd79d7dbfc0def1b460cf381

          • \Users\Admin\AppData\Local\Temp\nsd47FB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd47FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd47FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd47FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd47FB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46955d9f33738ac57c1ac7f5e784647e

            SHA1

            3717bb5b7f37ed1089d69d20e3fed1ca5eaad447

            SHA256

            0e0a73e144f4a3dc0d5cf56f08076e4fd4b61dcf42e5e8354b22a8bb4e4f39a5

            SHA512

            61aa4dbb3cf0cb80e960bca0aedde680be87807523fc515a542350012b26f3c0ab00a7b8d6d07f2c72f37020d02553965caa3206397c19d1e92d1c2d82b2c20a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46955d9f33738ac57c1ac7f5e784647e

            SHA1

            3717bb5b7f37ed1089d69d20e3fed1ca5eaad447

            SHA256

            0e0a73e144f4a3dc0d5cf56f08076e4fd4b61dcf42e5e8354b22a8bb4e4f39a5

            SHA512

            61aa4dbb3cf0cb80e960bca0aedde680be87807523fc515a542350012b26f3c0ab00a7b8d6d07f2c72f37020d02553965caa3206397c19d1e92d1c2d82b2c20a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46955d9f33738ac57c1ac7f5e784647e

            SHA1

            3717bb5b7f37ed1089d69d20e3fed1ca5eaad447

            SHA256

            0e0a73e144f4a3dc0d5cf56f08076e4fd4b61dcf42e5e8354b22a8bb4e4f39a5

            SHA512

            61aa4dbb3cf0cb80e960bca0aedde680be87807523fc515a542350012b26f3c0ab00a7b8d6d07f2c72f37020d02553965caa3206397c19d1e92d1c2d82b2c20a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            709b0f98b730fe8b240cd6cdbcc9de91

            SHA1

            4966a77a9541c6dda74071b1f5037eda71d9eb09

            SHA256

            7672adb7655d5fd9ccfe1c09f704a0b3ac2f988411a6660edffb62be1ea43acd

            SHA512

            382dc9c8bc4d8c5274ce360cc51783e8c51dbb854ac536eba246f96e5078143636b6f119cc3bd292a960d4ca2c7c44a71abe679609460a6577bdaf748c51245c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            709b0f98b730fe8b240cd6cdbcc9de91

            SHA1

            4966a77a9541c6dda74071b1f5037eda71d9eb09

            SHA256

            7672adb7655d5fd9ccfe1c09f704a0b3ac2f988411a6660edffb62be1ea43acd

            SHA512

            382dc9c8bc4d8c5274ce360cc51783e8c51dbb854ac536eba246f96e5078143636b6f119cc3bd292a960d4ca2c7c44a71abe679609460a6577bdaf748c51245c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6c9782cc2884db0d0b51c257dcae6f5a

            SHA1

            68cd07036c3aa0655cc9a178e8ab1a5aea8fc536

            SHA256

            fbb409613eb6beb0b94cc0ab331f6288b09f30f996a5e914ea87cc95438b9fe6

            SHA512

            b8b15967261c8584b0010ff288a9832de2d17d9ee33a42e9860d9d98b2286af5be0093a6331fb6708c2a75acdefde8de00e7c5d33cdc4a5d3f5754e538ccfb85

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c651dcd94e0ac87c05cb8e128d98ed31

            SHA1

            a28f54edcb5e90f66b949dd13e46022115540cae

            SHA256

            314f2bf4d2418f06c89442c2237559e3b3d6939c7187aff74d130c483c3cfe9f

            SHA512

            98e861ba7ae3af5cfbbed2b2c6faad6d700a73e7c74330b5dd5bec1e5f6d437d0f436556cc8942bd04d7ce9f6481887eca1d679b3dfc7084bb351d473f037f8c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4055de6ab524dd63a98258abd71f596a

            SHA1

            d27fc4b757dc8b0103d0c3ebcd05c3c88b19eeb0

            SHA256

            1173deefb2f08a0f38bf60cf286c75512b27009d3721b039db76921a57e04d7e

            SHA512

            935372c4fcd3d7f6ea49c00f8d6588bf5608f3f62cbd1dcec6f9dd52d453e34ed7438a2e0a5a97010578f36bb1a1bafa2b1cfce3bd79d7dbfc0def1b460cf381

          • memory/564-86-0x0000000000000000-mapping.dmp

          • memory/904-69-0x0000000000000000-mapping.dmp

          • memory/908-61-0x0000000000000000-mapping.dmp

          • memory/968-75-0x0000000000000000-mapping.dmp

          • memory/1216-79-0x0000000000000000-mapping.dmp

          • memory/1264-63-0x0000000000000000-mapping.dmp

          • memory/1412-80-0x0000000000000000-mapping.dmp

          • memory/1552-60-0x0000000000000000-mapping.dmp

          • memory/1564-57-0x0000000000000000-mapping.dmp

          • memory/1680-58-0x0000000000000000-mapping.dmp

          • memory/1712-85-0x0000000000000000-mapping.dmp

          • memory/1996-54-0x0000000076031000-0x0000000076033000-memory.dmp

            Filesize

            8KB