Analysis

  • max time kernel
    90s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 03:01

General

  • Target

    8dbb01785dfad38f93126cd7d00b129032c16b99381b15c629875ed0670cadbe.exe

  • Size

    832KB

  • MD5

    49fcd6862dd174342c1e099a00e4a5d9

  • SHA1

    8a6162b1a46f02443c7fca754fe670d05dcd96cc

  • SHA256

    8dbb01785dfad38f93126cd7d00b129032c16b99381b15c629875ed0670cadbe

  • SHA512

    3136313b1e185d43613dff889540f25d28ce1e416516f772b57ce59014e08dacd1fc6c65fdd347398f63937be1c8fa65f47f95b16548a570f28346b0c348c9eb

  • SSDEEP

    12288:5NpbfGRDCwDeR/0T94NeC1m0N5YOySNtyztC48bl8agTw5LkFDFbmEE:5rfGR2wDeRMTWNeCUg5YOyPzyln5oDF

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\8dbb01785dfad38f93126cd7d00b129032c16b99381b15c629875ed0670cadbe.exe
    "C:\Users\Admin\AppData\Local\Temp\8dbb01785dfad38f93126cd7d00b129032c16b99381b15c629875ed0670cadbe.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:4848
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4820
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4260
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4548
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4588
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2700
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1660
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2720
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:112
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4240
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4192
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4244
          • 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:4228
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1736

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDE60.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1164d8f1c1233fd7fb5277b6312893d8

            SHA1

            50afdc0902e2e85bf4a0c816606730a78a5ce616

            SHA256

            0212d1da2f87239d5dc06c8550834b9aa5e5c95a9e7ba04ed427aaec1854fd41

            SHA512

            6c804bbe7675fb90a3809a2737ad27971a7b6b1b8ca1c78ba1de93405a7150ada766a30aae50987f496c39368db3b05e6a5c7733e6d1308cb0b6ca2414973814

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1164d8f1c1233fd7fb5277b6312893d8

            SHA1

            50afdc0902e2e85bf4a0c816606730a78a5ce616

            SHA256

            0212d1da2f87239d5dc06c8550834b9aa5e5c95a9e7ba04ed427aaec1854fd41

            SHA512

            6c804bbe7675fb90a3809a2737ad27971a7b6b1b8ca1c78ba1de93405a7150ada766a30aae50987f496c39368db3b05e6a5c7733e6d1308cb0b6ca2414973814

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1164d8f1c1233fd7fb5277b6312893d8

            SHA1

            50afdc0902e2e85bf4a0c816606730a78a5ce616

            SHA256

            0212d1da2f87239d5dc06c8550834b9aa5e5c95a9e7ba04ed427aaec1854fd41

            SHA512

            6c804bbe7675fb90a3809a2737ad27971a7b6b1b8ca1c78ba1de93405a7150ada766a30aae50987f496c39368db3b05e6a5c7733e6d1308cb0b6ca2414973814

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1164d8f1c1233fd7fb5277b6312893d8

            SHA1

            50afdc0902e2e85bf4a0c816606730a78a5ce616

            SHA256

            0212d1da2f87239d5dc06c8550834b9aa5e5c95a9e7ba04ed427aaec1854fd41

            SHA512

            6c804bbe7675fb90a3809a2737ad27971a7b6b1b8ca1c78ba1de93405a7150ada766a30aae50987f496c39368db3b05e6a5c7733e6d1308cb0b6ca2414973814

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            e4df91725ca571ee4585fd9df08e4653

            SHA1

            2404d97d9c6b08bd7948ece50032ed2674796a12

            SHA256

            edf65e5b6298a6892a68f77fe98bae4ccf9d4b54ebe3897a76a1ef0892b45a13

            SHA512

            9300319d5f82f429216a1360250a99babc5c5b267bfa477dc1b4b80e5fb622b89d82785ed4ca6c33fd4c6d9333c11c62b4fd5b494236ccf8c742f769a682426b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            e4df91725ca571ee4585fd9df08e4653

            SHA1

            2404d97d9c6b08bd7948ece50032ed2674796a12

            SHA256

            edf65e5b6298a6892a68f77fe98bae4ccf9d4b54ebe3897a76a1ef0892b45a13

            SHA512

            9300319d5f82f429216a1360250a99babc5c5b267bfa477dc1b4b80e5fb622b89d82785ed4ca6c33fd4c6d9333c11c62b4fd5b494236ccf8c742f769a682426b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            e4df91725ca571ee4585fd9df08e4653

            SHA1

            2404d97d9c6b08bd7948ece50032ed2674796a12

            SHA256

            edf65e5b6298a6892a68f77fe98bae4ccf9d4b54ebe3897a76a1ef0892b45a13

            SHA512

            9300319d5f82f429216a1360250a99babc5c5b267bfa477dc1b4b80e5fb622b89d82785ed4ca6c33fd4c6d9333c11c62b4fd5b494236ccf8c742f769a682426b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            add82b4bc6894f8e57c8fb36219296db

            SHA1

            e16aa87f5efd593fd9c95db6cd8eb0c89b322992

            SHA256

            1142a69033a2978793380d43d39b31d9fd62bbbce484b4a825bd994d301ecac0

            SHA512

            30380554f1949a9a003f6faebafd32ae905641cd096d075de220412ac81b23047b77cfacf0e7cadaeb7c065c2ba4320838e7aad3fe502b63b3e54cd9bbcd66d6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            add82b4bc6894f8e57c8fb36219296db

            SHA1

            e16aa87f5efd593fd9c95db6cd8eb0c89b322992

            SHA256

            1142a69033a2978793380d43d39b31d9fd62bbbce484b4a825bd994d301ecac0

            SHA512

            30380554f1949a9a003f6faebafd32ae905641cd096d075de220412ac81b23047b77cfacf0e7cadaeb7c065c2ba4320838e7aad3fe502b63b3e54cd9bbcd66d6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            6df225d2350e3613928a659d8980e1c7

            SHA1

            6b7e8c95af2c303b200b2c7e8b6568e48622e157

            SHA256

            35ca69e2bb2b5f4d55fe18216a18b570194326b06fd7476049f420d1e341ed12

            SHA512

            5a7939b45fbd721b907add40cad2031d9d2e1eac71112961ceee3d2d93c00cef5a7b60a0bb8928630686af99baf9284d0084a4cf26f8d822fcd948e2a3187163

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            6df225d2350e3613928a659d8980e1c7

            SHA1

            6b7e8c95af2c303b200b2c7e8b6568e48622e157

            SHA256

            35ca69e2bb2b5f4d55fe18216a18b570194326b06fd7476049f420d1e341ed12

            SHA512

            5a7939b45fbd721b907add40cad2031d9d2e1eac71112961ceee3d2d93c00cef5a7b60a0bb8928630686af99baf9284d0084a4cf26f8d822fcd948e2a3187163

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            331KB

            MD5

            6df225d2350e3613928a659d8980e1c7

            SHA1

            6b7e8c95af2c303b200b2c7e8b6568e48622e157

            SHA256

            35ca69e2bb2b5f4d55fe18216a18b570194326b06fd7476049f420d1e341ed12

            SHA512

            5a7939b45fbd721b907add40cad2031d9d2e1eac71112961ceee3d2d93c00cef5a7b60a0bb8928630686af99baf9284d0084a4cf26f8d822fcd948e2a3187163

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            4872b08482a659f89059ad340224aec5

            SHA1

            79dbac8f5fa310f28098bc9cff0a26a3ab065a3a

            SHA256

            1a490ebbbe3988acc1da7d718b580f13b27a5aea3955e14b43acbbbdc2f9bf0b

            SHA512

            37ee98943f163c68cd9c0ba3d640d345fb78e8371a01326c90564d9bd420e7dec92328ce019512ffffd62a244a6042fd6395d2b393e33be81e5aa77fdfff1de3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            4872b08482a659f89059ad340224aec5

            SHA1

            79dbac8f5fa310f28098bc9cff0a26a3ab065a3a

            SHA256

            1a490ebbbe3988acc1da7d718b580f13b27a5aea3955e14b43acbbbdc2f9bf0b

            SHA512

            37ee98943f163c68cd9c0ba3d640d345fb78e8371a01326c90564d9bd420e7dec92328ce019512ffffd62a244a6042fd6395d2b393e33be81e5aa77fdfff1de3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            4872b08482a659f89059ad340224aec5

            SHA1

            79dbac8f5fa310f28098bc9cff0a26a3ab065a3a

            SHA256

            1a490ebbbe3988acc1da7d718b580f13b27a5aea3955e14b43acbbbdc2f9bf0b

            SHA512

            37ee98943f163c68cd9c0ba3d640d345fb78e8371a01326c90564d9bd420e7dec92328ce019512ffffd62a244a6042fd6395d2b393e33be81e5aa77fdfff1de3

          • memory/112-158-0x0000000000000000-mapping.dmp

          • memory/1660-147-0x0000000000000000-mapping.dmp

          • memory/2700-142-0x0000000000000000-mapping.dmp

          • memory/2720-153-0x0000000000000000-mapping.dmp

          • memory/4192-165-0x0000000000000000-mapping.dmp

          • memory/4240-159-0x0000000000000000-mapping.dmp

          • memory/4244-166-0x0000000000000000-mapping.dmp

          • memory/4260-137-0x0000000000000000-mapping.dmp

          • memory/4548-140-0x0000000000000000-mapping.dmp

          • memory/4588-141-0x0000000000000000-mapping.dmp

          • memory/4820-136-0x0000000000000000-mapping.dmp

          • memory/4848-132-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/4848-168-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB