Analysis

  • max time kernel
    62s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:59

General

  • Target

    20cce183e4af71957a71b282f1a09e603e0a3e5969a301fd98799247783feed7.exe

  • Size

    447KB

  • MD5

    da48981c7ee7d552d8ea9970bfb1df8e

  • SHA1

    147c25e983ecb847b71de2e270b113f032bd942f

  • SHA256

    20cce183e4af71957a71b282f1a09e603e0a3e5969a301fd98799247783feed7

  • SHA512

    d3b1bff7b69eda04598c418b574b1cf6959f2dea8bb13ae243b544776fe84d1319d4bd989145b5d968809ffa1c764d0d354dfadb1eee989b53d57f5ed9c2d350

  • SSDEEP

    12288:jtowe8wJphEA9Jm6HJtAEV09FuwCl76DPC6IqwpKu:j5e8apV7PHJ+EVg0wC56rWKu

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\20cce183e4af71957a71b282f1a09e603e0a3e5969a301fd98799247783feed7.exe
    "C:\Users\Admin\AppData\Local\Temp\20cce183e4af71957a71b282f1a09e603e0a3e5969a301fd98799247783feed7.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:1304
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:564
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1480
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1796
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1108
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1740
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:864
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:436
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:576
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1684
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1256

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            000bf83e21be6a4b63727d6c5a2f209e

            SHA1

            5463b7d1f65fa02b3404bc221dde37cbed98613f

            SHA256

            8975a99b18994018b6df89a6fce72da6d40574c64b152c89b555d56bdb2e663c

            SHA512

            300bdd1334942ae87227e9f12af01d8a9cf2b10af49205131b52efc20c76aa869c7fe5450734f3a15e5d17bd6278c3837400396d8bdb07d672abae20e2669d5a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2d6e6d2f23a5b4409f040fc528a60f5b

            SHA1

            9686431f8afc8ccb3f3ac4959f3adf349025e4a2

            SHA256

            51b6a60618f82ad0fd0ead8e7431763869b55f92209e82b8bde55e67d70c28ad

            SHA512

            9b06d62c895aa32d2f1e8c89835efff7fe7cdc7db85e0df6eb3dfd0c7d6c6843de1c95b04fd10553363d5902eb1b34041e24d453199e1e0acff1c1e9d13e267c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            918a25cf4083e11683622684a450d310

            SHA1

            3763e1e18cda9c17e0c105cacf30ce17be39e101

            SHA256

            de68bbacd77679de5e60f96bd28f0b1fcc1979eaa56404e87b17c85b0714437e

            SHA512

            3c90905e0a7132b4f16925f9da5c0774e8ba33877b8494d7918a12e2c19e59a2812a368b064a24389ec8be8f689979e9f3f17c5777b5cfa573f71491bc587654

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3d64449295caa137a91e27a2a3ad06fc

            SHA1

            5393430350ce11c2dcc5c414b8820bf831a06b79

            SHA256

            802f11d8ed8b21a457a35bc6a8bc08f3e3bc32d898477363057f865ca8b75347

            SHA512

            03ff17be98d16fe342328af8ba53345750cdd8998cd4859a23cbee5c83feb23306edd54c70797843ea59f4b90a1ef7b0a29515162ce229477f2b44dc95bcf109

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3d64449295caa137a91e27a2a3ad06fc

            SHA1

            5393430350ce11c2dcc5c414b8820bf831a06b79

            SHA256

            802f11d8ed8b21a457a35bc6a8bc08f3e3bc32d898477363057f865ca8b75347

            SHA512

            03ff17be98d16fe342328af8ba53345750cdd8998cd4859a23cbee5c83feb23306edd54c70797843ea59f4b90a1ef7b0a29515162ce229477f2b44dc95bcf109

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7b2b459b682e236d1c0ad8d87626f471

            SHA1

            0db4bc119d58d8253c39b0a11352b7c4bfdfea8c

            SHA256

            e9f99985fd2db28cf8ba2669021ad6f727d7a65c9661acbafc7e3f63005ab2e5

            SHA512

            51de5b8d6002f87d1bb10cdd3124204cbe308218e51ff3ffe797f305bf9ee094065b3538ec2deaa5c9d2d69afd6067dc26888ba8ab9fd916f8ad8009fa45acb4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7b2b459b682e236d1c0ad8d87626f471

            SHA1

            0db4bc119d58d8253c39b0a11352b7c4bfdfea8c

            SHA256

            e9f99985fd2db28cf8ba2669021ad6f727d7a65c9661acbafc7e3f63005ab2e5

            SHA512

            51de5b8d6002f87d1bb10cdd3124204cbe308218e51ff3ffe797f305bf9ee094065b3538ec2deaa5c9d2d69afd6067dc26888ba8ab9fd916f8ad8009fa45acb4

          • \Users\Admin\AppData\Local\Temp\nsd3CB5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd3CB5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3CB5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3CB5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3CB5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            000bf83e21be6a4b63727d6c5a2f209e

            SHA1

            5463b7d1f65fa02b3404bc221dde37cbed98613f

            SHA256

            8975a99b18994018b6df89a6fce72da6d40574c64b152c89b555d56bdb2e663c

            SHA512

            300bdd1334942ae87227e9f12af01d8a9cf2b10af49205131b52efc20c76aa869c7fe5450734f3a15e5d17bd6278c3837400396d8bdb07d672abae20e2669d5a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            000bf83e21be6a4b63727d6c5a2f209e

            SHA1

            5463b7d1f65fa02b3404bc221dde37cbed98613f

            SHA256

            8975a99b18994018b6df89a6fce72da6d40574c64b152c89b555d56bdb2e663c

            SHA512

            300bdd1334942ae87227e9f12af01d8a9cf2b10af49205131b52efc20c76aa869c7fe5450734f3a15e5d17bd6278c3837400396d8bdb07d672abae20e2669d5a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            000bf83e21be6a4b63727d6c5a2f209e

            SHA1

            5463b7d1f65fa02b3404bc221dde37cbed98613f

            SHA256

            8975a99b18994018b6df89a6fce72da6d40574c64b152c89b555d56bdb2e663c

            SHA512

            300bdd1334942ae87227e9f12af01d8a9cf2b10af49205131b52efc20c76aa869c7fe5450734f3a15e5d17bd6278c3837400396d8bdb07d672abae20e2669d5a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2d6e6d2f23a5b4409f040fc528a60f5b

            SHA1

            9686431f8afc8ccb3f3ac4959f3adf349025e4a2

            SHA256

            51b6a60618f82ad0fd0ead8e7431763869b55f92209e82b8bde55e67d70c28ad

            SHA512

            9b06d62c895aa32d2f1e8c89835efff7fe7cdc7db85e0df6eb3dfd0c7d6c6843de1c95b04fd10553363d5902eb1b34041e24d453199e1e0acff1c1e9d13e267c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2d6e6d2f23a5b4409f040fc528a60f5b

            SHA1

            9686431f8afc8ccb3f3ac4959f3adf349025e4a2

            SHA256

            51b6a60618f82ad0fd0ead8e7431763869b55f92209e82b8bde55e67d70c28ad

            SHA512

            9b06d62c895aa32d2f1e8c89835efff7fe7cdc7db85e0df6eb3dfd0c7d6c6843de1c95b04fd10553363d5902eb1b34041e24d453199e1e0acff1c1e9d13e267c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            918a25cf4083e11683622684a450d310

            SHA1

            3763e1e18cda9c17e0c105cacf30ce17be39e101

            SHA256

            de68bbacd77679de5e60f96bd28f0b1fcc1979eaa56404e87b17c85b0714437e

            SHA512

            3c90905e0a7132b4f16925f9da5c0774e8ba33877b8494d7918a12e2c19e59a2812a368b064a24389ec8be8f689979e9f3f17c5777b5cfa573f71491bc587654

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3d64449295caa137a91e27a2a3ad06fc

            SHA1

            5393430350ce11c2dcc5c414b8820bf831a06b79

            SHA256

            802f11d8ed8b21a457a35bc6a8bc08f3e3bc32d898477363057f865ca8b75347

            SHA512

            03ff17be98d16fe342328af8ba53345750cdd8998cd4859a23cbee5c83feb23306edd54c70797843ea59f4b90a1ef7b0a29515162ce229477f2b44dc95bcf109

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7b2b459b682e236d1c0ad8d87626f471

            SHA1

            0db4bc119d58d8253c39b0a11352b7c4bfdfea8c

            SHA256

            e9f99985fd2db28cf8ba2669021ad6f727d7a65c9661acbafc7e3f63005ab2e5

            SHA512

            51de5b8d6002f87d1bb10cdd3124204cbe308218e51ff3ffe797f305bf9ee094065b3538ec2deaa5c9d2d69afd6067dc26888ba8ab9fd916f8ad8009fa45acb4

          • memory/268-58-0x0000000000000000-mapping.dmp

          • memory/436-85-0x0000000000000000-mapping.dmp

          • memory/564-61-0x0000000000000000-mapping.dmp

          • memory/576-86-0x0000000000000000-mapping.dmp

          • memory/864-80-0x0000000000000000-mapping.dmp

          • memory/1052-60-0x0000000000000000-mapping.dmp

          • memory/1108-75-0x0000000000000000-mapping.dmp

          • memory/1304-54-0x0000000076221000-0x0000000076223000-memory.dmp

            Filesize

            8KB

          • memory/1480-63-0x0000000000000000-mapping.dmp

          • memory/1740-79-0x0000000000000000-mapping.dmp

          • memory/1796-69-0x0000000000000000-mapping.dmp

          • memory/2036-57-0x0000000000000000-mapping.dmp