Analysis

  • max time kernel
    37s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    0881e77ee965a0a17cca6b1c11915606988802b4185868f37e9f303d5e98ea9a.exe

  • Size

    602KB

  • MD5

    7ebc6e4a8bf4ccb7bcf0aa1229ac7a7c

  • SHA1

    cc67192758a66e6ccf4695e82b88b0e64ccf6370

  • SHA256

    0881e77ee965a0a17cca6b1c11915606988802b4185868f37e9f303d5e98ea9a

  • SHA512

    c390ba177da1dd88470da0d7baf1fc48b2ec8ec888f7c8fe6fc29a7123773221549e65e34c69399c7f2f01388efe6cabc70919c82fbbd1aafce15a187f4da61c

  • SSDEEP

    12288:zIny5DYTWY2/MXPBN7BiVwHA1wONyvRPAY4lLv28O:bUTWY2MXPBxBtg1bYdAY4JS

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\0881e77ee965a0a17cca6b1c11915606988802b4185868f37e9f303d5e98ea9a.exe
    "C:\Users\Admin\AppData\Local\Temp\0881e77ee965a0a17cca6b1c11915606988802b4185868f37e9f303d5e98ea9a.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:1132
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:472
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1492
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:332
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1416
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:816
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1988
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1692
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1664
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1004
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:484
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1824
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1296

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            83002eba32762b269c3f047f672c5976

            SHA1

            9bfbd1511386ddd8dadc460fadb74265cc45601c

            SHA256

            c6cba04484f29f3dfba36bf8ed4e790aba2472b1a3058458c6f77041565d9483

            SHA512

            81fb3fd2542e867a46f75aedd93bb94b78726085ff6b414510004498c1852ed518c6a4ca1b5f1a6cbe39d1b2687762c5727047749a7f52c6615bb749b2b0760b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0853e40c3b88a73c2f99b539b75920a

            SHA1

            60b5a1afe3785a35029db191c266c7eae38b2219

            SHA256

            af0a165dcafcbdc4f61cf33cce39cd6f63f3c998ac2d8e8314e27ed282dc38cf

            SHA512

            0212151a02a1ae3a1a3796d48207df67b5b77d396031d90776233cf527618d797268c938452f4fa8dd59b508078e77781fcc28203d41b5714818116ca931a6de

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2a28c1181d0603fd19cb5d5f0eb7ba8e

            SHA1

            51a6a916ac4d6ad9191161320d13d6f6e01cd186

            SHA256

            f837ac61e0e377466ac0f1194b27984c38ccd1e2d0efd3a2f71fbbecfa26bb69

            SHA512

            abde449088c9d32480ee699e2a5157310b2d2a1b56a53576b7db6e39044524cedca5edbcb31cd0ac3e228be844e30a31bfa254725fffdbd066722bde96d6d691

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1dd57c94f7ded558f33d33d145f1dbc

            SHA1

            d980ca41aab912e2fa9b683ce0b0f1de7188781a

            SHA256

            28de02ee4ca9334dcc903698d81fcdcbb0ce4bed437f9051adb509e130f8debc

            SHA512

            0e889f22f39dd0aebf8edbf1602aa89f42c557b125f9e29daa731858be601f6d4acbb3f237c699fa3276bd2ceca05d91868118090a2489fc75c12f4345024221

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1dd57c94f7ded558f33d33d145f1dbc

            SHA1

            d980ca41aab912e2fa9b683ce0b0f1de7188781a

            SHA256

            28de02ee4ca9334dcc903698d81fcdcbb0ce4bed437f9051adb509e130f8debc

            SHA512

            0e889f22f39dd0aebf8edbf1602aa89f42c557b125f9e29daa731858be601f6d4acbb3f237c699fa3276bd2ceca05d91868118090a2489fc75c12f4345024221

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a214fbce442dc9e9ad2195ebdbada809

            SHA1

            6ec7309079bd36203a52bf1b65d5beb641a57901

            SHA256

            16bc577dfa76618847ff35682edbf2fd07cc36021ce407d538ec5d8aa90d8dda

            SHA512

            ffb90b8cb97e222a32f356ec1856e3d85028b2a0a5669e1611e60a84550154a5e73d697048645d29695bc9ad89f031f5cfccd866fc68595dfdc6922887e4a2c8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a214fbce442dc9e9ad2195ebdbada809

            SHA1

            6ec7309079bd36203a52bf1b65d5beb641a57901

            SHA256

            16bc577dfa76618847ff35682edbf2fd07cc36021ce407d538ec5d8aa90d8dda

            SHA512

            ffb90b8cb97e222a32f356ec1856e3d85028b2a0a5669e1611e60a84550154a5e73d697048645d29695bc9ad89f031f5cfccd866fc68595dfdc6922887e4a2c8

          • \Users\Admin\AppData\Local\Temp\nsy3FA2.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy3FA2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3FA2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3FA2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3FA2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            83002eba32762b269c3f047f672c5976

            SHA1

            9bfbd1511386ddd8dadc460fadb74265cc45601c

            SHA256

            c6cba04484f29f3dfba36bf8ed4e790aba2472b1a3058458c6f77041565d9483

            SHA512

            81fb3fd2542e867a46f75aedd93bb94b78726085ff6b414510004498c1852ed518c6a4ca1b5f1a6cbe39d1b2687762c5727047749a7f52c6615bb749b2b0760b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            83002eba32762b269c3f047f672c5976

            SHA1

            9bfbd1511386ddd8dadc460fadb74265cc45601c

            SHA256

            c6cba04484f29f3dfba36bf8ed4e790aba2472b1a3058458c6f77041565d9483

            SHA512

            81fb3fd2542e867a46f75aedd93bb94b78726085ff6b414510004498c1852ed518c6a4ca1b5f1a6cbe39d1b2687762c5727047749a7f52c6615bb749b2b0760b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            83002eba32762b269c3f047f672c5976

            SHA1

            9bfbd1511386ddd8dadc460fadb74265cc45601c

            SHA256

            c6cba04484f29f3dfba36bf8ed4e790aba2472b1a3058458c6f77041565d9483

            SHA512

            81fb3fd2542e867a46f75aedd93bb94b78726085ff6b414510004498c1852ed518c6a4ca1b5f1a6cbe39d1b2687762c5727047749a7f52c6615bb749b2b0760b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0853e40c3b88a73c2f99b539b75920a

            SHA1

            60b5a1afe3785a35029db191c266c7eae38b2219

            SHA256

            af0a165dcafcbdc4f61cf33cce39cd6f63f3c998ac2d8e8314e27ed282dc38cf

            SHA512

            0212151a02a1ae3a1a3796d48207df67b5b77d396031d90776233cf527618d797268c938452f4fa8dd59b508078e77781fcc28203d41b5714818116ca931a6de

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f0853e40c3b88a73c2f99b539b75920a

            SHA1

            60b5a1afe3785a35029db191c266c7eae38b2219

            SHA256

            af0a165dcafcbdc4f61cf33cce39cd6f63f3c998ac2d8e8314e27ed282dc38cf

            SHA512

            0212151a02a1ae3a1a3796d48207df67b5b77d396031d90776233cf527618d797268c938452f4fa8dd59b508078e77781fcc28203d41b5714818116ca931a6de

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2a28c1181d0603fd19cb5d5f0eb7ba8e

            SHA1

            51a6a916ac4d6ad9191161320d13d6f6e01cd186

            SHA256

            f837ac61e0e377466ac0f1194b27984c38ccd1e2d0efd3a2f71fbbecfa26bb69

            SHA512

            abde449088c9d32480ee699e2a5157310b2d2a1b56a53576b7db6e39044524cedca5edbcb31cd0ac3e228be844e30a31bfa254725fffdbd066722bde96d6d691

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1dd57c94f7ded558f33d33d145f1dbc

            SHA1

            d980ca41aab912e2fa9b683ce0b0f1de7188781a

            SHA256

            28de02ee4ca9334dcc903698d81fcdcbb0ce4bed437f9051adb509e130f8debc

            SHA512

            0e889f22f39dd0aebf8edbf1602aa89f42c557b125f9e29daa731858be601f6d4acbb3f237c699fa3276bd2ceca05d91868118090a2489fc75c12f4345024221

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a214fbce442dc9e9ad2195ebdbada809

            SHA1

            6ec7309079bd36203a52bf1b65d5beb641a57901

            SHA256

            16bc577dfa76618847ff35682edbf2fd07cc36021ce407d538ec5d8aa90d8dda

            SHA512

            ffb90b8cb97e222a32f356ec1856e3d85028b2a0a5669e1611e60a84550154a5e73d697048645d29695bc9ad89f031f5cfccd866fc68595dfdc6922887e4a2c8

          • memory/332-62-0x0000000000000000-mapping.dmp

          • memory/472-59-0x0000000000000000-mapping.dmp

          • memory/484-87-0x0000000000000000-mapping.dmp

          • memory/816-70-0x0000000000000000-mapping.dmp

          • memory/1004-86-0x0000000000000000-mapping.dmp

          • memory/1132-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1132-54-0x0000000075561000-0x0000000075563000-memory.dmp

            Filesize

            8KB

          • memory/1132-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1324-58-0x0000000000000000-mapping.dmp

          • memory/1416-64-0x0000000000000000-mapping.dmp

          • memory/1492-61-0x0000000000000000-mapping.dmp

          • memory/1664-81-0x0000000000000000-mapping.dmp

          • memory/1692-80-0x0000000000000000-mapping.dmp

          • memory/1988-76-0x0000000000000000-mapping.dmp