Analysis

  • max time kernel
    62s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:31

General

  • Target

    266844d698b7a413cd59e029b30958739a88a6930de74299a29551ce05ef468a.exe

  • Size

    602KB

  • MD5

    8914d19e23b4b8935bfdd82cfe4564a3

  • SHA1

    7f49587be3f797ecb93c76114ef07cc35059c0d5

  • SHA256

    266844d698b7a413cd59e029b30958739a88a6930de74299a29551ce05ef468a

  • SHA512

    cc2a1cc702ce94e67625bc77332f6ef6a315dd2b56dfb666971ee6b727543abfcde1852bb9e88beba18dbf154116c4e5b11ad2467bf3ac4ff821c41f4a3e555d

  • SSDEEP

    12288:oIny5DYTuctf81KHZ14u6mYO6wlFs7fU8UT1UWg1WZBB7uEeG6SOG4:mUTurKHjP8dYs3UTO4ZBd4DSg

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\266844d698b7a413cd59e029b30958739a88a6930de74299a29551ce05ef468a.exe
    "C:\Users\Admin\AppData\Local\Temp\266844d698b7a413cd59e029b30958739a88a6930de74299a29551ce05ef468a.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:3704
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:452
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:664
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1096
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4908
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3464
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:396
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1236
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1960
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2276
          • 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:4388
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5016

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsf88D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4fa103af3aa269d39ae918770a3554fe

            SHA1

            12a4d73d5c4a748364147347fb2ed337a2629676

            SHA256

            1a00155ae289c3d823e33e3fa6b69c24921b01e749597c04d078bef8b114bef1

            SHA512

            e1838c6cd48b562b6b5926400f3de91838c422ce759ad63756d72b9680ed0401d756fc5aabd1064d7c401add1e27550caa3e29e9c014bbbc196ec967fad9d85f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4fa103af3aa269d39ae918770a3554fe

            SHA1

            12a4d73d5c4a748364147347fb2ed337a2629676

            SHA256

            1a00155ae289c3d823e33e3fa6b69c24921b01e749597c04d078bef8b114bef1

            SHA512

            e1838c6cd48b562b6b5926400f3de91838c422ce759ad63756d72b9680ed0401d756fc5aabd1064d7c401add1e27550caa3e29e9c014bbbc196ec967fad9d85f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4fa103af3aa269d39ae918770a3554fe

            SHA1

            12a4d73d5c4a748364147347fb2ed337a2629676

            SHA256

            1a00155ae289c3d823e33e3fa6b69c24921b01e749597c04d078bef8b114bef1

            SHA512

            e1838c6cd48b562b6b5926400f3de91838c422ce759ad63756d72b9680ed0401d756fc5aabd1064d7c401add1e27550caa3e29e9c014bbbc196ec967fad9d85f

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4fa103af3aa269d39ae918770a3554fe

            SHA1

            12a4d73d5c4a748364147347fb2ed337a2629676

            SHA256

            1a00155ae289c3d823e33e3fa6b69c24921b01e749597c04d078bef8b114bef1

            SHA512

            e1838c6cd48b562b6b5926400f3de91838c422ce759ad63756d72b9680ed0401d756fc5aabd1064d7c401add1e27550caa3e29e9c014bbbc196ec967fad9d85f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            58e0aafaecf3c75c15686285a9f1da58

            SHA1

            1921ffb00f11d5b65f4c26ea11559a85a8832d72

            SHA256

            b4d52028ccc4afc828f5af70818e859529438912dd278179b96dd652e6e36f26

            SHA512

            ee0ffd47fc0e0cc3ebddd8137bcfc7173b0277bc6d8d33ce1bf70ad5e641a7b4f2c74746dbf1e4056f3e16a98a7718efc311ea5ed72bc788bf9f0657a57902ee

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            58e0aafaecf3c75c15686285a9f1da58

            SHA1

            1921ffb00f11d5b65f4c26ea11559a85a8832d72

            SHA256

            b4d52028ccc4afc828f5af70818e859529438912dd278179b96dd652e6e36f26

            SHA512

            ee0ffd47fc0e0cc3ebddd8137bcfc7173b0277bc6d8d33ce1bf70ad5e641a7b4f2c74746dbf1e4056f3e16a98a7718efc311ea5ed72bc788bf9f0657a57902ee

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            58e0aafaecf3c75c15686285a9f1da58

            SHA1

            1921ffb00f11d5b65f4c26ea11559a85a8832d72

            SHA256

            b4d52028ccc4afc828f5af70818e859529438912dd278179b96dd652e6e36f26

            SHA512

            ee0ffd47fc0e0cc3ebddd8137bcfc7173b0277bc6d8d33ce1bf70ad5e641a7b4f2c74746dbf1e4056f3e16a98a7718efc311ea5ed72bc788bf9f0657a57902ee

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            97b8b88d726ab0cc5b5b1f694964c1ca

            SHA1

            b0c70d2dcd9467263149209d4b4b8d82693f33e4

            SHA256

            dcb259b7e68acbb3bbc4fad0e58d87a3e57187b0c88d3c9a44f3420d72c33ecf

            SHA512

            7a2983cd332b093f1813571116f1542835d2807d881f3f9325a6be4549ec6d8002a91024149541a95974545ae9013401ca00ea3adc52a9451b1c2c96f0e9dd74

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            97b8b88d726ab0cc5b5b1f694964c1ca

            SHA1

            b0c70d2dcd9467263149209d4b4b8d82693f33e4

            SHA256

            dcb259b7e68acbb3bbc4fad0e58d87a3e57187b0c88d3c9a44f3420d72c33ecf

            SHA512

            7a2983cd332b093f1813571116f1542835d2807d881f3f9325a6be4549ec6d8002a91024149541a95974545ae9013401ca00ea3adc52a9451b1c2c96f0e9dd74

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            02bbe191c6a7f9eea91e6b2bb7d6465a

            SHA1

            7711c1459a2b3e92192e8112d6a5e9867204b876

            SHA256

            1df0c2f4ae8151e910e2ef962a9fd8698e811eb3f07484c3d377bc05e124700a

            SHA512

            b941ee6c7e26518bff140a0f368cca963d4ea3ae5946091101a487bbde1b8dce526e1c1f74706a85cadab2c9ead2944984011ef93e4c280bd6d10191eb61496f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            02bbe191c6a7f9eea91e6b2bb7d6465a

            SHA1

            7711c1459a2b3e92192e8112d6a5e9867204b876

            SHA256

            1df0c2f4ae8151e910e2ef962a9fd8698e811eb3f07484c3d377bc05e124700a

            SHA512

            b941ee6c7e26518bff140a0f368cca963d4ea3ae5946091101a487bbde1b8dce526e1c1f74706a85cadab2c9ead2944984011ef93e4c280bd6d10191eb61496f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            02bbe191c6a7f9eea91e6b2bb7d6465a

            SHA1

            7711c1459a2b3e92192e8112d6a5e9867204b876

            SHA256

            1df0c2f4ae8151e910e2ef962a9fd8698e811eb3f07484c3d377bc05e124700a

            SHA512

            b941ee6c7e26518bff140a0f368cca963d4ea3ae5946091101a487bbde1b8dce526e1c1f74706a85cadab2c9ead2944984011ef93e4c280bd6d10191eb61496f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1183ba3b6a3ad39a7fec1d93dae6a646

            SHA1

            07187b0a8828f5b7bdc64f79e8fe0a1e1019dd37

            SHA256

            e6e9a7e31f28161d5369603bca3df31838627de2979dfa60e7ef151f556a97f7

            SHA512

            a24e6a8001626b4c8739b3ecf00e619ba0d3cbdd25c4a0cbb302b574f7ba01763f308daf92d2a1bde51c399bfee34e2865420c77fbbbfddc5b81c2697a353989

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1183ba3b6a3ad39a7fec1d93dae6a646

            SHA1

            07187b0a8828f5b7bdc64f79e8fe0a1e1019dd37

            SHA256

            e6e9a7e31f28161d5369603bca3df31838627de2979dfa60e7ef151f556a97f7

            SHA512

            a24e6a8001626b4c8739b3ecf00e619ba0d3cbdd25c4a0cbb302b574f7ba01763f308daf92d2a1bde51c399bfee34e2865420c77fbbbfddc5b81c2697a353989

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            1183ba3b6a3ad39a7fec1d93dae6a646

            SHA1

            07187b0a8828f5b7bdc64f79e8fe0a1e1019dd37

            SHA256

            e6e9a7e31f28161d5369603bca3df31838627de2979dfa60e7ef151f556a97f7

            SHA512

            a24e6a8001626b4c8739b3ecf00e619ba0d3cbdd25c4a0cbb302b574f7ba01763f308daf92d2a1bde51c399bfee34e2865420c77fbbbfddc5b81c2697a353989

          • memory/396-153-0x0000000000000000-mapping.dmp

          • memory/452-136-0x0000000000000000-mapping.dmp

          • memory/664-137-0x0000000000000000-mapping.dmp

          • memory/1096-140-0x0000000000000000-mapping.dmp

          • memory/1236-158-0x0000000000000000-mapping.dmp

          • memory/1820-165-0x0000000000000000-mapping.dmp

          • memory/1960-159-0x0000000000000000-mapping.dmp

          • memory/2276-166-0x0000000000000000-mapping.dmp

          • memory/3464-147-0x0000000000000000-mapping.dmp

          • memory/3704-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3704-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4908-141-0x0000000000000000-mapping.dmp

          • memory/4988-142-0x0000000000000000-mapping.dmp