Analysis

  • max time kernel
    48s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:16

General

  • Target

    aa584df13a96e262ae0d877799d392ee9b29411f5f891fe2a2f1bd9de57d8a89.exe

  • Size

    602KB

  • MD5

    111c300514f039fa3f94b00e46a09ea7

  • SHA1

    d3fd41196859a71a8863e58c3da486e603027d32

  • SHA256

    aa584df13a96e262ae0d877799d392ee9b29411f5f891fe2a2f1bd9de57d8a89

  • SHA512

    091c30d066fc785dae717d609edaf6a13d6c47b18deb73d175d2bc820b4ede57b4df0887b3d68867a1e26f6fa817060b76db8d9b9bfc29db8efc0f1a640ad905

  • SSDEEP

    12288:EIny5DYTkIrVUPUOGh+qtBAuq31Rltq8K2W6cW:iUTks3DtBA1nXoccW

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\aa584df13a96e262ae0d877799d392ee9b29411f5f891fe2a2f1bd9de57d8a89.exe
    "C:\Users\Admin\AppData\Local\Temp\aa584df13a96e262ae0d877799d392ee9b29411f5f891fe2a2f1bd9de57d8a89.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:1288
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:816
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1728
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:372
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1756
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1692
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1656
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1296
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1044
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2028
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1668
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:740
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2012
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1768

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d1784429902895d518c838ac1d935657

            SHA1

            378db13b7e32dc397d127513af88a8cf1127c81d

            SHA256

            310d7f6db5bbc1438528cce859aa1484ac8efb20ee9901b4ba5eabcbf7f60b8e

            SHA512

            a115bdc70aea9cd306d9c3d5b777a3caddfbfd9a8e107638b0dba1116038c299e4dd1799c2708124a2c20a3cc58a7cbf3c5a323bf81ce1c0183fd303fdc0aeea

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2b4810378cba9365aa25395f0e25924b

            SHA1

            c8db7b389b3264cd5f65f5f4fa177d16fc01a5c3

            SHA256

            fa9e4912a3493b7c5bf45cd57ce9f59a9679513436e278fbb91ae8246640de07

            SHA512

            d8435835462fab9acd0a6220e6e32f7303767516f0ae38497a064ffc91d2c8afc18f04b0554eef6a17429d038556a7c460ca9c594ddbfacc8f4c145c98a9fcb4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b42b9d96272aa433ffce51af250df652

            SHA1

            e0e21b0d410f3ce6aa52aeed4d27c4969f01db6c

            SHA256

            f2c14c10678a199d91e2b07baa8f1f977ca14b1a83a91fed892ddf1dda96644c

            SHA512

            dfae4f83de990bab22bf6f49f0c43a81d03135ec0ee62957d851930caf51e651e0dbe1dca880fce2644e5dc1fc40cd38e498027d3e2429141ed6f4ef2b364731

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42fc9daa59064a8e663d78d3caa2447c

            SHA1

            ceb5cf16b1140ae1e54b13f109fc978b81332c63

            SHA256

            2602abe96374741a9d06f96f00e696e6b95db4f0c7f092ac8674c7a5de83ec53

            SHA512

            f0184dfe973a9ac14742a47948b379a7ddc436a586b56779bd762769dd81b0af9ee71697a13967652b4926d68f75dc25265ecf26964a470d51093dc986b81ed2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42fc9daa59064a8e663d78d3caa2447c

            SHA1

            ceb5cf16b1140ae1e54b13f109fc978b81332c63

            SHA256

            2602abe96374741a9d06f96f00e696e6b95db4f0c7f092ac8674c7a5de83ec53

            SHA512

            f0184dfe973a9ac14742a47948b379a7ddc436a586b56779bd762769dd81b0af9ee71697a13967652b4926d68f75dc25265ecf26964a470d51093dc986b81ed2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            11d5e0fa1a8b82141704c773341d20cf

            SHA1

            bac0e857cfd4c046137b8b11edea9289d59df6b3

            SHA256

            f31561a0bc000fc6673599ad12d1c5d5e8327686fc76fcd2b4af07c77691529b

            SHA512

            c81802584478eec7d9e734caf2438decb74ad75c6c50d6c08adbc9af664ce4dbda33b53e4af3ecb38e7ba843c32daea0a668d94cf9f8e2bee9cc468906daaae1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            11d5e0fa1a8b82141704c773341d20cf

            SHA1

            bac0e857cfd4c046137b8b11edea9289d59df6b3

            SHA256

            f31561a0bc000fc6673599ad12d1c5d5e8327686fc76fcd2b4af07c77691529b

            SHA512

            c81802584478eec7d9e734caf2438decb74ad75c6c50d6c08adbc9af664ce4dbda33b53e4af3ecb38e7ba843c32daea0a668d94cf9f8e2bee9cc468906daaae1

          • \Users\Admin\AppData\Local\Temp\nst210B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst210B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst210B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst210B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst210B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d1784429902895d518c838ac1d935657

            SHA1

            378db13b7e32dc397d127513af88a8cf1127c81d

            SHA256

            310d7f6db5bbc1438528cce859aa1484ac8efb20ee9901b4ba5eabcbf7f60b8e

            SHA512

            a115bdc70aea9cd306d9c3d5b777a3caddfbfd9a8e107638b0dba1116038c299e4dd1799c2708124a2c20a3cc58a7cbf3c5a323bf81ce1c0183fd303fdc0aeea

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d1784429902895d518c838ac1d935657

            SHA1

            378db13b7e32dc397d127513af88a8cf1127c81d

            SHA256

            310d7f6db5bbc1438528cce859aa1484ac8efb20ee9901b4ba5eabcbf7f60b8e

            SHA512

            a115bdc70aea9cd306d9c3d5b777a3caddfbfd9a8e107638b0dba1116038c299e4dd1799c2708124a2c20a3cc58a7cbf3c5a323bf81ce1c0183fd303fdc0aeea

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d1784429902895d518c838ac1d935657

            SHA1

            378db13b7e32dc397d127513af88a8cf1127c81d

            SHA256

            310d7f6db5bbc1438528cce859aa1484ac8efb20ee9901b4ba5eabcbf7f60b8e

            SHA512

            a115bdc70aea9cd306d9c3d5b777a3caddfbfd9a8e107638b0dba1116038c299e4dd1799c2708124a2c20a3cc58a7cbf3c5a323bf81ce1c0183fd303fdc0aeea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2b4810378cba9365aa25395f0e25924b

            SHA1

            c8db7b389b3264cd5f65f5f4fa177d16fc01a5c3

            SHA256

            fa9e4912a3493b7c5bf45cd57ce9f59a9679513436e278fbb91ae8246640de07

            SHA512

            d8435835462fab9acd0a6220e6e32f7303767516f0ae38497a064ffc91d2c8afc18f04b0554eef6a17429d038556a7c460ca9c594ddbfacc8f4c145c98a9fcb4

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2b4810378cba9365aa25395f0e25924b

            SHA1

            c8db7b389b3264cd5f65f5f4fa177d16fc01a5c3

            SHA256

            fa9e4912a3493b7c5bf45cd57ce9f59a9679513436e278fbb91ae8246640de07

            SHA512

            d8435835462fab9acd0a6220e6e32f7303767516f0ae38497a064ffc91d2c8afc18f04b0554eef6a17429d038556a7c460ca9c594ddbfacc8f4c145c98a9fcb4

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b42b9d96272aa433ffce51af250df652

            SHA1

            e0e21b0d410f3ce6aa52aeed4d27c4969f01db6c

            SHA256

            f2c14c10678a199d91e2b07baa8f1f977ca14b1a83a91fed892ddf1dda96644c

            SHA512

            dfae4f83de990bab22bf6f49f0c43a81d03135ec0ee62957d851930caf51e651e0dbe1dca880fce2644e5dc1fc40cd38e498027d3e2429141ed6f4ef2b364731

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42fc9daa59064a8e663d78d3caa2447c

            SHA1

            ceb5cf16b1140ae1e54b13f109fc978b81332c63

            SHA256

            2602abe96374741a9d06f96f00e696e6b95db4f0c7f092ac8674c7a5de83ec53

            SHA512

            f0184dfe973a9ac14742a47948b379a7ddc436a586b56779bd762769dd81b0af9ee71697a13967652b4926d68f75dc25265ecf26964a470d51093dc986b81ed2

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            11d5e0fa1a8b82141704c773341d20cf

            SHA1

            bac0e857cfd4c046137b8b11edea9289d59df6b3

            SHA256

            f31561a0bc000fc6673599ad12d1c5d5e8327686fc76fcd2b4af07c77691529b

            SHA512

            c81802584478eec7d9e734caf2438decb74ad75c6c50d6c08adbc9af664ce4dbda33b53e4af3ecb38e7ba843c32daea0a668d94cf9f8e2bee9cc468906daaae1

          • memory/372-61-0x0000000000000000-mapping.dmp

          • memory/740-87-0x0000000000000000-mapping.dmp

          • memory/816-57-0x0000000000000000-mapping.dmp

          • memory/1044-80-0x0000000000000000-mapping.dmp

          • memory/1288-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1288-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1288-54-0x0000000075FE1000-0x0000000075FE3000-memory.dmp

            Filesize

            8KB

          • memory/1296-76-0x0000000000000000-mapping.dmp

          • memory/1656-70-0x0000000000000000-mapping.dmp

          • memory/1668-86-0x0000000000000000-mapping.dmp

          • memory/1692-64-0x0000000000000000-mapping.dmp

          • memory/1728-58-0x0000000000000000-mapping.dmp

          • memory/1756-62-0x0000000000000000-mapping.dmp

          • memory/2028-81-0x0000000000000000-mapping.dmp