Analysis

  • max time kernel
    166s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:09

General

  • Target

    e5123812825be1f240db8fb8990300ff1a78b881ebd42b53b99a2fcaa93629de.exe

  • Size

    603KB

  • MD5

    449e0641329aaf74c16caae8d6716ba2

  • SHA1

    32a2fb5e429caf3bd7fbabfc0e2a3fc34b0f5d6a

  • SHA256

    e5123812825be1f240db8fb8990300ff1a78b881ebd42b53b99a2fcaa93629de

  • SHA512

    f8d98885776c30b8212a5b0b5130187427f87b9b566072f048f78b9134e5bdf0f93a73c6ee31f14ad668dc1e8b0b9fbf9e798aabe4c758b46ba0ac7254164332

  • SSDEEP

    12288:MIny5DYTMIgmarj+Dt9BuOVZyTsIinwRkgVVfrmP33MMm9MlXl01jfk:KUTMrmCj2jBuGcgIdnVjmP33q9MYp

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\e5123812825be1f240db8fb8990300ff1a78b881ebd42b53b99a2fcaa93629de.exe
    "C:\Users\Admin\AppData\Local\Temp\e5123812825be1f240db8fb8990300ff1a78b881ebd42b53b99a2fcaa93629de.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:1616
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3380
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3476
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1880
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1796
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1556
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3268
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3900
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:936
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2504
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3192
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4456
          • 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:4752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1604

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nst4EFD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d3f196dc0ac62ca427c3c8fba1a977ed

            SHA1

            f5d17bd78785f28cf21e61884f0b08e34f286257

            SHA256

            4ffabbc262ca3404a96082673c5ad1a2b79999fb8f7fa719aa5f45b518fd06cc

            SHA512

            a1cf018e86c76212d93e1c07856ab0cdbeb355837f476cdc556442a081655c55cb2147daded80fbef64bb578b26fce0fd55a7b1a95fbcae3e7b7c13584362b5c

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d3f196dc0ac62ca427c3c8fba1a977ed

            SHA1

            f5d17bd78785f28cf21e61884f0b08e34f286257

            SHA256

            4ffabbc262ca3404a96082673c5ad1a2b79999fb8f7fa719aa5f45b518fd06cc

            SHA512

            a1cf018e86c76212d93e1c07856ab0cdbeb355837f476cdc556442a081655c55cb2147daded80fbef64bb578b26fce0fd55a7b1a95fbcae3e7b7c13584362b5c

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d3f196dc0ac62ca427c3c8fba1a977ed

            SHA1

            f5d17bd78785f28cf21e61884f0b08e34f286257

            SHA256

            4ffabbc262ca3404a96082673c5ad1a2b79999fb8f7fa719aa5f45b518fd06cc

            SHA512

            a1cf018e86c76212d93e1c07856ab0cdbeb355837f476cdc556442a081655c55cb2147daded80fbef64bb578b26fce0fd55a7b1a95fbcae3e7b7c13584362b5c

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            d3f196dc0ac62ca427c3c8fba1a977ed

            SHA1

            f5d17bd78785f28cf21e61884f0b08e34f286257

            SHA256

            4ffabbc262ca3404a96082673c5ad1a2b79999fb8f7fa719aa5f45b518fd06cc

            SHA512

            a1cf018e86c76212d93e1c07856ab0cdbeb355837f476cdc556442a081655c55cb2147daded80fbef64bb578b26fce0fd55a7b1a95fbcae3e7b7c13584362b5c

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            81fb42941d217044f8d16b27b206774f

            SHA1

            c27b0eefefa45f314b6b697ef2b71dcd3cac235b

            SHA256

            5e63a2cc8126a48b5dc6a126cc9ab8aceccbef95ccdaf21729d8048ea82b2a18

            SHA512

            ccd7896f3641cfc3c95856b26a4a29b0bb5721652e404ceee8b4bce1eb819f511a3cab8a74b5be53ffdc9955b40a3afffd91d4a9f95d937a1bdfd7c065637361

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            81fb42941d217044f8d16b27b206774f

            SHA1

            c27b0eefefa45f314b6b697ef2b71dcd3cac235b

            SHA256

            5e63a2cc8126a48b5dc6a126cc9ab8aceccbef95ccdaf21729d8048ea82b2a18

            SHA512

            ccd7896f3641cfc3c95856b26a4a29b0bb5721652e404ceee8b4bce1eb819f511a3cab8a74b5be53ffdc9955b40a3afffd91d4a9f95d937a1bdfd7c065637361

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            81fb42941d217044f8d16b27b206774f

            SHA1

            c27b0eefefa45f314b6b697ef2b71dcd3cac235b

            SHA256

            5e63a2cc8126a48b5dc6a126cc9ab8aceccbef95ccdaf21729d8048ea82b2a18

            SHA512

            ccd7896f3641cfc3c95856b26a4a29b0bb5721652e404ceee8b4bce1eb819f511a3cab8a74b5be53ffdc9955b40a3afffd91d4a9f95d937a1bdfd7c065637361

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            29ca8f8c459baaae795a5fffe3a1eedc

            SHA1

            86c516ec733947b554d96221c3e9953858598146

            SHA256

            da78c6623ef29f584900299f1520253f6cd04c4c62a2c53cb177b9c38c7a939b

            SHA512

            54fc3ad02913855c88c8b690a78131d46fee9562c27581751cd1f1053672b438380abd3a39767bde0cd50d48c252f95091abffa22271ea5ba39b428932d3c63d

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            29ca8f8c459baaae795a5fffe3a1eedc

            SHA1

            86c516ec733947b554d96221c3e9953858598146

            SHA256

            da78c6623ef29f584900299f1520253f6cd04c4c62a2c53cb177b9c38c7a939b

            SHA512

            54fc3ad02913855c88c8b690a78131d46fee9562c27581751cd1f1053672b438380abd3a39767bde0cd50d48c252f95091abffa22271ea5ba39b428932d3c63d

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            72e2b9340445d60bdfd204eefb4bb68e

            SHA1

            54d722b3d78bf7df9ce77dcdb20aa56aee0720a9

            SHA256

            812b92480d82602461a114bacc0305fa4258b9ce9a1a7aa1b1f4b491262adf29

            SHA512

            bc4b9a767bc01c83471d3131b21c1819080300f2991fe68e65a5b3665cd4b5d40b535fc040bf94a7bfb240b1f5e5afd3a54635d21db561a69171a578a0a3ce41

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            72e2b9340445d60bdfd204eefb4bb68e

            SHA1

            54d722b3d78bf7df9ce77dcdb20aa56aee0720a9

            SHA256

            812b92480d82602461a114bacc0305fa4258b9ce9a1a7aa1b1f4b491262adf29

            SHA512

            bc4b9a767bc01c83471d3131b21c1819080300f2991fe68e65a5b3665cd4b5d40b535fc040bf94a7bfb240b1f5e5afd3a54635d21db561a69171a578a0a3ce41

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            72e2b9340445d60bdfd204eefb4bb68e

            SHA1

            54d722b3d78bf7df9ce77dcdb20aa56aee0720a9

            SHA256

            812b92480d82602461a114bacc0305fa4258b9ce9a1a7aa1b1f4b491262adf29

            SHA512

            bc4b9a767bc01c83471d3131b21c1819080300f2991fe68e65a5b3665cd4b5d40b535fc040bf94a7bfb240b1f5e5afd3a54635d21db561a69171a578a0a3ce41

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c7e5b5d34751174e0a91509d521f4c16

            SHA1

            4a3d6acf6d658eb1ec9a58d7766a79c1bbb44b68

            SHA256

            80b70cdecc3c853c5f0cd62db48ff65eafdbc390a8b481cd6882f8572edf19a7

            SHA512

            17d20c3742423776572bb9b3d70e3cc88362784484670ca3a9fb902221f9a1e962f5bc6fe9ab3d1375e4c849f4b4f4796b7fe23e87f8e30c515983b6c097313e

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c7e5b5d34751174e0a91509d521f4c16

            SHA1

            4a3d6acf6d658eb1ec9a58d7766a79c1bbb44b68

            SHA256

            80b70cdecc3c853c5f0cd62db48ff65eafdbc390a8b481cd6882f8572edf19a7

            SHA512

            17d20c3742423776572bb9b3d70e3cc88362784484670ca3a9fb902221f9a1e962f5bc6fe9ab3d1375e4c849f4b4f4796b7fe23e87f8e30c515983b6c097313e

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            c7e5b5d34751174e0a91509d521f4c16

            SHA1

            4a3d6acf6d658eb1ec9a58d7766a79c1bbb44b68

            SHA256

            80b70cdecc3c853c5f0cd62db48ff65eafdbc390a8b481cd6882f8572edf19a7

            SHA512

            17d20c3742423776572bb9b3d70e3cc88362784484670ca3a9fb902221f9a1e962f5bc6fe9ab3d1375e4c849f4b4f4796b7fe23e87f8e30c515983b6c097313e

          • memory/936-159-0x0000000000000000-mapping.dmp
          • memory/1556-143-0x0000000000000000-mapping.dmp
          • memory/1616-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1616-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1616-136-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1796-142-0x0000000000000000-mapping.dmp
          • memory/1880-141-0x0000000000000000-mapping.dmp
          • memory/2504-160-0x0000000000000000-mapping.dmp
          • memory/3192-166-0x0000000000000000-mapping.dmp
          • memory/3268-148-0x0000000000000000-mapping.dmp
          • memory/3380-137-0x0000000000000000-mapping.dmp
          • memory/3476-138-0x0000000000000000-mapping.dmp
          • memory/3900-154-0x0000000000000000-mapping.dmp
          • memory/4456-167-0x0000000000000000-mapping.dmp