Analysis

  • max time kernel
    100s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23/11/2022, 23:19

General

  • Target

    56a3ece488d7799534b973708ceee84c636bfcbf5c4403abb175bf2249b41ecd.exe

  • Size

    562KB

  • MD5

    e5e7c465c6ee98cca0b0901be639a8fb

  • SHA1

    da1c12206edffc610c712e53e72d54b26a625b21

  • SHA256

    56a3ece488d7799534b973708ceee84c636bfcbf5c4403abb175bf2249b41ecd

  • SHA512

    a7b3d30333ae6fa2c2f278ecd16d570979c4f1fd1152b4de122de1d59b6793fcc65e99152ea95991de0261534b2e83a032cf0e092dfe2a6b212447c32d1c0b18

  • SSDEEP

    12288:aPRYzHbfRLl14z8sWO7IVUlIWWOej0AmtdsW+0c6ooY2TcYA+Bh:Hz7fRB88sR09WWOwK0W+0c6ooJT5j

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\56a3ece488d7799534b973708ceee84c636bfcbf5c4403abb175bf2249b41ecd.exe
    "C:\Users\Admin\AppData\Local\Temp\56a3ece488d7799534b973708ceee84c636bfcbf5c4403abb175bf2249b41ecd.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:1252
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1040
      • 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:1480
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1172
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1768
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1468
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1672
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1392
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1932
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:996
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1720
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:840
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1608

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1bfbc9b0e13d778d0235279dcf8c174b

                  SHA1

                  aed63f53dd27e7051e4ba7bb94aca841c2dbc301

                  SHA256

                  a481e5c048afae99e3547477c0d0646dc4b4325858e97a5c929876f4c5d52794

                  SHA512

                  fb6fa6bd3dd1e0eda7095ba5c44ae72d940900a5173b6596b1407b38ed64eb58bb8acc3b5ad3d41678e89d280bf52875aa50b58c7d28a6a1907620ec537f9ad5

                • C:\Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  6c854ee45dacb156dd5e3a362e15c45a

                  SHA1

                  f5dc65e63d9ccdc9de732b0b30143539dfdfcf4b

                  SHA256

                  a48568e7f833ad498368975f6a3db510fed40602934d68d09c4943c02c4e6a29

                  SHA512

                  57af82d3d1d887a356d63f6c979509802e2d8393b11d2efd47a257bc2fa02ecde04fdd6fccaa256f8a9c2f8d77cd18a48ace4c80f63729cc43eeab74eb23d76c

                • C:\Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  0f458d5707f6349c58c1abb426ff2887

                  SHA1

                  52675e0bf8e8c79bf3bcbb0a9614efe50bf454f7

                  SHA256

                  395ab2c670b72b32063a2d6670c7d313c2ddbf5d5b671c6dfbe3c12f72cb5238

                  SHA512

                  9b77233803c5676bda0cfd443e6a7c8f94b8c05aeb92591ca4ffecc8bbce573737f8051704bae6b4f26c78212c50adc3c28f0402e29460f959f416d49f2921eb

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  157560e942825f7cc4150d2ef63f5def

                  SHA1

                  7663978b9e50444693611296886511394155aa91

                  SHA256

                  d30101065d51a654f9c868cfee91c580886175e68e8218abf735f3b382840aa2

                  SHA512

                  a2fed9a3469637007b2a6784bb956a4e0f17f504dee22f631365bc74c66ede78af4da81a1a1285a91a602116d29d6f97eb96a95761d8b029015a608abf9cf1c0

                • C:\Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  157560e942825f7cc4150d2ef63f5def

                  SHA1

                  7663978b9e50444693611296886511394155aa91

                  SHA256

                  d30101065d51a654f9c868cfee91c580886175e68e8218abf735f3b382840aa2

                  SHA512

                  a2fed9a3469637007b2a6784bb956a4e0f17f504dee22f631365bc74c66ede78af4da81a1a1285a91a602116d29d6f97eb96a95761d8b029015a608abf9cf1c0

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  8408cb7adb5133735fc2f72c7131de1f

                  SHA1

                  4f22b59e3b7d9291d32e83fa7df8dfe5f1ddc4e0

                  SHA256

                  32533fde19209c0f1e86e62a269078f94297b7451eb313e3d5afeafa8a4958e5

                  SHA512

                  6a0fd9cc8a61525e63f1c3da8bd6e7e5b4e3476888ae4befa5408282ea86bf0dfef3b95886a0ff4b735a0e702ae633ff7ebc1daa1e255ce4e226b9c66e5ceb01

                • C:\Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  8408cb7adb5133735fc2f72c7131de1f

                  SHA1

                  4f22b59e3b7d9291d32e83fa7df8dfe5f1ddc4e0

                  SHA256

                  32533fde19209c0f1e86e62a269078f94297b7451eb313e3d5afeafa8a4958e5

                  SHA512

                  6a0fd9cc8a61525e63f1c3da8bd6e7e5b4e3476888ae4befa5408282ea86bf0dfef3b95886a0ff4b735a0e702ae633ff7ebc1daa1e255ce4e226b9c66e5ceb01

                • \Users\Admin\AppData\Local\Temp\nsoAFD2.tmp\System.dll

                  Filesize

                  11KB

                  MD5

                  c17103ae9072a06da581dec998343fc1

                  SHA1

                  b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

                  SHA256

                  dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

                  SHA512

                  d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

                • \Users\Admin\AppData\Local\Temp\nsoAFD2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoAFD2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoAFD2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Users\Admin\AppData\Local\Temp\nsoAFD2.tmp\nsExec.dll

                  Filesize

                  6KB

                  MD5

                  acc2b699edfea5bf5aae45aba3a41e96

                  SHA1

                  d2accf4d494e43ceb2cff69abe4dd17147d29cc2

                  SHA256

                  168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

                  SHA512

                  e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1bfbc9b0e13d778d0235279dcf8c174b

                  SHA1

                  aed63f53dd27e7051e4ba7bb94aca841c2dbc301

                  SHA256

                  a481e5c048afae99e3547477c0d0646dc4b4325858e97a5c929876f4c5d52794

                  SHA512

                  fb6fa6bd3dd1e0eda7095ba5c44ae72d940900a5173b6596b1407b38ed64eb58bb8acc3b5ad3d41678e89d280bf52875aa50b58c7d28a6a1907620ec537f9ad5

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1bfbc9b0e13d778d0235279dcf8c174b

                  SHA1

                  aed63f53dd27e7051e4ba7bb94aca841c2dbc301

                  SHA256

                  a481e5c048afae99e3547477c0d0646dc4b4325858e97a5c929876f4c5d52794

                  SHA512

                  fb6fa6bd3dd1e0eda7095ba5c44ae72d940900a5173b6596b1407b38ed64eb58bb8acc3b5ad3d41678e89d280bf52875aa50b58c7d28a6a1907620ec537f9ad5

                • \Windows\SysWOW64\hfnapi.dll

                  Filesize

                  106KB

                  MD5

                  1bfbc9b0e13d778d0235279dcf8c174b

                  SHA1

                  aed63f53dd27e7051e4ba7bb94aca841c2dbc301

                  SHA256

                  a481e5c048afae99e3547477c0d0646dc4b4325858e97a5c929876f4c5d52794

                  SHA512

                  fb6fa6bd3dd1e0eda7095ba5c44ae72d940900a5173b6596b1407b38ed64eb58bb8acc3b5ad3d41678e89d280bf52875aa50b58c7d28a6a1907620ec537f9ad5

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  6c854ee45dacb156dd5e3a362e15c45a

                  SHA1

                  f5dc65e63d9ccdc9de732b0b30143539dfdfcf4b

                  SHA256

                  a48568e7f833ad498368975f6a3db510fed40602934d68d09c4943c02c4e6a29

                  SHA512

                  57af82d3d1d887a356d63f6c979509802e2d8393b11d2efd47a257bc2fa02ecde04fdd6fccaa256f8a9c2f8d77cd18a48ace4c80f63729cc43eeab74eb23d76c

                • \Windows\SysWOW64\hfpapi.dll

                  Filesize

                  241KB

                  MD5

                  6c854ee45dacb156dd5e3a362e15c45a

                  SHA1

                  f5dc65e63d9ccdc9de732b0b30143539dfdfcf4b

                  SHA256

                  a48568e7f833ad498368975f6a3db510fed40602934d68d09c4943c02c4e6a29

                  SHA512

                  57af82d3d1d887a356d63f6c979509802e2d8393b11d2efd47a257bc2fa02ecde04fdd6fccaa256f8a9c2f8d77cd18a48ace4c80f63729cc43eeab74eb23d76c

                • \Windows\SysWOW64\installd.exe

                  Filesize

                  108KB

                  MD5

                  0f458d5707f6349c58c1abb426ff2887

                  SHA1

                  52675e0bf8e8c79bf3bcbb0a9614efe50bf454f7

                  SHA256

                  395ab2c670b72b32063a2d6670c7d313c2ddbf5d5b671c6dfbe3c12f72cb5238

                  SHA512

                  9b77233803c5676bda0cfd443e6a7c8f94b8c05aeb92591ca4ffecc8bbce573737f8051704bae6b4f26c78212c50adc3c28f0402e29460f959f416d49f2921eb

                • \Windows\SysWOW64\nethtsrv.exe

                  Filesize

                  176KB

                  MD5

                  157560e942825f7cc4150d2ef63f5def

                  SHA1

                  7663978b9e50444693611296886511394155aa91

                  SHA256

                  d30101065d51a654f9c868cfee91c580886175e68e8218abf735f3b382840aa2

                  SHA512

                  a2fed9a3469637007b2a6784bb956a4e0f17f504dee22f631365bc74c66ede78af4da81a1a1285a91a602116d29d6f97eb96a95761d8b029015a608abf9cf1c0

                • \Windows\SysWOW64\netupdsrv.exe

                  Filesize

                  158KB

                  MD5

                  8408cb7adb5133735fc2f72c7131de1f

                  SHA1

                  4f22b59e3b7d9291d32e83fa7df8dfe5f1ddc4e0

                  SHA256

                  32533fde19209c0f1e86e62a269078f94297b7451eb313e3d5afeafa8a4958e5

                  SHA512

                  6a0fd9cc8a61525e63f1c3da8bd6e7e5b4e3476888ae4befa5408282ea86bf0dfef3b95886a0ff4b735a0e702ae633ff7ebc1daa1e255ce4e226b9c66e5ceb01

                • memory/1252-69-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1252-54-0x00000000760D1000-0x00000000760D3000-memory.dmp

                  Filesize

                  8KB

                • memory/1252-55-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB

                • memory/1252-91-0x0000000000360000-0x00000000007BE000-memory.dmp

                  Filesize

                  4.4MB